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Forested Natural Areas Inventory and Assessment - February 1994 CITY OF TIGARD FORESTED NATURAL AREAS INVENTORY AND ASSESSMENT Prepared for: The City of Tigard 13125 SW Hall Blvd. Tigard, OR 97223 503/639-4171 Prepared by: Michael R. Reichenbach Arboreal Enterprises 4422 Norfolk Street West Linn, OR 97068 503/656-7835 February, 1994 EXECUTIVE SUMMARY The Forest Areas Inventory and Assessment was a systematic effort to find, describe, and classify Forested Natural Areas for the City of Tigard. The project involved a survey of all Forested Natural Areas within the active planning boundary established in 1982. The survey was conducted by Mike Reichenbach of Arboreal Enterprise between October 1993 and January 1994. A combination of aerial photo interpretation and ground inspection was used to identify potential natural areas. Forested Natural Areas were ranked using four criteria: 1) Natural quality; 2) Size; 3) Linkages; and 4) Special features. On the basis of the resulting ranking, forested natural areas were grouped by natural area potential; low, moderate, and high. Efforts to protect natural areas should be focused first on areas with higher potential. On-site inspections may be needed to identify the boundaries of specific areas within larger units for acquisition and to verify existing data for each unit. Of the 42 Forested Natural Areas identified, 27 have no protection. Of the 25 Forested Natural Areas with moderate or high potential, 11 have no protection, 11 have partial protection and only three have full protection. Many of the areas with no protection are upland forests. Protection for sites was indicated by public ownership, property held in common or in dedicated open space, or areas that were designated as wetlands. Actions should be taken to encourage landowners to retain trees and Forested Natural Areas. These actions might include a combination of: 1) Regulations, such as requiring a review of the site and approval of site plans by a certified arborist or consulting urban forester prior to development; 2) Incentives, such as allowing flexibility in structure setbacks, road widths and grade; 3) Educational efforts such as providing information to the landowners about how to retain and protect trees during development; and 4) Acquisition. For Units with high natural area potential, acquisition and the purchase of conservation easements might be considered. I have recommended this for five units. Three of these are partially owned by the city or local schools, units 19, 50 and 55. Unit 19 includes part of Woodard Park, unit 50 includes lands owned by Fowler School and unit 55 includes Cook Park. The fourth, Unit 22, is located east of Tigard Street between the Southern Pacific Railroad Tracks and the Oregon Electric Railroad tracks. This site includes a remnant of Oregon white oak/Ponderosa pine savanna. The fifth, Unit 32, Page iii February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory on Ash Creek, is unusual because of the large number of western red cedar in the area and the quality of the creek. On some of the sites, tree retention will not be compatible with plans for development. This is especially true for areas where Douglas-fir is the dominant species. Tree removal and replacement with native species may be the only practical means to reduce risk from wind throw while ensuring a continuity in the natural vegetation of the area. Finally, on public sites interpretive information about the site and the reasons for its preservation should be developed. Interpretive sites can set an example, help develop community understanding and encourage public involvement in the preservation of the community's natural heritage. Page iv February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE OF CONTENTS EXECUTIVE SUMMARY iii LIST OF TABLES vi APPENDIX CONTENTS vi CHAPTER 1.Purpose and Scope i CHAPTER 2.Definitions 3 CHAPTER 3.Classification of Forested and Unique Natural Areas 5 CHAPTER 4_Methods 7 CHAPTER 5.Ranking and Data Collection 9 5.1 Ranking 9 5.1.1 Natural Quality 10 5.1.2 Size of Natural Area 11 5.1.3 Linkages to Other Natural Areas 12 5.1.4 Special Features 12 5.2Data Collection 12 CHAPTER 6Findings 15 6.1 Regulation 16 6.2Incentives 16 6.3 Educational Efforts 17 6.4 Acquisition 17 6.5 Summary i8 CHAPTER 7Forested Urban Areas and Riparian Areas 29 CHAPTER 8Natural Resource Documents 31 8.1 Tigard Natural Resource Inventory 31 8.1.1 A. Little Bull Mountain Natural Forest Area 31 8.1.2 B. Summer Creek Floodplain and Riparian Forest 32 8.1.3 C. Krueger Creek 32 8.1.4 D_ Summer Creek Floodplain and Riparian Forest 32 8.1.5 E. Tigard/Tiedman Fanno Creek Marsh/Floodplain 32 8.1.6 F. Tualatin River Floodplain West of Cook Park 32 8.1.7 G_ Fanno Creek Park/Main Street 32 8.L8 H. Fanno Creek North of North Dakota 32 8.1,9 I_ Fanno Creek HallBonita - Bonita/Durham 32 8.1.10 J. Ravine 108/113 Tualatin Floodplain 33 8.1.11M. Summer Creek/Woodward School Fir Grove 33 8.1.12 R_ Kallstrom Fir Grove 33 8.2 Community Development Code Pertaining To Tree Removal 33 CHAPTER 9Sources of Assistance 37 9.1 Sources of Financial Assistance 37 9.1.1 Oregon Department of Forestry 37 9.1.2 Land And Water Conservation Trust Fund 37 Page v February, I994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory 9.1.3 Charitable Foundations 38 9.1.4 Oregon Youth Conservation Corps (OYCC) 38 9.1.5 Intermodal Surface Transportation Efficiency Act 38 9.1.6 Oregon State Marine Board 39 9.1.7 Other Funding Sources 39 9.2 Sources of Technical Assistance 40 APPENDIX 41 LIST OF TABLES Table 3.1. Natural Area Categories and Features Table 5.1. Ranking Criteria and Value Ranges Table 5.2. Stand Ages Table 6.1. Forested Natural Areas Data Summary Table 6.2. Forested Natural Areas Recommendations APPENDIX CONTENTS -- Appendix A. Maps Appendix B. Information on Unit#1 Appendix C. Data Sheets for Each Unit Appendix D Landscape Plantings with Seedlings Appendix E Olympia, Washington's, Tree Protection and Replacement Ordinance Page vi February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 1. PURPOSE AND SCOPE The Forest Areas Inventory and Assessment was a systematic effort to find, describe, and classify Forested Natural Areas for the City of Tigard. The purpose was to provide the city with information about Forested Natural Areas that will be useful to the ongoing orderly development of Tigard. The project involved a survey of all Forested Natural Areas within the active planning boundary established in 1982. The survey documented in this report describes the survey methods, summarizes the results, makes recommendations for actions that may help preserve Forested Natural Areas, reviews the comprehensive plan for consistency with the inventory results, and provides recommendations. Funding and assistance sources are also identified. Maps that depict the location of each forested natural area are included in the Appendix. It is anticipated that the City of Tigard will use this information to take actions to preserve selected high quality Forested Natural Areas. Page 1 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 2. DEFINITIONS The following definitions are used in this report. Forest: An area of greater than 5 acres in size, having woody vegetation capable of growing to heights of over 15 feet, with a canopy cover of at least 30% of the surface area. Roadside, streamside and shelterbelt strips of trees must have a crown width of at least 120 feet to qualify as forestland. Unimproved roads, trails and streams, or other bodies of water or clearings in forested areas are classified as forestland if they are less than 120 feet wide. The area must be capable of being sustained in a forested condition) Grove: An area of trees of less than 5 acres, that otherwise meets the definition of a forest. Natural Area: "a landscape unit (a) composed of plant and animal communities, water bodies, soil, and rock, (b) largely devoid of man-made structures, and (c) maintained and managed in such a way as to promote or enhance populations of wildlife.2 'Iverson. L.R., R.L. Oliver. D.P. Tucker, P.G. Risser, C.D. Burnett, and R.G. Rayburn. 1989. Forest Resources of Illinois: An Atlas and Analysis of Spatial and Temporal Trends. Illinois Natural History Survey Special Publication 11. 181p. 2Poracsky, J., L. Sharp, E. Lev, and M. Scott. 1992. Metropolitan Greenspaces Program Data Analysis: Summary Conclusions and Recommendations, Final Report. Metro. 600 NE Grand Ave, Portland Oregon. Page I. Page 3 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 3. CLASSIFICATION OF FORESTED AND UNIQUE NATURAL AREAS White (1978)3 presents an accepted classification system based on seven categories of natural areas. Each is defined by predetermined features. Table 3.1 Natural Area Categories and Features, lists these seven categories modified from White's original work. Table 3.1. Natural Area Categories and Features NATURAL AREA FEATURE CATEGORY 1 Forested Natural Area Terrestrial or wetland natural community 2 Endangered Species Habitat with endangered species Habitat 3 Relict Species Habitat Habitat with relict species 4 Geologic Area Outstanding geologic feature 5 Natural Study Area Nature preserve or land that is managed and used for natural science studies 6 Unique Natural Area Unique natural feature 7 Aquatic Area Outstanding aquatic feature The survey for Tigard focused on forested areas within two of the categories adapted from White: Forested Natural Areas and Unique Natural Areas. Areas within other categories were not identified_ Forested Natural Areas meet both the definitions for a forest and a natural area. Due to budget and time constraints five acres was chosen as the smallest unit of area that would be commonly identified as a Forested Natural Area. Smaller areas were occasionally identified during the course of the survey. Usually this identification was on based on an uncommon habitat or a forested area of exceptional quality. For example, Oregon white oak savannas, likely to have been common during presettlement, are now missing from the landscape or are severely disturbed. Oregon white oak remnants exist, but their size is generally less than five acres. In addition 3White, John. 1978. Illinois Natural Areas Inventory Technical Report. Volume I Survey Methods and Results. Natural Land Institute and Department of Landscape Architecture University of Illinois. Page 5 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas inventor smaller areas may be included if they are adjacent to an identified wetland or other natural area. These smaller areas were generally, but not always, referred to as Unique Natural Areas. Unique Natural Areas are wooded areas of less than five acres that are unique by virtue of containing uncommon trees or plant associations. In future studies, a final category of forested area should be considered, that of the Forested Urban Area. Forested Urban Areas are the collection of trees and plants growing in developed areas. This includes wooded areas of less than five acres that are not identified as Unique Natural Areas. These areas are generally very disturbed natural habitats or are totally artificial landscapes. In most cases the understory vegetation, if present, is limited to lawns and garden areas. It was beyond the scope of this project to identify or inventory Forested Urban Areas. Chapter 7 describes forested urban areas and riparian areas. J Page 6 February, 1,994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 4. METHODS A combination of aerial photo interpretation and site inspection from the public right-of-way was used to collect information about potential natural areas. 4.1 Examination of Maps and Aerial Photographs Maps and aerial photographs were examined to select potential Forested Natural Areas, and unique natural areas. Identification of forested areas was primarily from aerial photographs. Black and white aerial photographs at 8" to 1 mile were obtained from the Agricultural Soil Conservation Service (ASCS). Coverage was from 1990. Color images at the same scale from flights flown in July of 1993 were also be used. Stereo pairs from different coverage taken in 1990 at approximately 1"=1000' were provided by the City of Tigard. 4.2 Ground Survey The ground survey was a means of checking aerial photo interpretation, screening potential areas, and determining characteristics of areas. To verify data interpreted from aerial photographs each potential site was inspected from the public right-of-way. In one instance, a landowner asked if more information could be collected about the site, therefore an on site inspection of this unit was made. The detailed information for this unit, unit one, is in the Appendix. Page 7 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventor. CHAPTER 5. RANKING AND DATA COLLECTION Identification of Forested Natural Areas and compilation of information about these natural areas are the first steps in the process of developing programs and policies to preserve these areas. 5.1 Ranking An assumption was made about the value of forested areas and about the desires of the general population with regard to preserving forested areas. I assumed that the general public values later stages of succession more than early successional stages. This can be supported by the public's desire for large old trees and old growth qualities in a forest. I also assumed that older forests are more likely to be representative of presettlement vegetation. Ecosystems representative of communities found during presettlement will generally be more stable and support the widest array of natural flora and fauna. On the basis of these assumptions, high quality Forested Natural Areas reflect a natural succession of plant communities and are undisturbed by human activity, or if disturbed, can easily be restored to a natural state . The highest quality would be an area that reflects the natural condition at the time of settlement, circa 1840. The potential value of the natural areas was ranked using a numeric system. This system uses the sum of four criteria: 1) Natural quality; 2) Size; 3) Linkages; and 4) Unique features to determine each natural or unique areas rank. Table 6.1: Ranking Criteria and Value Ranges shows these criteria with their range of values. This grading system accounts for natural quality, wildlife value, aesthetic value, and recreational value. Higher ranked areas will be more likely than lower ranked areas to be or contain areas that are worthy of preservation efforts. Page 9 Februar . 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventor% TABLE 5.1. Ranking Criteria and Value Ranges. ELEMENT RANKING Natural quality 1, 2, 3, 4, or 5 Size of natural area .1 per acre Linkages to other Natural Areas 0, .5, or 1 Presence of unique features, wetlands, 0, 1, 2, or 3 recreation potential or rare threatened or endangered species The costs of acquisition, cost of restoration, cost of future maintenance, and current ownership were purposely excluded from the ranking process. While these items will influence decisions about preservation, the value of preserving an area is separate from these considerations. Each of the criteria and their individual rankings are explained in the following sections. 5.1.1 Natural Quality Natural quality is related to the amount of disturbance evident and the successional stage. The grading system is modified from a system used in Illinois by White.4 The range of values is from 1 to 5 based on the following: 5 points: Relatively stable or undisturbed forested area. For example, A forest rated at 5 points would exhibit characteristics of an old growth forest, the dominant species would be representative of presettlement forests, and few indicators of disturbance would be evident. A forest area dominated by native conifers aged over 150 years having dead snags and large woody debris would be evidence of a forested area that would be score 5 points. 4 points: Old second growth or late successional or lightly disturbed communities. 3 points: Maturing forest stands, mid successional or moderately to heavily disturbed forested communities. For example, young to mature second growth forests. 4White, John. 1978. Illinois Natural Areas Inventory Technical Report,Volume I Survey Methods and Results. Natural Land Institute and Department of Landscape Architecture University of Illinois. Page 10 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory 2 points: Young stands, early successional or severely disturbed communities. This includes forested areas where succession has stopped due to human activity. 1 point: Very young, very early successional or very severely disturbed communities. For example, this would include recently clearcut forests that are beginning to regenerate. Table 5.2: Stand Ages lists successional stages in terms of age of the dominant trees. This table applies to the typical Douglas-fir dominated stands common in the Willamette valley. TABLE 5.2. Stand Ages. Age of Stand Age of dominant Trees Old growth >150 Old second growth 90-150 Maturing forests 40-90 Young forests 20-40 Very young forests <20 - The following often indicate disturbance: • Presence of non-native or exotic species. Exotic species are often indicators of disturbance. While one or two exotics per acre will not necessarily disturb the natural succession of the forest, certain exotic species are aggressive and preclude the establishment of native plants. • Lack of a multilayered canopy and lack of understory vegetation. 5.1.2 Size of Natural Area As the size of a natural area increases so does the stability of the ecosystem. - Also, as the size increases, the probability of the area containing undisturbed habitat increases. Each acre of natural area, rounded to the nearest acre was valued at one tenth of one point. Page 11 February, 199-1 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory 5.1.3 Linkages to Other Natural Areas Many of the Forested Natural Areas in Tigard are small and fragmented, thus they will not support the original natural diversity of plant and animal populations. While corridors between highly fragmented natural areas do not generally support breeding populations of animals that need unfragmented habitat, corridors do allow animals to move between natural areas. They are also enhance low impact recreational use by creating space for hiking paths. The ratings are as follows: 1 High linkage to other natural areas or open spaces present .5 Medium linkage to other natural areas or open spaces possible through undeveloped private lands 0 None linkage to other natural areas not possible 5.1.4 Special Features Special features, such as aesthetics, recreation potential, the presence of a rare or endangered species, and wetlands, received 1 point each, up to a total of 3 points. 5.2 Data Collection The data collection process and ranking was tested and modified before completing the inventory of Tigard's Forested Natural Areas. For each forested natural area and unique forested natural area the following information was compiled: 1. Reference Number. Numbering may skip because some areas that were identified on the aerial photographs as potential natural areas were dropped after site inspection showed that they did not qualify as a natural area. Page 12 February, 199-1 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory 2. Date of Investigation 3. Natural Area Subcategory Forested Natural Area Unique Forested Natural Area 4. Vegetation type Upland Conifer Upland Mix Upland Deciduous Upland Shrub Wetland Conifer Wetland Mix Wetland Deciduous Wetland Shrub 5. Canopy closure Closed Open Scattered 1- 6. Common Tree Species 7. Occurrence of the Plant Association within the City of Tigard Abundant Common Uncommon 8. Estimated Age of the stand based on the dominant tree species 9. Successional stage Very early successional Early successional Mature Late Successional Old Growth 10.Estimated Size in Acres Page 13 Februar1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas lnventur i l.Linkages High: linkage to other natural areas or open space Medium: linkage to other natural areas or open space only through undeveloped property None: linkage to other natural areas not possible 12.RANK NATURAL QUALITY 1 to 5 13.RANK SIZE .1 per acre 14.RANK LINKAGES 0 to 1 15.RANK FEATURES 0 to 3 16 TOTAL RANK 17.SITE VALUES 18.COMPATIBILITY WITH DEVELOPMENT 19.COMMENTS Evidence of disturbance Wildlife observations Management needs Existing uses Other The completed data sheets for each forested natural area are in the Appendix. This data will provide information that can be used to develop management and preservation strategies for Tigard's Forested Natural Areas. If this information is entered into the City of Tigard's geographic information system analysis using ownership, zoning and other information will be possible. Also, comparisons can be made between this information and the data available from the Metro Greenspaces program. Such a comparison will allow a visual representation of changes over time. Page 14 February. 199-3 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 6 FINDINGS Forty Forested and two Unique Natural Areas, units 22 and 25, were identified. These areas were mapped onto 1" = 660' scale digitally produced drawings. Copies of these maps, at a reduced scale, are in the Appendix. Forested and Unique Natural Areas were ranked on four criteria: 1) Natural quality; 2) Size; 3) Linkages; and 4) Special features. These criteria were discussed in Chapter 5. On the basis of the resulting ranking, Forested and Unique Natural Areas were grouped by natural area potential; low, moderate, and high. Natural area potential is the need for an area to be protected based on the physical site characteristics known at the time of the survey. Efforts to protect natural areas should be focused first on areas with higher potential. Prior to protection, additional information about each site may be needed to verify the quality of the site and the specific area of the site that should be protected.5 This is especially true for large sites such as units 20, 21, 29, 32, 45, 48, 49, 59, and 60. These large units are likely to contain areas that should be protected, therefore protection of the entire area may not be necessary. Since the survey was conducted entirely from the public right-of- way, it was not possible from to identify the specific sites within these larger . areas that should be protected. Existing protection for sites was indicated by public ownership, property held in common, dedicated open space, or areas that were designated as wetlands. Of the 42 Forested and Unique Natural Areas identified, 27 have no protection. Of the 25 Forested Natural Areas with moderate or high potential, 11 have no protection, 11 have partial protection and only three have full protection. Many of the areas with no protection are upland forests. Actions should be taken to encourage the protection of Forested and Unique Natural Areas. These actions might include a combination of 1) Regulations, such as requiring a review of the site and approval of site plans by a certified arborist or consulting urban forester prior to development or requiring larger lot sizes; 2) Incentives, such as allowing flexibility in structure setbacks, 5Saturday Academy's Green City Data Teams can often conduct inventory and evaluation of Forested Natural Areas. For more information about the Green City Data Teams contact Saturday Academy. Gail Whitney, Oregon Graduate Institute of Science anti Technology, PO Box 91000, Portland, Oregon 97291-1000, 503/690-1186. Page 15 February. 199 i Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory road widths and grade, 3) Educational efforts, such as providing information to the landowners about how to retain and protect trees during development; and 4) Acquisition. 6.1 Regulation On some of the sites identified, tree retention will not be compatible with the planned development of the land. This is often true where stands of Douglas- fir are converted to medium density residential development. Such development in Douglas-fir stands usually leads to wind throw, breakage and root decay. For such development, tree removal and replanting may be the only means to ensure the continuity of the areas natural character. Where development and tree preservation are not compatible, conservation banking may be an option. To mitigate for the loss of forested areas on a developing site the developer might be required to restore, plant, or donate other lands with equivalent natural values. For all developing sites a certified arboricultural consultant or urban forester should be involved in the site design process and the city should develop guidelines regarding the size, density and species of trees to be retained. Requirements for tree protection after development should also be developed. At a minimum these would include on-site inspections, construction contractor briefings, and a mechanism to compensate future homeowners for death or decline of trees that have been impacted by construction activities. 6.2 Incentives Several of the Forested Natural Areas identified in this survey are slated for development. Developers often can save more trees if provided the opportunity to do so. Subdivisions with larger lots and set-aside areas for trees may encourage the retention of trees without leaving hazardous or damaged trees for new landowners. Flexible standards for road widths and grade can also be used to encourage developers to retain trees. For example, "Skinny" street standards have been adopted by the City of Portland to maintain the residential character on some of its city streets. Tree planting should also be encouraged throughout the community. This is especially important in areas where Oregon white oak and ponderosa pine are part of the landscape. Many of the existing oaks and pines are reaching maturity and the urban environment is accelerating the decline and death of these trees. Incentives should be offered to landowners for tree planting. Incentives might include shared cost programs, coupon programs and others. Page 16 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard.Forested Natural Areas Inventory 6.3 Educational Efforts On public sites with forested or unique natural areas interpretive information about the site and the reasons for preservation should be developed. This information can include signs and brochures. Development of this information can set an example for the rest of the community and might encourage private property owners to consider retaining the trees on their property. Trees that are already preserved will continue to grow, decline and die. At some point in the future some of these trees may become hazardous. Distributing information on tree care and developing incentives and programs to care for trees will help prolong the life of trees in dedicated open spaces. Developing and distributing information on how to recognize hazard trees and developing a set of standards for rating hazard trees will discourage tree removal under the pretense of hazard tree reduction. For Forested Natural Areas that are designated as open space, such as units 15 and 56, educational materials on tree care and hazard tree identification should be developed. These efforts are likely to be effective since these owners may be concerned about the potential loss of trees and about possible tree hazards. 6.4 Acquisition For high areas with high natural area potential, requiring open space set- asides, reducing the density of development, acquisition and the purchase of conservation easements might be considered. Options other than acquisition might include purchase of a conservation easement, or a joint management agreement with the owner of the property. I have recommended this for five units. Three of these are already partially owned by the city or local schools, units 19, 50 and 55. Unit 19 includes part of Woodard Park, unit 50 includes lands owned by Fowler School and unit 55 includes Cook Park. Acquisition for these areas is recommended to buffer existing Forested Natural Areas and to include Forested Natural Areas adjacent to these public lands. The fourth, Unit 22, includes a remnant of an Oregon white oak/Ponderosa pine savanna and is located east of Tigard Street between the Southern Pacific Railroad Tracks and the Oregon Electric Railroad tracks. The fifth, Unit 32, on Ash Creek, is unusual because of the large number of western red cedar in the area and the quality of the creek. For each of these areas, an on-site inspection should be conducted to verify the existing data. Page 17 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory and to identify the specific boundaries of areas that should be acquired or protected by other methods. 6.5 Summary For each Forested Natural Area and Unique Natural Area, Table 6.1, Forested Natural Areas Data Summary, lists the natural area potential, the existing level of protection and the map number showing the location of each area. The summary list is not in rank order, rather each unit is listed by low (rank 2.5 - 4.8), moderate (rank 5.3 - 6), or high (rank 6.4 - 11) natural area potential. Differences in point spread between individual units are often too small to be of value in deciding if one unit is has greater value than another. The total numeric rank listed as Item 16 in the Data Sheets (appendix) should be used only as a guide and not as an absolute means of distinguishing between the relative potential of the Units. Specific recommendations for the development, protection or preservation of each unit is listed in Table 6.2, Forested Natural Areas Recommendations. Page 18 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory i TABLE 6.1. Forested Natural Areas Data Summary NATURAL NATURAL AREA POTENTIAL PROTECTION MAP AREA NOT IN RANK ORDER ## 8 Low None 1 13 Low None 1 15 Low Dedicated open space 1 17 Low None 1 23 Low None 2 25 Low None 2 28 Low None 2 29 Low None 2 30 Low None 2 31 Low None 5 44 Low None 4 46 Low None 4 47 Low None 4 53 Low None 1 58 Low None 3 59A Low None 3 61 Low None 3 1 Moderate None 1 9 Moderate Partialwetland 1 24 Moderate Partial/wetland 2 26 Moderate Partiallwetland 2 48 Moderate None 4 51 Moderate Partial/wetland 4 56 Moderate Dedicated open space 1 59 Moderate None 3 60 Moderate None 1, 3 7 High Partial/wetland 1 18 High Partialwetland 2 19 High Partial/park, wetland 2 20 High None 2 21 High None 2 22 High None 2 27 High None 2 32 High None 5 40 High Wetland, Open space 4 43 High Parkland 4 45 High None 4 49 • High None 4 50 High Partial, school property 4 _ 54 High Dedicated open space 1, 3 55 High Partial, Cook Park 1 57 High Partial 3 Page 19 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.2: Forested Natural Areas Recommendations NATURAL NATURAL AREA ZONING/USE . RECOMMENDATIONS AREA POTENTIAL 1 Moderate Zoned medium Medium density density residential. residential is not Privately held, compatible with owner wishes to preservation of the preserve forested character of this property. Lower density development would allow for retention of individual and groups of trees. 7 High Significant Resource Fanno Creek Hall/Bonita -Bonita Durham. Zoned Open Space, Light Industrial. Riparian area, includes SRI designated wetland 8 Low Zoned light Retention of the single or industrial, groups of Douglas-fir on Privately held,Area this site may not be scheduled for possible without the risk development. of wind throw. A certified arboricultural consultant should be hired to review any tree retention plans prior to start of construction. 9 Moderate Zoned open space and light industrial. Riparian, includes SRI designated wetland 13 Low Zoned low density residential Page 20 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 15 Low Zoned medium Provide owner with density residential. information on tree care, This appears to be a hazard tree identification common area for and preserving and apartment complex improving natural quality 17 Low Zoned medium Provide owner with density residential. information on tree care, This is one of three hazard tree identification stands of Douglas- and preserving and fir in the southwest improving natural quality. part of Tigard Development of this area is not compatible with tree retention. 18 High Significant Resource Provide owners with Fanno Creek information on tree care, Hal/Bonita - Bonita hazard tree identification Durham. Zoned and preserving and Light industrial improving natural quality. and Medium Development of this area density residential may not be compatible Open Space with preservation of natural quality_ 19 High Zoned open space Acquisition of land to the and low density north and west of development. Woodard Park to include Woodard Park the oak/pine savanna may covers a portion of be desirable. Restore the this area, however, park area to native much the remnant vegetation around the oak/pine savanna is oaks and pines. Expand privately held the hiking/biking trail along the creek. 20 High Significant Resource Conduct a more detailed Fanno Creek investigation of this unit Hall/Bonita - Bonita to determine its potential. Durham. Zoned Work with owners to light industrial. develop site plans that Development may retain this areas natural not be compatible quality. Acquisition of,,k with preservation of portions of this area may natural areas. be desirable. Page 21 February- 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard.Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 21 High Zoned light Preservation of individual industrial. or groups of trees may be desirable. 22 High Zoned light If this area proves to be a industrial. remnant of oak/pine savanna, work with the - landowners to preserve and restore it to a natural state. Acquisition may be--- desirable. 23 Low Zoned medium Provide information on density residential. how to preserve and care This area is already for native trees to developed,with landowners. Initiate a some additional native tree planting building ongoing. program to maintain the Much of this area is natural character of the forested urban area. Such planting area. programs are essential to maintaining the original character of an area. 24 Moderate Zoned general Single and group tree commercial and preservation. professional office 25 Low Zoned and Provide owners with developed general information on tree care. commercial. Develop incentives for landowners to retain and preserve individual and groups of high value trees. 26 Moderate Zoned general Much of this area may be commercial wetland and required to be in open space. The southern part of the area could be developed as a natural area devoted to environmental education for the adjacent school Page 22 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 27 High Professional Office Conduct on site inspection to quantify natural quality. Determine options for protection and preservation of oak stands and the riparian/ravine area. 28 Low Professional Office Conduct on site visit to determine if a wetland is present. Preserve selected specimen trees. 29 Low Professional Office, Conduct on site inspection General to determine if small Commercial, Low pockets of high quality density residential natural areas are present. 30 Low Professional Office Preserve individual specimen trees. Require tree preservation plan as a part of initial site planning. 31 Low Low density Preserve individual residential specimen trees, especially along the northern boundary. Require tree preservation plan as a part of initial site planning. 32 High Low density Conduct on site inspection residential to further quantify natural quality and value for preservation. Preservation of area along Ash Creek east of the right-of-way for 74th St may be desired. Acquisition should be considered_ 40 High Significant Resource Link existing hiking Summer Creek biking trail to this area `- Flood Plain and Riparian Forest. Zoned open space Page 23 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 43 High Zoned open space. To improve the quality of This is a part of this area eradicate non- Summer Lake Park native species. Improve the trail system through this forest. Add interpretive signage. 44 Low Zoned medium high This area may have residential potential for a local open space,hiking/biking trail 45 High Zoned medium Preservation of Forested .density residential areas in this area may be limited to ravines. Development at medium density is not compatible with tree preservation. (Despite efforts to save trees in the Hillshire development most of these trees will die or become hazards.) Planting native conifers may be an alternative to preservation of large areas of developable land. Develop and distribute information on planting and care of native conifers. 46 Low Zoned low density residential 47 Low Zoned low density Develop and distribute residential information on developing to retain trees. Low density residential is often compatible with development and can result in the forested urban areas found just to the north of the Hillshire development. 48 Moderate Zoned low and This area may have medium density potential as an expansion residential. Much of the hiking/biking trail of this area appears to have been left as open space. Page 24 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 49 High Zoned low and Development as medium medium density density residential may residential conflict with scenic goals. Lower density development allows more flexibility in retaining trees. 50 High Zoned open space, The natural quality of this public institution area could be improved by removing non-native species. Interpretive signs would add to the value of the site. The site could be developed as an outdoor classroom. Restoration of the Oregon white oak/Ponderosa Pine habitat should be investigated. If the area is not in public ownership, acquisition of the area should be considered. 51 Moderate Significant Resource TigardtTiedeman Fanno Creek Marsh and Floodplain. Zoned low density residential, open space and public institution 53 Low Zoned low density Develop and distribute residential. A information on developing portion of this area to retain trees. Low is currently being density residential is often developed. compatible with development . 54 High Significant Resource Remove non-native Tualatin River species Floodplain West of Cook Park. Zoned low and medium density residential open space Page 25 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard.Forested Natural Areas Inventory • TABLE 6.1: Forested Natural Areas Recommendations, Continued NATURAL NATURAL AREA ZONING/USE RECOMMENDATIONS AREA POTENTIAL 55 High Zoned low density Remove non-native residential open species. Restore native space. Much of this vegetation under the oaks area includes Cook in the picnic area or Park remove the non-native grasses and replace with mulch. Monitor trees for hazard. Replant with native species. Acquisition of lands designated in this unit but outside the Park may be desirable. 56 Moderate Zoned low and Develop and distribute to medium density adjacent landowners residential. This information on area has been set landscaping with native aside as open space. plants, preserving trees, and identifying hazard trees. 57 High Significant Resource. Develop and distribute Ravine 108/113 information on tree Tualatin planting and care, tree Floodplain. Zoned preservation during low, medium and development and medium high restoration of natural density residential areas. and open space. 58 Low Zoned residential Monitor trees for potential under development. to fail. Page 26 February 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory TABLE 6.1: Forested Natural Areas Recommendations, Continued 59 Moderate Zoned low and Preservation of Forested medium residential. areas in this area may be limited to ravines. Development at medium density is not compatible with tree preservation in Douglas-fir stands. 59A Low Zoned low and medium residential 60 Moderate Significant Resource Preservation of Forested Little Bull areas in this area may be Mountain Natural limited. Development at Forest Area. Zoned medium density is not medium density compatible with tree residential. A preservation in Douglas- portion of this area fir stands. is being reviewed for development. 61 Low Zoned medium Preserve selected unique density residential. or high value species. J Page 27 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 7 FORESTED URBAN AREAS AND RIPARIAN AREAS It was beyond the scope of this project to identify all the riparian and forested urban areas, however some of these areas were identified and are shown on the maps in the Appendix. Riparian areas are generally undeveloped or undevelopable areas along creeks. Many of these areas have or are suitable for hiking/biking trails. Several riparian areas were identified on the base map furnished by the City of Tigard. Few of these areas were designated as Forested Natural Areas. Forested urban areas, designated as urban forest on the maps of Tigard are areas that have houses or other developments under what is a closed or nearly closed canopy of trees. See the Appendix for the maps. As with riparian areas only those areas that were identified by the Metro Greenspaces Program as forest or wetland were identified. Forested urban areas are important to the quality of life in Tigard. I recommend taking actions to enhance the care and planting of forested urban areas. Informational materials should be developed that address tree retention on developed properties, tree care and hazard tree identification.6 6The International Society of Arboriculture has a brochure entitled Recognizing Tree Hazards. It is designed for the homeowner and provides a checklist of hazardous tree situations. This brochure may be purchased from the International Society of Arboriculture, PO Box GG, Savoy, Illinois 61874 or call 217/355-9411. Page 29 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 8 NATURAL RESOURCE DOCUMENTS 8.1 Tigard Natural Resource Inventory The descriptions of the open space, scenic and natural resource areas identified as significant in Tigard's Comprehensive Plan were reviewed for consistency with the recommendations made in Chapter 6. 8.1.1 A. Little Bull Mountain Natural Forest Area I identified two sites on Little Bull Mountain to be natural forest areas. These were sites 60, and 61. Site 60, located on the west and south slopes ranked moderate as a moderate to high quality site. Site 61, was ranked as low quality and is on the low south slope. Site 60 is assumed to be identical to the area identified in the Comprehensive Plan as Little Bull Mountain Natural Forest Area. The Comprehensive Plan states that the , "major significance of this area is its visual impact viewed from many vantage points within Tigard. This area is the largest mature stand of coniferous trees within the Tigard active urban planning area, and, therefore, serves as a visual landmark." The area is the site of a proposed 340-unit multifamily development. Mature conifer stands do not usually lend to medium or high density development without clearing all of the trees. Two negative consequences of trying to save individual or small groups of coniferous trees as part of developing in a conifer forest are: 1) the slow decline and death of retained trees and 2) the increase risk of breakage or blow down. Because of this, preserving the visual character of Little Bull Mountain while allowing development at the density proposed is unlikely. Options to preserve the natural quality include replanting with native conifers and setting aside uninterrupted common areas. To reduce the potential for blow down the size and configuration of common areas should be determined after analysis of the slope, aspect, and common wind speeds. Site layout and building size will also affect blow down potential. Page 31 February 1991 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory 8.1.2 B. Summer Creek Floodplain and Riparian Forest Due to its small size this area was not identified in the inventory of natural areas. 8.1.3 C. Krueger Creek This area was not identified. 8.1.4 D. Summer Creek Floodplain and Riparian Forest This area appears to be identical to unit 40. It was ranked as a high quality natural area. 8.1.5 E. TigardJTiedman Fanno Creek Marsh/Floodplain This area was identified as unit 51, an area ranked as having moderate potential as a forested natural area. Its present use is as an educational site. School officials are working with the Wetlands Conservancy to improve the habitat. 8.1.6 F. Tualatin River Floodplain West of Cook Park This area is included as part of unit 54 and was ranked as having high potential as a forested natural area. 8.1.7 G. Fanno Creek Park/Main Street This area was not identified. 8J.8 H. Fanno Creek North of North Dakota This area was not identified. 8.1.9 I. Fanno Creek Hal /Bonita - Bonita/Durham This area was identified as units 18 and 20. This area probably encompasses one of the most diverse habitats in Tigard. Light industrial development of this area will reduce the quality of the area and may not be compatible with preservation of this forested wetland areas. If development proceeds, a more Page 32 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory detailed review of the natural resource should be conducted and findings incorporated into the site design process. Preservation of individual and groups of trees as well as set asides for common areas may be sufficient to preserve much of the upland areas natural qualities. 8.1.10 J. Ravine 108/113 Tualatin Floodplain This area was included in unit 57. To allow development to proceed while protecting the resource I recommend developing and distributing information on tree planting and care, tree preservation during development and restoration of natural areas. 8.1.11M. Summer Creek/Woodward School Fir Grove This area was not identified. 8.1.12 R. Kallstrom Fir Grove This area was not identified. 8.2 Community Development Code Pertaining To Tree Removal Having a tree preservation ordinance that prevents removal of trees except when necessary for development will help the City of Tigard maintain visual quality, wildlife benefits, and the overall forested character of Tigard The proposed code revisions should help clarify the applicability of the regulations and provide a more appropriate set of tree removal criteria. However I have several specific comments as follows: Section 18.150.020 Permit Required Applicability A.6 The definition of a tree should serve the community well, however the height of measurement is usually at 4.5 feet from the ground. While there is no uniform definition of a tree, the Checklist of United States Trees defines a tree as a woody plant having one erect perennial stem or trunk at least 3 inches in diameter at 4.5 feet, a Page 33 February. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory more or less definitely formed crown of foliage, and a height of at least 13 feet.7 D.7. Tree removal on a lot of less than 3 acres or within 200 feet of the house on a lot of three acres or more could have a substantial effect on visual quality, wildlife habitat, and other benefits derived from the urban forest. For example, if all trees within 200 feet of a house centered on a lot of 3 acres are removed more than 90% of the lot will have been cleared. Section 18.150.060 Illegal Tree Removal An alternative to the penalty for illegal tree removal would be to levy a fine equal to the value of the tree. Tree values can be established by a certified arborist using methods described in the 1992 International Society of Arboriculture publication Guide for Plant Appraisal. Funds could then be used to fund programs, including replanting, that enhance Tigard's urban forest. Removal of trees on public property without a permit should carry double or treble damage penalties. My general comments pertain to 1) tree planting and 2) the tree permit process. While the ordinance does not address tree removal from developed residential property this issue may gain greater significance as trees begin to decline and die in Tigard's forested urban areas. It would be appropriate for the City of Tigard to implement actions to encourage the planting of appropriate tree species on private and public properties throughout the City. Initially the city might publish a list of appropriate tree species for various areas of Tigard and planting instructions. In some instances it may be appropriate for the City to take a more active role in tree planting. For example Tigard has a large area that once was Oregon white oak/ponderosa pine savanna. Since Oregon white oak is not readily available to homeowners it may be helpful for the City to contract with a nursery to grow Oregon white oak for purchase by Tigard's residents. Oak seedlings can be successfully established in the landscape if they are properly planted and protected. The use of protective tree shelters is described in the Appendix. For information on what the City of Forest Grove is doing to encourage tree planting you may wish to contact Bruce Copenhagen at 503/359-3200. Tree 7Elbert L. Little Jr. 1978 Checklist of United States Trees (Native and Naturalized) Agriculture Handbook No. 541 Forest Service United States Department of Agriculture. Page 34 February. 199-1 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventors planting may conflict with solar access goals stated in the Comprehensive Plan. As a part of the tree removal permit process developers should be required to show 1) Which trees will be retained and 2) How they plan to protect those trees during development. However, requirements to retain trees should be reasonable. It is not reasonable to require developers to retain trees that will eventually decline and die from construction impacts that could not be avoided. Nor is it prudent to require developers, developing lots in a Douglas-fir forest to retain residual Douglas-fir trees that have a high potential for wind throw or breakage. In these cases it may be more prudent to require planting trees. Olympia, Washington's Tree Preservation Ordinance is included in the Appendix. Although complex, this ordinance uses a combination of tree size and density to guide tree retention and planting plans. This combination offers flexibility and often results in sites that are appropriately landscaped. For more information on this ordinance contact Joe Roush, Olympia City Forester at 206-753-8046. Flexibility in site design is often used as a means to preserve trees and other natural features of a property. Increasing density in one area of the site may - allow trees to be retained on another area of the site. Decreasing lot sizes or building setbacks may be enough to allow more trees to be saved. Standards for road widths and grade may need to be changed to allow for tree retention. The City of Portland adopted "skinny street" standards to allow for tree retention and planting areas. For more information on the "skinny street" standards contact Alex Winstra, Portland's City Forester at 503/823-4489. A consulting urban forester or certified arborist familiar with development plans should review the site plans prior to construction and make recommendations for tree removal and retention. Page 35 Februarv. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises Cite of Tigard,Forested Natural Areas Inventory r Page 36 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory CHAPTER 9 SOURCES OF ASSISTANCE There are several methods and levels of funding and technical assistance available to the City of Tigard to finance tree preservation, maintenance and tree planting projects. Some of these methods are discussed in this chapter. This discussion is not intended to provide a comprehensive list of all potential sources of assistance, rather I describe several specific programs and provide references where additional information may be obtained. 9.1 Sources of Financial Assistance 9.1.1 Oregon Department of Forestry The Oregon Department of Forestry administers grant programs for tree planting and community urban forestry projects. In 1992, the department's Urban and Community Forestry Assistance Grants, and the Small Business Administration Tree Planting Grants provided over $200,000 in Federal matching funds to communities. Grant applications vary annually. For more information contact Paul Ries, Oregon Department of Forestry, Urban Forestry Coordinator, 2600 State Street, Salem, OR 97310, 945-7391. 9.1.2 Land And Water Conservation Trust Fund Federal Land & Water Conservation Funds are available each year for the acquisition and development of outdoor recreation facilities. The fund is administered by the State Parks and Recreation Department. It is a large grant designed for the acquisition of park lands, which provides the community with matching in-kind funding$. Grant funds are available for up to 50 percent of the total project cost. Cities, counties, and park and recreation districts are eligible agencies. The type of facilities that are eligible include ballfields, picnic facilities, boating facilities and playgrounds. Support facilities such as restrooms, parking lots, landscaping, and maintenance of buildings. 8 Matching"in-kind" means that the matching value contributed by the community need not be in dollars. The community may contribute donated land, equipment, and volunteer labor, and these contributions will count toward their equivalent dollar amount. Page 37 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas inventory Applications must be submitted to the State Parks and Recreation Department by January 1 of each year. The next grant cycle for this program will begin about October 1993. Applications should be sent to Oregon State Parks and Recreation Department, Grant Section, 525 Trade Street SE, Salem OR 97310. 9.L3 Charitable Foundations Many foundations will fund tree-related projects_ Each foundation has specific guidelines and dates for grant applications. Many require a letter of inquiry prior to submission of a grant request_ A comprehensive list of foundations providing grants in Oregon can be found in the Guide to Oregon Foundations. For additional information on charitable foundations refer to: Guide to Oregon Foundations, United Way of the Columbia Willamette, 718 West Burnside, Portland, Oregon 97209 (226-9131); or The Foundation Center, 312 Sutter Street Rm. 312, San Francisco, California 94108, (415) 397- 0902. The Foundation Center also has a Rural Development Information Library which can be contacted at, 1-800-633-7701. 9.L4 Oregon Youth Conservation Corps (OYCC) The Oregon Youth Conservation Corps program consists of grants of labor and partial capital financing. OYCC generally provides grants for conservation or environmental projects proposed by non-profit organizations. The OYCC funds are distributed on an equal basis to each county. To apply, contact Ann Alexander, 225 W. Olive Street, Newport, OR 97365. TEL: 265-6611, FAX: 265-5466. 9.1.5 Intermodal Surface Transportation Efficiency Act The 1991 ISTEA provides matching funds for transportation enhancement projects. This can include landscaping within the public right-of-way. Projects should complement or enhance the Oregon Department of Transportation Visual Resource Management Program. Landscaping projects that are a part of a existing construction project Page 38 February, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventor% have priority. Reimbursement is 80/20 Federal to Local match. For more information contact Rick Sjolander, ODOT Region 2, Salem OR 97310 378-2626. 9.1.6 Oregon State Marine Board The State Marine Board program is a grant program limited to riverside facility improvement only. To contact the Marine Board, call Dave Obern, Facilities Manager, at 378- 8587. 9.1.7 Other Funding Sources The American Forests organisation provides funds for tree planting projects through the Global ReLeaf program. These projects can be on public or private properties. For more information, contact: American Forests, Global ReLeaf, 1516 P Street NW, PO. Box 2000, Washington DC. 20013, (202) 667-3300. The International Society of Arboriculture funds research projects that have applied use in the field of arboriculture. These have included such projects that include tree planting as part of the research and projects that involve public information and education. For more information contact: International Society of Arboriculture Research Trust, PO Box GG, Savoy, IL, 61874-9902. The State Parks and Recreation Department has information about the following funding programs: County Campground Grant Program; Marine Facility Grant Program; Maintenance Assistance Program; Oregon Community Development Block Grant Program; County Fairs and Special Events. Contact the State Parks and Recreation Department at Oregon State Parks and Recreation Department, Grant Section, 525 Trade Street SE, Salem OR 97310. Page 39 Februarc199-1 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory The US Environmental Protection Agency has a grant program Pollution Prevention Incentive for States. This program was authorized under the Pollution Prevention Act of 1990. Local governments are not eligible but USEPA Region 10 strongly encourages communities to work directly with the State of Oregon in developing a state proposal that includes them as participants. Potential projects might include tree plantings to mitigate pollution. For more information Robin Meeker, Pollution Prevention Program, USEPA Region 10 1200 6th Ave. MD 142, Seattle WA 98141. 206-553-8579. Also contact Paul Ries, Oregon Department of Forestry, Urban Forestry Coordinator, 945-7391. 9.2 Sources of Technical Assistance Many aspects of tree preservation programs require technical skills. Potential sources of technical assistance include the Oregon Department of Forestry, the USDA. Forest Service, utility companies, and private businesses. Below is a list of potential contacts for technical assistance. American Forests Oregon Department of Forestry 1516 P Street NW Urban and Community Forestry Washington DC 20005 Assistance Program 1/800-368-5748 Paul Ries 945-7391 International Society of Plant Amnesty Arboriculture 906 NW 87th St Pacific Northwest Chapter Seattle, WA 98117 Arborist Certification Program 206/783-9813 PO Box 65054 Seattle, WA 98155 206/365-3901 National Arbor Day Foundation 211 North 12th, Suite 501 Lincoln, Nebraska 68508 402/474-5655 Page 40 Februar . 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory APPENDIX MAPS APPENDIX Draft January, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory APPENDIX CONTENTS Appendix A. Maps Appendix B. Information on Unit#1 Appendix C. 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Mill g` ed High H2. \, ', .. , , �:oh: � ., �� y DR I I l I I' NERD , 31ue Ivoderate !\ V �; 8< \i��,��,��a�,�►�,---ir mia mm II Green Low v�,v � � ..014,4 ItOwA I 41,4) North �V \�1 �� t �� «� '�t3 OSI '�' R4 d 1`1 I RD \ \\\\ :, ', „--.. \`\ R]�iutinti F��i �^ 4:-10'41.141:, �yF 7 �n 4t-f-S-kil R �f �i 1 � Ati , � �//1 ij 'i t4�,,�� `°0,�61 t7 1/4 mite HitiK • \� '�= v' t vv repared by Mike Reichenboch February �"'' Arboreal Enterprises 1994 SEE MAP FIVE o {pgA6 1 1 1 1 1 1 I I -T r mo L, n iiiii = J _ v r i • NA - g 27'26 �z� ■■ Mr =2r_%+5 I COEUR ri-r- 7 a 5 Z.r, ■ "TIT �HEs K 3 . .,11■i'■ ��//// �IIII�t ■ ■ __.._. _ ■■■■� JII�>r 2 - MON ENTER 11■11111 . ill" 1�� WW1 4111111 :lima 111® � alt —r1�'Wm ►� 36 - --��r7 ■ 111111:1 Inns .1 i1 it■1��Ii 1111111 ` nQ 5T �., nAPLELEA' iii --{{ 1 I ■ 1■�, n. l�� I!-! - I!fii MI P_r 11 - I I i I i t sl I 1111 n Mint 1111 i 11111 ' 1�+'i i ii MAlir •Pik ma s ■11118 "a ' _-I-- :1© 1111p `1111 ! ■IIr III , VIVirP N_ 1m . 11l■1� m -� ^Tr�f f ■■�©��1i�' ,� B,.,31,� RIM ,ilWL KS'■ � ,aiyD�� 1 . ��i11 /.. ..: , ,SIR EI I I N 1 I I �I PP iii■■ _ �, -4•• , iii^, r..� ,�. , � 1�' `� mom�� ■ ..��w�■��■.�■��IUiWdIi ■■t ■■■ 1■�� / mo � Ii! fI 11/� [raw� V F 'L1 lir -,,, 5, = lu l •jkLI.J uMni'U m■ILII!I1i II " N -� Ih sT �elc1 Iw�/ aim ., s 111/ I II o—. hiej ■� �� ' ■. •.3 �� ,11 : ��o■. ■i a ■RC® 2IL:1 ip, I�. �1,. y as x.11IE■►1■ ► " ,JJiJ: III la WPM ra ' t' I '`_;jip p ` , l I1. .■, , DVVALL S7� aV ci 3, RNNI gplik • C��N QN i 5f o i/3ee■X1111111► 44*��: �_�■ 'vie*'j AYj i ,4`. -11111111111111111'. al ill 111 1:a rg I 111 L.,_---- �ERINEP.N . . #40*.tg4 , 4 , kAls soh 4,1'; ,.-.- a-\N\Nzittli -11 � Mi LI '141111111111,. , 47.:,,,,�� j•740040,4„. ,"f .�` Cpw •~ ',1'1 -16y1 11 44', 1:::14`x;t-r LL Sri:►► ♦� - �.: 7A.NlitC" :44.4*‘ •4: NB%,.._ 0 I 1 1, lin :::_ ._ c it iip 4 RrPar.a. `:��` *0-s;' �wi.,, ' ''ckF ., -14040.w.'1 �,`R% ♦ . ��kfR ....01 .1 . ,_ \ CITY 0{ I IVA1\D WM r 14♦ ♦ ♦ 1 •• . f 1 - ,.. `�.••„,.4t ,,•` � , lig ( HAY PTON� 1� •rffinitlIE J� _ FOE-ST E L �P� � ��• �,i fi0„. ; A(::::; - NATO SAL A --_AS '�_MI �� `� ® �� Noir � - / `W : � ��:�� ;� K� MAP TWO • an d _ ti.-,#‘....--4,,, 46, %IV - ., / - r ■■�11��, �� .��IP♦ice:�♦•�;A • s , ,, 1 f ■ _•■•■■ NI. �' Color Pa .ntla fl■ i ,I• � I/ .� #♦ .R, l , . ..4. _�� , �, Red High iii •��•*��•40 44#lob a �� = . -- ' ;,;411 ' N� ■ 1. �•�•♦`� •�♦i� ©� �. :: p ■ �� vBlue 1 Moderate �',a • o� ��■111►�E :�� d �>r moom� i�ii■■■■■■■�■� Green Law - El p.-.. 6•04$ #001i7 • t I I 1 i1i1 . -_ i iiiienii �,�� i�� a ,pa , , i �imi m. ��, North �`®� lip 1'��11111 � w'►�`��,� , `. '� s. -�.®.� A o 1/4 mile •�111111�Ibri ` � � .rC :CENTER ,� giv5111 VIM ; ir.**\ ^•®s'i■■'■■■'��.�� '�'” ' C :,\:..,::,,i.,:,,,, ° M11111111111:—I''''' �.� Prepared by Mike Reichent'och February Prboreel by ri��■1 't•/�� ,�,■�a1'.� indium Al � �_�� t P ses — 1994 n o _ I� I`�{TI��1 �I 'r.' I l l l 1:&'% I I \a co ' - , ■ a a�I U,bo., i-0,..t SEE MAP ONE SEE MAP FOUR fvY \ /MIIMMW* i1� 412ex �� o_ toG(1( Ettlllllllli 1.1111 — 1 •OSHA X .• iv 4 `��. I■ �� SIN:IS Mrs '\ �. ,.�::'�\\\\ i■ �.■O,■■ �E - ■:..�� '�� HJ 3 TiG3®, me 1#44ii , . ��--■, , , J • • �� 102 ■DF \ misevalinm -->, dm � ��.�� .•x40. -�-iv q�: 6 I --�g F, olio n ir `' ��L -� ALPINE .J- Php : JMu afila e .IN __ VIEu .. IEY �,� SIM■■■�'� - II= ;' TrigiiiiiWk Iii. . � ■■■■ ■S�i■■■ 1M— lel eon'was l- , OM�r 7■ ;tis.# 4tok r .it - W a ■ -iiir .\\i —L ' 1 .. .: �.� r• � ��, �, BIRDW x a . �i��■�i■ R •' ■ e�� ■■� ♦ � ` \ �B�R�U�Dh I I I DR ' G ©••t�,,, a4 in mmo _� , ,�'1 �, • -� =,mill _ a eigjo.mil mos �. !oil' �■■ ��— ]] I I 1 [ 1 ��1�� ' � i■. guar*.♦ ♦is a�1� IIIL ■�■■ 1y,y MP�� % _ a11 \I I I I I I 1 0,14. "�1�1 ■M M•alq a& i1 Wit■ ■ ■�I ; *� _:.• R�-�R .y � _'m• „I iltuYtli"I'� Lib.' , 1i• 1 , .•.4 .. �\\Q :14 �'� RDt - L •■■ ■ mai■■isLS iq 4 A A��NE . . \ '�� / , 8 \\ Ma■iP� T' IPA 11111--la N'''" 0 li II 1 etssit: 1E1 Mmilli4 ' \\N ..1., .A ' ,. \ x ‘,.,:„ Iftistiseak7i 4agketA 4.084,1111 Ill'\:- Mit:11L - ‘\ , /91 detr �g1 ` \ liktLe' �` `�� ,gyp •� ��. 1 --��u..u..-mil 13■��are ■pili S 11�wulow If \41iglli li.a\ �.- 40 4111„ ♦%:•• 0# ,�q�♦•` 11 0 dwasb •��♦p■an nil, i 00 \ x 111i.� ♦ 1♦ ♦ ♦ \ LI cc L L I P 0,67.7.1 .0646;$1. ♦ 1 • \\�� `© �■e�E►A♦♦♦11 ♦e•i \\ •�IIn rel •� ♦♦� ��•ill* ♦'�� a L a :::: s c> taterZ ■■ ■ 0 ic\� i♦a►♦1♦.1♦♦ a \ , rrro • ♦ ti liQEez.711_ . `� ♦ '♦ �t�p- • iiiL r ' 1 O ♦'At111 '111 111 111 .•• ,, . Q- ai r♦�' 0`11 II0 O♦ 61 1 .y' .r *AoumI n ® e ♦ Q� � � �� ,.A��7..0 ��— 1 111 111 i�� err. ® 0® �� NOM EU. tgr!•> Ttalosit ♦�/. °" a i6;�`�` �' o7 a1%Z oat IH " lu 5 ® ♦ -- ■ 17 16 L" �I /� I �� `-- .--��`Il..-`�R Itl Ila ul In � j �� {� trim •- RD I ini :n�r:All IP 111 IU . c VI 4 -�- = . Ila ni ill 1 v•0 , W o�'v�W III \ W- i i♦ 10 m ill 1 :t • = W S. BARRING~ a .- . \ \\ s� - 11.®\tttl t;.��:♦F.\��- l■ 111 I - C/) CITY OF TIGARD '■ \ : 41 �._�, - 1.. 111IMF W t ; v\ :::!C j1/e 1�C �' IN �■. ''' �: � � - fit-de nl Ii � .. . •-' worn�/�n Il � V �e.��a .::�� 1111g11ur n" �♦�iii �� '♦�E�� {t BEI \ \ ■. /�� Ill�v---n 11 -SII .II ,,..„0 ;1� L 1 l�AT �A AEAS ' _-==� —= 111 3 - U � � y y e • ♦� IIIIBMIIII \ A � "I 474,4 •O4 `I . �ltl""tINL11T N ill ■ 16E3's:illlllin -c 111 �. 1�'--at,�•• 1A1 9 `�OCk'I I t LN. \IAP THREE `\ Y = =--Wass se. -■ ��- _M\J R 111111111111RV�i Z. 7 p 11 1.-:.'n••8.{ Ti E MIN \ :,Ra a :■ �� ; `'. Color Potential \\� " - �I�' IIU31t000t. FRE ( �• li.‘ Is fed High A> imp. _ ■ILII ® I = (1c�1r:(nnl• - ��;�v� �� t■311■1■ . 'fit" Blue Moderate ;\�\\` 0711 :111,...illi �.. = !�� Green Low . �� y©.gli b� North & . N. •0111® � ��: ��Uuuw: lit , kir ■ la ® \\ �, �� 1111►�%d. I (5 •� r�>ji(. 0 i�4 mile \\ Q �lErlllllll}. 11110111,,,` In4 l ig\di :R Prepared b Mike Reichenboch rebruor y \\ \\ ]} t}4 [ - \ \N' 1i1 p .. \\\\.' . I. \l �, f�l l��li A. ,� ■M '..\ , pitai 'R4 DR P Y Y �. Arboreal Enterprises 1994 �,' - IUttl►♦ v� v Q��f _ it �� ' < Cab ivuii■ - ,,,1-- � �v i ■.�'v J__ Lk Ibs,..r.m .. d.,, L to B�:1... kms �� ' ‘,:\''\'‘:� i6� s. vvv \ � ■ ■ ■E0■[�► \ \ \ �� ` . \� \ I �. PUE��11 R?f1tr a F. 39f8 `\`. \\i . L ■■_ V YEIR RD ■L�tQ�iO�tl� 281�� • 0 ��®6� 0♦ KOLL T \\\ *A PII ��■■■■■■■■1■ M■■ _ �� t..' c0 271 26 �1►�■ ■//I■tV�4111 ♦ +�♦- ��?�All ■1111/��/l euswEs L-, mein sura f1z ■ ■■l.mil ry • " , it ■■li�!1w �� I` 411Ik CENTER ■/I1111ta' ■ v Ri //t. :a j► r - 0ep ft„ � ION_ wirl„,, , CITY OF TIGARD g i■©to.a�, Ir. �nf�a*siui �tpli�l — FI �o .� .�43 B� L� V L'Li11■■iI"NATO SAE AREAS t t,<< 1S �,• •4 '`i. • j11Efi?!1 . 11111114,•• � l►►P. t%�� ,• ,��`►�o�t v vim , ` •/„.1 __`` \\ .,p� i► 'o,. ', xis '^ o r Y■■ ■'�f •ya �'I .�. Q:�I ,�' � acv rAW► `II - I�II�, CSV�■ p SPRING OOD ■l • iO .- w'�, ♦ II1;64i:4A:tip,MAP FOUR �iIsr .. . ... �. - .�� y�,��. l..TEAL n�" .��l� '�� 1� em i +a i s00 II. P k 101 Atil i r a. ,� Calor Potential �' ' ' 2q2 cc;I 111/1 ►0■ •°.1■ \ m s�,j?'3♦ASII>r+tn7■©■ cc; u111►t ..- - :-.06e'•:. : 0 e ■:i.�►. tet: ■■■■■■■■■■ �_ • ■■ handRed High ,, llns,►4 40 ii l ANTONDRi�� ankm rai ■►• ti- _� s. : 4a r`17:114.111/T►�r�Fir LIE NI" ■112 ■y .j 171 ' /© -11U bc— Fores-rBiue vioderate ,•. � ��s. •■■1• ■ f■_ .�� `` -'� ., � �r111■�r111�' ! � 1:■,� DA • �A alb �1. rt•�::i t•�� Low �c •„' ..,&,..7-11„,4:4w • sa:1■ 11■.0 , g „1]„i ■ 1111 h8 ■ �i 15 �tGreen LoW • i /L•/ 11111111 111 I g EDD,D, - _IIICC�+ 91'1/■ ■■■■■ ■ ■■■Ill■ + ' 1 Northmi. •a■ © ■ afz©.1 �•■ll■lt! Ly. ■�d \:, \ � \ .iPSa 6111111511Nt ■1�■■►4ss\G -iim a L, d :M Er.i'i' - NAE ft ■i. �■ �V\;A is ■ " ■=mu11 4 mile \ ■ ��. � �, . .s • � >d ■dt■i■ w vvvv �■, 1! iu I � Prepared by Mike Reichenbach Februarytlll� ^6ii� �� mi. �1. . ■■■■_■ mats,t� ' ♦ L A boreal Enfer rises 199 ��\\ A •rb•'u111111t10/„ i.< l�fs+� *441ll 11 II /I♦ iN �� .g a Flo1 �� sies“SE ■■L■ ■■ P �� ■�.,, � .., � .• � ♦ /��ft�4^;!� �! �'.. 111 ��:�Y•7itt 1�1� �� /�1�3��o�►C \, .q 111.O 1111/‘s`,��'016 u2 EMI Xi'��ZttwiiinV �ifin u1tl�I� C"a�i .. at. •� \ - �^ 111671 ��r ��'06 w Maria �' Fn R CREST �; �I . • \\'` • :� 1111; ► QfJ �� w 4.. = ■�4111 l'...7.*.c .. �* -4 ,�\ CD �� ,� aim CLre9aJiinlmria I o■ min w �.■■■ 1 .It• ¢ u' �iI11Ili1�U ■■■R! 11141113143111111....71�11R '� v rie R,p4,•o , � �IIIII, I,.ri�r_ ti 1- -- ,,..',‘,...,\\*.,,,, ,...., � �1■ Cams �� — �� e� �L•�fiL"I \ �. 32 33\ 34 c• ail ■ ■■■■1♦ ■nlifiL�■1 �9' Jif �� 7 ts is , ie 146.0 ALs •1 moNi1■ t �v 1■13■I■ \�\ \\�\ \\1� \ 1►� ' '-`- .;`A_ \--s'''\‘'" v 5 :a' as kAa ,11 11g■■■rrp T■■■■■■■■I Fi *FA r��mala melee.. gi. =• ••s, 2 ERINE \ � \ \\ \ \\ � \ , wIi a Ilig 11.1 will (,�.■■■11■■ ■ ! ; 3 - \\ \\�� \`\\� t:,\ \ 44_ f, ■ 'eiL la LeiN 1\0, 1■ ` T .. !■1! ■ \ \ \\` ` \�\ LI r. .1 s,:lit L el : ._'aqua■�Iw al tidal&s 1 1■■ ■_,w a.c'" r 1 ° .\\\� \\ \\ _ �� o 1► t■ aRza1 �■ ��37 .ali■� r. ■► ■■� •w ■r� 111 ■ 6�C. �- ■m ,,\\\\• .. • �•� f;E 1 '�� wNr . . ■ . ■ �e�', .Inrci''Z s" W\\ \ \' ,� !!►� It! BLVD ■� I � �n W err ■■_F anronmer, 4, 1 � el ■III 9i +,. :. +Ur,1 : �� '✓ Q.pa�,a ■• viti1 ! ' 1 rui i..111 .�. tel!©esA/► , 1 . � m, �,�,• _' n C<:• . \ ■ ■11111►�/ ve ,02 10 A ill 1J j• ■ ■■ *4..elft�� ♦ ta7, ®iIC■7,� 240 ■ ■ . . i gra- mi Ilk\- NAM .� 'ail �g %. �I■lila ll 11°5 �/ .`� _ % t . ll QI®ill ` \U 4... , . # - \:,., ,, . 411 ter . ■ z 1. a1. �Rt. 1 �� ♦ v •l 11�■ ■■�t�,*. ■■ I:t9�J� I IIa�l�� T ��. !,'�J ,��L,� �� i� ,�$CHOLE$ `�� Iii,\. `iigoo \\J: _ �,;\,11 l` L. ■:■11 : ,�I'' � ::1■I,1111 . \ � R�� i:1�1► � ' sA�• - I 144- ir \ __,‘ \\\Himammai \\ . , ■ i ,_ may` ��■��11111 11 II ��Ih� Rlitil > efj� ��i'e a�:ice ��46..e � \e ; ,‘ s \\ \\ ;`v '"/mill■■■■ !d 3 ' T ■'1��III,I, 'i♦�' ��. 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SEE vIAP TWO APPENDIX INFORMATION - UNIT #1 APPENDIX Draft January. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard.Forested Natural Areas Inventory Unit#1, Field survey of a 3.96 acre portion, taken Friday, October 29, 1993. List of plants found during field inspection Friday, October 29, 1993 NATIVE TREES vine maple Acer circinatum big leaf maple Acer macrophyllum alder Alnus sp. Hazelnut Corylus sp. Oregon white ash Fraxinus latifolia cottonwood Populus sp. cherry Prunus sp. Douglas-fir Psuedotsuga menziesii cascara Rhamnus purshiana Western yew Taxus brevifolia Western red cedar Thuja plicata NATIVE NON- WOODY PLANTS tall Oregon grape Berberis aquifolium ocean spray Holodicus discolor sword fern Polystichum sp. wild rose Rosa sp. thimbleberry Rubus parviflorus trailing Oregon Rubus sp. blackberry trillium Trillium sp. NON-NATIVE PLANTS hawthorne Crateagus sp. * geranium Geranium robertianum * English ivy Helix sp. holly Ilex sp. * English laurel Prunus lauracus * Himalaya blackberry Rubus discolor The four non-native plants marked with an asterisk comprise over 90% of the ground cover on this wooded property. To improve the natural quality of this area these exotic species should be killed. This will make room for native ground covers. Seeding or transplanting natives may be necessary. The approximate age of this stand of trees based on core samples of one Douglas-fir and one Big Leaf Maple is 60 years. Appendix B, Page 1 Prepared by Mike Reichenbach of Arboreal Enterprises January 16. 1994 Field data collected on Friday,October 29,1993 Species <12" 12"to 24" >24" TOTAL T.-1 big leaf maple Acer macrophyllum 1 3 0 4 alder Alnus sp. 5 1 0 6 holly Ilex sp. 1 0 0 1 T.-2 big leaf maple Acer macrophyllum 1 1 0 2 alder Alnus sp. 0 1 0 1 Hazelnut Corylus sp. I 0 0 1 cottonwood Populus sp. 0 1 0 1 Douglas-fir Psuedotsuga menziesii 2 2 0 4 T.-3 big leaf maple Acer macrophyllum 0 1 1 2 T.-4 Oregon white ash Fraxinus latifolia 1 0 0 1 cherry Prunus sp. 2 0 0 2 Douglas-fir Psuedotsuga menziesii 8 5 0 13 cascara Rhamnus purshiana 1 0 0 1 T.-5 cottonwood Populus sp. 0 0 1 1 cherry Prunus sp. 3 0 0 3 �- Douglas-fir Psuedotsuga menziesii 7 2 0 9 33 17 2 52 Total number of trees observed over five,12 foot wide transects,running east and west, spaced approximately 60'from the north end of the property and 120 feet apart. big leaf maple Acer macrophyllum 2 5 1 8 alder Alnus sp. 5 2 0 7 Hazelnut Corylus sp. 1 0 0 1 Oregon white ash Fraxinus latifolia I 0 0 1 holly Ilex sp. I 0 0 1 cottonwood Pope las sp. 0 1 1 2 cherry Prunus sp. 5 0 0 5 Douglas-fir Psuedotsuga menziesii 17 9 0 26 cascara Rhamnus purshiana 1 0 0 1 33 17 2 52 Estimated number of trees for entire property big leaf maple Acer macrophyllum 20 50 10 80 15% alder Alnus sp. 50 20 0 70 13% Hazelnut Corylus sp. 10 0 0 10 2% Oregon white ash Fraxinus latifolia 10 0 0 10 2% holly Ilex sp. I0 0 0 10 2% cottonwood Populus sp. 0 10 10 20 4% cherry Prunus sp. 50 0 0 50 10% Douglas-fir Psuedotsuga menziesii 170 90 0 260 50% cascara Rharnnuspurshiana 10 0 0 10 2% 330 170 20 520 100% Appendix B, Page 2 Prepared by Mike Reichenbach of Arboreal Enterprises January 16, 1994 APPENDIX DATA SHEETS APPENDIX Draft January, 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory City of Tigard Forest Areas Inventory Page 1 Data Sheet I NATURAL AREA 1 2 DATE of evaluation 11/22/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir, Cottonwood, Cherry, Oregon white ash OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ,ESTIMATED AGE 60 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early to mid successional 10 ESTIMATED SIZE 6 11 LINKAGES high, low, none _ none 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 0.6 RANK LINKAGES 14 Oto 1 _ 0 RANK FEATURES 15 Oto3 2 16 TOTAL RANK 5.6 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 1 17 SITE VALUES Open space primarily benefiting the surrounding subdivision. The area is currently being used for passive recreation by adjacent residents and for some an extension of their backyards. 18 COMPATIBILITY WITH Development of the area at the density of surrounding DEVELOPMENT development would require removal of nearly all trees, reduce density,preserve high value trees, set aside areas for open space 19 COMMENTS It is probable that this area is the result of old field evidence of disturbance succession. Several non-native species are present, these wildlife observations include English ivy,Himalaya Black Berry, and Robert's management needs geranium. Nearly 90%of the herbaceous layer is non- existing uses native species. Non-natives should be eradicated_ other Continued efforts to eradicate non-natives will be needed if native species are to become established. This site exhibits a diversity of tree species that is not found on many other sites. Add one point for special features. Add one point for diversity of species. Eleven species of trees, including western yew, are found on the site. The quality of the site is moderate but would improve with the removal of the non-native species. This area is currently used for passive recreation. The majority of this area is owned by one person who would like to see the property acquired by the city and preserved in a natural state. The western portion of the wooded area is owned by several landowners. If this area is to be retained in a forested condition the landowners on the west should receive information about proper tree care and restoring native ecosystems. Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 7 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer/riparian deciduous CANOPY CLOSURE 5 closed open scattered open COMMON TREE pouglas-fir, Oregon white ash, red alder, cottonwood, western red 6 SPECIES cedar OCCURRENCE OF HABITAT 7 abundant • common uncommon abundant 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional to mature 10 ESTIMATED SIZE 30 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre 3 RANK LINKAGES 14 Oto 1 1 RANK FEATURES 15 Oto3 1 16 TOTAL RANh 7 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 7 17 SITE VALUES wildlife habitat, wetland area 18 COMPATIBILITY WITH limited due to riparian and wetland nature of area DEVELOPMENT 19 COMMENTS edge disturbed by farming practices and development. evidence of disturbance wildlife observations Removal of exotic species would improve the natural management needs character of the area. existing uses other Alder is the dominant tree south of Durham This unit includes all or portions of SRI Wetlands G8, G9, G10, G11, G12, G13, G14. Add one point for special features. Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 8 2 DATE of evaluation 1/15/94 CATEGORY OF 3 NATURAL AREA Forested,Unique Forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE 60 to 80 yrs SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE _ 8 11 LINKAGES high, low, none none 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 0.8 RANK LINKAGES 14 0 to 1 0 RANK FEATURES 15 Oto3 1 16 TOTAL RANK 4.8 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 8 17 SITE VALUES wildlife habitat,open space 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS This unit includes a stand of mature Douglas-fir with evidence of disturbance what appears to be a well developed and diverse wildlife observations understory_ There appears to be little disturbance. management needs existing uses Add one point for quality and uncommon size for this area other of Tigard. Prepared by Mike Reichenbach Appendix C February. 199-1 City of Tigard Forest Areas Inventory Page 1 Data Sheet I NATURAL AREA 9 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mixed CANOPY CLOSURE 5 closed open scattered closed on the west of 72nd St and open on the east 6 COMMON TREE SPECIES alder, cottonwood and Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon abundant 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 4 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY I to 5 3 13 RANK SIZE .1/acre 0.4 RANK LINKAGES 14 O to l 1 RANK FEATURES 15 Oto3 1 16 TOTAL RANK 5.4 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 9 17 SITE VALUES wildlife habitat, open space 18 COMPATIBILITY WITH riparian area may make development difficult DEVELOPMENT 19 COMMENTS A red tailed hawk was observed perched in one of the evidence of disturbance dead cottonwoods east of 72nd St. wildlife observations management needs Removal of the Himalayan Blackberry and planting existing uses native vegetation would improve the natural condition of other the site. Prepared by Mike Reichenbach Appendix C February, 1993 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 13 2 DATE of evaluation 11/22/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer • upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous/upland mix CANOPY CLOSURE 5 closed open scattered open COMMON TREE 6 SPECIES bigleaf maple, douglas-fir, holly OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE 40-60yrs SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional 10 ESTIMATED SIZE 4 11 LINKAGES high, low, none low 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre _ 0.4 RANK LINKAGES 14 0 to 1 0.5 RANK FEATURES 15 0to3 _ 0 16 TOTAL RANK 2.9 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 13 17 SITE VALUES wildlife habitat, open space 18 COMPATIBILITY WITH Preservation of single trees or groups of trees would DEVELOPMENT preserve much of the character of this area without restricting development. 19 COMMENTS West half of unit 13 is riparian. The east half has at least evidence of disturbance one structure. wildlife observations management needs A portion of this area may have been a nursery. The area existing uses is not succeeding uniformly, indicating uses that are not other compatible with the continued succession of the existing forest. This area is an urban forest area. Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 15 2 DATE of evaluation 11/22/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mix CANOPY CLOSURE 5 closed open scattered open COMMON TREE 6 SPECIES western red cedar, douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE 30-40 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional 10 ESTIMATED SIZE 3 11 LINKAGES high, low, none none 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre 0.3 RANK LINKAGES l4 0to1 0.5 RANK FEATURES 15 0to3 0 16 TOTAL RANK 2.8 Prepared by Mike Reichenbach Appendix C February, 199-1 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 15 17 SI'Z'E VALUES wildlife,open space 18 COMPATIBILITY WITH High density development boarders this unit. It was DEVELOPMENT probably preserved as part of the open space needs for the apartment complex and because of the ravine like nature of the parcel. 19 COMMENTS Removal of Himalayan black berry would help restore the evidence of disturbance site to a more natural condition. wildlife observations management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 17 2 DATE of evaluation 11/22/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed COMMON'TREE 6 SPECIES douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE 60-80vrs SUCCESSIONAL STAGE very early success 9 i early successional mature j late successional old growth mature 10 ESTIMATED SIZE 4 LINKAGES 11 high, low, none _ low 12 RANK NATURAL [QUALITY 1 to 5 :3 13 RANK SIZE .1/acre 0.4 RANK LINKAGES 14 0to1 1 __ 0.5 RANK FEATURES I50to3 0 16,TOTAL RANK 3.9 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 17 17 SITE VALUES open space, wildlife 18 COMPATIBILITY WITH Development in a stand of Douglas-fir is rarely successful. DEVELOPMENT Opening the stand to create roads, driveways and building sites requires the removal of trees. Such removal changes the microclimates and the remaining trees often begin to decline and die prematurely. The remaining trees are also more apt to be blown over. 19 COMMENTS This stand is one of a few that is a closed canopy Douglas- evidence of disturbance fir stand. wildlife observations management needs A house is located on this parcel. This house may predate existing uses the establishment of this forest. other J- -- Prepared by Mike Reichenbach Appendix C February. 199-1 City of Tigard Forest Areas Inventory Page I Data Sheet 1 NATURAL AREA 18 2 DATE of evaluation 1/18/94 via SRI and aerial photo interpretation only CATEGORY OF' 3 NATURAL AREA Forested, Unique Forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub Riparian deciduous and Upland Conifer CANOPY CLOSURE 5 closed open scattered Scattered COMMON TREE 6 SPECIES Douglas-fir, Oregon white ash, willow OCCURRENCE OF HABITAT 7 abundant - common uncommon common 8 !ESTLMATED AGE unknown ;SUCCESSIONAL 'STAGE very early success 9 early successional mature late successional ! old growth mature 10 ESTIMATED SIZE 33 11 'LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 3 13IRANK SIZE .Macre 3.3 RANK LINKAGES 14 Otol 1 RANK FEATURES 150to3 2 16 TOTAL RANK 9.3 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 18 17 SITE VALUES open space, wildlife,hiking/biking trail 18 COMPATIBILITY WITH Development in the wetland areas may not be compatible DEVELOPMENT with preservation of the natural quality of this site. 19 COMMENTS This area has a great diversity of habitats and is ranked evidence of disturbance by SRI as a Class I habitat. The area includes SRI wildlife observations wetlands E14, 15, 16, 18, 19, 20 and 21. Add one point for management needs wetland and one point for diversity. existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 32 2 DATE of evaluation 2/4/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mix, upland conifer CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES western red cedar, big leaf maple, Douglas-fir, alder OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE 60-80 plus SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature to late successional 10 ESTIMATED SIZE 16 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 4 13 RANK SIZE .1/acre 1.6 RANK LINKAGES 14 O to l 1 RANK FEATURES 15 Oto3 9 16 TOTAL RANK 8.6 Prepared by Mike Reichenbach Appendix C Februar. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 19 2 DATE of evaluation 1/4/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer. riparian mix riparian deciduous riparian shrub riparian mix CANOPY CLOSURE 5 closed open scattered scattered COMMON TREE 6 SPECIES Oregon white ash, Oregon white oak, Ponderosa pine OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE >100 SUCCESSIONAL STAGE very early success 9 ' early successional mature late successional old growth mature to late successional 10 ESTIMATED SIZE 18 1 LINKAGES high. low, none high 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 1.8 (RANK LINKAGES 14 Oto 1 1 RANK FEATURES to Oto3 1 16 I TOTAL RANK 6.8 Prepared by Mike Reichenbach Appendix C February. 199.1 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 19 17 SITE VALUES wildlife,open space,passive park use 18 COMPATIBILITY WITH Much of this area is already dedicated to park use'. The DEVELOPMENT ponderosa pine and Oregon white oak to the north and west of the park represent a remnant of a Oregon white oak/ponderosa pine remnant. Development to preserve the natural character of the savanna community is not compatible. However, development could proceed if only individual trees are to be preserved. 19 COMMENTS This unit represents two distinct natural communities. A evidence of disturbance remnant of the Oregon white oak savanna and a more wildlife observations common riparian unit. Both areas have show evidence of management needs disturbance. Within the park,lawn has been established existing uses under the trees. Along the stream Himalaya black berry other is the predominant vegetation. Restoration of this area to a more natural condition would require removal of the non-native species and replacement with native grasses and shrubs. Add one point for the uncommon nature of this community. Prepared by Mike Reichenbacb Appendix C February. 1931 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 20 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir, Oregon white oak, ponderosa pine, alder OCCURRENCE OF HABITAT 1. 7 abundant common uncommon uncommon 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional to mature 10 ESTIMATED SIZE 22 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 2.2 RANK LINKAGES 14 Oto1 j 1 15 RANK FEATURES Oto3 2 16 TOTAL RANK j 8.2 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 20 17 SITE VALUES wildlife,open space,passive recreation. Preservation of the ponderosa pine and Oregon white oak should be a priority. 18 COMPATIBILITY WITH Preservation efforts should begin with site planning. DEVELOPMENT Buildings, roads, and other improvements should be sited to reduce damage to existing trees. Space should be left for preserving root systems. Set aside of a Iarger area, to be maintained in its natural state may be desired. 19 COMMENTS The farthest south portion of this unit is located on an evidence of disturbance area being developed. This portion of the unit contains a wildlife observations remnant of an Oregon white oak/ponderosa pine savanna. management needs Tree preservation in this area may be possible. If during existing uses the siting of buildings and other improvements individual other and groups of trees are maintained. And add one point for the remnant oak-ponderosa pine savanna Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 21 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland hardwood CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES alder, douglas fir OCCURRENCE OF HABITAT 7 abundant common uncommon mature_ 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature I late successional old growth mature 10 ESTIMATED SIZE 24 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 :3 13 RANK SIZE .1/acre 2.4 RANK LINKAGES 14 0 to 1 _ 1 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 6.4 Prepared by Mike Reichenbach Appendix C Februar .. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 21 17 SITE VALUES wildlife, open space 18 COMPATIBILITY WITH preservation of individual and groups of trees DEVELOPMENT 19 COMMENTS Much of this area was difficult to assess because of lack of evidence of disturbance access. wildlife observations management needs existing uses other Prepared by Mike Reichenbach Appendix C February 159 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 22 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested, Unique unique VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered scattered 6 COMMON TREE SPECIES Oregon white oak, ponderosa pine, black locust OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE >100 SUCCESSIONAL STAGE I very early success 9 I early successional mature late successional old growth old growth 10k'ESTIMLATED SIZE 5 1 t ;LINKAGES j high, low, none none ;RANK NATURAL 12 ;QUALITY 1 to 5 5 13 !RANK SIZE .1/acre 0.5 RANK LINKAGES 14 Oto 1 0 [RANK FEATURES 151Oto3 2 16'TOTAL RANK 7.5 Prepared by Mike Reichenbach Appendix C February. 1991 City of Tigard Forest Areas Inventory Page 2 Data Sheet NATURAL AREA 22 17 SITE VALUES wildlife,open space, preservation of natural heritage 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS This area is likely a nearly intact remnant of an Oregon - evidence of disturbance white oak/ponderosa pine savanna. The area is bounded wildlife observations by railroad tracks. It is typical for these types of isolated management needs areas to escape disturbance and to retain much of their existing uses natural character. This area has been invaded by non- other native black locust. The black locust should be removed. Woody shrub species are becoming established. This may be the result of a lack of burning. The Oregon white oak savanna is likely to have benefited from fires. These fires were not so severe as to kill the established tree species. The fire would have favored fire dependent species, especially grasses native to savanna. This site should be investigated further to determine if this was a savanna during presettlement. If so, this area is one of the few .. remaining examples in the metropolitan area. Add two points for uniqueness. Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 23 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested,Unique unique VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES Oregon white oak,ponderosa pine, Oregon white ash OCCURRENCE OF HABITAT 7 abundant - common uncommon j uncommon 8 ESTIMATED AGE ! >100 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth late successional 10 ESTIMATED SIZE ! 2 11 LINKAGES high, low, none none 12 RANK NATURAL QUALITY 1 to 5 :3 13 RANK SIZE .1/acre 0.2 RANK LINKAGES 14 Otol 0 15 RANK FEATURES Oto3 1 16 TOTAL RANK 4.2 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 23 17 SITE VALUES The area is developed and has house sites. The value in retention of the trees is for a buffer between the homesite and the highway. And the large old trees of these species are not common in Tigard 18 COMPATIBILITY WITH Much of this area is already developed DEVELOPMENT 19 COMMENTS Information on how to preserve and care for native trees evidence of disturbance should be developed and made available to landowners. wildlife observations Planting efforts, using native species, may be needed if management needs Tigard is to retain the native character of areas such as existing uses this unit. other This unit contains a portion or SRI Wetland C-12. Add one point. Prepared by Mike Reichenbach Appendix C February 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet I NATURAL AREA 24 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous CANOPY CLOSURE 5 closed open scattered scattered 6 COMMON'TREE SPECIES Oregon white ash. alder OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional 10 ESTIMATED SIZE _ 13 11 LINKAGES high, low. none high 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre 1.3 14 RANK LINKAGES O to l 1 15 RANK FEATURES Oto3 _ 1 16 TOTAL RANK - 5.3 Prepared by Mike Reichenbach Appendix C February 1991 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 24 17 SPIE VALUES corridor, wildlife, open space [ - 18 COMPATIBILITY WITH Preservation of individual and groups of trees DEVELOPMENT 1-19 COMMENTS Add oneoint for wetland. This is u nit includes all or a evidence of disturbance portion of SRI Wetland C15. wildlife observations management needs existing uses other 1 I Prepared by Mike Reichenbach Appendix C Februar\. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 25 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested, Unique unique VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous CANOPY CLOSURE 5 closed open scattered scattered 6 COMMON TREE SPECIES Oregon white oak, Oregon white ash OCCURRENCE OF HABITAT 7 abundant common uncommon _ common 8 ESTIIVIA l'ED AGE >100 SUCCESSIONAL !STAGE very early success 9 early successional mature late successional old growth mature 101ESTI1'4ATED SIZE 1 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre 0.1 RANK LINKAGES 14 O to l 1 RANK FEATURES 15Oto3 0 16 ITOTAL RANK 3.1 Prepared by Mike Reicbenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 251 17 SITE VALUES Preservation of character of mature trees along stream_ 18 COMPATIBILITY WITH Development already surrounds these trees, the area to DEVELOPMENT the west is a field 19 COMMENTS The site is not high quality because of disturbance, evidence of disturbance however because these trees are mature and are along the wildlife observations stream the character of the area was worthy of note. management needs existing uses Developing and providing tree care information to the other owners is recommended. Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 26 2 DATE of evaluation 1/3/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland deciduous CANOPY CLOSURE 5 closed open scattered scattered COMMON TREE 6 SPECIES Oregon white oak, Oregon white ash, alder OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional to mature 10 ESTIMATED SIZE 8 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 0.8 RANK LINKAGES 14 0to1 15 RANK FEATURES 0 to 3 16 TOTAL RANK 5.8 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 26 17 SITE VALUES wetland, riparian, corridor, wildlife, open space, natural study area for adjacent school 18 COMPATIBILITY WITH This area was designated as a wetland by SRI DEVELOPMENT 19 COMMENTS Evidence of disturbance includes changing the stream evidence of disturbance channel for the construction of 217. wildlife observations management needs However, this area has a wide variety of habitats and has existing uses been designated as a wetland by SRI. Add one point. other J. Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 27 2 DATE of evaluation 1/18/94 CATEGORY OF 3 NATURAL AREA Forested,Unique Forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub Upland mix and Riparian mix CANOPY CLOSURE 5 closed open scattered Closed, Southeastern portion is scattered COMMON TREE Oregon white oak, alder, Douglas-fir, big leaf maple, western red 6 SPECIES cedar, Oregon white ash OCCURRENCE OF HABITAT 7 abundant common The quality of the Oregon white oak stand on the northern part uncommon of this property is uncommon. Add one point. 8 ESTIMATED AGE 80 plus SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature to late successional 10 ESTIMATED SIZE 19 11 LINKAGES high, low, none _ none 12 RANK NATURAL QUALITY 1 to 5 i 4 13 RANK SIZE .1/acre 1 9 RANK LINKAGES 14 0to1 _ 0 RANK FEATURES 15 Oto3 1 16 TOTAL RANK 6.9 Prepared by Mike Reichenbach Appendix C February 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 27 17 SI'Z'E VALUES High quality oak forest in the northwest and northeast sections of this unit. The diameter of the trees is estimated at 18-24". Riparian section in the southwest. An area with individual and groups of oaks and other species, managed like a park. 18 COMPATIBILITY WITH Preservation of individual trees and groups of trees. On DEVELOPMENT the northwest and northeast development would reduce the quality of or destroy the oak forest. Setting this area aside would be most compatible with preservation of natural qualities. 19 COMMENTS Himalaya blackberry carpets much of riparian areas and evidence of disturbance oak forest. Disturbance to the area is most evident in the wildlife observations southeastern portion of the site. The southeastern area is management needs park like, with grass under many of the trees. An on-site existing uses inspection should be made to determine the preservation other potential of the northeast and northwestern areas of oak forest. Prepared by Mike Reichenbach Appendix C February 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 28 2 DATE of evaluation 1/18/94 CATEGORY OF 3 NATURAL AREA Forested,Unique Forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub Upland deciduous CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Oregon white oak, Oregon white ash, Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon cornmon 8 ESTIMATED AGE 80 plus_ SUCCESSIONAL S'T'AGE very early success 9 early successional mature late successional old growth mature, late successional 10 ESTIMATED SIZE 3 11 LINKAGES high, low, none low 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 0.3 14 RANK LINKAGES 0 to 1 0.5 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 3.8 Prepared by Mike Reichenbach Appendix C February 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 28 17 SITE VALUES Open space, wildlife,buffer between I-5 and the commercial-professional zoned area to the west. 18 COMPATIBILITY WITH Preserve selected trees and groups of trees. However this DEVELOPMENT will result in the loss of a buffer strip. 19 COMMENTS This unit boarders a forested urban area. Also this area evidence of disturbance appears have wetland characteristics as evident from the wildlife observations Oregon white ash. An on site visit to determine the management needs presence of wetland character should be conducted. existing uses other Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 29 2 DATE of evaluation 1/18/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland shrub, upland deciduous CANOPY CLOSURE 5 closed open scattered scattered COMMON TREE 6 SPECIES Oregon white oak, Oregon white ash, Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE mixed age SUCCESSIONAL STAGE very early success 9 j early successional I mature late successional old growth from early successional to mature 10!ESTIMATED SIZE 17 11 LINKAGES high. low, none low RANK NATURAL 12 QUALITY 1 to 2 13 RANK SIZE .1/acre I — 1.7 RANK LINKAGES 14 0 to 1 0.5 RANK FEATURES 15- 0 to 3 0 16'TOTAL RANK 4.2 Prepared by Mike Reicbenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 29 17 SI'Z'E VALUES Open space, wildlife. This area includes some developed properties, especially east of the right-of-way for 70th. The area diverse, and includes upland shrub, upland deciduous vegetation and upland grassland. 18 COMPATIBILITY WITH Preservation of single larger specimen trees and groups of DEVELOPMENT trees would be compatible with development. 19 COMMENTS Young thick stands of Oregon white oak appear to be evidence of disturbance common. Some of the larger trees may have been planted wildlife observations by the first landowners. Small areas within this unit may management needs be of high quality. A more detailed inspection should be existing uses conducted to determine if specific areas of high quality other exist. Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 30 2 DA'Z'E of evaluation 1/18/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland deciduous CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES Oregon white oak OCCURRENCE OF HABITAT 7 abundant - common uncommon common 8 ESTIMA'T'ED AGE 100 plus SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature to late successional 10 ESTIMATED SIZE 4 11 LINKAGES high,low, none none 12 RANK NATURAL QUALITY 1 to 5 4 13 RANK SIZE .1/acre 0.4 RANK LINKAGES 14 Oto1 0 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 4.4 Prepared by Mike Reichenbach Appendix C February, I994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 30 17 SITE VALUES Older Oregon white oak stand. 18 COMPATIBILITY WITH Preservation of large old trees would be compatible with DEVELOPMENT surrounding development. 19 COMMENTS Himalaya blackberry is present. As of the date of evidence of disturbance inspection a for sale sign was posted on the property. wildlife observations management needs existing uses other • Prepared by Mike Reichenbach Appendix C February, 199-I City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 31 2 DATE of evaluation 2/4/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered closed on the northern most edge and open elsewhere COMMON TREE 6 SPECIES western red cedar. cherry. alder OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE 15 to 20 years old over most of the site, On the north 60 plus SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional 10 ESTIMATED SIZE 3 LINKAGES 11 high, low, none -- low 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre 0.3 RANK LINKAGES 14 0 to 1 0.5 RANK FEATURES 15 0 to 3 0 16 TOTAL RANK 2.8 Prepared by Mike Reichenbach Appendix C Februar . 1991 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 31 17 SITE VALUES Developed land separates this area from Ash Creek to the north. However trees have been retained on the developed land and thus the two areas have maintained some linkage. 18 COMPATIBILITY WITH Western red cedar can survive construction and DEVELOPMENT development better than most other Pacific Northwest conifers. Trees retained on adjacent developed sites appear to be healthy. Preserving individual specimen trees and groups of trees along Ventura would be compatible with development. 19 COMMENTS The western redcedar have an estimated diameter range evidence of disturbance of 12 to 24". Much of the southern part of this area wildlife observations appears to have been a farmstead. This area appears to management needs have been left to nature about 15 to 25 years ago, thus existing uses succession over much of this site is in its early stages. other Prepared by Mike Reichenbach Appendix C Februar:._ 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 32 17 SI'Z'E VALUES The area east of the right-of-way for 74th was identified as SRI wetland C16, add one point. The area west of the right-of-way for 74th includes some developed properties. The natural quality of the area west of 74th is not as high as that area east of 74th. SRI described the site as follows, "This stretch of ash creek flows through very hilly terrain. ... The creek ... is fast moving, permanent, ... and • has a rocky bottom. ... Cedar is the dominant__. species... Douglas-fir is dominant at higher elevations from the stream. Alder is present... albeit not in great numbers_ Large-leafed maple,vine maple and snowberry were also observed. A very scenic stretch of Ash Creek." 18 COMPATIBILITY WITH Western redcedar are more windfirm and tolerant of DEVELOPMENT development than most other native conifers. However development of this area may not be compatible with preservation of the natural quality of Ash Creek. 19 COMMENTS An on-site inspection should be conducted to further evidence of disturbance quantify the natural quality of this site. Acquisition of wildlife observations this site may be desirable. management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 40 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous CANOPY CLOSURE 5 closed open scattered scattered COMMON TREE 6 SPECIES Oregon white ash, willow OCCURRENCE OF HABITAT 7 abundant -. common ( uncommon common 8 'ESTIMATED AGE unknown 'SUCCESSIONAL 'STAGE very early success 9 early successional mature late successional 1 old growth _ mature 10'ESTIMATED SIZE 9 I Z LINEAGES high, low, none high I,RANK NATURAL 121QUALITY 1 to 5 _ 4 13 ;RANK SIZE .1/acre 0.9 CRANK LINKAGES 1410 to 1 1 RANK FEATURES 1510to3 1 16 TOTAL RANK 6.9 Prepared by Mike Reichenbach Appendix C Februar}. I994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 40 17 SPIE VALUES wetland,riparian,corridor, open space 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS Himalaya black berry has become established around the evidence of disturbance boarders of this area. The area east of 135th Ave, wildlife observations includes an area with 60 to 80 year old Douglas-fir. This management needs area is reported to be good fringe habitat by SRI. I existing uses observed a red-tailed hawk perched in one of the dead other trees. SRI delineates this area as SRI Wetland Al and A2. Add one point for wetland. - Prepared by Mike Reichenbach Appendix C February, 1991 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 43 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mix CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir, western red cedar, red alder OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional 10 ESTIMATED SIZE 4 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 4 13 RANK SIZE .1/acre 0-4 RANK LINKAGES 14 0to1 _ 1 RANK FEATURES 15 Oto3 1 16 TOTAL RANK 6.4 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 43 17 SITE VALUES This area is part of Summer Lake Park. It is beneficial as an area for wildlife,open space,passive recreation, and buffer. 18 COMPATIBILITY WITH As a passive park area,or area to extend the trail system. DEVELOPMENT If extension of 19 COMMENTS This area would benefit from eradication of non-native evidence of disturbance species and new plantings of native plants on the edge to wildlife observations enlarge the area of this forest. management needs existing uses This area has good wildlife value and shows few signs of other disturbance. Although the stand of trees is not yet mature the quality of the area is very high. This forest boarders on an SRI designated wetland, A3. Add one point. . J. Prepared by Mike Reichenbach Appendix C February. 1'.494 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 44 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous CANOPY CLOSURE . 5 closed open scattered scattered COMMON 'TREE 6 SPECIES alder,cottonwood, Oregon white ash OCCURRENCE OF HABITAT 7 abundant -. common uncommon common 8 ESTIMATED AGE 20 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth very early successional 10 ESTIMATED SIZE 5 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY Ito 5 1 13 RANK SIZE .1/acre 0.5 RANK LINKAGES 14 Oto1 RANK FEATURES 15 0to3 0 16 TOTAL RANK 2.5 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 44 17 SITE VALUES wildlife,open space, buffer between residential development and area to west. Possible area to expand the hiking biking trail. 18 COMPATIBILITY WITH This area has a intermittent stream running through it DEVELOPMENT which may require a buffer area around the creek. 19 COMMENTS The area appears to be in a very early successional stage. evidence of disturbance It is possible this area was farmed 10 or 20 years ago and wildlife observations then left fallow. management needs existing uses other Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 45 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE 60 to 80 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 221 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 4 13 RANK SIZE .1/acre 2.2 RANK LINKAGES 14 Oto 1 I RANK FEATURES 15 0to3 0 16 TOTAL RANK 7.2 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 45 17 SITE VALUES This area is on Bull Mountain. Much of this area can be seen from the north. This site is adjacent to a much larger area of forest outside of the active planning boundary. 18 COMPATIBILITY WITH Steep slopes immediately west of the Hillshire DEVELOPMENT development may preclude development of much of this tract. 19 COMMENTS This area has a high aesthetic value. The 22 acres within evidence of disturbance the active planning boundary are part of a larger forest. wildlife observations The total acreage of the larger forest, including the 22 management needs acres,is estimated at 70 acres. Some of this larger area existing uses has low density residential. The low density allows other building of houses with only minor disturbance to the forest. Conversely, the Hillshire development is of a higher density and even trees that the developer tried to save are dying. These remaining trees have a high probability of dying from construction actiyities or being blown over. Development such as that of r p tie H>•llsl;ire� site is not compatible with preserving a forest dominated by Douglas-fir. -4. Prepared by Mike Reichenbach Appendix C Februar>. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 46 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered open 6 COMMON TREE SPECIES cottonwood, Douglas-fir regeneration OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE 15 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth very early successional 10 ESTIMATED SIZE 9 11 LINKAGES high, low, none high I2 RANK NATURAL QUALITY 1 to 5 1 13 RANK SIZE .1/acre 0.9 RANK LINKAGES 14 Oto1 _ 1 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 2.9 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 46 17 SITE VALUES This site was harvested within the last 10 or 15 years. It is adjacent to older stands that have more diversity of species. This area has little to recommend for preservation. 18 COMPATIBILITY WITH Compatible DEVELOPMENT 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other J. • Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 47 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA • Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland deciduous CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES red alder OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9early successional imature late successional old growth mature 10 ESTIMATED SIZE 4 l t LINKAGES high. low, none high RANK NATURAL 12 QUALITY 1 to 5 3 13 RANK SIZE .1/acre 0.4 RANK LINKAGES 14 Oto 1 I RANK FEATURES 15 Oto3 0 16[TOTAL RANK 4.4 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 47 17 SITE VALUES This site slopes to the northwest and boarders what is likely to be an intermittent stream. The area has high wildlife value. It is adjacent to units 46, 48 and 49. 18 COMPATIBILITY WITH The area has good access from 132 Ave. Development DEVELOPMENT might proceed after groups of trees are selected for preservation. 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 ;NATURAL AREA 48 2 !DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES ( Douglas-fir, big leaf maple OCCURRENCE OF HABITAT 7 t abundant common uncommon common 8 IESTIMATED AGE i 60 to 80 years (SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth • mature 10 ESTIMATED SIZE 1 18 11 LINKAGES high, low, none high 1 'RANK NATURAL (QUALITY 1 to 5 3 13;RANK SIZE .1/acre L8 CRANK LINKAGES 140to1 RANK FEATURES o10to3 0 16 TOTAL RANK 5.8 C Prepared by Mike Reicbenbach Appendix C February. 1`_9-4 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 48 17 SITE VALUES wildlife value,buffer between developed areas and could serve as part of an interconnected trail system 18 COMPATIBILITY WITH This area is a ravine site and appears to have been left as DEVELOPMENT a buffer between new developments. 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other �. Prepared b� Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 49 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested, Unique Forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer/riparian conifer CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir, big leaf maple, alder OCCURRENCE OF HABITAT 7 abundant -- common uncommon common 8 ESTIMATED AGE 60-100 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 79 11 LINKAGES high, low, none high RANK NATURAL 12 QUALITY 1 to 5 3 13 RANK SIZE .1/acre 7-9 RANK LINKAGES 14 Otol 1 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 11.9 Prepared by Mike Reichenbach Appendix C February. 1991 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 49 17 SITE VALUES This area is a large unit bordered by units 48, 47, 59 and forested urban areas. The size and diversity of the area makes it valuable for a wide variety of wildlife. However, this area has a large amount of edge. Therefore species dependent on contiguous forest are not likely to be permanent residents of this forest. 18 COMPATIBILITY WITH The area includes a intermittent stream. Portions of the DEVELOPMENT area may be too steep to develop. Preservation of individual trees is not likely to be successful. Preservation efforts should be aimed at preserving groups of trees in common areas. These areas might be along the - ravines. Adding to the potential for hiking and biking trail development. Other options would include preserving a large area for park use. 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other J. Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 50 2 DA'Z'E of evaluation 1=9/93 CATEGORY OF 3 NATURAL AREA Forested,Unique ffisested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mixiulrnd mix CANOPY CLOSURE 5 closed open scattered dosed 6 COMMON TREE Oregon white ash, Douglas-fir,bigleaf maple, western reE'cedar, SPECIES Oregon white oak, Panderer pine OCCURRENCE OF HABITAT 7 abundant common uncommon mammon 8 ESTIMATED AGE > 100 for the po de -a pine SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth late saisional 10 ESTIMATED SIZE 24 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 4 13 RANK SIZE .1/acre 2.4 RANK LINKAGES 14 O to l 1 RANK FEATURES 15 Oto3 2 16 TOTAL RANK 9.4 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 50 17 SITE VALUES Wildlife,open space,learning area for school, wetland 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS Much of this site is on Fowler Junior High School evidence of disturbance Property. The area is has a diversity of habitats including wildlife observations wetland and Oregon white oak/Ponderosa pine habitat. management needs existing uses Add two points for uncommon forest type and for wetland_ other SRI wetlands include E34, E35,E36 and B17. -1. Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 51 2 DATE of evaluation 12/29/93 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland deciduous CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Oregon white ash OCCURRENCE OF HABITAT �- 7 abundant -- common uncommon ( abundant 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 4 11 LINKAGES high, low, none i high 12 RANK NATURAL QUALITY 1 to 5 ( 3 13 RANK SIZE .1/acre I 0.4 14 RANK LINKAGES Oto l 1 RANK FEATURES 15 Oto3 1 16 TOTAL RANK i 5.4 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 51 17 SITE VALUES open space, wildlife, riparian, wetland 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS This area includes a portion of SRI wetland B5. evidence of disturbance wildlife observations Add one point for wetland. management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet I NATURAL AREA 53 2 DATE of evaluation 1/4/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mix CANOPY CLOSURE 5 closed open scattered open COMMON TREE 6 SPECIES Douglas-fir, alder OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE north area, 25 - south area 60 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth early successional to mature 10 ESTIMATED SIZE 8 11 LINKAGES high, low, none none 12 RANK NATURAL QUALITY 1 to 5 2 13 RANK SIZE .1/acre a8 RANK LINKAGES 14 Oto 1 0 RANK FEATURES 15 0to3 0 16 TOTAL RANK 2.8 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 53 17 SITE VALUES wildlife, open space 18 COMPATIBILITY WITH A portion of this area is currently being developed DEVELOPMENT 19 COMMENTS A small portion of the southern part of this area is a stand evidence of disturbance of 60 to 80 year old Douglas-fir. If a portion of this forest wildlife observations is to be preserved, this is the area with the higher value. management needs Development within this stand is not compatible with tree existing uses preservation. other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 54 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mixed CANOPY CLOSURE 5 closed open scattered scattered COMMON'FREE alder,big leaf maple, Oregon white ash, Douglas-fir,Western red 6 SPECIES cedar OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE 60-80 yrs SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 15 11 LINKAGES high, low, none hi•h 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 1-5 RANK LINKAGES 14 0to1 1 RANK FEATURES 15 Oto3 1 16'TOTAL RANK 6.5 Prepared by Mike Reichenbacb Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 54 17 SITE VALUES riparian vegetation, buffer between the Tualatin River and adjacent development. 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS This area is a long riparian buffer. It extends to Cook evidence of disturbance park and follows a drainage between Cook Park and the wildlife observations developments to the north. A portion of this area includes management needs SRI wetlands F15, F16, F17, F18, and F19. existing uses other Add one point for wetland. Prepared by Mike Reichenbach Appendix C February. 199-1 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 55 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mixed and upland mixed CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir, Oregon white ash, Big leaf maple, Oregon white oak OCCURRENCE OF HABITAT 7 abundant -. common uncommon common 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 50 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY Ito 5 3 13 RANK SIZE .1/acre 5 RANK LINKAGES 14 O to l I RANK FEATURES 15 Oto3 2 16 TOTAL RANK 11 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 55 17 SPl'E VALUES recreation, open space, wildlife,hiking 18 COMPATIBILITY WITH none DEVELOPMENT 19 COMMENTS This area includes a portion of Cook Park and a buffer evidence of disturbance along the Tualatin River. Removal of non-native species wildlife observations would improve the natural quality of the site. Uncommon management needs species found in the park include western yew. existing uses other The dominant species in the parks picnic area is Oregon white oak. Like the trees in Woodard park, these trees may be in a state of decline and efforts should be made to stabilize this population. The area under the dripline of these trees should be mulched with and organic mulch_ This will reduce competition between these trees and the non-native grass currently growing beneath them. While such efforts may prolong the life span of these trees, it is unlikely that these trees will live longer than 50 more years. An effort should be made now to plant Oregon white oak to replace these trees. Throughout the park native vegetation should be used to maintain and improve the natural quality of the area. Trees in the park area, especially those in high use areas. should be inspected regularly for their potential to fail. Add one point for wetland. Add one point for Oregon white oak forest type Prepared by Mike Reichenbach Appendix C Februar.. 1994 City of Tigard Forest Areas Inventory per' Data Sheet 1 NATURAL AREA 56 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian deciduous CANOPY CLOSURE closed open scattered scattered COMMON TREE t' SPECIES big leaf maple, Douglas-fir, western red cedar, alder OCCURRENCE OF HABITAT _-, 7 abundant common uncommon common 8 ESTIMATED AGE unknownt SUCCESSIONAL STAGE very early success 9 f early successional mature late successional I old growth mature` 10 ESTIMATED SIZE 11 LINKAGES high, low, none highl 12 RANK NATURAL QUALITY 1 to 5 1 13 RANK SIZE .1/acre 0_ ' RANK LINKAGES 14 0 to 1 1 RANK FEATURES Ia Oto3 0 16 iTOTAL RANK 5. Prepared by Mike Reichenbach Appendix C February`•"s` - City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 56 I7 SITE VALUES buffer between houses, wildlife habitat, open space 18 COMPATIBILITY WITH none, area around this parcel is already developed DEVELOPMENT 19 COMMENTS This area is a high quality riparian/forest. Few non- evidence of disturbance native species were found. Encourage adjacent wildlife observations landowners to utilize native plants and landscape to management needs restore the natural community. An example of a good existing uses transition between native vegetation and the developed other landscape can be found at 16085 Copper Creek Drive. Since much of the forested area that remains in Tigard is already developed;action should be taken to preserve and enhance the remaining areas through cooperative programs with adjacent landowners. This might include the development of brochures regarding landscaping with native plants,preserving trees, identifying hazard trees, or might include the use of seminars and workshops for developers on tree preservation issues. Beaverton will be -- hosting a tree preservation workshop in 1994. Prepared by Mike Reichenbach Appendix C Februarc, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 57 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub riparian mixed CANOPY CLOSURE 5 closed open scattered scattered COMMON TREE Douglas-fir, western red cedar, Oregon white ash, alder, big leaf 6 SPECIES maple OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE unknown SUCCESSIONAL STAGE - very early success 9 early successional mature late successional old growth mature 10 ESTIMA'T'ED SIZE 31 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre 3 RANK LINKAGES 14 Oto 1 I RANK FEATURES 15 Oto3 1 16 TOTAL RANK 8 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 57 17 SI'Z'E VALUES wetland, wildlife, open space, extension of trail system 18 COMPA'T'IBILITY WITH Low density residential would allow for the retention of DEVELOPMENT individual trees and groups of trees as well as maintaining wetlands and buffer strips around creeks. 19 COMMENTS This unit is composed of two large contiguous blocks of evidence of disturbance forested land. wildlife observations management needs The area is currently owned by several landowners. existing uses Information should be developed and provided to these other landowners concerning how they might restore and preserve the natural quality of the land. Some of the surrounding area is forested urban area. Prepared by Mike Reichenbach Appendix C February. 1991 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 58 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir OCCURRENCE OF HABITAT 7 abundant common uncommon common 8 ESTIMATED AGE 80 to 100 based on ring count SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE 5 11 LINKAGES high, low, none none 12 RANK NATURAL QUALITY 1 to 5 3 13 RANK SIZE .1/acre — 0.5 RANK LINKAGES 14 Oto1 0 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 3.5 Prepared by Mike Reichenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 58 17 SITE VALUES This area is being developed. 18 COMPATIBILITY WITH Retaining individual Douglas-fir that once were part of a DEVELOPMENT stand is not usually successful. The retained trees are often more subject to windthrow increase the risk of property damage and injury from falling trees. Trees retained on newly developed lots should be monitored for their failure potential_ 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other 1. Prepared by Mike Reichenbach Appendix C February, 1991 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 59 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed 6 COMMON TREE SPECIES Douglas-fir OCCURRENCE OF HABITAT 7 abundant common I uncommon common 8 (ESTIMATED AGE 70-90 ,SUCCESSIONAL `STAGE very early success 9i early successional mature late successional old growth mature 10(ESTIMATED SIZE 20 11 LINKAGES , high, low, none high (RANK NATURAL 12 ;QUALITY 1 to 5 3 13 RANK SIZE .1/acre 2 14 ;RANK LINKAGES j0 to 1 1 RANK FEATURES 1a;0to3 0 16 iTOTAL RANK 6 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory paw Data Sheet 1 NATURAL AREA 59 17 SITE VALUES wildlife, open space 18 COMPATIBILITY WITH This area is a mature Douglas-fir stand, preserzm of DEVELOPMENT the stand is not compatible with development 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other -- Prepared by Mike Reichenbach Appendix C Februar.,_iw;t City of Tigard Forest Areas Inventory Page 1 Data Sheet I NATURAL AREA 59A 2 DATE of evaluation 1/6/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland deciduous CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES alder OCCURRENCE OF HABITAT 7 abundant -. common uncommon common 8 ESTIMATED AGE 15 to 25 SUCCESSIONAL STAGE very early success 9 early successional mature late successional _ old growth early successional 10 ESTIMATED SIZE 4 11 LINKAGES high, low, none high 12 RANK NATURAL QUALITY I to 5 2 13 RANK SIZE -1/acre (14 RANK LINKAGES 14 0 to 1 _ 1 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 3-4 Prepared by Mike Reichenbach Appendix C February, 199-1 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 59A 17 SITE VALUES wildlife, open space 18 COMPATIBILITY WITH DEVELOPMENT 19 COMMENTS evidence of disturbance wildlife observations management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 60 2 DATE of evaluation 1/4/93 CATEGORY OF 3 NATURAL AREA Forested, Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland conifer CANOPY CLOSURE 5 closed open scattered closed COMMON TREE 6 SPECIES Douglas-fir OCCURRENCE OF HABITAT 7 abundant -- common uncommon common 8 ESTIMATED AGE 60 to 80 SUCCESSIONAL STAGE very early success 9 early successional mature late successional old growth mature 10 ESTIMATED SIZE f 25 11 LINKAGES high, low, none low 12 RANK NATURAL QUALITY 1 to 5 i 3 13 RANK SIZE .1/acre { 2.5 14 RANK LINKAGES Oto 1 0.5 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 6 Prepared by Mike Reicbenbach Appendix C February. 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet 1 NATURAL AREA 60 17 SITE VALUES buffer between high density residential and Pacific highway. wildlife 18 COMPATIBILITY WITH Preservation individual trees is not generally successful_ DEVELOPMENT Douglas-fir stands need to be preserved in larger units, usually 2 or more acres. 19 COMMENTS Currently a portion of this area is being reviewed for evidence of disturbance additional development. wildlife observations management needs existing uses other Prepared by Mike Reichenbach Appendix C February, 199-1 City of Tigard Forest Areas Inventory Page 1 Data Sheet 1 NATURAL AREA 61 2 DATE of evaluation 1/4/94 CATEGORY OF 3 NATURAL AREA Forested,Unique forested VEGETATION TYPE upland conifer upland mix upland deciduous 4 upland shrub riparian conifer riparian mix riparian deciduous riparian shrub upland mixed CANOPY CLOSURE 5 closed open scattered open COMMON'FREE 6 SPECIES see comments OCCURRENCE OF HABITAT 7 abundant common uncommon uncommon 8 ESTIMATED AGE <20 SUCCESSIONAL 'STAGE very early success 9 I early successional mature 1 late successional old growth very early successional 10 ESTIMATED SIZE 15 I1 LINKAGES high, low, none low RANK NATURAL 12 ,QUALITY I to 5 13 I RANK SIZE .1/acre 1.5 RANK LINKAGES 14 Oto 1 0.5 RANK FEATURES 15 Oto3 0 16 TOTAL RANK 3 Prepared by Mike Reichenbach Appendix C February, 1994 City of Tigard Forest Areas Inventory Page 2 Data Sheet I NATURAL AREA 611 17 SITE VALUES Retention or transplanting of existing nursery stock I8 COMPATIBILITY WITH compatible, a portion of this area is being developed for a DEVELOPMENT church 19 COMMENTS Preservation should be limited to unique species, selected evidence of disturbance groups of trees and specimens. This property appears to wildlife observations have been an old nursery that was abandoned in the management needs 1970's or early 80's. existing uses other Prepared by Mike Reichenbach Appendix C February. 1994 APPENDIX LANDSCAPE PLANTINGS WITH SEEDLINGS APPENDIX Draft January, 1994 Prepared by Mike Iteichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory i LANDSCAPE PLANTINGS WITH SEEDLINGS TUBEX Fact Sheet #9 °Split Rock Forestry,Inc., January, 1992 -School Projects- Introduction School children love using TUBEX. They can plant On an April Saturday in 1990,dignitaries from in April and see results before summer vacation. Washington DC and hundreds of residents gathered in Younger students enjoy decorating the TUBEX with Pekin,Illinois.There were speeches,a parade, and a permanent markers with their names,drawings of how picnic. - they're going to care for the tree,etc. Be careful not to What caused all the commotion?An innovative tree block out too much light,however. Kids can use planting program using TUBEX Treeshelters and TUBEX over seedlings,or over nuts and acorns they seedling trees. collect(see Fact Sheet#5). The"Pekinites"used TUBEX TreesheIters and seedlings to establish more trees than they thought their -Utility Company Plantings- budget could possibly allow_The program has become a Some utility companies provide a free TUBEX and model for communities across the country. seedling to replace trees removed for line clearance. That Before TUBEX Treeshelters you, as a community tree way they can control the species planted, offering only planter or urban forester, had two options: I) You could short trees such as eastern redbud or Amur maple. plant large nursery stock, and plant only a small number Others offer seedlings and TUBEX to promote energy of trees,or 2)you could plant seedling trees,with saving plantings. They give seedlings and TUBEX to usually disappointing results. homeowners,along with instructions on where to plant TUBEX Treeshelters give you an exciting third trees for the greatest savings on heating and cooling. --,- option. For only a few dollars per tree,TUBEX reliably Several utility companies also use TUBEX to reforest turns seedlings into large, established trees in just 2 to 3 power line right-of-ways. Fact Sheets#'s 1-3 cover yearstechniques for forest regeneration. ADVANTAGES OF PLANTING SEEDLING TREES WITH TUBEX -Community Seedling Giveaways- -The Most Successfully Established Many cities have an Arbor Day seedling giveaway Trees For Your Budget- or sales to promote awareness of tree planting and care. Two inch caliper balled and burlapped trees often Unfortunately, most of the seedlings planted don't live cost more than$75. Labor costs can escalate the price to to become part of a healthy, growing urban forest. Some over$150 per tree. communities sell TUBEX along with seedling trees to raise money for forestry programs. -More Trees To Choose From- Price is not the only reason to use seedling trees and -Municipal Nurseries- TUBEX Treeshelters. Nurseries only grow selected Municipal nurseries allow city foresters and park kinds of trees to large caliper size. You will find a far crews to grow bard-to-get species and cultivars for future wider range of trees—including native species-- at transplant. It also means the trees you want will be nurseries that sell seedlings. available when your crews are. With TUBEX you can produce quality shade trees in just a few years, with -Increased Community Involvement- minimal care. Large trees do make an immediate visual impact. However you need trucks, tree spades,back hoes, and -Roadside and Highway Plantings- skilled(expensive)crews to plant them. High visibility, low cost establishment, and greater Anyone can plant a seedling and install a TUBEX. species selection--make it especially ideal for roadside The entire community,young and old,can get involved. and highway plantings. The Minnesota Department of Transportation planted bur oak seedlings with TUBEX EXAMPLE PROJECTS Treeshelters. Bur oak(and many other native trees)is Hundreds of community groups nationwide have used not available in large sizes, and would be too expensive TUBEX to get the most out of their budget. to plant on a large scale if it was. With TUBEX, the Here are some of the ways people use TUBEX. As agency can for the first time establish this long-lived, you can see,you are limited only by your imagination! drought resistant tree along its roads and highways. The California, Maryland. Arizona and several other Appendix D, Page 1 Copied with permission from Factsheets by Tree3sentials,PO Box 7097,St Paul,MN 55107, 1-800-248-8239 highway departments are using TUBEX on a range of instructional materials. projects. -Minimizing Vandalism- -Community Forest Groves- Humanizing TUBEX plantings with decorations, Some plans call for planting a large number of trees, decals,and signs goes a long way toward eliminating in an effort to create a new forest setting in a park or vandalism. Would-be vandals think twice before along a bike path. Again, B&B trees are too expensive damaging work done by children or friends, as opposed and seedlings are too fragile if left unprotected. Other to nameless agencies or businesses. TUBEX Fact Sheets tell you how to successfully Another way to reduce vandalism is to involve the establish forest stands of trees. most likely vandals in the projects. Teen-agers typically do the most property damage. When young people feel a TIPS FOR A SUCCESSFUL PROJECT part of a project(especially when they have fun doing -Buying Seedlings- it), they are much less likely to damage it. Most city-dwellers are used to planting large potted or "balled&burlapped" trees.The trees used with TUBEX -Installing TUBEX- are one or two year old seedlings, ranging in height from It is crucial that TUBEX Treeshelters be installed 4 to 30 inches tall. correctly. When volunteers or city crews install TUBER, You can buy 2 types of seedlings: sometimes installation instructions do not get 1)Potted("container grown"): Trees grown in small communicated. Make sure everyone understands how to (usually 2-3" square)pots have two advantages: First, install TUBEX properly. Use a good, sturdy stake that transplanting does not disrupt the root system, so there is will last at least 5 years in the ground. And be sure to little or no transplant shock. Container seedlings start to supervise the planting,to make sure all the TUBEX are grow right away after planting. For example, 6 inch pushed into the ground 1/2". container grown seedlings will usually emerge from 4 foot TUBEX in the first growing season. Second, you -Watering- can transplant potted seedlings any time during the Especially with plantings on private property, the growing season. tendency is to over water trees in TUBEX. Remember: Many nurseries grow named cultivars with known TUBEX captures moisture, and returns it to the soil. genetic characteristics in containers. Trees in TUBEX require less water than unsheltered 2)Bare root: Bare root seedlings are grown in beds at a seedlings. Do not give instructions to give trees a fixed nursery, and then dug roots and all for sale. Trees grown amount of water per week. Tell them to check the soil to this way cost less than container grown,stock. However, a depth of 3 inches. If the soil is dry, give the tree deep you can plant bare root seedlings only at certain times of watering with a trickling hose. the year. Because digging the trees disturbs the root systems, bare root trees take longer to start growing after -Mulch- planting. Three to four inches of organic mulch holds moisture With proper handling and planting both potted and and enhances the soil as it decomposes. TUBEX also bare root seedlings will produce a very successful keeps mulch away from the stem of the tree, avoiding project. insect and disease problems from contact between mulch TUBEX Fact Sheet#11 is a list of sources for and stem. seedlings of all kinds. -Don't Forget Maintenance- -Acceptance And Involvement- Down the road, the trees you plant today will These are the common denominators for successful require care, including pruning and watering in times of tree planting projects. Here are some tips for getting drought. more community support and involvement: Remember: When you use TUBEX you'll have more 1) Decorate the TUBER with brightly colored decals, successfully established trees to take care of. Be sure to briefly explaining the project, and giving credit to budget for their care in the future. Talk to your state responsible parties. (Contact our staff regarding decal urban forester about funding for tree care. specifications.) 2) Post a sign proclaiming the project, along roads or PUTTING IT ALL TOGETHER: bike paths. THE PEKIN, ILLINOIS STORY 3)Make a celebration of the planting, with entertainment Pekin,Illinois, a community of 30,000, began a and a picnic lunch. Keep it fun! major replanting program in April of 1990. The Illinois 4)If project includes trees planted on private property, Department of Conservation helped Pekin evaluate the give the homeowners instructions for proper care. condition of trees growing along city streets. Pekin's Again, our staff can assist in designing and writing trees were beginning to decline and die, and few new Appendix D, Page 2 Copied with permission from Factsheets by Treessentials,PO Box 7097,St Paul,MN 55107, 1-800-248-8239 trees were being planted. A long range planting program Beyond the statistics are the stories of how people was designed to begin filling the 15,000 vacant planting have accepted TUBEX/seedlings, and how excited they sites located on public and private property. are about trees. Seedling trees and four foot,tall TUBEX Treeshelters Last winter and spring,during Operation Desert were used in the first year of the program to establish Shield, townspeople wrapped yellow ribbons around tc 500 maple, oak,and linden trees along prestigious Park TUBEX. This winter, the acceptance of TUBEX reach--z. Avenue, a divided street that runs the length of the town. new heights. The forester who started it all called to say Trees were only planted in front of homes of people who people had decorated their TUBEX for the Holidays 1.1.-i :::_- requested a tree. lights, ribbons,and bows! Articles in the newspaper hailed the project, and a The local garden center now sells seedlings and parade marched down Park Avenue,with several TUBEX each spring. dignitaries riding in a horse-drawn carriage. Bright The success of this project can be seen when driving orange decals promoting the program were affixed to through Pekin-Not only have trees been planted along each TUBEX. city streets,but homeowners have begun planting Politicians got to play a role in the planting as well. additional trees in their yards. The mayor's signature was on each decal, and several local and state politicians spoke at a picnic following the PEKIN VIDEO AVAILABLE parade. The Pekin,Illinois project was documented on vide.: After six months, tree growth averaged between 2 and tape,with a grant from the U. S. Forest Service. It 3 feet. Vandalism was not found to be a problem;only follows the planting from planning through the first one seedling and shelter were damaged due to intentional growing season. misconduct. Pekin planted 500 more seedlings and Call our office for information on obtaining a copy of protected them with TUBEX in April of 1991. the video. -1. .. Appendix D, Page 3 Copied with permission from Factsheets by Treessentials,PO Box 7097.St Paul,MN 55107, 1-800-248-8239 APPENDIX TREE PROTECTION AND REPLACEMENT ORDINANCE OLYMPIA, WASHINGTON 1. • APPENDIX Draft January. 1994 Prepared by Mike Reichenbach,Arboreal Enterprises City of Tigard,Forested Natural Areas Inventory Chapter 16 . 60 TREE PROTECTION AND REPLACEMENT Sections : 16 . 60 . 010 Purpose. - 16 . 60 .020 Definitions . 16 . 60 .030 Applicability. 16 . 60 . 040 Exemptions. 16 . 60 . 050 Tree protection and replacement plan required. 16 . 60 . 060 Tree protection and replacement plan review procedure. 16 . 60 ._070 Review standards for tree protection. 16 . 60 . 080 Tree protection and replacement requirement--Transition to urban forestry. 16 . 60 . 090 Tree protection during construction_ 16 . 60 .100 Maintenance requirements . 16 . 60 .110 Variance for hardship. 16 . 60 .120 Appeal--Modification. 16 . 60 . 130 Enforcement--Penalties . 16 . 60 .140 _Liability on the city. 16 . 60 .150 Review of chapter by city council . 16 . 60 . 010 Purpose. Whereas rapid growth, the spread of development, and increasing demands upon natural re- sources have the effect of encroaching upon, despoiling or eliminating many of the trees and other foLnis of vegetation and natural resources and processes associated therewith which, if preserved and maintained in an undisturbed and natural condition, constitute important physical , aesthet- ic, recreation and economic assets to existing and future 460-5 (Olympia 6/92) 16 . 60 .020 residents of the city; and whereas the city council finds (1) that trees and woodland growth protect public health through the absorption of air pollutants and contamination, through the reduction of excessive noise and mental and physical damage related to noise pollution, through their cooling effect in the summer months and insulating effects in winter, through their positive impact on global climate change; (2) that trees and woodlands provide for public safety through the prevention of soil erosion, siltation and flooding; (3 ) that trees and woodlands are essential to the general welfare of the city by maintaining the natural beauty and the irreplaceable heritage for existing and future city residents; and (4) that Olympia can promote urban forestry practices which will preserve or enhance trees on public and private lands as they transition from natural areas into an urban environment . Therefore, the purposes of this chapter are: A. To provide for the protection, preservation, re- placement, proper maintenance and use of trees and wood- lands located in this city in order to preserve and enhance the city's physical and aesthetic character by preventing untimely and indiscriminate removal or destruction of trees ; B. To protect trees and woodlands of this city for 'their economic support of local property values and to pre- serve and enhance the Pacific Northwest's natural beauty; C. To minimize the adverse impacts of land disturbing activities on surface drainage, soil erosion, air auality, sedimentation and pollution of natural waterways, in order to minimize the public and private costs for stormwater control and treatment, utility maintenance and removal of pollution from our natural waterways; D. To promote site planning, construction practices and horticultural practices that are consistent with the reasonable use of property; E. To provide for the paramount public concern for these natural resources in the interest of a healthier and safer place in which to live and to promote the general welfare of the residents of this city; F. To implement the goals and objectives of the Wash- ington State Environmental Policy Act ; and G. To implement the goals and objectives of the city' s comprehensive plan. (Ord. 5248 §11 (part) , 1991) . 16 . 60 .020 Definitions . All words in this chapter shall have their customary dictionary definition except as specifically defined herein. 1 . "Agriculture" means the use of land for the prima- ry purpose of deriving income from growing plants or trees on land including, but not limited to, land used principal- ly for fruit or timber production, but not including land (Olympia 6/92 ) 460-6 16 .60 . 020 used principally for another use and only incidentally for growing trees or plants for income. 2 . "Buildable area" is that portion of a parcel of land wherein a building, parking and other improvements may be located and where construction activity may take place. Buildable areas shall not include streams, flood hazard areas, geologically hazard areas or wetlands as defined in Section 18 .76.030 . 3 . "Caliper" means the American Association of Nurs- eryman standard for trunk measurement of nursery stock. Caliper of the trunk shall be the trunk diameter measured six inches above the ground for up to and including four inch caliper size and twelve inches above the ground for larger sizes . 4 . "City" means the city of Olympia, Washington. 5 . "Clearing" means the destruction or removal of vegetation from a site by physical, mechanical, chemical or other means . This does not mean landscape maintenance or pruning consistent with accepted horticultural practices which does not impair the health or survival of the trees . 6 . "Commercial nursery or tree farm" means a licensed plant or tree nursery or fazlu in relation to those trees planted and growing on the premises of the licensee, which are planted and grown for sale through retail or wholesale channels in the ordinary course of the licensee' s business . 7 . "Critical root zone" is the area where the tree' s roots are located. This root zone is generally the area surrounding a tree at a distance which is equal to one foot for every caliper inch of tree . 8 . "Crown" means the area of a tree containing leaf or needle-bearing branches . 9 . "Diameter at breast height (d.b.h. ) " means a tree' s diameter in inches at four and one-half feet above the ground. On multistemmed or trunked trees, the diameter shall be the sum of diameters of all individual stems or trunks . 10 . "Director" means the director of the public works department or the director' s designee. 11 . "Grading" means any excavation, filling or combi- nation thereof . 12 . "Ground cover" means trees less than six inches d.b.h. and other vegetation. 13 . "Hazard tree" means any tree with any structural defect, disease, extreme size or combinations of these which make it subject to a high probability of failure which might cause damage to persons or property. 14 . "Land development" refers to any human induced change to real estate, including but not limited to land division, construction, installation or expansion of a building or other structure; drilling; and site alterations such as those due to land surface mining, dredging, grad- 460-7 (Olympia 6/92 ) 16 . 60 . 020 ing, construction of earthen berm, paving, improvements for use as parking or storage, excavation or clearing. Land development shall include improvements or remodeling only if a permit is required and the footprint of the building is expanded. 15. "Landmark tree" means a tree or group of trees designated as such by the city because of its exceptional value to the residents of the city (see Chapter 16.56) . 16 . "Limits of construction line" means a line sepa- rating the buildable areas from the protected areas. 17 . "Person" means any individual, organization, society, partnership, firm, association, joint venture, public or private corporation, trust, estate, commission, board, public or private institution, governmental agency, public or private utility, cooperative, interstate body or other legal entity. 18 . "Protected area" means all land where no con- struction activity is allowed and includes the critical root zone of those trees to be preserved. 19 . "Qualified professional forester" means a profes- sional with academic and field experience that makes him or her a recognized expert in urban forestry. This may in- clude arborists certified by the International Society of Arboriculture. 20 . "Remove or removal" means the act of removing a tree by digging up, cutting down or any act which causes a tree to die within a period of three years; including but not limited to, damage inflicted on the root system by machinery, storage of materials or soil compaction; chang- ing the ground level in the area of the tree' s root system; damage inflicted on the tree permitting infections or in- festation; excessive pruning; paving with concrete, asphalt or other impervious material within the drip-line, or any other action which is deemed harmful to the tree. 21 . "Street tree" means trees located within the street right-of-way, adjacent to public or private streets, including undeveloped areas . 22 . "Transplant" means the relocation of a tree from one place to another on the same property. 23 . "Tree" means any self-supporting perennial woody : plant characterized by one main stem or trunk of at least six inches d.b.h. , or a multistemmed trunk system with a definite crown, maturing at a height of at least six feet above ground level . 24 . "Tree survey" means a drawing at a scale of at least one inch equals one hundred feet scale drawing which provides the following information: location of all trees having six inches or greater d.b.h. , or groves of trees, plotted by accurate techniques and the common or botanical name of those trees and their d.b.h. (Olympia 6/92) 460-8 16 .60 . 030--16 . 60 . 040 25. "Tree unit" means a unit of measurement based upon the size of the tree as set forth in Tables 16. 60 .080A and B of Section 16. 60.080 . 26. "Undeveloped' means a parcel of land on which no buildings or other facilities are located. 27 . "Urban forestry' means the use of state of the art techniques to preserve or enhance trees on public and private lands as they transition from natural areas into an urban environment . This will include site design strate- gies and construction and planting techniques which incor- porate best management practices . 28 . "Windfirm" means a tree which is capable of with- standing windstorms . 29 . "Worksite" means any contiguous area owned and operated as one development unit upon which earth disturb- ing activities are planned or underway. (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 030 Applicability. A. No person or represen- tative, directly or indirectly, shall engage in any land clearing or otherwise remove, relocate to another site, or destroy any tree, within the city, without first obtaining approval of a tree protection and replacement plan and obtaining a tree removal permit as provided in this chap- ter, unless the activity is exempted in Section 16 .60 . 040 . B. This chanter prohibits tree removal on undeveloped property unless allowed in a building or new development permit and requires tree planting when a site to be devel- oped does not meet the minimum tree density herein created. C. A tree protection and replacement plan and tree removal permit for removal of one or more trees is required for any development which requires permit approval (build- ing, grading, planned residential development, planned unit development, subdivision, short plat, townhouse, site plan review, conditional use penults, variance, shoreline condi- tional use, shoreline substantial development, shoreline variance and environmental determinations) . (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 040 Exemptions . The following activities are exempt from the tree removal permit requirements . However, these exempt activities shall comply with all other appli- cable regulations . In no case shall any landmark tree be removed without first obtaining a tree removal permit pur- suant to Chapter 16 .56 . A. Agriculture. Lands from which the removal of trees is shown to be necessary for bona fide agricultural use . B. Commercial Nurseries or Tree Fauns . Only those trees which are planted and growing on the premises of a 460-9 (Olympia 6/92 ) 16 . 60 . 050 licensed retailer or wholesaler for sale to the general public . C. Emergencies. Necessary measures may be taken to protect public safety or private or public property from imminent danger and to respond to emergencies declared by the city, county, state or federal governments. Such emer- gencies may include a windstorm, mud slide, flood, freeze, dangerous and infectious insect infestation or disease, or other disaster. D. Firewood Cutting. Firewood cutting is allowed if the site will remain at or above the minimum site density standard herein established. E. Forest Practices Permit . Tree harvesting allowed under a forest practices permit issued by the Washington State Department of Natural Resources, which under state law preempts regulation by the city. F. Hazard Trees . Tree trimming, removal or trans- planting performed by, or on behalf of, the city, other governmental agencies or public utilities in order tc pro- tect public safety or private or public property from immi- nent damage. This may include trees that are dying, dead, structurally unsound, or diseased to the point that resto- ration to sound condition is not practical, or that the ,'• disease can be expected to be transmitted to other trees and to endanger their health, as determined by a qualified professional forester. G. Nominal Activity. For developed single-family and duplex residential properties, a tree protection and re- placement plan and tree removal permit is not required if the site will remain at or above the minimum site density standard herein established or if no tree removal is pro- posed. H. Subdivisions . Individual lots within a subdivi- sion are exempt when the requirements of this have been complied with by the subdivider as follows : (i) the subdi- vision includes an open space tract or coiiuuon area which contains the required tree density for the entire subdivi- sion; (ii) the trees within these tracts are protected with conditions, covenants or restrictions; and, (iii) the pro- tecting covenants, conditions and restrictions are identi— fied on the recorded plat map. I . Minimal Removal . Removal of up to six trees from an undeveloped parcel within any twelve consecutive month period unless said trees are covered by an existing tree plan issued pursuant to this chapter or unless such removal places the parcel below the minimum density required here- in . (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 050 Tree protection and replacement plan re- quired. A. Requirement Established. Except for the ex- ceptions enumerated in Section 16 . 60 . 040 above, no person (Olympia 6/92 ) 460-10 16 . 60 . 050 shall remove, transplant or destroy, or cause to be re- moved, transplanted or destroyed, on any land in the city, any tree six inches or greater d.b.h. , without first ob- taining the director's approval of a tree protection and replacement plan and receiving a tree removal permit from the city. For sites proposed for land development having trees below the minimum density, even though no trees are proposed to be removed, a tree protection and replacement plan is required to bring the site up to the minimum site density standard herein established. B. Application and Fee. A person seeking a tree removal permit must submit a tree protection and replace- ment plan to the department of public works and pay a nonrefundable permit fee. Tree applications shall be made on foims to be prescribed and furnished by the city. The permit review fee is to based upon the actual costs of reviewing the tree protection and replacement plan as set forth in the city permit fee schedule. C. Submittal of a Tree Protection and Replacement Plan. Applicants may discuss development alternatives with a qualified professional forester or city staff in advance of preparing initial site plans . The director may review development concepts and provide appropriate tree preserva- tion educational materials to the applicant. Approval of the tree protection and replacement plan and tree removal peLmit shall occur before removing or transplanting any tree. Where the site proposed for development requires site plan or plat review, the tree protection and replace- ment plan and the application for a -tree removal permit shall be submitted concurrent with a site plan or plat application. In designing a project, the applicant must retain trees which are healthy and vigorous, wind-fiim, not hazmful to utilities and which at maturity are a size ap- propriate to the location. (See Section 16.60 . 070 of this chapter for retention priorities . ) D. Tree Protection and Replacement Plan Requirements . Attached to the applicant information and site plan infor- mation required for the development proposal, the applicant shall include the following tree protection and replacement plan infoLmation when applying for a tree removal permit issued under this chapter: 1 . A Tree Survey. For all development proposals a tree survey, drawn to scale, identifying the location of existing trees and containing the following information, as applicable: a. Common or botanical name of each tree; b. Trees proposed to remain, to be transplanted and to be removed; c. Landmark trees; 460-11 (Olympia 6/92 ) 16 . 60 . 050 d. Groves (trees standing in close proximity, which form a continuous canopy) with indication of predomi- nant species, estimated number and average size; e. Any off-site tree which could be adversely affected by the proposed activity; f . The location and dimensions of established and proposed buffers, natural vegetation easements and open space areas for public, private or community use; g. Buildable areas; h. Protected areas; and i . Limits of construction line. 2 . A Grading Plan. When the proposed development requires a grading plan as specified in Chapter 16 .48, the following information shall be included on the grading plan: a. A statement in the detailed plans describing how trees intended to remain will be protected during de- velopment; b. The location and dimensions of areas to be cleared, grubbed, graded, filled, excavated or otherwise disturbed; c. A general grading plan with proposed grade changes adjoining or within the critical root zone; d. Trees to be retained; e. The protected areas, the buildable areas and the limits of construction line; and f . A statement that all trees being retained will be identified by some method, such as painting, flag- ging, etc. , and, where protective barriers are necessary, that they will be erected before work starts (see Section 16 . 60 . 090) . 3 . Proposed Tree Plan. A survey, drawn to scale, identifying the proposed tree plan for the property includ- ing trees to be retained and the trees that are to be planted. The applicant is also required to calculate the site tree density with a detailed explanation including the number, size and species . 4 . Additional Information. Any additional or more detailed information required by the director to ensure compliance with the provisions of this chapter. E. Residential Development Containing Five or More Units . Commercial and Industrial Zoning Districts . For single-family development, subdivisions and multifamily residential developments containing five or more units, commercial, industrial zoning districts, the permit appli- cant shall have a qualified professional forester: 1 . Prepare the tree survey and the tree protection and replacement plan enumerated in subdivisions 1, 2 and 3 of subsection D of this section; 2 . Propose steps to protect trees during the course of construction pursuant to Section 16 . 60 . 090; (Olympia 6/92 ) 460-12 16 . 60 . 060 3 . Calculate the proposed tree density factor indicating the total existing trees to be preserved and the replacement trees to be planted; 4 . Prepare a cost estimate for the proposed re- placement trees, the installation costs and the annual maintenance costs; 5 . Submit four copies of a topographical survey, if such survey is required by local or state law, other than this chapter, sealed by a registered engineer or reg- istered surveyor, containing all the information required in subdivision 2 of subsection of this section; 6 . Provide one aerial photograph of the site and any other additional information required by the director. F. The director may waive the requirements for a scaled drawing and other submission data if she/he finds that the infoLmation presented is sufficient to determine the project ' s compliance with the provisions of this chap- ter. (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 060 Tree protection and replacement plan review procedure. A. Departmental Review. The director shall review the tree protection and replacement plan and tree removal permit application to determine whether the appli- cant has provided all required information. Completed ap- plications shall be referred to appropriate city depart- ments for review. 1 . Notice of the tree removal peLluit application shall be posted by the city on the subject site for a peri- od of not less than ten days for single-family development, subdivisions and multifamily residential developments con- taining five or more units, and commercial and industrial zoning districts . 2 . Upon request of either the applicant or the city, the city may conduct field inspections or review meetings . City departments involved in the review shall submit their reports and recommendations to the director, who shall forward them to the appropriate approval authori- ty. B. Approval Authority . A qualified professional forester shall review the proposed tree protection and replacement plan and the application for the tree removal permit to determine whether the standards required within this chapter have been met by the applicant . The qualified professional forester shall forward a recommendation to the city official who is responsible for approving the proposed development and granting or denying the application for a tree removal permit as follows: 1 . Where site plan review or plat approval by the hearing examiner is not required by city ordinance, the approval of the tree protection and replacement plan and the granting or denial of the tree removal peLmit shall be 460-13 (Olympia 6/92 ) 16 . 60 . 060 the responsibility of the director. Decisions of the di- rector may be appealed to the hearing examiner. 2 . Where the site is proposed for development necessitating site plan review and plat approval by the hearing examiner, the hearing examiner shall be responsible for approving the tree protection and replacement plan and granting or denying approval of the application for a tree removal permit (subject to affirmation, reversal or modifi- cation by the city council on a appeal with respect to plat approvals) . 3 . In granting or denying a permit the responsible city official shall consider the reconunendation of the qualified professional forester and the standards enumerat- ed in Section 16 .60 .070 . C. Permit Issuance. I . Within ten working days of the receipt of a tree protection and replacement plan, a complete tree re- moval permit application and a copy of any associated de- velopment applications for projects requiring only staff review, and within fifteen working days for projects re- quiring evaluation by consulting specialists, the director shall make every effort to review the proposed activity for conformance with the provisions of this chapter, confer 'with other affected departments and needed specialists, and take one of the following actions : a . Approve the tree protection and replacement plan and issue a tree removal permit ; b. Inform the applicant that the permit will be issued concurrently with the associated development permit or approval; c . Return the application if the submission is incomplete and inform the applicant of the deficiencies; d. Approve the tree protection and replacement plan and tree removal permit with conditions as necessary to fulfill the provisions of this chapter; or e. Deny the permit, indicating in writing the deficiencies or reasons for denial and the procedure for submitting a revised tree protection and replacement plan and tree removal permit application. 2 . The director may require an evaluation by a qualified professional forester, engineer, soils engineer, testing lab, or other specialist, at the applicant' s ex- pense, at any time during the tree protection and replace- ment plan review process or tree removal permit inspection as necessary to ensure compliance with the provisions of this chapter and/or the terms of the tree removal permit . D. Approval of Tree Protection and Replacement Plan and Granting of a Tree Removal Permit . Whenever a tree protection and replacement plan is approved and application for a tree removal permit is granted, the reviewing author- ity shall : (Olympia 6/92 ) 460-14 16 . 60 .060 1. Conditions. Attach conditions considered nec- essary by the reviewing authority to ensure the intent of this chapter will be fulfilled. This includes adjustment of the limits of construction to insure survival of trees designated to be retained; and, 2 . Completion of Operations. Fix a reasonable time to complete tree removal operations. All tree protec- tion and replacement plan activities regulated by this chapter shall proceed continuously or in approved phases in an expeditious manner unless halted by unfavorable weather or a stop work order. In no case shall more than one hun- dred eighty days lapse between inspections. E. Public Notice. If the approval authority approves the tree protection and replacement plan or grants a tree removal permit, notice of the decision shall be mailed to the applicant and be posted by the city on the subject site for a period of ten working days, during which there shall be no tree removal work done. No tree removal work shall be done during the notice periods or when appeals are pend- ing disposition. Residential projects containing one to four units shall be exempt from the public notice recruire- ments herein. F. Permit Duration. A permit issued under this chap- ter shall be valid for one hundred eighty days or the dura- tion of the associated development permit or approval, whichever is greater. The director may authorize a one hundred eighty day extension or permit extensions consis- tent with those extensions allowed under the associated development permit or approval . The director may require additional conditions in conjunction with a permit exten- sion if necessary to ensure compliance with the provisions of this chapter. G. PeLmit Amendments . The permittee may request and the director may approve a minor amendment to an approved permit at any time. In addition, the director may require reasonable project modifications to protect drainageways, environmentally sensitive areas, and adjoining property and structures from damage or to alleviate hazardous condi- tions . H. Display of Permits and Inspection. 1 . Posting Property/Obligation of Person (s) Performing Work. Work regulated by this chapter shall not commence until the appropriate permits have been posted on the worksite in a conspicuous location. The notice shall remain posted until the director accepts the work as com- plete. Every contractor or other person performing or directing the perfoLmance of any work requiring a permit under this chapter shall have a duty to be familiar with and comply with the relevant teLms and conditions of the peLmit and any associated plans and specifications . 2 . Inspections . 460-15 (Olympia 6/92 ) 16 . 60 . 060 a. The director shall have right of entry to the work site for the purposes of performing the inspec- tions authorized in this chapter and taking action as re- quired to enforce the provisions of this chapter and to protect public safety, adjoining properties and environ- mentally sensitive areas . b. The director shall conduct inspections as necessary to ensure compliance with this chapter, approved plans and the terms of permits. The director shall, as applicable, conduct inspections at the following project stages unless s/he determines that fewer or more inspec- tions are necessary considering the scale and nature of the project, site conditions or the proximity to an environ- mentally sensitive area: i . After the submission of a tree protection and replacement plan and before the issuance of a permit; ii . Upon installation of tree protection barriers in accordance with Section 16 . 60.100; iii. Upon completion of the permitted activ- ity and installation of any required restorative or re- placement landscaping; iv. Prior to release of a maintenance surety for required replacement landscaping; and v. In no case shall more than one hundred eighty days lapse between inspections . 3 . Upon completion of the inspection, the director shall either approve the work or notify the permittee in writing as to the nature of the violation or deficiency and specify the compliance time . 4 . The permit grantee shall allow city representa- tives to enter and inspect the premises at any reasonable time . Failure to allow inspection shall constitute a vio- lation of this chapter. I . Surety . For residential developments containing five or more units, and projects within commercial and industrial zoning districts the following surety will be required. 1 . Performance Surety. To insure completion of the tree protection and replacement plan and compliance with the conditions of a tree removal permit granted pursu- ant to this section, the approval authority shall require that the applicant post a bond, cash escrow, irrevocable letter of credit, or other financial instrument approved by the city attorney in a face amount equal to one hundred twenty-five percent of the estimated cost to obtain and plant the trees required by said plan if the total value of said trees exceeds one thousand dollars . The estimated value of trees shall be subject to approval of the direc- tor. The director may also require such a surety in an amount s/he deems reasonable and necessary to ensure com- pletion of other permitted work in accordance with the (Olympia 6/92 ) 460-16 16 . 60 .070 terms of the tree removal permit . The city will draw upon these funds as. necessary to do the following if the appli- cant/permittee fails to do so within the time period speci- fied by the director, to remedy violations to the plan or the permit: a. To complete the project in compliance with the terms of the plan or permit; b. To remedy any damage to public streets, utilities and property caused by the applicant/permittee in meeting the terms and conditions of the tree protection and replacement plan and tree removal permit; and c. To alleviate hazardous conditions resulting from the applicant/permittee's performance of work pursuant to the tree protection and replacement plan and tree re- moval permit . 2 . Any surety required under this chapter shall be in addition to any other surety required by the city for the project . The surety required through this chapter may not be released without the director's authorization. 3 . If the city deems it necessary to expend all or part of the surety, the director may issue a stop work order on the project until the applicant/permittee reestab- lishes sufficient surety, as determined by the director, to ensure completion of the project in accordance with the telms of the plan or the permit. This authority does not limit the general authority provided in Section 16 . 60 .140 of this chapter to impose stop work orders . 4 . If the cost of remedial work exceeds the surety amount, the city may place a lien upon the property for the amount of the additional costs . 5 . The surety shall be released upon the direc- tor' s acceptance of the completed work. (Ord. 5248 ' §11 (part) , 1991) . 16 . 60 . 070 Review standards for tree protection. The following standards shall govern the approval of a tree protection and replacement plan and the granting or denial of an application for a tree removal permit : A. Developmental Alternatives . Preservation and conservation of wooded areas, trees, similar woody vegeta- tion and related natural resources and processes shall have priority over development when there are feasible and pru- dent location alternatives on site for proposed building structures or other site improvements . B. Tree Removal . Tree removal and clearing shall be limited to designated street rights-of-way, drainage and utility areas and areas necessary for the construction of buildings, structures or other site improvements . Clearing for roads and utilities shall be the minimum necessary to accomplish the engineering designs and shall be restricted to designated rights-of-way unless otherwise approved by 460-17 (Olympia 6/92 ) 16 . 60 .070 the director based upon a demonstrated need and permission of the affected landowner. C. Design. Development shall be designed, located and conducted so as to minimize the loss of healthy stands of trees as identified by a qualified professional forest- er, degradation of wildlife habitat as identified through environmental review, and the potential for erosion and slope failure. D. Phasing. Tree removal operations shall be con- ducted so as to expose the smallest practicable area of earth to erosion for the least possible time. If the pro- ject is phased, tree removal shall be phased accordingly (i . e. , for tracts which require preliminary plat approval, the tree protection and replacement plan will limit tree removal to only those areas which will allow the construc- tion of streets, utilities, stormwater drainage facilities and other such community facilities . ) E. Retention Priority. In designing a project, the applicant shall retain the following, in the following order of priority, unless it would make reasonable use of the property allowed under the zoning impractical or impos- sible: 1 . Landmark trees; 2 . Trees along or upon slopes greater than fifteen percent, and in areas with highly erodible soils, and along drainageways and water bodies where they serve to stabilize soils and retard erosion and sedimentation; 3 . Stands of healthy trees which form a continuous canopy and/or are mutually dependent, as identified by a qualified professional forester; 4 . Trees which provide wildlife habitat as identi- fied through environmental review; 5 . Trees which are unusual due to their size, age or rarity; 6 . Healthy, windfirm trees bordering public rights-of-way; 7 . Trees sheltering interior trees or trees on adjacent property from strong winds that could otherwise cause them to blow down; 8 . Trees which separate incompatible uses or re- . duce sound and wind levels. F. Compliance With Statutes and Ordinances . Imple- mentation of this chapter may be coordinated with other city, state or federal statutes and ordinances. 1 . To ensure that tree removal or land clearing activity regulated by this chapter is carefully coordinated with the development or use of a parcel, the applications for tree removal and development permits and/or approvals shall be submitted and processed concurrently. A permit required under this chapter may be issued concurrently with approval of one or more of the following: (Olympia 6/92 ) 460-18 16 . 60 . 070 a. Engineering permit; b. Building permit; c. Preliminary or final plat or short plat; d. Binding site plan; e. Conditional use permit or variance; f . Shoreline substantial development permit; g. Planned residential development or planned unit development; h. Design review; or i. Project within the public right-of-way or an approved utility extension. 2 . The director shall coordinate the review of the project with affected departments and agencies . Conditions or requirements recouuuended or required by other depart- ments and agencies shall be reflected, as appropriate, in the terms of the permit . 3 . Tree removal authorized under this chapter shall be consistent with all other applicable programs, regulations and ordinances, including, but not limited to, the shoreline master program, the stormwater control manu- al, and the Uniform Building Code. Whenever conflicts exist between this chapter and federal, state, or local laws, ordinances or rules, the more restrictive provisions shall apply. 4 . Issuance of a permit under this chapter does not exempt the pezmittee from procuring and complying with other required permits or approvals . G. Limitation. Tree removal shall be limited to instances where : 1 . Necessary for a building, structure or other site improvement, and the permit applicant has shown there is no location alternative on-site for a proposed building, structure or other site improvement; or 2 . The tree is diseased, damaged or in danger of falling, is located too close to existing or proposed buildings or structures, interferes with existing or pro- posed utility service or drainage, creates unsafe vision clearance or does not conform to other city ordinances or regulations; 3 . Upon demonstration by the applicant, consistent with sound site planning, forestry and landscape practices, that all or part of the existing trees considered for pres- ervation are impractical or unsuitable, the approval au- thority may approve a binding proposed tree plan, which in the approval authority's judgment will provide tree cover that will serve the purposes of this chapter as well as or better than the existing trees . H. Thinning. Stands of trees may be thinned, based upon the recommendation of a qualified professional forest- er, to remove dead or diseased trees, or to accommodate outdoor recreational activities or essential site facili- 460-19 (Olympia 6/92 ) 16 .60 .070 ties, provided that the integrity and safety of the stand is not diminished. I. Replacement Evaluation. The approval authority shall evaluate the applicant's proposed tree protection and replacement plan, including grading plan and landscape plan, confirm or identify trees to be retained, and specify any special precautions that must be taken to ensure the survival of the trees . In making this evaluation, the approval authority shall consider, as appropriate, the site's soil conditions, topography and drainage; each tree's condition, stability, size and location; each tree's function in retarding erosion and sedimentation, reducing runoff and stabilizing slopes; and each tree's importance to the character of the surrounding area and habitat value. The approval authority shall also consider the ability of the tree to survive the construction phase and coexist with the proposed development considering potential public safe- ty risks, proximity to existing and proposed structures and other improvements, and potential interference with utility lines, septic tanks, drainfields, sidewalks, streets, traf- fic, solar access, gardens and other development . J. Environmentally Sensitive Areas . The approval authority shall restrict activities and/or impose condi- tions as warranted, to protect environmentally sensitive areas and their associated buffers, water quality, property or public safety. This may include the prohibition or restriction of land clearing and tree removal operations up-slope from streams, wetlands, water bodies, and other environmentally sensitive areas where such activities would result in damage to the sensitive area . K. Alternative Compliance . All tree removal permit activities regulated by this chapter shall be performed in compliance with the applicable standards contained in this chapter, unless the applicant demonstrates that alternate measures or procedures will be equal or superior to the provisions of this chapter in accomplishing the purposes of this chapter. L. Modifications to the Site Plan. The approval authority may require modifications to the site plan or subdivision to accommodate stands of trees or individual trees consistent with the provisions of this chapter and the reasonable use of the property . The approval authority may require that all or part of the trees required for retention or replacement be located along public rights-of- way and/or site boundaries to help minimize potential land use conflicts, or to serve other purposes of this chapter. The approval authority shall only require retention of trees near structures and along rights-of-way based upon the recommendation of a qualified professional forester indicating that the trees are healthy and not prone to wind (Olympia 6/92 ) 460-20 16 . 60.080 throw, or pose a negligible risk to property and public safety. M. Timeline. The approval authority shall set a deadline for the installation of replacement trees and will require a financial surety as provided in Section 16. 60.100 . (Ord. 5248 §11 (part) , 1991) . 16 . 60 .080 Tree protection and replacement recuirement --Transition to urban forestry. A. Minimum Tree Density Requirement Established. A minimum tree density is re- quired in the buildable area of each site. The tree densi- ty may consist of existing trees, replacement trees or a combination of existing and replacement trees . The site density of trees to be protected on each site shall be determined prior to approval of a tree protection and re- placement plan or tree removal permit, by the approval authority . B. Tree Density Calculation. The minimum tree densi- ty factor required for each site is fifteen tree units per acre. To calculate the density of trees to be protected: 1 . Measure the stem diameter of each protected tree 4 .5 feet above the ground line. This is called diame- ter at breast height (DBH) and is measured in inches . 2 . Go to Table 16. 60 .080A and select the tree unit value that corresponds to the DBH for each protected tree. Example : A twenty-inch DBH tree has a tree unit value of 2 .2 . 3 . Add up the tree unit values for all protected trees and divide by the total acreage of the buildable area. This value must be greater than fifteen tree units per acre. If the total is less than fifteen tree units per acre, more trees must be protected or replacement trees will be required. C. Replacement Tree Requirement . If existing trees are inappropriate or inadequate to meet the minimum of fifteen tree units per acre, a sufficient number of re- placement trees shall be planted to meet the minimum re- quirement . To determine the total number of replacement trees required, refer to Table 16 . 60 . 080B. 1 . Replacement trees are measured differently than protected trees . Instead of measuring DBH as in protected trees, replacement trees are measured by caliper in inches . Caliper on replacement trees is measured six inches above the ground line for four inches and smaller trees, and twelve inches above the ground for larger replacement trees . 2 . Go to Table 16 . 60 . 080B and select the tree unit value that corresponds to the caliper for each replacement tree. 460-21 (Olympia 6/92 ) 16 . 60 .080 Example: A two-inch caliper tree has a tree unit value of 0 .5 . 3 . Add up the tree unit values for all replacement trees to determine how many of that size tree will be re- quired to achieve the minimum site density. Example: If there are no trees or the trees are not appropriate for protection on a one acre site and the se- lected replacement trees were two-inch caliper, then thirty replacement trees must be planted. D. Replacement Tree Quality. Replacement trees shall be State Department of Agriculture Nursery Grade No. 1 or better and must be approved by the city prior to planting. Replacement trees must be staked, fertilized and mulched. E. Replacement Tree Location. 1. City Approval Required. The applicant' s pro- posed location of transplanted or replacement trees shall be subject to city approval as part of the tree protection and replacement plan. 2 . Location on Site. To the extent feasible and desirable, trees shall be relocated or replaced on-site . 3 . Relocation_ or Replacement Off-site. Where it is not feasible to relocate or replace trees on-site, relo- cation or replacement may be made at another approved loca- tion in the city. 4 . City Tree Fund. Where it is not feasible to relocate or replace trees on site or at another approved location in the city, the tree removal permit pelmittee shall pay into the city tree account an amount of money approximating the current market value of the replacement treesthat would otherwise be required. The city shall use the city tree account for the purpose of acquiring, main- taining and preserving wooded areas and for planting and maintaining trees within the city . (Olympia 6/92 ) 460-22 16 .60 . 080 TABLE 16.60 .080A EXISTING TREES TO REMAIN (Conversion from diameter (DBH) to tree units for trees protected on site) DBH" Tree Units DBH" Tree Units DBH" Tree Units 1-4 .1 22 2 .6 37 7 .5 5-7 .3 23 2 .9 38 7.9 8-9 .5 24 3 .1 39 8.3 10 . 6 25 3 .4 40 8 .7 11 .7 26 3 .7 41 9 .2 12 . 8 27 4 .0 42 9 . 6 13 . 9 28 4 .3 43 10 . 1 14 1 . 1 29 4 .6 44 10 . 6 15 1 . 2 - 30 4 .9 45 11 . 0 16 1 .4 31 5.2 46 11 .5 17 1 . 6 32 5 . 6 47 12 . 0 18 1 . 8 - 33 5 .9 48 12 . 6 19 2 . 0 34 6 .3 49 13 .1 20 2 .2 35 6.7 50 13 . 6 21 2 . 4 36 7 .1 460-23 (Olympia 6/92 ) 16 . 60 .090 TABLE 16 . 60 . 080B REPLACEMENT TREES (Conversion from caliper inches to tree units for replacement trees) Caliper Units Caliper Units 1 .4 8 1.3 2 .5 9 1 .5 3 . 6 10 1 .7 4 .7 11 1 . 9 5 . 9 . 12 2 .1 6 1. 0 13 2 .3 7 1 .2 14 2 .5 (Ord. 5248 §11 (part) , 1991) _ 16 . 60 . 090 Tree protection during construction. Prior to initiating tree removal on the site, trees to be pre- served shall be protected from potentially damaging activi- ties as follows unless otherwise approved by the approval authority consistent with accepted urban forestry, land- scape and horticultural practices . A. Placing Materials Near Tree . No person may con- duct any activity within the protected area of any tree designated to remain, including, but not limited to, park- ing equipment, placing solvents, storing building material and soil deposits, dumping concrete washout and locating burnholes . B. Attachments to Trees . During construction, no person shall attach any object to any tree designated for protection. C. Protective Barrier. Before development, land clearing, filling or any land alteration for which a tree removal permit is required, the applicant : 1 . Shall erect and maintain readily visible pro- tective tree fencing along the outer edge and completely surroundinc the protected area of all protected trees or groups of trees . Where possible, an area twice the circum- ference of the critical root zone of large conifers to be retained should be protected to minimize the potential for wind throw. Fences shall be at least four feet high; 2 . May be required to cover with mulch to a depth of at least four inches or with plywood or similar material (Olympia 6/92 ) 460-24 16. 60 . 090 the areas adjoining the critical root zone of a tree in order to protect roots from damage caused by heavy equip- ment; 3 . Shall prohibit excavation or compaction of earth or other potentially damaging activities within the barriers; 4 . May be required to minimize root damage by excavating a two foot deep trench to cleanly sever the roots of trees to be retained; 5 . Shall keep the protective fencing in place until the city authorizes the removal or issues a final certificate of occupancy, whichever occurs first. Protec- tive tree fencing shall be constructed of wood, metal or other substantial material; and 6. Shall ensure that any landscaping done in the protected zone subsequent to the removal of the barriers shall be accomplished with light machinery or hand labor. D. Grade. 1 . The grade shall not be elevated or reduced within the critical root zone of trees to be preserved without the director's authorization. The director may allow coverage of up to one half of the area of the tree's critical root zone with light soils (no clay) to the mini- mum depth necessary to carry out grading or proposed tree plan, if it will not imperil the survival of the tree. Aeration devices may be required to ensure the tree's sur- vival . If required, the cost of the aeration devices shall not exceed the cost of removing the tree and replacing it with a tree (s) of comparable unit value as determined pur- suant to Tables 16 . 60 . 080A and B. 2 . If the grade adjacent to a preserved tree is raised such that it could slough or erode into the tree' s ' critical root zone, it shall be permanently stabilized to prevent suffocation of the roots . 3 . The applicant shall not install an impervious surface within the critical root zone of any tree to be re- tained without the authorization of the director. The director may require specific construction methods and/or use of aeration devices to ensure the tree's survival and to minimize the potential for root induced damage to the impervious surface. 4 . To the greatest extent practical, utility trenches shall be located outside of the critical root zone of trees to be retained. The director may require that utilities be tunnelled under the roots of trees to be re- tained if s/he determines that trenching would significant- ly reduce the chances of the trees survival . If required, the cost of the trenching or the tunnelling shall not ex- ceed the cost of removing the tree and replacing it with a tree(s) of comparable unit value as determined pursuant to Tables 16 . 60 . 080 A and B. 460-25 (Olympia 6/92) 16 . 60 .100 5. Trees and other vegetation to be retained shall be protected from erosion and sedimentation. E. Directional Felling. Directional felling of trees shall be used to avoid damage to trees designated for re- tention. F. Additional Requirements . The approval authority may require additional tree protection measures which are consistent with accepted urban forestry practices. (Ord. 5248 §11 (part) , 1991) . 16 . 60 .100 Maintenance requirements. A. Maintenance Requirement. The term "maintenance requirement" as used in this chapter shall •be defined as follows: The property owner shall be responsible for the regular care and mainte- nance of all trees in the approved tree protection and replacement plan. Trees are to be maintained in a vigorous and healthy condition, free from diseases, pests and weeds . This maintenance shall include feeding, watering, fertil- ization, pruning or other needed maintenance, in accordance with generally accepted arboricultural practices. Trees which become diseased, severely damaged or which die shall be removed by the owner as soon as possible but no later than sixty days after notification by the city. All trees removed under this section shall be replaced with a healthy tree of the same size and species as required by the ap- proved tree protection and replacement plan for the proper- ty. B. Applicability of Maintenance Requirement . The maintenance requirement shall apply as follows : 1 . Residential Property Owners--Single-family and Multifamily Developments--One to Four Units . The mainte- nance requirement shall not apply to owners of residential property that is classified as single-family or multifamily and located in a development of one to four units or to open space or common areas within such developments . 2 . Areas Dedicated as Open Space or Conunon Areas in Single-family Residential Developments that Exceed Four Units . a . For areas dedicated as open space or conuuon area in a single-family residential development that ex- ceeds four units, the tree protection and replacement plan and the maintenance requirement of this section shall be in effect for three years from the date the final plat approv- al is issued for the project . The tree plan shall be a condition of approval identified on the face of the plat . The applicant shall also execute a covenant in a form agreeable to the city which shall require the applicant and his successors to comply with the maintenance requirement of this section. The covenant shall obligate both the property owner and the homeowner' s association, if one is (Olympia 6/92 ) 460-26 16. 60 . 100 formed. The covenant shall be recorded by the county audi- tor. The recording fee shall be paid by the applicant . b. In any single-family residential development in excess of nine units, the covenant specified in para- graph a of this subdivision shall include a requirement that the property owners form a homeowner's association for the purpose of carrying out the provisions of the tree protection and replacement plan and the maintenance re- quirement of this section. 3 . Multifamily Residential, Couunercial, Industrial Developments . For all trees covered by the tree protection and replacement plan, the maintenance requirement shall apply in perpetuity to developments that are multifamily residential developments in excess of four units, commer- cial and industrial . The applicant shall execute a cove- nant in a form agreeable to the city which shall require that the applicant and his successors comply with the main- tenance requirement imposed by this section. The covenant shall be binding on successor property owners and owners ' associations . The covenant shall be recorded by the county auditor. The recording fee shall be paid by the applicant . C . Maintenance Agreement . 1 . Each development listed in subsection B of this section to which• the maintenance requirement of this chap- ter applies shall also be subject to a maintenance agree- ment . The director shall require the applicant to execute a maintenance agreement with the city, in a foam acceptable to the city attorney, which shall include the provisions of the maintenance requirement in this chapter, to ensure the survival of trees located in each development and to ensure compliance with the tree protection and replacement plan. 2 . The maintenance agreement for developments that are multifamily residential in excess of four units, com- mercial and industrial developments shall be accompanied by a surety document (bond, cash, letter of credit or similar document) approved by the city attorney. The surety docu- ment shall have a face amount equal to one hundred twenty- five percent of the estimated amount necessary to guarantee the maintenance and replacement of trees in conformance with the maintenance requirement and authorized tree pro- tection and replacement plan for a period of three years from the date the certificate of occupancy is issued by the city for the project or from the date of final plat approv- al as the director determines is appropriate. 3 . Any surety required under this section shall be in addition to any other surety required by the city for the project . The surety required through this section may not be released without the director's authorization. If the cost of remedial work exceeds the surety amount, the city may place a lien upon the property for the amount of the additional costs . If the city expends all or part of 460-27 (Olympia 6/92 ) 16 . 60 .110 the surety, the director may require that the appli- cant/permittee reestablish sufficient surety, as determined by the director, to ensure that the conditions of the tree protection and replacement plan and the maintenance re- quirements are met . The surety shall be released upon the passage of a maintenance inspection by the director three years from the date a certificate of occupancy is issued by the city. 4. Table 16 . 60 .100 sets forth a summary of the projects that require a maintenance agreement and a surety document pursuant to this section. Table 16 . 60 . 100 Type of Development Maintenance Bonding Agreement Residential 1 to 4 units No No Short plats 5 to 9 Yes - 3 years No units - Single-family Common areas only homes Long plats 10 units or Yes - 3 years - No more - single-family Common areas only homes Home owners associa- tions Multifamily - 5 units or Yes - Perpetuity Yes more Industrial Yes - Perpetuity Yes Commercial Yes - Perpetuity Yes D. Failure to maintain . Failure to regularly main- tain the trees as required in this section shall constitute a violation of this chapter and, if applicable, the plat covenant . (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 110 Variance for hardship . A. Authority Es- tablished. The approval authority may grant variances from these detailed regulations when undue hardship may result from strict compliance. B. Conditions to be Prescribed. In granting any variance, the approval authority shall prescribe conditions deemed necessary or desirable for the public interest . C . Findings . No variance shall be granted unless the approval authority finds that all of the following circum- stances exist : 1 . The there are special circumstances or condi- tions affecting the property such that the strict applica- (Olymcia 6/92 ) 460-28 16 . 60 .120 tion of the provisions of this chapter would deprive the applicant of the reasonable use of her/his land; 2 . That the variance is necessary for the preser- vation and enjoyment of a substantial property right of the petitioner; 3 . That the variance will further the objectives and policies of this chapter. Innovative tree protection management practices designed to address the requirements of this chapter which enhance the quality and character of the trees and maintain the desired tree density on the site are encouraged. Innovative practice proposals shall be judged on technical merit, the degree to which they meet the intent of this chapter, the advantages over standard practices, and the anticipated maintenance requirements . Innovative practice proposals may be reviewed and approved by the approval authority. (Ord. 5248 §11 (part) , 1991) . 16 . 60 .120 Appeal--Modification. A. Any condition required herein by any provision of this chapter may be appealed to the hearing examiner, if it is a decision of the director, or to the city council, if it is a decision of the hearing examiner. An appeal must be filed in writ- ing, within the ten day period following the granting or. denial of the permit . The appeal shall be accompanied by a statement setting forth in detail the reasons for the ap- peal and proposed modifications to the tree protection and replacement plan. Appeals shall be processed according to the procedures specified in Chapter 18 .71 of this code. The timely filing of an appeal shall have the effect of suspending the issuance of a peiiuit pending the outcome of the appeal . B. On appeal, no modification to the tree protection and replacement plan or tree removal permit shall be grant- ed which would have the effect of granting a special privi- lege not shared by other property in the same vicinity. To grant a modification, the appeal authority must find that all of the following conditions apply: 1 . There are exceptional or extraordinary circum- stances or conditions which apply to the land referred to in the tree protection and replacement plan which do not apply generally to all lands in the vicinity. These in- clude, but are not limited to, size, shape, topography, location or surroundings ; 2 . The granting of the modification to the tree protection and replacement plan is necessary for the pres- ervation and enjoyment of substantial property rights of the appellant ; 3 . The granting of the modification to the tree protection and replacement plan will not, under circum- stances of the particular case, affect adversely the health or safety of persons residing or working in the neighbor- 460-29 (Olympia 6/92 ) 16 . 60 .130 hood of the property referred to in the tree plan and will not be detrimental to the public welfare or injurious to property or improvements in the neighborhood or adversely affect the comprehensive plan. (Ord. 5248 §11 (part) , 1991) . 16 . 60 .130 Enforcement--Penalties . A. Authority. It shall be the duty of the director of public works to admin- ister the provisions of this chapter. The director shall have authority to issue permits, impose conditions, enforce the provisions and requirements of this chapter and permits issued thereunder, and establish administrative procedures and guidelines, conduct inspections, and prepare the foiuus necessary to carry out the purposes of this chapter. B. Authorized Actions . In addition to other reme- dies, the city may bring injunctive, declaratory or other actions to enforce this chapter. C. Stop Work Orders/Permit Revocation. 1 . The director shall suspend work or revoke a peiiuit, as appropriate, if s/he finds that : a . The work is not authorized by a valid per- mit; b. Inaccurate information was used to obtain -t- the permit; c . The peimittee is not complying with the terms of the permit or approved plans ; d. The work is, in the director's judgment, a hazard to property or public safety, is adversely affecting or about to adversely affect adjacent property or rights- of-way, a drainageway, watercourse, environmentally sensi- tive area or stoLmwater facility, or is otherwise adversely affecting the public health, safety, or welfare; e . Adverse weather is causing significant prob- lems on or off site; or f . The required project surety has been expended to the point that it no longer provides assurance of the completion of the project in compliance with the terms of the permit. 2 . The director shall issue the permittee/violator a written notice specifying the nature of the violation or - problem which must be remedied prior to resuming other work on the project . If the peLmittee does not comply with the order within the time specified, the director, as an alter- native to other remedies, may enter the project site and perform the required work. All costs incurred by the city in perfoLming such work shall be drawn against the surety posted by the permittee to insure the enforcement of the provisions of the tree protection and replacement plan or the tree removal permit . In the absence of sufficient surety, the city may place a lien against the property in (Olympia 6/92 ) 460-30 16 . 60.130 � 'N • the amount of the funds expended to perform the required work. D. Restoration. Violators of this chapter or of a permit issued thereunder shall be responsible for restoring unlawfully damaged areas in conformance with a plan, ap- proved by the director, which provides for repair of any environmental and property damage, and restoration of the site; and which results in a site condition that, to the greatest extent practical, equals the site condition that would have existed in the absence of the violation(s) . E. Prohibition of Further Approvals. The city shall not accept, process, or approve any application for a sub- division or any other development permit or approval, or issue a certificate of occupancy for property on which a violation of this chapter has occurred until the violation is cured by restoration or other means accepted by the director and by payment of any penalty imposed for the violation . F. Civil Penalty. 1 . A person who fails to comply with the require- ments of this chapter or the terms of a permit issued here- under, who undertakes an activity regulated by this chapter without obtaining a permit, or fails to comply with a stop work order issued under this chapter shall also be subject to a civil penalty not to exceed five hundred dollars . Each day that a permit violation continues shall constitute a separate violation. In addition, each unlawfully de- stroyed tree shall constitute a separate violation. 2 . Any person who aids or abets in the violation shall be considered to have committed a violation for pur- poses of the civil penalty. 3 . The amount of the penalty shall reflect : a . The cost to remedy environmental and proper- ty damage resulting from the violation; b. All costs incurred by the city to enforce this chapter against the violator; and c . The number and extent of past violations of this chapter . 4 . Notice of penalty. A civil penalty shall be imposed by a notice in writing, by certified mail with return receipt requested, or by personal service. The notice shall describe the nature and date of the violation, and order the acts constituting the violation to cease and desist, and, when appropriate, require necessary corrective action within a specified time. 5 . Appeal . Any person incurring a penalty may, within ten days of the receipt of the notice of the penal- ty, apply to the hearings examiner in accordance with the procedure specified in Section 16 . 60 .100 . The hearings examiner may affirm, modify or reverse the penalty based on the provisions of this chapter. 460-31 (Olympia 6/92) 16 . 60 .140--16 . 60 . 150 6 . The provisions of this subsection shall apply to violations of this chapter in lieu of the provisions set forth in Chapter 16 .52 of this code. G. Public Nuisance. Any violation of the provisions of this chapter or a violation of a permit issued hereunder is declared to be a public nuisance and may be abated through proceeding for injunctive or similar relief in Superior Court or other court of competent jurisdiction. H. Violation--Misdemeanor. Any person who violates any provision of this chapter is guilty of a misdemeanor and is subject to a fine not exceeding five thousand dol- lars or jail time not exceeding ninety days or both such fine and jail time. (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 140 Liability on the city. Nothing in this chapter shall be deemed to impose any liability upon the city or upon any of its officers or employees, or to re- lieve the owner or occupant of any private property from the duty to keep in safe and healthy condition the trees upon their property or upon a public right-of-way over their property . (Ord. 5248 §11 (part) , 1991) . 16 . 60 . 150 Review of chapter by city council . This chapter will be reviewed by the city council no later than twelve months subsequent to its effective date to detellnine what, if any, modifications, additions or deletions are appropriate to carry out the purpose of the chapter. (Ord. 5248 §11 (part) , 1991) . (Olympia 6/92 ) 460-32