The URL can be used to link to this page

Tigard 2000 Trees Report - February 1998 TIGARD 2000 i REPORT Tigard, Oregon p .� / r. ` ^ February, '98 TIGARD 2000 TREES REPORT Prepared for: City of Tigard 13125 S.W. Hall Blvd. P.O. Box 23397 Tigard, Oregon 972223 Prepared by: Percival Associates 2863 S.E. Waverleigh Blvd. Portland, Oregon 97202 February, 1998 TABLE OF CONTENTS description page number(s) Introduction 1 - 3 General Recommendations 4 - 6 Site Specific Recommendations 7 - 35 Figure 1 - City Wide Map/Site Location Map Benchview Greenway 8 Figure 2 - Benchview Greenway SchematicTree Planting Plan Bonita Road Greenway 9 Castlehill Greenway 10 & 11 Figure 3 - Castlehill Greenway SchematicTree Planting Plan Colony Creek Greenway 12 Figure 4 - Colony Creek Greenway SchematicTree Planting Plan Commercial Park 13 Cook Park 14 - 16 Figure 5 - Cook Park SchematicTree Planting Plan Dover Landing-Pick's Landing- Landing- Willowbrook Farm Greenways 17 Figures 6 and 7- Dover Landing-Pick's Landing- Willowbrook Farm Greenways SchematicTree Planting Plan Englewood Park 18 & 19 Figure 8- Englewood Park SchematicTree Planting Plan Fanno Creek Park 20 & 21 Figure 9 - Fanno Creek Park SchematicTree Planting Plan Genesis-Pathfinder and Terrace Trails Greenway 22 Figures 10 and 11 - Genesis-Pathfinder and Terrace Trails Greenway Table of Contents - 1 9713tb1c.nts SchematicTree Planting Plan Gentlewoods Greenways 23 Grant Greenway 24 Figure 12 - Grant Greenway SchematicTree Planting Plan Greenburg Greenway 25 Hillshire WoodsGreenways 26 Jack Park, Jack Creek, Summer Creek, and Fowler Greenways 27 & 28 Figure 13 -Jack Park... SchematicTree Planting Plan Scheckla Greenway 29 Figure 14 -Scheckla Greenway SchematicTree Planting Plan Summerlake Park 30 & 31 Figure 15 -Summerlake Park SchematicTree Planting Plan Tigard Street Greenway 32 Figure 16- Tigard Street SchematicTree Planting Plan Winterlake Greenway 33 Figure 17- Winterlake Greenway SchematicTree Planting Plan Woodard Park 34 Figure 18- Woodard Park SchematicTree Planting Plan 114th Storm Drain Outlet 35 Figure 19- 114th Storm Drain Outlet SchematicTree Planting Plan Appendices Appendix A - Tree Planting Recommendation: Quantity and Cost Summary Appendix B - Tree Planting Details B-1: Tree Planting in Natural Areas (details A and B) B-2: Tree Planting in Lawn (detail C) Appendix C - Implementation Phase 1: Estimate of Probable Construction Costs Appendix D - Fanno Creek Watershed Management Plan Excerpts Table of Contents - 2 9713tb1c.nts 1 1 1 1 1 1 1 1 ' Introduction ■ ■ I INTRODUCTION Trees contribute to the beauty and health of our community in a number of ways. However,trees must often be removed to make way for the building of roadways, homes, and businesses. The city of Tigard enacted a tree removal fee to supply funds for replacing these trees. The purpose of this study is to identify locations in the community for planting these replacement trees. Money from the "tree planting" fund will be used to implement these recommendations. Initial discussions identified a variety of places where additional trees plantings might take place (e.g.: schools, along streets,parks, greenspaces...) Each type of site requires a different evaluation and tree planting recommendation process. The length of time and number of interest groups varies significantly with each of the types of sites. This study looks only at parks and City owned Green Spaces to identify locations for planting replacement trees. These are sites and areas where identifying tree planting recommendations are the simplest and can be most quickly implemented. Conducting studies for tree plantings on other public properties (e.g.: schools) and along streets will take more effort to organize and coordinate. These studies will involve the community, school district, and other governing organizations directly in the process of identifying programs and locations for additional tree plantings within the city. These are tasks which will be part of future efforts. During our examination of Tigard's parks and greenway we noted that these lands could be divided into to categories, each with it's own set of criteria for identifying opportunities for planting trees. The first category was the developed park lands. Trees in these areas provide visual interest, help to define space, shade park users, as well as providing the usual benefits of trees in our environment. However, in this built environment trees must be very carefully selected and located so as not to interfere with park use and overly complicate maintenance tasks. Trees in this type of area must be compatible with the aesthetics and character of the park setting. The second category of area are the city"s 'natural areas'. Tigard's inventory of such lands includes hillside forests, wooded stream corridors, and various types of wetland and riparian environments. The condition of these lands vary greatly. Some are very healthy and relatively undisturbed environments which need little if any enhancement. Others have been severely impacted by natural events or human activities and are in need of significant remedial action. Tree plantings in these natural areas serves to enhance and reinforce the natural functions of these environments. Trees can widen the diversity of plantings and related habitats. Trees often provide environments which inhibit the growth of aggressive plant species (e.g. blackberries and Canary-Reed grass)reducing the maintenance work related to controlling such problem plants. Trees help shade water and absorb nutrients, both of which act to enhance water quality. Trees intercept falling rains and thereby reduce the high peaking nature of urban streams. Trees help to hold soils and slow down the flow of flood waters thus helping to reduce soil erosion. Trees also provide visual screening of the built environment surrounding these urban green spaces. This enhances the feeling of'getting away to nature' for the users of these areas. While we were looking at the various sites we kept these aims and benefits in mind and used them as guides for developing our specific tree planting recommendations. The recommended installation size of trees varies significantly between the 'natural areas' and 'developed' park lands. Trees planted in 'natural area' are recommended to be small in size but large 1 9713rept.fnl in quantity. We expect to have a significant percentage of plant failure in these areas. There is no irrigation water available in these areas. This will cause fatal stress to many trees during the dry summer season. The smaller trees will be better able to adapt to the environmental stresses. Those trees which are successful will, within a few years, out-pace the growth of trees planted at a larger size. The lower cost of each tree means we can afford to plant significantly more trees to offset the anticipated loss. Planting significant numbers of trees in'natural areas' is very important. The 'natural areas' which require tree plantings cover a lot of acreage. Trees in these areas are naturally spaced close together until the passing of time completes the thinning process. These trees are in competition with a lot of the elements and forces present in these areas. Giving them the advantage of numbers is our best hope for assuring a successful outcome. Trees planted in 'developed' park area need to be larger in size. They will be placed in areas covered by irrigation or where installation of irrigation can be reasonably accomplished. This will eliminate the problem of stress. The larger sizes are necessary to allow these trees to withstand 'interactions' with park users. Smaller trees are too easily damaged and have proved to be unsuccessful when installed in such areas. Trees of a larger size are also needed to provide the immediate visual impact in such highly visible areas. Our study identified only a limited number of locations in'developed' park where tree plantings are advisable. This will allow these plantings to be installed without overburdening the funds available for this work. The report identifies two categories of recommendations. The first are 'General Recommendations' which are policies or actions which apply throughout the City. These 'General Recommendations' are presented together immediately after this introduction. Following the 'General Recommendations', the second category, 'Site Specific' recommendations are presented. This section provides a narrative for each of the sites visited during the course of the study. The narrative gives a brief description of each site. Sites where plantings are recommended,the narrative includes a description of the general area(s) for tree plantings and the specific quantity, type, and size of trees to be planted. We have recommended "no tree planting" for a number of the sites we visited. Some sites have adequate tree cover and need no additional trees planted. The future use of other sites remains undetermined. Until the future use and development of these sites is determined we are unable to recommend appropriate tree plantings. The present use of some sites (e.g. sports fields) eliminates the need to plant trees in those parks. The narrative for these sites simply indicates "no tree plantings are recommended...". Maps are provided for each of the sites where we are recommending tree plantings. The maps are schematic in nature. We have indicated general areas where tree planting of various types are to be placed. Determining the actual location where trees are planted will be determined by marking locations in the field just prior to the installation of the trees. This approach minimizes costs related to mapping and allows planting locations to account for specific site conditions. Developing more detailed mapping would have required more detailed and costly site surveys and in the end field staking to determine locations would still be required. The use of schematic mapping and close field support to establish actual planting locations provides the best approach for implementing this program and keeps administrative and planning costs to a minimum. Implementation of these planting recommendations will be accomplished in several phases and it can take several forms. Volunteer plantings can be organized. Trees can be provided to community groups for tree plantings they have identified. Work can be contracted out to professional 2 9713rept.fnl landscaping companies. Work crews from County Corrections, supervised closely by City staff, can be used. There are also a couple of options for securing the needed plant materials. The City can contract directly with nurseries or plant brokers for obtaining and/or growing trees. If the City contracts with a Landscape Contractor to install the trees the contract can include the requirement that the Contractor also provide the trees. All of these are viable options and each is likely to be used to implement these recommendations. The actual method(s) selected to implement the recommendations at any particular site will need to be determined by City staff and Council. 3 9713rept.fnl g� Recommend&fionsC�eneral 9713divi.der GENERAL RECOMMENDATIONS 1. Tree care and tree related maintenance has always been a part of the job of City maintenance personnel. However, as the City of Tigard grows the character, scale, and scope of tree related maintenance work changes significantly. The care of trees in parks and in urban natural areas has become an area of special study and expertise. Tigard's growing collection of pubic woodlands and forests place the City more and more in the role of forest caretaker. The increasing emphasis on natural forests, wetlands, and riparian areas requires City staff to protect and enhance natural areas which once would have been 'cleaned-up'. As the City grows more and more pressure is put on public lands. As public tastes and demands change, new types of landscapes require attention by the City. These additional pressures and new types of situations both increase and broaden the requirements for staff skills, time, tools, and equipment. Parks and public works maintenance staff often lack the experience and special training in arborculture needed to be able to provide efficient, safe, and comprehensive tree care and forest management. If the trees in the developed parks and 'natural' areas are to be healthy and vigorous; if these areas are to be maintained as safe places for the public to use; and if living adjacent to such areas is to remain save and desirable the City needs to be certain that staff has adequate personnel, proper expertise, and the right tools to perform the tasks required. Our recommendations in this area are as follows: a. Care and maintenance of the City's trees and woodlands needs to be actively pursued. While taking care of 'danger trees'and other emergency situations is critical, a specific program of proactive care and management of the City's trees need to be developed. b. Staff expertise and capabilities in the area of urban aborculture and forestry need to be enhanced. This is likely to require additional staff with suitable expertise, training of existing staff, and acquisition of additional equipment. 2. Trees in developed parks and natural areas often die or become damaged such that they must be removed. This is sometimes part of a natural thinning process which occurs in woodlands. The removal of trees can leave undesirable gaps. Our recommendations are as follows: a. In developed parks and natural woodlands: When a tree is removed careful thought should be given to the installation of replacement tree(s). A record of trees removed should be kept and a specific recommendation for replacement, if needed, should be part of that record. Replanting should occur as part of the removal process whenever possible. Where immediate replacement is not possible, a firm plan for future replacement planting should be developed. b. In natural woodlands: (1) Unless a dead tree presents a hazard it should be left standing. Dead trees provide unique and valuable habitat for a wide range of wildlife. (2) Trees which must be felled or which have fallen over on their own accord should be 4 9713rept.fnl left in place wherever possible. If the tree must be cut into lengths (e.g., to remove blockage of a trail) the wood should be placed in an area where it will not be a hazard. If branches must be removed and chipped to eliminate fire hazards, the • chips should be spread over the woodland area. The decaying wood will provide habitat for important flora and fauna, will retain the biomass within the woodland environment, and will reduce soil erosion. (3) When trees are removed from woodlands and replanting is deemed suitable special consideration should be given to the type of tree(s) to replant. Many of the City's woodlands are comprised of relatively short-lived deciduous tree species. Replanting with longer lived 'climax'species (e.g. Hemlock and Cedar), that can tolerate the shaded woodland conditions, should be considered where appropriate. 3. Native beaver and the non-native Nutria can have a significantly deleterious effect on the woodlands surrounding wetlands and stream corridors. As development further reduces the habitat available to these animals their impact will become more intense. Our recommendations are as follows: a. Beaver population should be monitored in all wetland and riparian areas. When damage to woodlands becomes evident a trapping and relocation program should be implemented. However, the beaver is a natural part of this environment and while limited management is unfortunately needed it should only be done reluctantly; when damage is found to be wide spread, serious, and adversely impacting wide areas of woodland; and when preventative and remedial measures are ineffective. b. Nutria are a non-native species, introduced when fur harvesting schemes proved to be unprofitable. They offer no positive contribution to the environment, they damage natural habitats, and they displace native species. These animals should be actively eradicated from all the City's parks and green spaces. 4. Water quality and water detention facilities are becoming a growing element in our communities. They are often placed in highly visible locations. These facilities perform important utilitarian functions. Proper functioning and periodic maintenance of these facilities places important demands on the design and character of these facilities and their surroundings. However, many of the region's Engineering and Landscape design professionals are designing facilities which are aesthetically pleasing while serving all of their basic functions. Many of the visual enhancements can also serve to minimize maintenance work while enhancing and expanding the utilitarian functions of these facilities and their surroundings. Tree plantings are the type of'improvement' which can enhance both the aesthetics and functioning of such features. Therefore we recommend: The planting of significant number trees and other wood vegetation be a requirement at all water quality and water detention facilities. These plantings shall be required to enhance the storm flow mitigation and water quality functions; minimize long term site maintenance; broaden the function of the sites (e.g.,provide habitat,provide visual screening); and enhance the aesthetic character of these facilities. 5 9713rept.fnl broaden the function of the sites (e.g.,provide habitat,provide visual screening); and enhance the aesthetic character of these facilities. 5. Control of Invasive Plant Species: There are a number invasive plant species in our area which interferes with the establishment and continued vigor of trees and native shrubs. Introduced species such as English Ivy, Himalaya blackberry, and Reed Canary grass are of particular concern in the Tigard area. These plants are so wide spread that any general program for their elimination would not be financially feasible. Therefore we recommend: Where new trees are planted an active program for eradication of these particular species should be conducted. This program would need to begin prior to planting of the trees and follow-up eradication work would needed to be conducted for several growing seasons afterwards. Where eradication of these and other aggressive plant species from a wide area is not possible actions should concentrate on eliminating these plant in the area immediately around newly planted trees. 6. Fanno Creek Watershed Management Plan (FCWMP) Support: The Unified Sewerage Agency (USA) of Washington County worked with a committee representing state, county and local jurisdictions (including Tigard), businesses, and community group representatives to develop comprehensive recommendations for enhancing the water quality and storm water handling functions of Fanno Creek. A significant portion of this stream flows through Tigard and a number of the sites considered by this (Tigard 2000 Trees)report lie along the banks of this stream. The recommendations of the FCWMP are much broader than those encompassed in this plan. However, the planting of trees is specifically identified in the FCWMP as an important component of the schemes for enhancing the quality and functions of Fanno Creek and it's tributaries. Our recommendations in relation to this report are as follows: a. The City of Tigard should support the efforts of public and private groups in the realization enhancement recommendations relating to the planting of trees at the sites identified in the FCWMP in the City of Tigard. b. Special attention should be given to providing assistance to community volunteer supported groups such as the "Fans of Fanno Creek". The "Fans"organize an annual tree planting day on the first weekend of March. They rely on the financial support from grants and government agencies to secure the native trees which their volunteers plant along the stream corridors. Presently, and in the foreseeable future, the "Fans"are concentrating their efforts within the City of Tigard in East Englewood Park and the adjacent and downstream riparian areas. A representative of the "Fans"expects that their group will be seeking$3,500- $5,000 per year to purchase trees to support their efforts. It is the recommendation of this report that the City of Tigard utilize the funds from the tree removal permits to support these and other organized volunteer efforts. (See Appendix D for excerpts from USA's Fanno Creek Watershed Management Plan.) 6 9713rept.fnl Site S © jFj RecommenLafions 9713divi.der PARK AND PUBLIC GREENWA Y SITE SPECIFIC TREE PLANTING RECOMMENDATIONS The City Wide Map (figure 1) following this page shows the location for all of the sites covered by this report. The pages following the City Wide Map describe our recommendations for tree plantings at each park and public greenway site visited during the course of this report. Where plantings are recommended the report for that site contains: 1. a description of the site. 2. a description of the general purposes for planting trees. 3. the areas for different tree plantings. 4. specific types, sizes, and quantities of trees recommended to be planted in each area. Sites where plantings are recommended a Schematic Map of the site is provided. This map shows the general area where tree plantings are proposed. The scale and general nature of these maps does not allow for depiction of specific tree planting locations. The locations where individual trees will be planted will be marked in the field as the initial step in the planting program for each site's areas. There are a number of sites where we have not recommended planting additional trees. The narrative for these sites describes the site's character and the reasons why no additional tree plantings are recommended. No maps are provided for sites where tree plantings are not recommended at this time. 7 9713rept.fnl �- �� ( j r E �11 % �� 114" STORM DRAIN OUTFALL I yy City of Tigard — � ` 1 ' ' �` �/ �-� I Geographic Information System WEIR �I (- ENGLEWOOD PARK I �' ,� a' ? I ` 1 RD _ �—. 1 JACK PARK,JACK CREEK,SUMMERCREEK& FOWLER GREENWAYS'; - �`_~ \\ LI/--- 7 / / girL . i �I vv �' I �v,, 1 $IREENBURGGREENWAYS LIr-±— • 2000 TREES PROJECT i ( -- ' FERRY / �� OAK KI ST a > IGARD ST.GREENWAY' �� 1 =o,;s � � �1 _ ' ' �, �" -_ CITY WIDE MAP - _"' �''"I nj / I WINTERLAKE GREENWAY °' 4 �' t- - { DAKOTA I m < �`� i i / Alli NORTH ST [Ti� i 1 t. i I u \ �y t► �� 1 �� WOODWARD PARK � 1 ( J I F``� , 'c '',, sW RFAFFLE,e4 -4 1 •` � r `� ! —IRD j \\ IIII I I SUMMERLAKE PARK � GRANT GREENWAY rt o\%5'''-' \ F. -o--_---------7--H I 1 \ R7' \'% 1' ' . lik i I\ CASTLEHILL GREENWAY r ��\ ,y',o� COMMERCI• L PARK o � -.1._._. SW 50\0...• , i ,if r,j, , _ /, ,,,,..,,,,,,,,,,,,, ..;,7., , ..... __ I shi,...„,r4 ,isc \\ ' %�� FANNO CREEK PARK 1_6- • � A '1 M ' ‘\ �� J / HILLSHIRE WOODS GREENWAYS / L - Y;� l r•- • —J t:::11-1 Bul r \.,„., ..,, , „ .\.?,,J 0 • 1• /' /� El y \\/.. 4 BENCHVIEW GREENWAY r^ount��/ r (;_' /�,. t o �. • 3 Ali m `� NOTE: a �syy �■ /� This map is of a generalized C ``�n I' _ ,ss ,!,,,teDOD �� nature and should not be �' COLONY CREEK GREENWAYS / used for detailed measurments. 1 sup-_ IN �” BONI[ARD.GREENWAY BULL MO N IN RD I B�1 A RD- • I' ' 1- rti •" , . s� I % z Percival Associates GENESIS-PATHFINDER AND TERRACE TRAILS GREENWAYS `" Landscape Architecture ' + --- e SCHECKLA GREENWAY '- -, ' ---+ SA LLE' �i;�•� 1 INCH = 2400 FEET LT) �' \ = IL �-- GEN!LEWOODS GREENWAYS _ ---) ) ___;‘,..„,..., lif / II ____j) :--{-4)._ C \\pf4-- , ,>.)-- Iseij II )1 I , ' 1 rt-1 N :EEF r W.<1!???...E > IMP ' ' trr SW •wat. RHAM �� RD DURHAM :END RD � Q 1 \ Q PICK'S LANDING& WILLOWBROOK FARM GREENWAYS ( •• Ji / A h II , , i F.'' /11110.175RD ' `-i-L-L) ' 1 N IFISCHERL • . 7 IT DOVER& PICK'S LANDING GREENWAY •� ! ;I'''. • / '� COOK PARK y4AN , _,_,J,.fge.hI! rijilI - `—� ! • )///..=, CITY OF TIGARD 11\24\97 tig2\sys\gis\profectS\shadtree\shadtree.apr(city.prt) I Figure 1 BENCHVIEW GREENWAY (see Figure 2) Site Description: This site is located in the hills of western Tigard. The largest portion of the site is located to the west of 132nd just south of Bench View Terrace. This area is covered by a mixed species second growth Douglas Fir woodland. The smaller parcel to the east of 132nd has been cleared or effected by construction and has only a few small volunteer Alder trees growing on it. Planting Recommendations: The western parcel is well wooded and requires no additional tree planting. The eastern parcel would benefit from a reforestation planting to cover the bare areas. We recommend planting Douglas Fir, Hawthorne, and Crabapple in this area. (Quantity) Common Name/Botanical Name-Planting Size (75) Douglas Fir/Psuedotsuga menziesii- 12"-18"tall (1 gallon); (35) Black Hawthorne/ Crataegus douglasii and(35) Western Crabapple/Malus fusca- 2 gallon 8 9713rept.fnl / \ \ / BENCHVIEW GREENWAY 0 \ .---- ------\, � �'� REFORESTATION AREA P )7-151‘. / i .s. Tigard 2000 1 \ \ y ' .40 - Trees Project \ / -- • ExistingY� ("13 � ,- Woodland ��i' �� + A PARK OR .-,� GREENWAY Cj\14 lb" / -N ,� \ V\ , BOUNDARY 1 / 1 1 i rABENCHVIEW - Schematic Tree ` S\N HV - �'N� Planting Plan I ., . I /4q'' '`, , v. N. i . .' N • � \ ', t 2.------\ • • • . __--.7.1:1-f ‘IC:-.)\k-r---\ •• y' U • • •• \ NOTE: • .• �\ this map is of ageneralized J I1III___ \ used for detailed measurments. si - coma_a, , Existing Woodtan� : \ \ \) \ Percival Associates I . ,�; .,\ 0 \ Landscape Architecture / � Imo' 7 f November 21, 1997 i --------______4,./k/, sem0 r n 7•, \ / /I rTr (_ —� 1 inch = 125 feet , 1._______Thj er • \ i zI N \ •/•• \ \' I �� W E • • 0 r s VN WOC�DSHIRE LN 0 o \ m ~ LLJ� 1 .. , 4111, ii. o Xr---1\ 0119197 I:\gis\prof•cts‘shadtree\shadtree.aprywoodward.prt) W "rt CITY OF TIGARD 9713 Tpard 2000 Trees Figure 2 C. BONITA ROAD GREENWAY (no map provided) Site Description: This site consists of a fairly flat open space of undeveloped property on the north and south sides of Bonita Road on the eastern edge of the City. The site contains some stands of sizeable deciduous trees (Oak and Ash), but it looks like it was cleared for development and utility installation in the not to distant past. The flat topography, nature of the site's vegetation, and the dimensions of the site would seem to present this site the potential for development as an organized recreation site. At present we could not identify the City's long term plans for this site. Until the future of the site is determined it would be premature to identify or implement plantings of trees on this site. Planting Recommendations: No tree plantings are recommended for this site. 9 9713rept.fnl CASTLEHILL GREENWAY (see Figure 3) Site Description: The Castlehill Greenway is comprised of three water quality/detention ponds near the intersection of SW 135th and Walnut Street in western Tigard. Pond#1,the most westerly, is the only one of the ponds which has standing water for most or all of the year. The other two only hold water during storms. Except for a few hydrophytic plants (cattails) around the edge of pond#1 the only desirable vegetation around these ponds is rough seeded grass. Blackberries are already becoming established around the edges of pond#2 This invasive vegetation will likely become well established around all of the ponds. The ponds are immediately adjacent to the single family and multi-family residential developments. At present the ponds are not a positive aesthetic element in the neighborhood. Judicious tree planting can help to correct this condition. Planting Recommendations: The utilitarian functions of these sites requires that equipment access be provided into and around these ponds. When locations for planting trees are staked, special care and coordination will be required to be sure that access ways are not blocked and that there is no interference with maintenance and cleaning tasks. Additionally,the basic water holding and cleaning functions of these ponds requires that certain areas be kept clear of vegetation in order to maintain the capacity of the sites. Specific planting locations will need to be kept out of such areas. However, in keeping with the General Recommendations we recommend that trees be planted around these facilities to provide a more positive image and a more environmentally enhancing character to these ponds. Pond #1: We recommend planting Douglas Fir and Western Red Cedars on the northern edge of the pond. This will provide a visual 'frame' for the ponds and some visual screening between Walnut Street and the homes which surround this pond. Most of the area along the street should be left open to allow clear view from the roadway into the pond. Alders and Willow should be planted along the southern and western sides of the pond. These trees will shade the water in the pond and provide a more aesthetically pleasing pond perimeter. It should also be noted that tree planted in dense groves will inhibit the growth of the blackberry and will assist in minimizing the maintenance work related to these berries. (Quantity) Common Name/Botanical Name-Planting Size (50) Douglas Fir/Psuedotsuga menziesii and(25) Western Red Cedar/Thuja plicata - 12"- 18"height (1 gallon) (75) Red Alder/Alnus rubra- 6 ft. height and(50) Scouler's Willow/Salix scouleriana- 1 gallon Pond#2: We recommend planting Black Hawthorne and Ponderosa Pines along the northern edge of the pond. This will provide a screen between the pond and the adjacent apartment complex to the north. (Quantity) Common Name/Botanical Name-Planting Size 10 9713rept.fnl (40) Ponderosa Pine/Pinus ponderosa - 24"-36"height (30) Black Hawthorne/Crataegus douglasii - 1 gallon Pond #3: We recommend planting Black Hawthorne and Ponderosa Pine along the eastern edge of this pond. (Quantity) Common Name/Botanical Name-Planting Size (30) Ponderosa Pine/Pinus ponderosa - 24"-36"height (20) Black Hawthorne/Crataegus douglasii - 1 gallon 11 9713rept.fnl W r [ I CASTLE H I LL GREENWAY • Tigard 0 --------_______/ \ _/ I Trees Project )--- WPINE AND HATHORNE PLANTINGPARK OR _�� .� I GREENWAY ' BOUNDARY POND #2 DRY POND _ Schematic Tree WET POND DOUGLAS FIR AND CEDAR PLANTING '��!��////�'/��/� "�� ' �'��' Planting Plan • / S �y WALNUT ST November 20, 1997 ---. . / I .L.::. ...7 / - �� .,�``��/�i.. \ \ . . POND #3 • :+�,_//�� WILLOW P :. -,. f \� - CANTING '7 n 0 *RY POND . ,( \",. 14,41.-)v- ,... NOTE: 1 /i this map is of ageneralized ' nature and should not be 1 ALDER PLANTIN /� used for detailed measurments. j • e. :/ Percival Associates /, 1111111 it Landscape Architecture PINE AND HAWTHORNE PLANTINGli• �� At\ I 'A 1 inch = 100 feet / V A\( . N 0 05 \ 111141111 * W E \` / S % --- _ Ili 11111111111"n— 101 _____ 411,, ,.14iNii , , / 1111 (/_ , I CITY OF TIGARD 11\18\97 I: ••s\projects\s4•tree\Shadtfee aprycstlhill.prt) ' 9713 Tigard 2000 Trees Figure 3 COLONY CREEK GREENWAYS (see Figure 4) Site Description: This greenway is comprised of a number of adjacent and separate greenway parcels on the banks of Fanno Creek in the eastern section of the City. An asphalt trail runs through the northerly group of these greenway parcels and serves as a connection along the creek and between neighborhood streets and cul-de-sacs. The greenway parcels are fairly well vegetated. Unfortunately, much of the vegetation between the trail and adjacent creek is comprised of blackberry thickets. Little shade is provided for the creek and little plant diversity is present in these areas. At the northern end of the green ways there are some areas between the stream meanders which do not have adequate tree cover. Blackberries are no as much of a problem in these areas but the lack of tree cover does mean the creek is not properly shaded and habitat diversity is not what it could be. Planting Recommendations: Blackberry thickets need to be cut down to ground level in areas where planting are indicated. Care must be taken not to disturb site soil while accomplishing this task. This is most important in the "South Planting Area" where creek side slopes fall steeply away from the trail. Plantings in the "South Planting Area" will comprise of Alder trees planted on the upper banks adjacent to the slopes and willow cuttings in the exposed and steep lower portions of the stream bank. (Quantity) Common Name/Botanical Name-Planting Size (120) Red Alder/Alnus rubra- 1 gallon: Plant on upper slopes of bank. (500) Columbia Willow/Salix fluviatilis - 10"-12"long cuttings: All cuttings shall be fresh and viable with at least 4 viable growth buds. Plant in lower banks of steam. Plantings shall be concentrated on the scour side of bends in the stream which are near the path. The "North Planting Areas" extend from the path edge and out onto points of land between the undulations of the stream course. These areas are more frequently inundated and planting Oregon Ash will be more appropriate in these areas. (Quantity) Common Name/Botanical Name-Planting Size (100) Oregon Ash/Fraxinus latifolia - 3 to 4 foot height 12 9713rept.fnl Colony Creek/Estates Drive/ Tigard 2000 Schematic Tree Finley Park/Bonita Rd Greenways Trees Project Planting Plan N November 20, 1997 e�A I� \A PARK OR Percival Associates CITY OF TIGARD `t NOTE Landscape Architecture GREENWAY W E this map is of ageneralized � BOUNDARY nature and should not be 1 inch = 150 feet s Used for detailed measurnlentS. 10\9\97 I:\gis\projects\shadtree\shadtree.apr(colony.prt) 11+ 9713 Tigard 2000 Trees .t '.1 \` 7 1 t \� 1 -13 i, i .."/ca.°. .:: O QC I' • .,4' • c a • • -- W CL .�� — 0 =•''A ,1 % d H ; mss! Q Z 1 \ z a, . , ". . z g z _ 1 � ' . 0 V DE_EANN CT. , ? - • ---- • a.l — 4 - ��Um, _ (i) Y `°'a ; i Il 1 ••••i .' i I ~• a ••• I . .:/____.2. ' • • _REE _ CT - r • } D V . ___.__ __,._ 1 lisi . Zi DRIVE40 •., , o+ • • , ; *73 / 4//� 0 �A o c11 _1 ___ \Q _ ~ I (JD WEA f 1 tid P ' i .rKROE I COMMERCIAL PARK (no map provided) Site Description: This is a small green space just to the west of Highway 99 west of old downtown Tigard. The site is covered by lawn with a generous canopy of mature deciduous trees. This site afford no opportunity to plant additional trees. Planting Recommendations: No tree plantings are recommended for this site. 13 9713rept.fnl COOK PARK (see Figure 5) Site Description: Cook Park is located on the banks of the Tualatin river on the southern edge of Tigard. The park lies within the river's flood plain. Some portions of the park are flooded annually and the entire site is occasionally covered by flood waters. Cook Park is the City's largest park and the most actively used. Events like the annual hot-air balloon races,which are held at Cook Park, make this a regionally significant park site. The park is comprised of five distinctive areas. The first are the sports fields and parking lot on the western edge of the park. The second is the newly acquired rough grass and wetland area in the northeast corner of the site. The area of rough grass in this section is planned to be developed for more active recreational use. The third area is grassed wooded area used for picnicking in the central portion of the park. The fourth are the natural woodland areas along the banks of the Tualatin River and in the center and eastern edges of the park. The fifth is the developed boat launch and grass picnic area along the river at the southern edge of the park. Planting Recommendations: There are three separate areas within the park where tree plantings can contribute to the character and environmental quality of the site. The soccer fields,in the northwestern corner of the park, lack trees along most of the perimeter. The size of this multiple field complex could be made more pleasing by the presence of large trees around its perimeter. We are recommending the planting of large scale canopy trees (Red Oaks) on the western and southern edges of the fields. In addition to providing a suitable scale 'frame' for the field area, these trees will provide shade for spectators and players. We are recommending that evergreen trees (Douglas Fir and Western Red Cedars)be planted in the wetland buffer area at the northern edge of the site. These trees will provide additional buffering for the residents to the north, shade the wetland ponds, buffer the natural environments from the actively used fields, and provide a suitable visual frame on this side of the fields. The presence of low overhead power lines prevents planting of trees on the eastern boundary of the fields. If these lines are ever placed under ground, planting of Red Oaks along this side of the field would be highly recommended. (Quantity) Common Name/Botanical Name-Planting Size (26) Red Oak/Quercus rubra- 3"caliper: Install at 40 feet on center on the west and south sides of the soccer fields. These should be planted within an irrigated area. (70) Douglas Fir/Psuedotsuga menziesii and(70) Western Red Cedar/Thuja plicata - 4-6 ft. height: These should be planted north of the mown grass in the rough grass area south of the wetland ponds. The trees will be planted in clusters in an informal arrangement. Temporary irrigation should be routed from the irrigation mainline in the soccer field to provide watering for these trees for the first two to four years after they are installed. 14 9713rept.fnl The newly developed wetlands in the northeastern corner present one of the most significant opportunities for tree plantings. Planting recommendations for this wetlands are separated into five planting areas. Each planting area will have a specific character and serve functions suitable for that area. The north shore of the ponds is mostly covered by blackberry thickets. These need to be eliminated and the area planted with Douglas Fir. The Fir will screen the park from the new residential developments to the north, shade out future berry growth, provide habitat and winter cover for wildlife. (Quantity) Common Name/Botanical Name-Planting Size (300) Douglas Fir/Psuedotsuga menziesii- 12"-18"tall (1 gallon): Plant in clusters such that when mature they will provide a dense screen all across the northern edge of the wetland. Along the eastern boundary of the wetlands we recommend planting Douglas Fir, Western Red Cedar and Willows. The evergreen trees would be planted in the riparian zone away from the waters edge. The willow would be planted at the water's edge. These plantings will shade the pond water to keep temperatures down, screen future development to the east, and provide additional habitat. (Quantity) Common Name/Botanical Name-Planting Size (75) Douglas Fir/Psuedotsuga menziesii and(75) Western Red Cedar/Thuja plicata- 12"-18"tall (1 gallon): Plant in clusters of three to five trees of the same species. (50) Scouler's Willow/Salix scouleriana. (30) Northwest Willow/Salix sessilifolia, and (30) Columbia River Willow/Salix f uviatilis - 1 gallon: Plant in groups of like species at or near the water's edge. Along the south shore of the ponds several types of willows and several clusters of Poplar trees will be planted. These trees will provide shading for the water, forage and habitat for the wildlife. (Quantity) Common Name/Botanical Name-Planting Size (15) Balsam Poplar/Populus trichocarpa - 6 ft. height: Plant near water's edge. (100) Pacific Willow/Salix lucida ssp. lasiandra. (100) Scouler's Willow/Salix scouleriana - 1 gallon: Plant at or near waters edge. (Note: There have been suggestions that recycled water from the nearby treatment plant could be made available for irrigation of the wetland area plantings. It is our understanding that a pipeline carrying this water already runs through or near to this site. We would strongly recommend installation of a temporary irrigation system and utilization of this water to provide irrigation for these planting for a three to five year long establishment period. During this time an active program to eliminate or reduce the growth of blackberry thickets should be carried out.) Along the edge of the wetland area adjacent to the field will be planted with Hawthorns, Crabapple, Ponderosa Pine, and Douglas Fir. These plantings will create a protective hedge row along the boundary between the wetland buffer and field area which is planned for future 15 9713rept.fnl development. (Quantity) Common Name/Botanical Name-Planting Size 1200) Black Hawthorne/Crataegus douglasii and(150) Pacific Crabapple/Malus fusca - 1 gallon: Plant in groups within a strip 15-20 feet wide in the 'wetland'area along the boundary with the rough grass field area. (100) Douglas Fir/Psuedotsuga menziesii and(50) Ponderosa Pine/Pinus ponderosa- 12"-18"height (1 gallon). The grass picnic and boat launching area along the river at the southern edge of the park presents two opportunities for tree plantings. Trees planted in the mown grass area when this area was first developed did not survive. There is little opportunity for park users to find shade in this area. We recommend planting several groves of native Alder trees to provide shade in this area. (Quantity) Common NameBotanical Name-Planting Size (15) Red Alder/Alnus rubra- 3"caliper: Plant in three groups offour to six trees each. The open river bank areas adjacent to the fishing dock and boat launch areas are bare of any trees. Some of that area is intended as a small boat launching and landing. These areas must be kept clear of trees. Other areas would benefit from the planting of trees which can tolerate the annual flooding of these areas. Willows and Oregon Ash are the type of trees suitable for planting in this area. (Quantity) Common Name/Botanical Name-Planting Size 130) Columbia River Willow/Salix fluviatilis - 1 gallon; and(20) Oregon Ash/Fraxinus latifolia- 6 ft. height: Planted near the low flow river edge. 16 9713rept.fnl <w DOVER PICKS GREENWAY SW-- , 1 i i..,..___L . _ lwAVRLY� DRI J _ __ , 1 1 (See Figu a�) a _____ COO K 1 t , - : _____ I , iii �m° `o , . ___., 1 : ._ i 40. 4/ . cn ! 0 ___ ___ 1i NORTH FIELD BOUNDARY ! ��; ' NORTH PA ANTING AREA PAR K (Area 5)i - - �" - ,,//lll /I///Dl/////,//�/, i fi j %iii ��M 1��.1111161��,i. Iui/A TUALATI �/� .�l/Ull//S////I,i'/'zyt/ , ` • ` f . . • '• �� / •/'j;:�:.• •..• „ '-•.. Y,,�`;; ' I GREENWAY �'� �°''� • -'• `J'•. skies ti . •::, ,'`.13. , ,•4 BOUNDARY �Q /, • c., J • • �� Soccer •Field • %� ,• /f '. ••• -•, / Schematic Tree 'ti % i i /1 ,.. •.•; t t EASTERN • Planting Plan • . •. . • �' • :•'.48412 :' ' . •,-, s �; BOUNDARY SOUTH FIELD BOUND' Y ‘ :`' '”'7%//4i//1/i/7(/��///dl////7�j/ is : wE�LAND BOUjVbARY , !� �.: (Area 2) (Area 6) .• •• Rough Grass Area. •� _ . •, r Tigard 2000 T - — :` • • •• • • • •' ,,��11►•''- Trees Project - • . . . 7/ ,/i� Parking Lot I .• - • •• • / ` '"" .'4111‘ November 7, 1997 Play,round POND SOUTH SHORE 44 (Area 3) • • • Wooded Picnic Area Parking Lot i , Parkin. Lot Cs. Ballfields � - th�Tmap is of�fgeneralized .. Restroom Picnic heifer nature and should not be ! SHADE TREE PLANTING I used for detailed measurments. M Existing Woodlan• (Area 7) \ .. i . - 40C4 ,---; --....---.,•••••., Percival Associates r'. Parking LotRIVER EDGE PLANTING I Landscape Architecture iis ..;111i "tie- (Area 8) Boat Launch ' Ij1;1 t Fishing Dock �� _-_____ -�_/ \ ^ \ / ��`e'� i� t` �/ 1 INCH = 300 FEET _ I II . .... . �.* r Y Grass Picnic Area i t t • '� � Boating Dot‘'/ 1 1 N �� <_..-------;\ 4 I /// i W E • • �\ �. I y' G`� S� \ 4 Riparian Woodland Area `JV s '1 �/ , _CT Li_____-, ,,c,,>\zs>,. Fes' �- \ -04 � 1011/4 „7-Z �� j'� N./..' \N/ , ' 9129\97 tig2\sys\gis\proj cts\sh r�(cookpairWort)N%, I 1 N CITY OF TIGARD I 9713 Tigard 2000 Trees Figure 5 DOVER LANDING - PICK'S LANDING-WILLOWBROOK FARM GREENWAYS (see Figures 6 and 7) Site Description: This group of sites lie west of Cook Park. A greenway trail runs from Cook park and through the river side sites in this group. Three sites at the western end of this group are located away from the river. They are essentially landlocked woodland sites. The greenway parcels along the river can be divided into three zones. Starting in the east, bordering Cook Park, a dense mixed species forest covers the first section of this area. Moving to the west one arrives at an open mown grass area. The riverside (southern)edge of this site is covered by a riparian Douglas Fir-Alder woodland of varying width. The trees bordering this side of the lawn provide a very pleasing framework for the open grass area. There are no organized recreation facilities and only a few trees in this grassed area. The backyards of adjacent home border the northern edge of this area. The open grass fields provide an area for informal play. West of lawn area the trail leads into a mixed riparian forest environment. Some of this area is covered by healthy and mature woodland trees and shrubs. However, some portions of this area have only sparse tree cover,the trees species are short lived varieties, and undesirable plant species have become established. Additionally, in a small portion of this area recent construction activities have left some areas without tree cover. Planting Recommendations: The area at the eastern end of this group of sites is well wooded and we recommend no additional tree plantings there. The open grass area to the west of this woodland might benefit from additional tree plantings. However, we recommend no additional tree planting in this area at this time. Tree plantings, if appropriate, should be delayed until more discernable plans are made for the use of this area. The sites at the western end of this grouping, which lie away from the river, appear to be adequately wooded. We recommend no additional tree planting in these sites. The riparian woodlands west of the open grass area offer significant opportunities for tree planting. It is our recommendation that we plant trees species such as Western Red Cedar, Western Hemlock, and Douglas Fir in the open and thinly wooded sections of this area. As these trees grow we will see a reduction of the blackberry thickets and an increase in the mixed riparian forest. There are already significant portions of this type of environment in this greenway. The new tree plantings will help to expand this pleasant and rich riverside environment. (Quantity) Common Name/Botanical Name-Planting Size (200) Douglas Fir/Psuedotsuga menziesii. (200) Western Red Cedar/Thuja plicata. and (200) Western Hemlock/Tsuga heterophylla - 12"-18"height (1 gallon): Clear blackberries away from planting locations prior to installing trees. Plant in open areas and areas where existing tree cover is thin or in poor condition. 17 9713rept.fnl \,;‘....,\ / '>-- OJ )) - / --., ----_' --- . ' DOVER & _ _ PICKS LA NDING i OGREE WAYKENTSI KEW- ( - ---i ----- s .---- \_ ---- --- \ 2 ' 1 / \ ,, \ la( _.- ,-- -------"------ ,------_/: -1 Schematic Tree , _________, „,,,,,_.7 Tige rd 20 9 , \ - , 1 i __) _ / i / \ \ -1 _. ._ / ' • RIVERWO "( _ , ) / i\ , , , PTD r I ecaaee I , / - Q .7.1 i, ,_ ,_,_ i_____________,, _ _-- - - -- _ ______ -- -- ' ________ ______/ / ' - 1------- ) .----- I r-- PICK'S LANDING#2 -7----/- r -_,90"------6/ la L „ ( ) . 0•-•-•.....___ ; I --- ---- ...--•••,.".., t - • .. •••• L., / / g. . . . . ....." : ... ....-I '• • •• " / , 7 ._,- ._ __.-^"..--- ---- I i _---........ PICK'S LANDING#1 ,' ..-:•7"..7.-- -. e• - ''. . ..-. ri.--r- COOK/PARK COPPER CREEK#2 ------ COOK/PARK COPPERCREEK#1 WAY .,;• • .... 1 J-• , .AA A.••AA-A...4.-. I% < •,... • IP.' -- - •A..I''' It .. • . A Grass: 2 •'• • ' -• "-...,/ / // • ." . '••••••• -.,....„( / • • •••-••_,Z ..-•••"..-••• .....-'L - -- \A PARK OR , I _...i ... ........_...._., , GREENWAY , ....•-• Mixed Riparian Forest e .; • .' ' ••• ' ' - : • " .. t '' -. - .... i • . BOUNDARY • , .. , . . - . . . .. . Drainage Course' . .• Trail .. - . -........ . • . .•.•-••••••..........••- -"--......_. --• ".": • - ' -• • : .• . ••- - : ,, ....Dense Mixed Species Forest • -. • % . • . • . • .............--.-....... - PICK'S LANDING & WILLOWBROOK FARM GREENWAYS ...- This map is of a generalized (See Figure 7) -, PO nature and should not be _, , , __.__ used for detailed measurments __ _ .. ... / i /.._,_ 1 , R • i I_ i i . 1 - Ce* I! , , . i 1 1 , ii . COOK PARK,..._ 1 l , li _ - _,- ---•-_, . (See Figure 5) 1 INCH = 200 FEET / 1 11 ---,..\ .,. \.. , . • N WE S I -- V . _ _ I • 1 snm December no90i,geo1c9t:I a n , \ .......-•-•.--.-.....-...-..-.•-••-• 1 \ \ 1 \ A 1 I in irst."c1L+.' i \ CITY OF TIGARD 12\09\97 tig2ksys\gis\projects\shadtree shadtree.apr(tualatn2.prt)9713 Tigard 2000 Trees Figure 6 _ _____ .- PICK'S LANDING SW r_ & DURHAM ROAD LOT t.• - w SW PIC WILLOWBROOK WBROOK �'t • • z - FARM � �-� - �— o GREENWAYS ' I - REBECCA PARK t-- _ _ /N \A PARK OR ' --•--- BERKLEY ESTATES LOT - - GREENWAY # BOUNDARY • ,`c`AU _ LN � -- - o __ . Schematic Tree • • Q- _ _ o �4 -- --- Planting Plan — '_, °' __SW TITAN C -,�- LT(TAN LN STUART __ _ _�_ – m I i-C--T Tigard 2000 W Trees Project Q ! f I December 9, 1997 F— -- —__ . - 000 - KENT- K KENT CT WILLOWBROOK FARM LOT DOVER & PICKS LANDING GREENWAY:- NOTE: Cl) --(Sid-Figure&) 11 this map is of agenerallzed I i F I nature and should not be - --- / IP - DOUGLAS FIR, CEDAR AND EMLOCK PLANTING4-_, used for detailed measurments. • RIVERW000 0 Y 4 DOVER COURT 8 118TH AVE LOT L ' ! O �-`� DOVER CT Nz ` . ' W. ;D I � �� 1 INCH=200' ___� DOVER LANDING LOT ; " — — WAY `r. N ._ • i1/40,t,_,_10--- 9� .?.„ RIVERVIEW LOT w e • _ _ _ • - TUALATIN DRIVE LOT � _ '' S . - ♦q ` Mixed Riparian Forest `�`��'�`ib_�_'�f.► DOVER LANDING LOT —.' AWN - �- .UALATIN RIVER J___....A 11\12\97 tig2\sys\gis\projects\shadtree\shadtree.apr(dover.prt) - - DOUGLAS FIR, CEDAR AND HEMLOCK PLANTING CITY OF TIGARD 9713 Tigard 2000 Trees Figure 7 ENGLEWOOD PARK (see Figure 8) Site Description: Englewood Park is comprised of two separate parcels in the northwestern part of the City. The easterly portion of the park is referred to as East Englewood Park. A greenway trail and Fanno Creek extend the length of this parcel. Additional City greenway property extends along Fanno Creek south out of this parcel. There are scattered groupings of trees and riparian shrubs in this area but the area is comprised mostly of open grasslands. This section of the park and the greenway extending to the south are areas where the "Friends of Fanno Creek" are developing and implementing planting plans. The westerly portion of the park is referred to as Upper Englewood Park. The portion of the park south of Springwood Drive contains areas of mature riparian forest. The portion of the park north of Springwood Drive is mostly open grassland. Some of the area is mowed, but along the creek edge the grasses are left to naturalize and grow long. Early on in the course of this study a volunteers planted over 200 small trees in this portion of the site. This fulfilled the planting needs for a good portion of the area, but some key locations are still in need of additional tree plantings. Planting Recommendations: At this time an overall 'master'planting scheme for East Englewood Park has not been developed by the Friends of Fanno Creek. They have done considerable preparatory work on the site and have installed quite a number of native trees and shrubs. It is our recommendation that, as their plans are developed,the City provide the trees needed for their planting efforts,. We recommend installation of trees in five areas of Upper Englewood Park. At the north end of the site, adjacent to Scholls Ferry Road we recommend planting Douglas Fir in the 'Buffer Planting Area'. These trees will screen the park from the busy roadway. (Ouantity) Common Name/Botanical Name-Planting Size (75) Douglas Fir/Psuedotsuga menziesii- 12"-18"height (1 gallon) Along the north and south sides of the stream we are recommending planting of Ash and Alder trees to provide tree coverage along the course of the stream. (Quantity) Common Name/Botanical Name-Planting Size (35) Oregon Ash/Fraxinus latifolia and(35) Red Alder/Alnus rubra - 1 gallon South of the creek and trail we are recommending planting of several groves of larger sized Alder trees in the mown grass area. (Quantity) Common Name/Botanical Name-Planting Size (18) Red Alder/Alnus rubra- 2"caliper 18 9713rept.fnl Just north of Springwood Drive the creek widens to form a small bog area. We are recommending planting of Willow to form a thicket in this area. JQuantity) Common Name/Botanical Name-Planting Size (20) Scouler's Willow/Salix scouleriana - 2 gallon Finally, along both sides of Springwood Drive we are recommending planting of large size Alder trees as street trees. (Quantity) Common Name/Botanical Name-Planting Size (10) Red Alder/Alnus rubra - 2"caliper 19 9713rept.fnl • , o • 2 co ENGLEWOOD Culvert . . ivy�� K ..Mk_ '�1anr► •*.:;r• -.•��sMtt. " --- ! Tigard 2000 �•�..�„ Trees Project c,�t� nno UPPER ENGLEWOOD PARK ��;;;_� eek �'Q� :c.:.... �. ' � PARK OR r�`•R_■ - GREENWAY _�wlA __ , •> \ ��:::; � �- BOUNDARY c BUFFER PLANTING AR. . - \,_.-V,, /.., I i _--7711..........:"4"44, % ��=� ,��p lei — Schematic Tree l f It, IMO "' Planting Plan s C �� !O \110 it ��1sGVOL'-- _ -----: . L:21 , NORTH ■ 11 liSTREAMSIDEP \ , ��,t"o',�� PLANTING AREA -EAST ENGLEWOOD PARK Bridge • _ I I —_ �.1. �� SO TH STREAM SIDEPLANTING AREA 00 portionpark9 iii This of the will be revegetated ` ,u \\X ��j as a part of the Fanno Creek Watershed I _\\\'*'•,,\��‘1\�` \`, Plan. Presently, the Fans of Fanno Creek, -- 1 i T .i\ "�� `�� \� `•�" a citizen volunteer organization is taking the / / 1:111. SOUTH \``\\` •\\;" ‘��'`, ` r �� \ lead in developing and implementing —i •-•.!I \t�� ; \ site specific planting plans for this area. 1 .i■. PLANTING AREA g \1 ', ' • •• MARSH EDGE PLA TI G AR\EA _ ' ' t 1 �`a"`,`1��`,\)�,L‘t� \ The recommendation of this report is that �� — \, \�` ; =-- " -- the City of Tigard support these efforts by I ii■l f I I NOTE: \' • _ i ��,` ��1 :''` r providin funds for materials needed f "' i ' ---,_, 1 this map is of ageneralized -- t-------) � ' STR ET REE PLANTI G AREA for these efforts plant % �1 I nature and should not be � \'�< ,./.:\\\,, 1,�ti:1. ^_�'' ` I /,/---•.,,,_,,,,/ ,illi used for detailed measurments. \ .tib•' . . ,,;\.<0 • 11► .�..• :� -- \ r�..■ Percival Associates nowt��. / - �� ,,S'a a i■i Landscape Architecture \-- V .- ''.• : MI �•.. ��tic \ Attartoii ra ��■U ■ftil ■� ■s,s,e� ■1la• ulvert �\ Trail Existing Rough Grass Area •• • • 40_, "' ■ ■1: ` lpliii■ November 12, 1997 O� L '‘tree. " "' .-.-: IIIMIlliaNt1�ii�i. 1 inch = 200 feet 1111101111111111 C _ Existing Woodland • ENGLEWOOD SOUTH GREENWAY >t.■nusa N /Hall/// 1011. % 2:iiiiii1Siiil • __i j "-,� \ i /�/�■��iii fa--, • 7- 1.1 el, IM C4s- i - \ tSbii / \ rt- 10. \\ \--' _ ' MINI • CI/ -V.0 411% (O O \ IIII ■ 4 `p,MON ' ; a 11 k-- ■ 0 moc___ ( � --- 77.., CITY OF TI6ARD 9713 Tigard 2000 Trees Figure 8 FANNO CREEK PARK (see Figure 9) Site Description: Fanno Creek Park lies between Main Street and Hall Boulevard in central Tigard. Fanno Creek and a series of paved greenway trails run through the park. The park is bordered on the east end by a Senior Center on the south and the City Hall/Library complex on the north. The remainder of the park's southern edge is bordered by homes and apartments. The northern edge is bordered by offices and industrial uses. Except for a modest sized lawn area adjacent to City Hall, the park is comprised of a variety of natural riparian and wetland vegetation types. Planting Recommendations: Our recommendation is to install trees which will fill in a few selected treeless areas along the creek and trees to screen the adjacent developed areas from the park. At the western end of the stream a narrow strip of land runs between the trail and stream. This area is covered mostly by blackberries. Our recommendation is to clear the berry thickets and plant Ash and Willow trees within this area. (Quantity) Common Name/Botanical Name-Planting Size (60) Oregon Ash/Fraxinus latifolia and(60) Scouler's Willow/Salix scouleriana- 1 gallon At two of the bridge crossings there are open areas along the streams. We recommend planting Willows to fill these areas in. (Quantity) Common Name/Botanical Name-Planting Size [80) Scouler's Willow/Salix scouleriana - 1 gallon Along a significant portion of the park's southern boundary houses and apartment buildings abut the parklands. These buildings dominate views from within the park. This takes away from the 'natural' character of the park. We recommend planting clusters of Douglas Fir and Western Red Cedars along this area to screen the buildings from the park interior and to provide evergreen cover for the park's wildlife. (Quantity) Common Name/Botanical Name-Planting Size (200) Douglas Fir/Psuedotsuga menziesii and(200) Western Red Cedar/Thuja Plicata- 12"-18"height (1 gallon) At the eastern end of the park there are very few trees along the northern edge of the creek. We recommend planting Douglas Fir, Western Red Cedar, Alder, Ash, and Willows along this area to form a continuous grove of trees along the stream. (Quantity) Common Name/Botanical Name-Planting Size [15) Douglas Fir/Psuedotsuga menziesii and (15) Western Red Cedar/Thuja plicata- 12"- 18"height (1 gallon) [25) Scouler's Willow/Salix scouleriana. (50) Red Alder/Alnus rubra. and(30) Oregon Ash /Fraxinus latifolia- 2 gallon 20 9713rept.fnl At the eastern end of the site, north of the path removal of hazardous trees has left a sizeable opening in the woodland adjacent to the pond. We recommend planting Oregon Ash, Hawthorne, and Willows to fill in this opening. (Quantity) Common Name/Botanical Name-Planting Size (15) Oregon Ash/Fraxinus latifolia. (15) Black Hawthorne/Crataezus douglasii._and(M Scouler's Willow/Salix scouleriana- 2 gallon Along Hall Boulevard, in front of the adjacent City Hall and Library building, Sweet Gum trees are planted along the street. This planting stops short of the greenway frontage on the Boulevard. We recommend planting Sweet Gum in the mown grass strip along this frontage to continue the line of street trees. (Quantity) Common Name/Botanical Name-Planting Size (6) Sweet Gum/Liquidambar styraciflua- 3"caliper 21 9713rept.fnl • I / �� ,,� \ ,, �: � , ,v v5�� ,� FAN N O / y' , , i - , , ../. . . \ , „a, �. \, (s)‘, do ,/ C RE E K .„, , , 1,- ‘;\/ / ,. \ .., - , __, ./ , s tib . s;, , ,I , v, -,, , ,- � /ti y PARK „";2._____-,_ ,- .. ,/-- , -- \ ,,. V �� /' \A PARK OR , • , - / x - , GREENWAY \ ,,,, i;' ,� A �, � �� / BOUNDARY \i c' r,% \SPC\ "P , ' Tigard 2000 / WEST STREAM v '9pV0 f / Trees Project PLANTING AREA - A.•'..�� ' I (Area 1) : I %'; Schematic Tree '�,,�ti ;•• 'ublic Work /' •,�, s� Planting Plan . BRIDGE PLANTING AREA ti ••• �ti�� Q. (Area 2)� --, \�j i� \ l�, all Bridge --1 Qom' I • \ J. / t On�__RRou jh'Grass Area \� v . NOTE \ L • ,-.. this map is of ageneralized y V ' C) \l& ' ` R ) �'� 1 ��.A �v y nature and should not be V'S\\ `��i �� \ J A' - A used for detailed measurments. % $�� ! � / , � ' � V f ti, t� i City Hall Z . ��\ Percival Associates P5\\ y \� �/� ; �, Bridge \ / Landscape Architecture 0(13 \� _C� \ ^\ N \, ,e ' iV--� Bridge \\ ,G, �V "�� ! i- \,;- -G� .��. s ' fa-,-; Pond HALL`BLVD STREET TRE LANTING November 11, 1997 t i� V 'l . `�/��I ` ,� `%�j:�,_, "'��., ,,,,;. ,� \ i/ \ A 1 INCH 300 FEET ss SOUTH PROPERTY LINE B F ER P A TINS / Til. \ \' � • f'eam � '� EAST STR AM AND POND PLAITI \ j \ (Area 3) �' _\� ../.Existing Woodland •°%i\7"r ��/�, ` \ \ N , ,N i- ---( > z' /\--,,\--- - "\ ' , \ - ' , HOP! j it • .• ila.gai:: 1 - * *i - \ w....<>....E . Sp ' • • - '-- \ \ s NG AREA f BRIDGE PLANTING \ v 1 --.________(Area 4) \ r�� çCenteril ,\ \ I 1 Ako, c,,I. \ __ -1 H III ' —1 I \ \ , \TA, A ;L(1,1 1\ T j .111111111111 Hi 1 I 7 / 9'2997 tig2lsyslgi\projects\shadfree\shadtre�'apr(fannocrk prt) ! ! I I I I I I CITY OF TIGARD 9713 Tigard 2000 Trees Figure 9 GENESIS - PATHFINDER AND TERRACE TRAILS GREENWAYS (see figures 10 and 11) Site Description: This greenway corridor lies along a wooded stream channel between developed residential properties in the west central area of Tigard. A paved trail runs the length of the Genesis-Pathfinder section of the corridor. A gravel trail runs the length of the Terrace Trails portion of the greenway. Side trails connect the corridor with adjacent neighborhood areas. The woodland in this greenway is all second growth. Alder is the dominant trees species in this corridor. General Recommendations: There are a few open areas immediately along the stream. We recommend that Willow be planted in these pockets. (Quantity) Common Name/Botanical Name-Planting Size (60) Northwest Willow/Salix lucida ssp. lasiandra- 1 gallon There is one moderate sized open area covered with blackberries near the eastern end of this greenway. We recommend that the berries be cut down and Douglas Fir be planted to fill the area. (Quantity) Common Name/Botanical Name-Planting Size (50) Douglas Fir/Psuedotsuga menziesii - 18"-24"tall (2 gallon) Alders along the corridor are a relatively short lived tree. While the trees in the corridor are generally in good condition we recommend in-fill planting with longer lived (climax)tree species. Western Hemlock and Western Red Cedar are climax tree species in this type of woodland. We recommend planting these trees throughout the corridor to begin the process of providing a more stable woodland. (Quantity) Common Name/Botanical Name-Planting Size (200) Western Hemlock/Tsuga heterophylla and(200) Western Red Cedar/Thuja plicata - 12"-18"tall (1 gallon): No specific planting locations are selected for these trees. They will be planted in scattered groups along the entire length of the corridor. 22 9713rept.fnl ST z ��!� -' �I GENESIS/ i� I I ��, �- ,= PATHFINDER 1 _ I lu' i I co , 1 I an - "c . 1 ;,- GREENWAY 14: — - DAR AND HEMLOCK IN-FILL AREA 1" �- "- • • 'F' \A - I v �� FAN , , ,, oi"-1 --- y ' i _ \ j FIR PLANTING AREA y PARK OR � �'� GREENWAY I I \ ,- i �-F-- �� ,�%QJ BOUNDARY • � - )` = iii!,---w:==== 1-1: � j ' wATKiN o � Schematic Tree Iico ./<7------- r � � �� WILLOW PPlanting Plan REA , ,— - - --_ -- i * - , ��_ Tigard 2000 -- , I ,� N C I— •y, ;,r.f 1 — Trees Project 'v� �-r1 ; GR m EL _ _ O D T T _L W 'p ExisUn Trees eat O \ ��S 9 sty i i I C ‹,__ * ‘-'---. 4, ..- , WILLOW PLANTING AREA • ," �,,. , ""�'• N ,� i I NOTE: Nplipt-,,,,opily ,� � ' 0.__- I , I j this map is of ageneralized -1 ,J,, ,e s�i-- 1 ' I I I nature and should not be co used for detailed measurments. �0 \ - i • ; I I i ! Percival Associates �; - „41';.V,•......._ CEDAR AND HEMLOCK IA-FILL'AR r `�,,•; �;ri, qui ' cI�, ; PARK ST __ _PAR Landscape Architecture • I • �� • ! _ �� I November 21, 1997 �J _ �J -- • =.._� Iliv-v 1\ : -, I 1 inch = 250 feet ,, ,, w...<:>...E I 7 i rili .'"-j_____ ____ >� /Tim J— _ 1 �� -- -KlN • �_ s — :\ i C� r D --. --r1--TERRACE TRAILS GREENWAYS 4 'm� (Sed Figure-4 4----- a - -- I , Ato, • Z _ _ CITY OF TIGARD 10\9\97 I:gis\projects\shadtree\shadtree apr(GENESIS prt) 9713 Tigard 2000 Trees Figure 10 L i TERRACE Q' _MARION ST - O GENESIS PATHFINDER GREENWAY TRAILS/HOLLY- �" (See Figure 10) 491 - - —7----- 1 _ Q- .- TREE/ I ! �� :, y �. CREEKSIDE ! `� = GREENWAYS • - Y Existing Bamboo : ,rn `�N �' .� PARK OR �' GREENWAY CO " C/S - — - 0 BOUNDARY C'� m Tigard 2000 ® � - I' I Trees Project ��. mmA Schematic Tree � Planting Plan • Aft or 1 • 4T _ CEDAR AND HEMLOCK IN-FILL PLANTING AREA - ,�i FAIRHAVEN ; Bridge, �� , NOTE - ,\` c� this map is of agenerahzed 1\ •-• nature and should not be ��I • /, �� used for detailed measurments. __ .____ .____ . * - _, . * . • Percival Associates ---- - ---------- Existing Rush •;•: A 414 Landscape Architecture Existing Ivyi4, . Y4 LL W ��mt,' November 21, 1997 / FAIRVIEW LN Q - ••14py ' - 1 inch = 200 feet - . . , . _ ii)- ROSE • cfl VISTA-DR ) a- _ — VIEWMOUNT Steep Slope ._,,,4 - _ 'li � - - -O��O - < ___ _ A I -__ CITY OF TIGARD 1019\97 I\gis,projects\shadtree\shadtree aprtterrace.prtl 9713 Tigard 2000 Trees Figure 11 GENTLEWOODS GREENWAYS (no map provided) Site Description: This group of greenway parcel lies near the eastern edge of Tigard in an area with residential properties, industrial developments, a small farm, and sizeable tracts of undeveloped land. There is little if any public access to these parcels. Until public access is available detailed evaluation of these sites is not possible and tree plantings are not recommended. General Recommendations: No planting of trees are recommended for this site. 23 9713rept.fnl GRANT GREENWAY (see Figure 12) Site Description: This modest sized flat greenway parcel is located just west of old downtown Tigard. Fanno Creek forms the northern border of the site. There are trees scattered sparsely over the site, but most of the area is overgrown by blackberry thickets. Most of the site lies well above the river and has the potential to be developed into an active park site. Planting trees in the upland portions of the site would be best accomplished after a master plan for the site is developed. The southern bank of the creek has few trees. Trees could be planted in this area without interfering with the future use of the site. Planting Recommendations: We recommend planting trees along the edge of the Fanno Creek to form a continuous tree lined corridor. Prior to planting trees blackberries will need to be removed from the planting areas. (Quantity) Common Name/Botanical Name-Planting Size [50) Scouler's Willow/Salix scouleriana. (50) Douglas Fir/Psuedotsuga menziesii. and(50) Oregon Ash/Fraxinus latifolia- 1 gallon 24 9713rept.fnl GRANT ,� , GREENWAY f ' �� CREEK SID PLANTINGPARK OR I' E I G GREENWAY O� BOUNDARY / / Schematic Tree Existing Woodland � Planting Plan vore..2 ` �� Tigard 2000 Trees Project rA 441117411111111111 Ft'V / NOTE: this map is of ageneralized nature and should not be used for detailed measurments. / Percival Associates / . Landscape Architecture / / i / November 21, 1997 / N\ / 1 inch — 75 feet N / W E \/j / S / / / i / / // / / / j /� - / :"Vi'l'i'' / X11\18\97 Lvis\projects\sha• e\s)dtree.aprTGRDVILL.pR) CITY OF TIGARD 9713 Tigard 2000 Trees Figure 12 GREENBURG GREENWAYS (no map provided) Site Description: These two well wooded parcels in northeast Tigard do not present suitable opportunity for planting additional trees. General Recommendations: No tree plantings are recommended for this site. 25 9713rept.fnl HILLSHIRE WOODS GREENWAYS (no map provided) Site Description: These two parcels are located in western Tigard. A high voltage electrical transmission corridor runs through the edge of the westerly most of these two sites. The remainder of the parcels is well covered by second growth Douglas Fir and related species. The sites are steeply sloped and have very limited public access. Most of the greenway boundaries abut directly up to private residences. These sites afford no suitable opportunity for planting additional trees. Planting Recommendations: No tree plantings are recommended for this site. Providing suitable management of these woodlands is a matter which the City will need to come to terms with. The new development along the woodland edges have opened up the trees to the forces of wind and weather. Past experience has shown that there will likely be loss of trees along the perimeter. This presents unique challenges to the City staff. 26 9713rept.fnl JACK PARK, JACK CREEK, SUMMER CREEK AND FOWLER GREENWAYS (see Figure 13) Site Description: This group of parks and green spaces is located in the residential northwestern area of Tigard. Jack Park is the only developed park in this group. The other sites are all natural greenway corridors along local streams. The only trails in these sites are those running through Jack Park and a short dead end section in Fowler Greenspace. Jack Creek runs to the northeast out of Jack Park. It is a well vegetated riparian corridor. No significant opportunities for tree planting where noted in this area. Summer Creek runs to the east out of Summer Lake Park and through Fowler Greenspace. East of 121st Avenue it is a well vegetated corridor and no significant tree planting opportunities were noted. Summer Creek between Summer Lake Park and 121st Avenue is in need of significant trees plantings. However, the City is presently in the process of engaging a consultant to develop engineering drawings and revegetation plans for this area. Therefore, we are not identifying any planting recommendations for this parcel. Jack Park is a small neighborhood park. The triangular shaped park is bordered by Jack Creek on the east, single family residences on the west, and an apartment complex on the north. The majority of the park is covered by mown lawn. A modest size grove of mature Douglas Fir is located in the eastern section of the lawn area. A small creek flows along the eastern edge of the park. Few trees grow along the banks of the creek. Blackberries have become established along some portions of the creek banks in the park. Fowler Greenspace contains a thick riparian woodland along the banks of Summer Creek which runs along the west and south sides of the park. A grass and open wetland area occupies the central area of the park. A short paved trail enters the site from SW 113th and terminates in the center of the site. A thicket of blackberries have grown up along the trail. Planting Recommendations: We recommend planting trees in three areas of Jack Park. We recommend planting a line of Giant Sequoias along the northern border to provide some visual buffering between the park and the adjacent housing. These trees should be planted far enough apart to maintain openings for clear viewing of the park from the adjacent apartments. (Quantity) Common Name/Botanical Name-Planting Size (9) Giant Sequoia/Sequoiadendron giganteum - 8 ft. height We recommend planting deciduous trees (Sugar Maples) around the south, east, and north edges of the basketball court to provide seasonal color and shade for users of the court. (Quantity) Common Name/Botanical Name-Planting Size (12) Sugar Maple/Acer saccharinum 'Green Mountain"- 2 inch caliper 27 9713rept.fnl The banks of the creek along the eastern edge of the park have only a few trees. About one-third the length is covered by blackberry thickets. We recommend removal of the blackberries and planting Alder, Willow and Western Red Cedar. (Quantity) Common Name/Botanical Name-Planting Size (45) Red Alder/Alnus rubra, (30) Scouler's Willow/Salix scouleriana, and[24) Western Red Cedar/Thuja Plicata -2 gallon We recommend removal of the blackberries along the pathway in Fowler Greenspace and planting of Douglas Fir and Scouler's Willow along this area. (Quantity) Common Name/Botanical Name-Planting Size (60) Douglas Fir/Psuedotsuga menziesii and(40) Scouler's Willow/Salix scouleriana - 2 gallon. 28 9713rept.fnl 11,4'-"(-:—� s� \ � i I S\� / V v �-\' 1111 i -- 1 i _ i t • SUMMER LAKE PAR �t , '44„.„ SUMMER. Vii, , fil III : -�' �� /AL " 7��' ■ \ I J AC K �-� v i PARK ...„.....:1-0s Ir.; • ••• �' tP III Y . yo .::: j`•✓ / }' Tigard 2000 1 LAKE7>\ S /� •r.,.•,. '� y \ I Trees Project i� �y PLS , . ER CREEK STU. ARE °,1al � �/ SUM� I �, �P' ' \ �,- w TIGARD 1 (r I i>. �� t,� / �•�� .�� t. \, , �� \� ��\ 2 Z I 1 \A PARK OR Y VILLAGE PARK LN �'��c', �:��. i �, , M T / \� �� 1 , 1 GREENWAY , ca ! A • V MERESTONE CT OMEBGI < 10.1 1 i __ . ai-- <5.q� oR s wINTERLAK�� ••tis., . �/ ,--. z BOUNDARY1111111_�_ , I 11 \ 1 —. \ ,., / -_-�._,_- Exisfng Woo•land and Native Shru•s illiniii ��,,,,,,, - M � Schematic Tree ~ FALCON RISE DR N • .�� .�.,:.�•:i 1 ,_: Planting Plan ty` -4• 46,-... •••••••••-•........... ..........� . .l 2 t I DAW N'S CT 1 a. IIExisting Woodland � 1 pR -- �I�r �1— _ \-11-------1 � `s '�• KATHERINE ST I r- \,---,' (� 1 F �� : 1 ,�� IT IDE PLANTING AREA �a 1 1N r , F i --7,---,----t- i , I }SATNERIgT r \z A V , _-- I ` oo .� etland '$'411--1 �;, I I , IIIII —1 r- - � �}—� i xistin. Woodlan• v' !I I 1 __ , m TE: Q, — -— -i<i'--- ----4- .--)) ---1 NO JACK CREEK e _ ' r—rt ___ __ y _. 1- �� This map is of a generalized sem) I—__7-----( � opo 7" _ 11 v 1 L7/t�/� N. T nature and should not be {{, �� a. =1 - �� " > used for detailed measurments. I-„- - �� to-;- •rte• W il j _ ��, ,. te r l<1 -7---_______L____±___ -- FOWLER GREENSPACE �� . NI / -- �V - �. I I I -_\ , (1_ 1___ _ _ I Percival Associates _1 %,, - - -- T ANN_ — I �) � Landscape Architecture EVERGREEN TREE PLANTING ASI E�► -r- ! ! __ I -----1 -- -- 1 r� 1 - I { ST I 1 �� f--�- - u� 1 �,� �� 1 �� 7 Ia� ;— ! — I November 12, 1997 i S BROOK CT - --. , I - .1 S -_--_ _-_ � \ - T I 1 inch - 400 feet I - JACK PARK a.;, �1% T �y� �—>� � 1 Jj • 1 J •ry f/J _\___,, , cn \Ex stip Douglas Fir_ L) -- to N ___ J �'` ��A! , �'' _ VV eaee� �' �. �i \�i' �I I w...(>..F ______ , _Sw1• CREEK EDGE PLANTING _�_ - j I wIII , \ ---,r � ,�`�� u,; SIT"— ' 1 j � 1, ¢�� s 41 rail" i . - ' • � Inillla — • , 1/ —1 V r—J SW ERROL ST , F- 9 ,---- ERI _- -- I CREEK EDG NTING ;�� a = �P� I-.- - a-'� - ! l RIE I DMPP___- A!' Basketball Court — y,� —— - I ___ TIPPITT PL j .—-- -__- _ / , �1 I r,'�I�i1 _ CITY OF TIGARD DECIDUOUS TREE PLANTING AREA — — — 10\9\9/ I\gis\projects\ _-els -------- k p - shadtree\shadtree aprQack prt) —__- - ___ __ 9713 Tigard 2000 Trees -------------- - ------------ Figure 13 SCHECKLA GREENWAY (see Figure 14) Site Description: This is a small wooded site with a small stream course running through middle. There is a paved trail running through the site to provide a pedestrian connection between the residential areas on the north and south sides of the site. A small area on the northern edge of the site has been disturbed by past construction and a black berry thicket has become established in this area. A section of the stream edge is bare of vegetation and is showing signs of erosion. Planting Recommendations: We recommend removal of the blackberries and planting this area with Western Red Cedar. Along the bare portion of the stream we recommend planting Vine Maple. (Quantity) Common Name/Botanical Name-Planting Size [25) Western Red Cedar/Thuja plicata and(15) Vine Maple/Acer circinatum - 2 gallon 29 9713rept.fnl SCHECKLA PARK Tigard 2000 Schematic Tree Trees Project GREENWAY 1 inch = 50 feet Planting Plan A ,w �i�;� N November 21, 1997 �.a Ls PARK OR NOTE. Percival Associates CITY OF TIGARD ~ GREENWAY w E this map is of ageneralized Landscape Architecture BOUNDARY nature and should not be 11\113\97 l:Vis\projectslshadtreelshadtree.apr(scheckla.prt) s used for detailed measurments. — :b.40 . \ - —...— .t..... " .4111111111141 ,a4..._ ,, .4414... IC„,„, —gip— -N.-- ill ,,444444,4,4444444% Trail -.�.1 ... ` o Q ` stream m z , . z i .1j z e� o AMY .,-"- Z r i Q 7- J ,r a ..-' \ aL cR a SC.°CS w \ i N -,. / / -..,,, i / 7 4-4 / < ( ,---, CT r - ' t, / , REILG S T \ / _.--,, / 'N'N'N,N. ., 9713 Tigard 2000 Trees SUMMERLAKE PARK (see Figure 15) Site Description: This is a community park located on the western edge of Tigard. It is one of the City's larger developed parks. The park contains both developed recreation areas and natural landscapes. The damming of Summer Creek at the western edge of the park formed a small lake (Summerlake) in the center of the site. The lack of water depth and inadequate water flow in the summer leads to poor water quality in the lake during summer months. Immediately around the lake edge, lawn maintenance was restricted a number of years ago and this area has begun to naturalize. A number of trees have been planted within this zone. These trees are beginning to provide some shading of the lake edge. On the south western edge of the lake a natural wetland and sizable woodland of mature Douglas Fir has been preserved. Two small islands are located in the middle of the lake. One is covered by trees and shrubs. The other is covered by grasses. The northern and southwestern areas above the lake are developed parklands. A small play ground is located in the area south of the lake. Paved paths, soft trails, and bridges provide for pedestrian access throughout the park. The western portion of the park has been developed and provides off street parking, restrooms, picnicking areas, a playground, a small ballfield, tennis courts, and basketball court. A small creek emerges from a storm pipe at the southern edge of this area. The upper portion of this creek corridor is bare of any shrub or tree cover. Planting Recommendations: Improvements of habitat around the lake and enhancement of the water quality within the lake are important goals which provide the basis for planting around the lake. We recommend providing plantings along the eastern, southern, and western edges of the lake which will provide a thick and continuous tree cover. (Quantity) Common Name/Botanical Name-Planting Size (50) Scouler's Willow/Salix scouleriana, (50) Columbia River Willow/Salix jluviatilis, (200) Red Alder/Alnus rubra. (75) Western Red Cedar/Thuja plicata, (100) Douglas Fir/ Psuedotsuga menziesii. (10) Cottonwood/Populus trichocarpa. (100) Oregon Ash/Fraxinus laitfolia- 1 gallon We recommend tree planting on the grass covered island. Past plantings on the island have failed due to damage by beaver and nutria. We recommend installing a'chicken wire' fence supported with metal 'T' posts all around the island to prevent critter damage. (Quantity) Common Name/Botanical Name-Planting Size (15) Western Red Cedar/Thuja plicata, (20) Scouler's Willow, and(30) Oregon Ash/ Fraxinus latifolia - 2 gallon We recommend planting groves of evergreen trees in the rough grass areas along the northern bank. These groves will provide habitat for song birds and mitigate the visual impact of the adjacent buildings on that side of the park and still provide views of the lake from the adjacent homes. 30 9713rept.fnl (Quantity) Common Name/Botanical Name-Planting Size (30) Douglas Fir/Psuedotsuga menziesii and(30) Western Red Cedar/Thuja plicata - 18"- 24"height (2 gallon):plant in tight groves of three to six trees of the same species. Along the path leading from Winter Lake Drive to the playground in the southeast corner of the park we recommend installing Red Oaks evenly spaced along both sides of the pathway. (Quantity) Common Name/Botanical Name-Planting Size (20) Red Oak/Quercus rubra - 2"caliper Along the eastern edge of the sidewalk along Winter Lake Drive we recommend planting a row of Tulip Poplars. (Quantity) Common NameBotanical Name-Planting Size (34) Tulip Poplar/Liriodendron tulipifera - 3"caliper:plant centered on the trees adjacent to the street. We recommend planting Flowering Pear trees along the eastern edge of the curved walk at the outfield edge of the ballfield. (Quantity) Common Name/Botanical Name-Planting Size (6) Flowering Pear/Pyrus c. 'Red Spire'- 3"caliper We recommend planting native trees along the 'West Stream'just downstream of the storm pipe outfall. After the trees are planted, it is recommended that the grasses in this area would no longer be mown and that the area be allowed to naturalize. (Ouantity) Common Name/Botanical Name-Planting Size [40) Oregon Ash/Fraxinus latifolia, (15) Western Red Cedar/Thuja plicata, and(20) Scouler's Willow/Salix scouleriana -2 gallon 31 9713rept.fnl 0 ; SUMMERLAKE -(ri_,7/, ,cS'y PARK ( // . ,. , i WAY I ; Tigard 2000 WINTERLAKE GREENWA )Y / (:ee,Figure 1z)zi / � j / y y —1 , , Trees Project IIIIIY_, 7---- ---- \ \ ,,---- i \Z I T 1 \ \ I November 5, 1997 ,,,,-- , ,--- ilIl W— / Q , / ' Cy —�, � \A PARK OR _ Stream -� \ --- GREENWAY -_G(��C I LAINDLTj;_\ ,___\r__\<f' LAN�ING�,AREA BOUNDARY / �'• • - --J �i�1._ — — — �� \�j - �" T� i Schematic Tree \ �' ��, �' rte— �� ,r ,/� �� A✓ / NORTH SHORE ✓ i - S ' PlantingPlan WEST SHORE ��1 //j,, - j L : - 1 I I r---T' I /#e" i �1 '°. ‘ Ian -<(/ � , 1• Lake - `' ' '`�� rfir //// • - viii '3. • - ', EDG_ EWATER MI i j/, Bridge . .r — - --- Tennis Courts • r �� /t/ Ci i HT O/y � ?,aryl / Basketball Courts "' /��//�I; ^ , if . - ��- 9n ----- --- _ � ti. ' ��l///i• � i'f �� %.��♦ ' . iirts1/4h,Lake ,��Cill I _�� ;la •roun.� /, NOTE: • . ' �� _% \� • ♦♦♦�1.i4 r"! this map is of ageneralizedrg .f. Wet Meado ,,� `�•♦'�� EAST SHOREala rourid ♦ 1j �� nature and should not be 1 IT7 Grass Area Area 41,„,`1 `� .. ® % cS) I used for detailed measurments. �� si /iii — 1 7J • i'- �. SOUTH SHORE- G 1 1. Percival Associates 1 \ e OUTFIELD TRAIL AREA• "-_-.1� Existing Woodlan OA•K TREE PLANTING • 7ra,, j Landscape Architecture ilt, •• ... :iiir • moi . •',\` •y, 'Shel er i i • • r Sidewalk /4/ , ; / Restroom Residence ' Grass Area ,'GRr�, i�* tom, Stream C• 11 1 INCH = 200 FEET • .1.. 4 1 T. WEST STREAM)AREA• - .. C� G, N �.. Parking Lot g� . . , �O 0? -- -__, $TREET'TREE PLANTING- lift: — ' 1 w-.4:›-E LAKEL !� PL , `()CI'' ♦ i _ -- ---- /� I -__-- . ei I 9‘2919�ig2/sys\gis\projectslafiedtree\shadtree.apk(smmr+eke p+t� --— o�[ CITY OF TIGARD 9713 Tigard 2000 Trees w Figure 15 TIGARD STREET GREENWAY (see Figure 16) Site Description: This greenway runs north-south along Fanno Creek,just west of Interstate 217, in north central Tigard. A full stand of Ash and other riparian vegetation follows the course of the stream. However, between this narrow wooded corridor and the path along the west side of the greenway, past construction activities have removed the tree cover. This area is now open and covered by a monoculture of the invasive Reed-Canary Grass. Planting Recommendations: We recommend planting trees which reestablish the native riparian woodland cover throughout the Canary Grass area. (Quantity) Common Name/Botanical Name-Planting Size (150) Oregon Ash/Fraxinus latifolia. (100) Scouler's Willow/Salix scouleriana. (50) Northwest Willows/Salix sessilifolia. (100) Red Alder/Alnus rubra. (25 Western Red Cedar /Tuja plicata. and(25) Douglas Fir/Psuedotsuga menziesii - 1 gallon 32 9713rept.fnl V� Tigard St. li Greenway ' Tigard 2000 Trees Project \A GREE WAY BOUNDARY Schematic Tree Planting Plan �, �f WEST STREAM PLANTING AREA - .,- • •.• • : NOTE: / - -�.-- this map is of ageneralized . . nature and should not be —mil .�,. f _ ,2 -•. used for detailed measurments iim •_ ' Reed Canary Grass U 'I Percival Associates ' c' Landscape Architecture Ll.•-.- 1 0 0 F.." —... •I:0 . ' November 20, 1997 ' : + 1 INCH = 100 FEET W j1 N [; • w c .. .p_ . • .. .. • • , .: . . , s •. , ;iiI. 0) , . " . , ._________ _ _ _____ __ ________ -- ---- ....... .. Bridge '# /� -A 1 i -- — 11\12\97 tig2\sys\gis\projects\shadtree\shadtree.apr(tigardst.prt) ___--- TI GAR fl ST CITY OF TIGARD -- 9713 Tigard 2000 Trees -- --- Figure 16 WINTERLAKE GREENWAY (see Figure 17) Site Description: This site is located west and upstream from Summer Lake Park. Summer Creek meanders east to west through the site. This parcel is a wide corridor paralleling the course of the creek with a short stub of land extending to the north near the eastern end of the greenway. Most if not all of the site could be classified as wetland. Seasonal high stream flows spread out to cover all but the highest land along the edges. The southern banks of the creek are well covered by trees. The area north of the creek, including the small spur, is barren of trees except for a few clusters of Willow and Ash. There is evidence that some previous efforts have been made to plant trees on the northern areas. At the time of our site visits nearly all of these trees had died. The area where the trees were planted is too wet for the trees to survive. At the western end, north of the stream course, a new development has installed some sparse riparian plantings and has established a water quality facility in or adjacent to the Greenway. The plantings are just completed and we could not evaluate the successfulness of these efforts. Planting Recommendations: Our goal for this Greenway is to establish a continuous and full woodland on the northern shore and to fill in the few open areas on the south side of the creek. The high water table throughout most of the corridor makes the use of Willow species useful in most of the planting areas. However, we are recommending planting of Ash along the wetland edges and Cedar and Alder in the relatively drier riparian areas along the northern edge of the corridor. (Quantity) Common Name/Botanical Name-Planting Size (300) Scouler Willow/Salix scouleriana, (300) Pacific Willow/Salix 1. lasiandra, (300) Northwest Willow/Salix sessilifolia. and(300) Columbia River Willow/Salix fluviatilis - Live Cut Stems, 30"-36"long, with eight to ten(+) viable growth buds in the upper 50%of the stem. Bury at least 12"deep into soggy soils where indicated in field. (200) Oregon Ash/Fraxinus latifolia, (50) Scouler's Willow/Salix scouleriana, (50) Red Alder/Alnus rubra, (50) Western Red Cedar/Thuja plicata - 1 gallon 33 9713rept.fnl n Winterlake/ I L Castels at Brittany/ Q '135th Ave Greenways I� I , M ...::, Tigard 2000 •-- Trees Project SW HAWK'S -- _ PARK OR - - GREENWAY — – – J BEARD ..--- BOUNDARY a- + Steep Slopew II ---- • 1�, • Schematic Tree /0 !u) ,P !� �`i , Planting Plan NORTH PLANTING AREA ,r \ _ WAY ExistingSedgeCO • / ,...-------- �' J ‘,.,./ 1 �•. —* '`. •:• �� -.�? Steep Slope + • ��, � II II ----- ---- /�� / Existing Trees i NORTH STREAM SIDE PLANTING AREA, .�J �.i I NOTE - —__--___ 9 / • ..I i- -- --• this map is of ageneralized • • . ..............................•• �r ; nature and should not be Ili'/ • • used for detailed measurments1 ii . Water Quality Wetland Percival Associates Existing Trees • ' _____ '- Jo"' ,,,.�-� �;�J� Landscape Architecture = Bridge .may_..-►�—: - ;►�� .• . :. r `��• Q — �I/�� November 20, 1997 ��-417, • • • • • . :�••-- Stream - • , /�. ,s'' �fi: •. 1 INCH = 150 FEET SII�i�. • • /�//�/l // -azo I''-'''# ' W E SOUTH STREAM SIDE PLANTING AREA — �� – Y SUMMER LAKE PARK -- • --- ----- -- — _ -- 0 (See Figure 15) .,...7 . . -- • W - > : CITY OF TIGARD 11\12\97 tig2tys\gis\projects\shadtree\shadtree.apr(Wntrlake.prt) 9713 Tlgard 2000 Trees -- Figure 17 WOODARD PARK (see Figure 18) Site Description: This park is located in central Tigard along Fanno Creek. The park is composed of mown lawn with a good cover of mature deciduous trees. Along the banks of Fanno Creek rough grass and riparian vegetation predominates. While much of the stream course is lined by trees there are significant open areas where blackberries are becoming established. Planting Recommendations: We recommend filling in the open areas along the creek side to provide a continuous corridor of trees. There is no irrigation system in the park so plantings will need to be sized the same as they would be in a natural area (Quantity) Common Name/Botanical Name-Planting Size (10) Douglas Fir/Psuedotsuga menziesii and(30) Western Red Cedar/Thuja plicata - 18"- 24"height (2 gallon) (50) Black Hawthorne/Crataegus douglasii, (75) Oregon Ash/Fraxinus latifolia, and(30) Red Alder/Alnus rubra- 1 gallon 34 9713rept.fnl • f--' / . C„,)� WOODARD ---_�% J )_______� 1 PARK Tigard 2000 0 � , Trees Project I ,.-- rA:t \, -' ' i �,,� PARK OR GREENWAY / BOUNDARY • • NORTH CREEK PLANTING AREA Schematic Tree Lawn Area with Scattered Trees lii Nf� Planting PIan WEST CREEK PLANTING AREA • �1► —- Access �— . In • �� fin►t Maintenance v \ �I//,�/�/�n ii:rliiiir garOr . A �� _ �i�i�,l�i ' . . '" ; NN; i. EAST CREEK PLANTING-AREA ' • .• • ++ n NOTE' SOUTH CREEK PL�.NTING AREA__, )1111k.' . , • '. Ill lI llin -_ ,, i this map is of agenerahzed = (ilitI ' nature and should not be �h \ t used for detailed measurments Los Existing Woodland j 4} h i ' •• - • 111 �� Percival Associates U ir ,�� m m�� Ill i I ►��, Landscape Architecture i , -5.\-7-oilltil, Vit. y Bridge November 11, 1997 i i Sidewalk 1�///III///�, . • \ , / — „ wilig Trail _ 1 inch = 100 feet l � N , , Cil").\ - ON s I i ,'.1- i. CITY OF TIGARD 10'9\97 I:\gis\projects\shadtree\shadtree.apr(woodwa rd.prt) 9713 Tigard 2000 Trees — — - — Figure l 8 114th STORM DRAIN OUTFALL (see Figure 19) Site Description: A new storm drain outfall for 114th Street needed to be constructed in a greenway at the end 114th Street. Construction activities lead to he removal of existing vegetation in the area where the pipe and outfall were constructed. The surrounding vegetation was a combination of grassland and Ash and Hawthorne woods. Most of the disturbed area was covered by blackberry thickets prior to construction. Planting Recommendations: We recommend planting native tree species in groves to help discourage the regrowth of the blackberries. An access corridor must be kept open to the newly installed manholes. Tree plantings must be kept out of this corridor. (Quantity) Common NameBotanical Name-Planting Size (20) Black Hawthorne/Crataegus douglasii, (50) Oregon Ash/Fraxinus latifolia, and(40) Douglas Fir/Psuedotsuga menziesii- 1 gallon 35 9713rept.fnl 116TH AVE . . Existing Woodland 114TH STORM • • • 2DRAIN • •Access route / OUTFALL ♦ HAWTHORNE AND ASH PLANTING . -Nir e . g s I A. ...u.v.w .... _-, . e.•, \P Tigard 2000 �4` Trees Project C--° , ,. Existing Woodland /' • �� \ ,� �� j Schematic Tree • •• .Grass:;) Planting Plan •Open .• • . ,\ • •k Manhole Manhole % WILLOW PLANTING AREA 04 .`moo.' • • �11111111it!1•1'. i�idl� ll • =/".-- ��'� �� DOUGLAS FIR PUNTING NOTE: i • • • •". (�i II • �r``•'� ,, this map is of ageneralized • • J �,:, + '��•� `` New Storm Pipe Outfall nature and should not be �_ 41.dlt'Jhll�) lI�'i�- i1` - used for detailed measurments. �► X 1� '��• �•• Abandon 8"Pipe Percival Associates Landscape Architecture s- 1 inch = 20 feet / x ''�— Fanno Creek / N \ 11 E _.. / S 1Maar 1 IL1 A CITY OF TIGARD 9713 Tigard 2000 Tree Figure 19 e Appendix A - Tree Planting Recommendation: Quantity and Cost Summary APPENDIX A - Tree Planting Recommendations: Quantity and Cost Summary location tree common name size quantity unit cost total Benchview Greenway Douglas Fir 1 gal. 75 $ 9.00 $675.00 Black Hawthorne 35 $ 9.00 $315.00 Western Crabapple 35 $ 9.00 $315.00 subtotal = 145 $1,305.00 Castlehill Greenway Douglas Fir 50 $ 9.00 $450.00 Western Red Cedar n25 $ 9.00 $225.00 Red Alder 75 $ 9.00 $675.00 Black Hawthorne 50 $ 9.00 $450.00 Ponderosa Pine 36" hgt. 70 $ 12.00 $840.00 subtotal = 270 $2,640.00 Colony Creek Greenway Columbia River Willow cutting 500 (not $ 1.50 $750.00 in totals) Red Alder 1 gal. 120 $ 9.00 $1,080.00 Oregon Ash 4' hgt. 100 $ 11.50 $1,150.00 subtotal = 220 $2,980.00 Cook Park Red Oak 3" cal. 40 $ 300.00 $12,000.00 Red Alder 15 $ 250.00 $3,750.00 Douglas Fir 4' hgt. 70 $ 35.00 $2,450.00 Western Red Cedar 4' hgt. 70 $ 35.00 $2,450.00 Cottonwood 6' hgt. 15 $ 23.00 $345.00 Oregon Ash 6' hgt. 20 $ 23.00 $460.00 Douglas Fir 1 gal. 475 $ 9.00 $4,275.00 Western Red Cedar " 75 $ 9.00 $675.00 Appendix A - 1 9713appn.00a location tree common name size quantity unit cost total Ponderosa Pine 50 $ 9.00 $450.00 Black Hawthorne 1 gal. 200 $ 9.00 $1,800.00 Pacific Crabapple 150 $ 9.00 $1,350.00 Willow(all) 340 $ 9.00 $3,060.00 sub-total = 1520 $33,065.00 Dover Landing-Pick's Landing-Willowbrook Farm Greenways Douglas Fir 200 $ 9.00 $1,800.00 Western Red Cedar 200 $ 9.00 $1,800.00 Western Hemlock 200 $ 9.00 $1,800.00 sub-total = 600 $5,400.00 Englewood Park Douglas Fir 75 $ 9.00 $675.00 Oregon Ash 35 $ 9.00 $315.00 Red Alder 35 $ 9.00 $315.00 Scouler's Willow 2 gal. 20 $ 15.00 $300.00 Red Alder 2" cal. 28 $ 160.00 $4,480.00 sub-total = 193 $6,085.00 Fanno Creek Park Oregon Ash 1 gal. 60 $ 9.00 $540.00 Scouler's Willow 140 $ 9.00 $1,260.00 Douglas Fir 60 $ 9.00 $540.00 Western Red Cedar 215 $ 9.00 $1,935.00 Oregon Ash 2 gal. 45 $ 15.00 $675.00 Scouler's Willow 35 $ 15.00 $525.00 Red Alder tf 50 $ 15.00 $750.00 Black Hawthorne n15 $ 15.00 $225.00 Sweet Gum 3" cal. 6 $ 300.00 $1,800.00 sub-total = 626 $8,250.00 Appendix A - 2 9713appn.00a location tree common name size quantity unit cost total Genesis-Pathfinder and Terrace Trails Greenways Northwest Willow 1 gal. 60 $ 9.00 $540.00 Western Hemlock 200 $ 9.00 $1,800.00 Western Red Cedar 200 $ 9.00 $1,800.00 Douglas Fir 2 gal. 50 $ 15.00 $750.00 sub-total = 510 $4,890.00 Grant Greenway Scouler's Willow 1 gal. 50 $ 9.00 $450.00 Douglas Fir 50 $ 9.00 $450.00 Oregon Ash 50 $ 9.00 $450.00 sub-total = 150 $1,350.00 Jack Park, Jack Creek, Summer Creek, and Fowler Greenways Giant Sequoia 8' hgt. 9 $ 100.00 $900.00 Sugar Maple 2" cal. 12 $ 180.00 $2,160.00 Red Alder 2 gal. 45 $ 15.00 $675.00 Scouler's Willow 70 $ 15.00 $1,050.00 Douglas Fir 60 $ 15.00 $900.00 Western Red Cedar 24 $ 15.00 $360.00 sub-total = 220 $6,045.00 Scheckla Greenway Western Red Cedar 25 $ 15.00 $375.00 Vine Maple 15 $ 15.00 $225.00 sub-total = 40 $600.00 Summerlake Park Willows (all) 1 gal. 100 $ 9.00 $900.00 Red Alder II 200 $ 9.00 $1,800.00 Western Red Cedar 1 gal. 75 $ 9.00 $675.00 Appendix A - 3 9713appn.00a location tree common name size quantity unit cost total Douglas Fir 100 $ 9.00 $900.00 Cottonwood 10 $ 9.00 $90.00 Oregon Ash 100 $ 9.00 $900.00 Willows (all) 2 gal. 40 $ 15.00 $600.00 Western Red Cedar 60 $ 15.00 $900.00 Douglas Fir 30 $ 15.00 $450.00 Oregon Ash 70 $ 15.00 $1,050.00 Red Oak 2" cal. 20 $ 180.00 $3,600.00 Tulip Poplar 3" cal. 34 $ 275.00 $9,350.00 Flowering Pear 3" cal. 6 $ 275.00 $1,650.00 sub-total = 845 $22,865.00 Tigard Street Greenway Oregon Ash 1 gal. 150 $ 9.00 $1,350.00 Scouler's Willow 100 $ 9.00 $900.00 Northwest Willow 50 $ 9.00 $450.00 Red Alder 100 $ 9.00 $900.00 Western Red Cedar 25 $ 9.00 $225.00 Douglas Fir 25 $ 9.00 $225.00 sub-total = 450 $4,050.00 Winterlake Greenway Willows (all) cuttting 1200 $ 1.50 $1,800.00 (not in totals) Scouler's Willow 1 gal. 50 $ 9.00 $450.00 Oregon Ash 200 $ 9.00 $1,800.00 Red Alder 50 $ 9.00 $450.00 Western Red Cedar 50 $ 9.00 $450.00 sub-total = 1550 $4,950.00 Woodard Park Appendix A - 4 9713appn.00a location tree common name size quantity unit cost total Red Alder 1 gal. 30 $ 9.00 $270.00 Oregon Ash 75 $ 9.00 $675.00 Black Hawthorne 50 $ 9.00 $450.00 Douglas Fir 2 gal. 10 $ 15.00 $150.00 Western Red Cedar 30 $ 15.00 $450.00 sub-total = 195 $1,995.00 114th Storm Drain Outfall Black Hawthorne 1 gal. 20 $ 9.00 $180.00 Oregon Ash 50 $ 9.00 $450.00 Douglas Fir 40 $ 9.00 $360.00 sub-total = 110 $990.00 GRAND TOTAL = 7644 $107,460.00 Costs indicated above are calculated to include all costs associated with the furnishing and proper installation of plantings. Associated costs, such as those for site clearing, have been added into the unit prices. However,these are only estimates of probable costs and actual bid costs are likely to vary from the figures provided above. Appendix A - 5 9713appn.00a � Appendix B - Tree Planting Details � 'I APPENDIX B: Planting Details TREE PLANTING IN NATURAL AREAS (Details A and B) 50D/WEED MATERIAL TO BE REMOVED AND 3'-0' PLACED OUTSIDE DIAMETER EXISTING MULCHED AREA. GRADE / 11 �1 I � _'� Ill Er III _1 ROOTBAL LDEPTH -1' In ��/� AMMO-11111 EXCAVATED FOR SOIL ; 1�d 1 =Al MINIM llhI SUITABLE USE _ � / AS BACKFILL UNDISTURBED >100 J1,111 ,Ill IIID SUBGRADE SCARIFY EDGES AND BOTTOM OF HOLE DIAMETER OF ROOTBALL .1' A NATURAL AREA PLANTING HOLE not to scale section 36' LENGHT - I/2' DIA. WOODEN DOWEL 12' LENGTH SURVEY PAINTED WHITE. DOWEL REQUIRED ONLY TAPE TIED TO DOWEL FOR TREES LESS THAN 4' TALL AT TIME OF / INSTALLATION. `5 TREE OR SHRU�1 ` 24' BACKFILL HOLE , WITH EXISTING SOIL SOIL 2' DEPTH OF MULCH BERM �� EXISTING GRADE 3.i /f __ 717.2 ......4.4.„2.*A.VA" ",. 4 �I=� ME -"7111111 I SET TOP OF ; i , 11111 1V, Zlika it !II 12' RSURRO NDINGOTBALL 1' AGRADE 'BOVE I UIII-� I'III', 11 I - I = 1I-�11 1� III- i' 11 I I I ND I STURBED SUBGRADE / 3'-0' / DIAMETER B NATURAL AREA TREE PLANTING not to scale ?-,:- -=. -•..,-.. section Appendix B - 1 9713appn.00b TREE PLANTING IN LAWN AREAS (Detail C) CO' R -STRAIGHT' TREE TIE e 44k Irf GAL-V. STEEL WIRE: INSTALL 2X2 WOOD STAKE: WITH SLACK TO ALLOW 4' OF FREE LATERAL DOUGLAS FIR, (3) MOVEMENT PER TREE 1 4 FT. DIAMETER CIRCLE OF i _ BARK MULCH 3' DEEP. = w I 0 1 I I REMOVE SOD BEFORE 0 w NM' PLACING MULCH til�� Putival EXISTING FINISH Q 0 GRADE 'Ad BESSAV M MSS It e. MH21-__17.1 i i I! E-1: 1! -J _,,,__-_,1 1-i / _I- p w -. O -Ili-!�� ,--____I, ,�, '11i_ 1=i 1!_i III-i 11=1 I i-111-11 -!11-, B =!I I} !' -1 -1 IL EXCAVATED SOIL USED III I11 1111 ' it AS BACKFILL MATERIAL - 1 IIT- 711 JI i •"-! -I r_ ROOTBALL: REMOVE I TWINE, BURLAP, AND ROOTBALL DIAMETER WIRE BASKET FROM PLUS 6' TOP AND SIDES i C TREE IN LAUJN not to scalei -RE „ section Appendix B - 2 9713appn.00b Appendix C - Implementation Phase 1 : Estimate of Probable Construction Costs APPENDIX C: Implementation Phase 1: Estimate of Probable Construction Costs (Cook Park, City Hall/Fanno Creek. and Summerlake) Item quantity unit unit cost total I. COOK PARK A. Mobilization 1 each $500.00 $500.00 B. Bond 1 $400.00 $400.00 C. Clearing Blackberries 1 " $1,200.00 $1,200.00 D. Planting 1. Mulch 980 " $1.50 $1,470.00 2. Marking Stakes (small material) 820 " $1.50 $1,230.00 3. Plant Material (excavating hole and providing plants in place) a. Rough Grass Area North of Soccer Fields i. Douglas Fir (4' hgt.) 70 " $33.00 $2,310.00 Psuedotsuga menziesii ii. Western Red Cedar (4' hgt.) 70 " $33.00 $2,310.00 Thuja plicata b. New Wetlands East of Entry Road i. North Shore of Ponds (a) Douglas Fir (1 gal.) 300 " $7.50 $2,250.00 Psuedotsuga menziesii ii. East of Ponds (a) Scouler's Willow (1 gal.) 50 " $7.50 $375.00 Salix scouleriana (b) Northwest Willow(1 gal.) 30 $7.50 $225.00 Salix sessilifolia (c) Columbia River Willow(1 gal.) 30 each $7.50 $225.00 Salix fluviatilis (d) Douglas Fir (1 gal.) 75 $7.50 $562.50 Psuedotsuga menziesii (e) Western Red Cedar (1 gal.) 75 " $7.50 $562.50 Thuja plicata Appendix C - 1 9713addn.00c Item quantity unit unit cost total (iii) South Shore of Ponds (a) Cottonwoods (6' hgt.) 15 $30.00 $450.00 Populus trichocarpa (b) Pacific Willow(1 gal.) 100 " $7.50 $750.00 Salix lucida ssp. lasiandra (c) Scouler's Willow (1 Gal.) 100 " $7.50 $750.00 Salix scouleriana c. Picnic and Boat Launch Area Along Tualatin River(southern edge of park) (i) Grass Picnic Area (a) Red Alder (3" caliper) 15 $250.00 $3,750.00 Alnus rubra (ii) River's Edge (a) Columbia River Willow (1 gal.) 30 " $7.50 $225.00 Salix fluviatilis (b) Oregon Ash (6' hgt.) 20 " $30.00 $600.00 Fraxinus latifolia Cook Park Total = 980 $20,145.00 II. CITY HALL /FANNO CREEK A. Mobilization 1 $100.00 $100.00 B. Bond 1 $20.00 $20.00 C. Planting: Mulch, staking, and provide trees Sweet Gum (3" caliper) 6 each $300.00 $1,800.00 City Hall/Fanno Creek Total = 6 $1,920.00 III. SUMMERLAKE PARK: Native Tree Planting A. Mobilization 1 $400.00 $400.00 B. Bond 1 $550.00 $550.00 C. Mulch 845 " $1.50 $1,267.50 Appendix C - 2 9713addn.00c F------y Item quantity unit unit cost total D. Marking Stakes (small material) 805 $1.50 $1,207.50 E. Fence at Island 1 $500.00 $500.00 F. Plantings: 1. East, West, and South Lake Shore a. Scouler' Willow(1 gal.) 50 each $7.50 $375.00 Salix scouleriana b. Columbia River Willow(1 gal.) 50 " $7.50 $375.00 Salix fluviatilis c. Red Alder (1 gal.) 200 " $7.50 $1,500.00 Alnus rubra d. Western Red Cedar(1 gal.) 75 $7.50 $562.50 Thuja plicata e. Douglas Fir (1 gal.) 100 each $7.50 $750.00 Psuedotsuga menziesii f. Cottonwood (1 gal.) 10 " $7.50 $75.00 Populus trichocarpa g. Oregon Ash (1. gal.) 100 " $7.50 $750.00 Fraxinus latifolia 2. Island Planting a. Western Red Cedar(2 gal.) 15 $15.00 $225.00 Thuja plicata b. Scouler's Willow (2 gal.) 20 " $15.00 $300.00 Salix scouleriana c. Oregon Ash (2 gal.) 30 " $15.00 $450.00 Fraxinus latifolia 3. North Bank Planting a. Douglas Fir (2 gal.) 30 " $14.00 $420.00 Psuedotsuga menziesii b. Western Red Cedar(2.gal.) 30 " $14.00 $420.00 Thuja plicata 4. Storm Pipe Outfall at Winter Lake Drive (West Stream) a. Oregon Ash (2 gal.) 40 " $14.00 $560.00 Fraxinus latifolia Appendix C - 3 9713addn.00c Item quantity unit unit cost total b. Western Red Cedar (2 gal.) 15 $14.00 $210.00 Thuja plicata c. Scouler's Willow (2 gal.) 20 $14.00 $280.00 Salix scouleriana Summerlake Park-Native 785 511.377.50 Tree PlantingTotal IV. SUMMERLAKE PARK: Ornamental Tree Planting A. Mobilization 1 $100.00 $100.00 B. Bond 1 $100.00 $100.00 C. Planting: Plants, Mulch, and Stakes 1. Tulip Poplar (3" caliper) 34 $300.00 $10,200.00 Liriodendron tulipifera 2. Flowering Pear (3" caliper) 6 $300.00 $1,800.00 Pyrus c. "Red Spire" 3. Red Oak (3" Caliper) 20 $300.00 $6,000.00 Summerlake Park- 60 518.000.00 Ornamental Tree Planting Total GRAND TOTAL = 1831 $51,442.50 • Appendix C - 4 9713addn.00c . • xs„.../...... J liul I Roma, Co IlrookIno ton CO .... - /.• .N:' / ( .13'.. -, /...4:9/ ,e.,,,,.„ •.:, .,.,, •,• ...... ..( ,./ f>/-'- .. .•' r--(1-- t., ,....44/ ( ill . ...",.......--....,.......... '''''........_.Z .,_.......................L.............„..............s., .,.,4-.*. / ic ." SV , • 1 g, . 1. a 1 at 1 ). Upper Farina . 1 K...... -- •-----------1"--j) 11-.411:tar .., --- .."-- 4 9 g 1 7 .0,s 4 i ......... .,.. ....---. : . - e. n•*1 ..,,e7' I ...0°' . • i, / -7.--- - ....,...:,,, ..:,... " ...., 1 Middle Fanno - , - - Ash _.., All ! ........ _,._.,e ...---- . s— --.,_ : _.. .--,...--- lteon ‘.. . ";,4:1,..:_L. _ i- Av i , . ......-1--"; N,:.; PRed Rock .fr.•.6.- - > t\ , .. ' ...-- Summer , -* , i .....- ,,,,...../ - ,,... tit. , . .. , —9 ... '. ‘.. ' , .. ...i.,.._,/ .. ,, : :, ....,.. ( _ - . is), 7 ' - j i f li ,...„ ei Rrt.. gilli — 4t i/ , r _ 'II < -, / • Boll / Kreuger •' ) _ _F,-- _ 011he i Derry -Deli Lower Farina, . -, - y __ it r iftt...... r ,s. I Bow Oor y (I ). . er 0 / 4 t e.., "V ....- 1 i 11 5.- 1-----'"-.------N -rj i_ —.— '• .01. I I Tuolotin River 1 1 I; I _ 71.....,,. gm i A VIStiti .: ••111316 t, Figure 15 High-Priority Project Locations Fanno Creek Watershed Management Plan Section V 69 i 1 0. Table 17A 00 High-Priority Water Quality and Flood Management Projects a 14 v Ai sii e It - 3 6 1 i Comments w-, O Vo t 6 Stream Reach Details F-4 Fenno-Fano Creek Orly*Sank Stabilization Stabilize the sire embank and bad at the Fanno Creek bend Tigard Protection of Hath of Reeling MD(t 50 Ml 58 100 N dpon►waded ' F9 Fenno-Woodard Park Enhancement clivi Protect existing trail from belrfg undermined ITgard) Pima natty•vegetation in riparian corridor(196,000 sq ft) Mer park maintenance IMall a bloeww on floodplain fringe behind Tigard mdtwtrlat Tigard Drectk«(ses non ttnq Park to treat parking lot runoff(parallel to edge of perking lof) 48 160 YN pest Improv«waterm quality l shading,sat ring streamre erosion Replace or cover exposed sewerkn« 0191 Reduces*tormenter pollutants pi entering Removes Wendel thee)of pipe break F-12 Fenno-Engtewood Park Enhancement Enhance existing pond by planting native vegetation(45,000 •q 11) Enhance/create forested&shrub/scrub wetland,on 715,000 Englewood Park limited use sq ft of 61 2349 Y Tigard Improves water quality by shading,reducing erosion Open disturbed floodplain by scraping and replanting Slope back stream banks 3800 In and stabilize bed along OIg t EnDehances wildlife habitat 1000 M Enhances wftdlite P.14 Fenno-Fenno Creek Floodplain Enhancement Increase floodplain storage and enhance 150,000 so ft of Improves water quality by shading,reducing erosion wetlands at old Fans WWTP siva west of the creek by Svbt Decreases locoing Impacts removing or room/curing berm(south of Denny) 452 Y USA Benefits posher•"MIS for temperature,dissolved ' Pent native vegetation in riparian condor (owner) oxygen,algae,becterta.total phosphorous,and other F-17 Fenno•Rambler Bohmann Pond 1 Stream Enhancement_ nutrients _ Difficult but feasible access Conon existing pond to an oil-line 90.000 sq ft wetland with Increase flood storage upstream(OES and Tower Ske) > low flow creek in historic meanders(requires excavating 2-3 54 509 N A Neighborhoodfor Association in condition(FCNA)ionagreement and feet of sediment) FCNA support for Charge in condition After landscape practices near the water(see non- structural programs) F-20 Fenno-OES Marsh/Tower Sits Flooding of hones hen Increase floodplain function by lowering str•ambank and some marsh areas to reconnect system(300,000 sq It) Decreases flooding Impacts Add In stream structure(large woody debris and nxk riles) 60 1609 YN SU Benefits Pie levels for temperature,dissolved to raise the str•amDed along 2200111 USA oxygen,algae,bacteria.total phosphorous,and other Plant natty,vegetation throughout nutrient removal SY-t Sylvan-RaflQhwood Park to Bancroft Pond Allow ecological succession to occur uninterrupted in the Benefits are long term marsh USA Dredge Bancroft Pond to reduce homeowner flooding 57 350 Y 000T Will take 6.6 years to sty successional charges Acquits floodpron•properties when available Flooding of two homes hen RR-1 Red Rock-Railroad to Hwy 217 Stream Enhancement Plant natty*vegetation in nparian corridor Hwy 217 to , Huntzger(10,000 sq ft) 58 220 N Tigard Improves crater quality by shading,reducing erosion,and Geste forested/shrub-scrub wetlands for water quality to either side of stream on vacant lands(70,000 sq h) ova bbnitration Plant native vegetation alrg_th•'triangle'pond edge SP-3 Ash•Washington Square Pretreatment•A-1 Install compost filter or other treatment with high flow bypass between Toys-R-Us 1 LP Gas to pretreat stonmwater draining 28 93 N Tigard Reduces siormwater pollutants entering stream 31 acres &I Sall•Confluence to>'i EnhancementPlant native vegetation In riparian corridor(up to 72nd Ave Tigard . arid along I.5) Owner Protect Porn spills,dumping,and trash In parking fol area 46 34 N Alter highway maintenance practices(see non-stnutural COOT(coinpogroms)bee fence with solid 2'high bawally Total Cost OIQ! 5896 Approximately 5.9 million ,. ...' •Lead responsibility in bold. USA•Unified Sewerage Agency, BES•Bureau of Environmental Servicer ODOT:Or FCNA-Fenno Creek Neighborhood Association; c -other local governments pOH Department of Transportationcivil Fanno Creek Watershed Management Plan Section V 70 • Table 178 Medium-Priority Water Quality and Flood Management Projects • s e 's • S Ai g it Comments 0. V u a. Stream Peach Details F-1 Fenno•Mouth to Durham Rd. Construct a wetland or swat*(80,000 sq ttpo pretreat stormwater from 85th at Thomas Dairy She/Durham 57 332 Y USA Greenway acqushbn of unprotected IbodpWn Wastewater Treatment Plant Tigard F! Fenno•Durham Rd.to Bonita Stabilize too II1 of eroding stream banks on the arm site located just downstream of the Ball Creek confluence 69 199 N Tigard improves water quality by shading,reducing Protect bank from livestock H appropriate OigY erosion F-e Fenno•Red Rook to Hall Blvd. Stabilize 500 15 of streambank at farm she just east of HallProtect or acquire properly(gree spaces) Blvd 48 180 N � Improves water crudity by shafting,reducing Plant native vsoetation in riparian corridor(35.000 sq 11) 01:11erosion F-7 Fenno•Hatl Blvd(Tigard City Hall)to Main Street Plant native vegetation in nparian candor(3200 HI) Aper park rnaintenartce practices(see non. Stabilize stream banks and bed in areas that threaten to 49 416 Y Tigard structural program) expose sewer lines or may undermine structures,pathways olg`s Improves water quality by shading,reducing (estimated 1000 linear teed erosion F-12 Fenno-Oreenway Park,Koll Center Wetland Plant native vegetation in npenan corridor ane wetland edges Monitor Koll center wetland tor siltation (30.000 sq It) Len improves wafer quality by shading,reducing Create 200.000 sq ft of wetlands along stream edge by 49 1056 V THPRD erosion grading banks back and reconnecting*Oates wetlands by Monitor outfall at Nimbus for spills(source removing berms control) Retrofit outfall,with bioswaies where possible Implement SP-If silt a problem F-1e Fenno•Alien Rd Area Pretreatment Install compost hher drop In unit or caner treatment near SP-8 Iloodplain fringe just tothe east of Western Ave(draining 77 27 205 N Bvtn Reduces stormed«pollutants entering stream acres of commercial area Or Allen) F-19 Fantle-Portiand Gott Club Plant native vegetation in riparian corridor(250,000 sq h) USA Partner with golf club Restore natural stream cross section and conditions(private 58 1632 N POC Evaluate fertilizer/chemical use as a possible cost) olg's discharge to the creek Recontiqure pond,move off-line;see W-1(privele cost) - F22 Fanno•Chime*Restaurant Enhance pond by creating an emergent or foresten wetland USA Benefits positive neves for temperature,DO, (►eprade 40.000 sq h) 53 388 N Owners algae,ban«1a,total phosphorous.and other Reclaim south parlong area for oft-line wetland(22,500 sq 11) Stabilize and reveQetate stream banks and bed along 400 lit olgti nutrient removal W-1 Woods•Hideaway Park Enhancement Increase fioodpWn storage by excavating soccer held 1 ft USA Benefits positive levels for temperature,DO. Enhance floodplain vegetation by planting at Hideaway Park 57 190 Y THPRD algae,bacteria,total phosphorous,and other (40,000 sq ft) POC nutrient removal Move on-line pond at Portland Gott Course oft-line(see F-19) pills Flood peak reduction downstream A-2 Ash-Hwy.217 to Hall Blvd. Improves water quality by ahiadirg,reducing Increase floodplain storage/wetland function by Tigard erosion removing/redistributing 811 over 550,000 sq 11 near creek 62 1989 N Owners Decreases?boding Impacts Plant native vegetation in riparian corridor olgls Check Tigard and DSL requirements Needs to be timed with development of she -- Total Cost 6576 _Approximately 6.8 million •Lead responsibility in bold. USA:Unified Sewerage Agency; THPRD-Tualatin Hills Park and Recreation District;PGC= Portland Golf Club; FCNA•Fenno Creek Neighborhood Association; Olga:other local governments Fanno Creek Watershed Management Plan Section V 71 Table 17C Low-Priority Water Quality and Flood Management Projects S If s f at i t il II I Comments 0 n Stream Reach 1 Fenno-Durham Rd.to Senile•F-2 Details Pretreat 38 outlal east of Durham Rd with a compost tiler or other treatment(drains 111 acres industrial area) 27 295 N Tigard Reduces stomata*,pollutants erserirg Finite-Main St to Grant St.•F-8 stream Instal a compost Otter or other treatment to treat runoff at outfall east of 99W(drains pt acres) 27 240 N Tigard Reduces storm/Norpollutants•ntennp 10 Fenno-Nona•Farm to Tkd•man stream Plant native vapetation in riparian corridor(20000 sq t) Altar horse farm mass enance Stabilize stream banks In areas of severe localized erosion 47 99 N Tigard (N•non•etruclural programs practices M)at 1M farm ogti Improves water quality by shading, ti Fenno-Vista Brook Park Area reducing erosion Plant nate•vegetation in npanan corridor Is total 67 45 N THPRD No roomy,,,,, MPORlarmd Golf Club end Stabilize strum bed along 450 ret of stream(1300 reach) BoNnann Pond w raeoNep FFarm-Far -Olsson Rd.Area cloy Stabilize stream banks and bed In areas of localized erosion USA (approximately 1000 III) 38 244 N parte Difficult access 0‘9150. Nwy217�A 1 Ash-Confluence to 1 _ Install compost filter or other treatment with high Sow at U. Ston or near highway to pretreat etormwaer draining 145 28 307 N Tigard Reduces atormwstr Pollutants entering - acres dip's stream A-3 Ash-Nett Blvd.to Metzger Plant native vegetation in nparfan corridor Stabilize stream banks on lots with tailing walls(commercial 49 140 N USA Difficult access and residential)approximately300 it dig's Apartment compiax flooding A4 Ash Middle Fork-Park Plass to Cedercr a!Rd. Remove concrete spilhvay at the pond Restore natural stream cross-section and wisterias for 10,000 sq feet USA Improves water quality by shading Pterin native v 49 107 N Have DSL Investigate fill of forested perian corridor 0igy vegetation In n Remove nutria wetland upstream of Park Place 5-4 Summer-Summer Lake Perk Create additional islands In pond to Increase shade Plant nates vegetation along pond(create Irregular edge) Neighbor cooperation needed 230,000 sq t. Aller maintenanceaand landscape practices Remove/controlnon melee plants and animas(waterfowl8 54 354 y Tigard (ase non-structural program) ti Benefitsnutria) i> BenefitsOcellus levels for temperature, Add habitat structure(snaps.basking logs.woody debris) DO,baaiena algae.bacteria,total S4 i Summer Middle Fork•The Lakes DDhoroue,and slier nutrient removal Plant native vegetation along lake edges(40.000 sq t) Reprede to create wetland bench In pond(40,000 sq It) Sean Remove/control non-native plant and animal populations t 48 N C�vners improvesreducing water t los i by from ani and (waterlowl a nutria) opY nutrient loadlrg amimia feces V-1 Vermont•Confluence to County Una Plant native vegetation in corridor(sacra:37,000 aid R) Stabilize strum bed toreducedowrlcuting(aoDrox 450 ill 4p 137 N USA Improves water quaky by shading, 1 dist Cost . olio's r•duclrq erosion 2114 Approximately 22 million •Lead responsibility in bold. USA a Unified Sewerage Agency; THPRD a Tualatin Hills Park and Recreation District; Olga a other local governments r, Fanno Creek Watershed Management Plan Section V 72 w Project Fanno Creek Drive Bank Stabilization (F-4) Location Fanno Creek - off SW Char Drive near Fanno Creek Drive Problem Significant bank erosion along 150 feet of bank,20-30 feet high Est. Cost $100,000 Partners Tigard,other local governments as appropriate Conceptual Design Solution Stabilize approximately 150 linear feet of streambank, using a combination of bioengineering techniques. Stabilize the toe of the slope with rock, embedded beneath the stream bed. Use high-strength coir fabric for added stability on open soil areas across the bank. Create a stable riffle in the channel bed along part of the reach, per geomorphologist's recommendations. Remove non-native species (blackberry and others) on the project site and across the stream on the floodplain. Grade streambank on opposite side to encourage flow on to the floodplain. Re-establish native trees, shrubs, and grasses as specified. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area(Sq Mi) 2-yr 10-yr 25-yr 100-yr &FL5NE 27.62 1486 2226 2296 3098 &FL5S 28.00 1504 2255 2629 3144 Plant Community Riparian forest along bank Forested wetland and shrub/scrub wetland on floodplain See Technical Appendix A for more specific flow information, an Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues In-stream work will need to be completed between June 1 and September 30. A joint fill/removal permit from the Division of State Lands and a Tigard land use permit may be required. The project will probably be permitted under the enhancement provisions of the fill/removal permit. Appropriate erosion control should be provided. Maintenance Site maintenance will be required until the native vegetation becomes established(3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 73 w Fanno Creek Drive Bank Stabilization (F-4) I Fanno Cr = W myFonno Cr =� F-4 a r : . = il _ X x :ONITA / / /7 1 STABILIZE _____________:/ T / ERODING / I \ BANK / / \ \ z� .40 \ / ( J I � �� / /// i 7 - / I / LOWER FLOODPLAIN i j ELEVATION )/I 1 ENHANCE , \ \\ � FLOODPLAIN \ \,K \, l \ I PATNW \ I I AY \ I I I I i r; / I o Fanno Creek Watershed Management Plan Section V 74 o Project Woodard Park Enhancement (F-9) Location Fanno Creek- Woodard Park in Tigard Problem Exposed sewer line in two places. Lack of native vegetation along the stream banks. Est. Cost • $180,000($60,000 from a surface water management fund, $120,000 from sanitary sewer fund) Partners Tigard(SWM),USA (Sanitary),Tigard Industrial Park Conceptual Design Solution Cover sewer lines by encasing exposed locations in concrete and rock to create a riffle on both Fanno and Derry Dell Creek (see cross-section). Grade back disturbed streambanks and adjust the floodplain to accommodate the backwater from the created riffles. Remove non-native vegetation along both banks. Plant native vegetation throughout the park, focusing primarily along the stream edge. Grade a long shallow bioswale along the edge of the Tigard Industrial Park parking lot, parallel to the creek. Vegetate with native grasses. Avoid impacting wet meadow on floodplain during construction. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area(Sq Mi) 2-yr 10-yr 25-yr 100-yr &FLDD 24.32 1549 2329 2726 3276 &FL9N 24.58 1396 2115 2470 2955 • Plant Community Riparian forest along banks Forested wetland in park Wet meadow downstream of park on floodplain See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues In-stream work will need to be completed between June 1 and September 30. A joint fill/removal permit and Tigard land use permit will be required. It will be necessary to work closely with Oregon Department of Fish and Wildlife regarding fish passage. Appropriate erosion control should be provided. Five homes in this area were flooded in February and November 1996. The project, along with the replacement of the Grant Street bridge should alleviate some of the flooding. Maintenance Site maintenance will be required until the native vegetation becomes established(3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 75 We Woodard Park Enhancement(F-9) wr TOP OF BANK 4WATER LEVEL , . �, :-. �—� ENCASE PIPE IN 4`° �a".<11.277-' lr CONCRETE / ROCK '```--" 1111z-\ CREEK BED v $ ----t—i. PIPE F-9 T ' SECTION A-A' • ; ,_ Fonno . Cr = --E-7,- t,` `'T-C.:.:.- v✓ 3 .1 TOP OF BANK TOP OF BANK 4,44 .:-.i. �`.WATER LEVEL �P ENCASE PIPE IN c., pt cCONCRETE / ROCK Derry • St 'VZ/Z/11/�'r1/!1/1/1!1/' PIPE -Cr SECTION B-B' Selected areas of the floodplain must be lowered to compensate for raising the stream bed to cover the exposed sewer pipe (to be determined in the field). is0, u u I \ COVER EXPOSEDU SEWER LINES cilj 0 Q ricgRo ADD lND �'B' �� RIPARIAN '# 0 O p"4 Ric STRi VEGETATION qC / j'A' ENHANCE at.-/ j i Or � FORESTED //�� ADD BIO-SWALE WETLAND II / •/ N / PROTECT —� �� 0 /I�, 0 ECT I \ .i Ck WET MEADOW -"" ..> 74 . ), Q3 ,C . ) ' (-3 Q:3 ......._ --,,,, -) _.) \ / COVER EXPOSED U \ SEWER LINE X.\€) 01.4i OSp (\\" 30 7;?4,,„ 42' C:1W 6 ErJ C3 0 ". 07V n o d Q I (9 (72 .( ' d Fanno Creek Watershed Management Plan Section V 76 R, Project Englewood Park Enhancement (F-12) Location Fanno Creek-Englewood Park just south of Scholls Ferry Road in Tigard Problem Open floodplain,unshaded straightened creek,deeply incised stream channel Est. Cost $2,349,000 Partners Tigard, other local governments as appropriate Conceptual Design Solution This is a regional water quality facility site (approximately 715,000 square feet in size) downstream of major commercial and residential development. Re-establish the frequency of stream/floodplain interaction by sloping and stabilizing approximately 3,800 linear feet of streambanks with bioengineering, as shown in cross- section. Add channel meanders in areas that have been straightened and add vegetation to shade the creek throughout the site. Remove non-native vegetation in work areas before planting native forest wetlands and shrub/scrub wetlands on the site. Enhance the existing pond across from Nimbus development by minor regrading and planting with native plants. This project should be phased and constricted over 5-7 years. See conceptual map on back. The project construction costs could be funded from DSL's "in-lieu-of-mitigation" fund collected from property owners who were allowed to fill wetlands without having to build mitigation wetlands. 2040 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &FM3E 11.93 793 1185 1380 1639 &FMHN 12.70 791 1184 1375 1630 &FMAS 17.20 1037 1552 1808 2149 Plant Community Riparian forest, forested wetland, shrub/scrub wetland,emergent marsh wetland, and upland forest at various locations throughout the site, depending on topography See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues In-stream work will need to be completed between June 1 and September 30 of each year. A joint fill/removal permit and a Tigard land use permit will be required. A design charette should be coordinated with the Division of State Lands, Oregon Department of Fish and Wildlife, Corps of Engineers, City of Tigard, City of Beaverton, adjacent office park, and other land owners to develop this project. If this site is developed as a wetland mitigation bank,funding from other agencies(DSL)may be provided for some of the construction and long-term maintenance and monitoring. Appropriate erosion control should be provided. Maintenance Site maintenance and monitoring will be required until the native vegetation becomes established(at least 15 years from start to project completion). Periodic summer watering,plant protection,and monitoring of site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 77 Englewood Park Enhancement (F-12) , ; • Fonno :� Cr. i Washington Rholly' d y- To Square U ROPE „Mit . Nimbus �_t:NWY 217 c� X77 �S FERR �G s ; R SC'N0I\' Cas _ • tod.v�. Ave � .a.w - •F...12 4� _ N�/y8.(-IS Niton • ENHANCE ' -- ,'" US _ cr.°° v_y ..:-..„EMERGENT �� 9� :`- .. 2 \ .:4/v4/\,c) �N�� MARSH \ : ' AO) Cr. �. a c j GrewDurg 1 • fw 8 ...-. oRd N sr North.�okoto �t j " \ A I f Ar ADD CHANNEL ) '••• I\ RESTORE HISTORIC MEANDER \ ......./7/777 CHANNEL MEANDER 1I ) I I ADD I RIPARIAN I I VEGETATION I I / THROUGHOUT SITE I TO SHADE CREEK i \ \ J EK N RE \ \ 70 0 n PATHWAY t./) vo . ENHANCE ASN .. WETLAND CRUS �K `, GR 1 - • 'I NORTH DAKOTA Fanno Creek Watershed Management Plan Section V 78 1 Project Fanno Creek Floodplain Enhancement (F-14) Location Fanno Creek-Between Fanno Creek Park and Highway 217 Old Fanno Creek wastewater treatment plant site Problem Floodplain disconnected by a large berm south of Denny Road. Creek unshaded. • Est. Cost $452,000 { Partners Beaverton, USA(owner), THPRD Conceptual Design Solution Complete a site assessment to ensure no soils/hazardous materials problems exist. Solve any problems prior to project construction. If safe,remove the large berm south of Denny Road along the west side of the creek in order to open the floodplain. Lower the floodplain elevation by 1-2 feet in order to increase floodplain function. Revegetate with native vegetation. Plant native vegetation along the riparian corridor in areas with lack of shade, up to Highway 217. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &FM5W 9.99 793 1182 1375 1632 &FM6 9.61 795 1177 1366 1621 Plant Community Riparian forest along creek Shrub/scrub wetland on floodplain See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues The work should be completed when the site is relatively dry. A joint fill/removal permit may be required. The waste water treatment plant area needs a site assessment to ensure no hazardous material issues exist. Appropriate erosion control should be provided. Maintenance Site maintenance will be required until the native vegetation becomes established(3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. I 1 Fanno Creek Watershed Management Plan Section V 79 fir • Of we �� Fenno Creek Floodplain Enhancement (F-14) i � F2t7" I 7._ 111 _ 1 1 s " S \ ON zi .1 i" . , i ..-', I 1 ;i ..,-:'.:1: Z" ) i g Dann Rd 4.- t3+ �.` OPEN:``,..•.5 ) 1 I 1 �- 73 s ■ y ■ I e.+o�� --. .- - Y�'.. L WATER //' • ) d / ■ ,-0 At ..-::::-.11 ,ii - } c ( a o • i —_ II 7" . Fonno I y'A II 3 GAS ) I dF HWY 217 FACILITY ■ s +1_ Noll " /// ADO ■ ■ _Blvd `g - ■ /icy?, RIPARIAN ■ VEGETATION i ■ STORAGE (` I FACILITY J I ., _________i / SUB- STATION STATION I ■ , \ ■ ■ . ■ I 11 DENNY ROAD ■ II1 / / I f[Nt1/4••,, ,,. /0,4\ II f ENHANCE AS ( FORESTED WETLAND AND //` 111 lII I I; SHRUB/SCRUB WETLAND Iii f , I LOWER FLOODPLAIN 1`-2' ,�1 /,f' \\ ; f \ ■ ii MERCER INDUSTRIES 1 REMOVE BERG — „f --/}) , / I t i �� ✓ /� ENHANCE jf✓ RIPARIAN ■ � l / FORES T ■ f . / ■ fI OWIf I I. ..� / / • • 4. Fanno Creek Watershed Management Plan Section V 80 I Project Rambler/Bohmann Pond and Stream Enhancement (F-17) Location Fanno Creek- Between Rambler and Bohmann Parkway Problem Creek straightened and unshaded. Excessive sedimentation in pond created by in-stream dam and upstream sediment sources. Flooding of homes along creek. Est. Cost $509,000 Partners USA,Neighborhood Association Conceptual Design Solution Re-establish creek channel and make the pond off-line (model project). Excavate excess sediment buildup in stream. Restore low-flow channel to historic meanders still present. Remove the south weir, re-configure the north weir(which has a fish ladder), and extend the island in order to make the pond off-line. Enhance the site with native riparian and emergent wetland vegetation. Residents who are floodprone have been advised to flood-proof their homes. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &FMA 8.62 875 1290 1497 1773 &FMBS 8.62 897 1338 1551 1835 &FMB 8.37 889 1326 1537 1818 FMBS .099 20 30 34 40 Plant Community Riparian forest along creek Emergent marsh and open water in off-line pond See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues This project focuses on water quality enhancement and will not fully address flooding problems in the area. However,the project may help reduce the frequency and severity of flooding. The work should be completed between June 1 and September 30. A joint fill/removal permit will be required. The project must be coordinated with Division of State Lands, Oregon Department of Fish and Wildlife, and neighborhood association. USA must receive an easement over the pond and a permanent access point for maintenance purposes. The Fanno Creek Neighborhood Association must contribute partial funding to the project. Maintenance Site Maintenance will be required until the native vegetation becomes established (3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 81 Rambler/Bohmann Pond and Stream Enhancement (F-17) ON . - _ ... Allen • RSehdb' Ferry _....--•"" Sdtdle dFerry • &<V. ,_ `�.. R '-- Q �� x 4 /kirt 4r vE r I cn =cr N 1 R +'. S_ _ _ .P ,< - c -- c 7 i - :,. j --- — --... , i21) \ ------ ilak • KEEP EXISTING WEIR EXTEND EXISTING TO MAINTAIN OFF-LINE POND �' ISLAND •4. \\ C3 EXCAVATE EXCESS REMOVE ` \ ••,,, SEDIMENT FROM THIS WEIR \ �•..51„ SELECTED LOCATIONS \ _ \ / 06, \ 411 \ .K . ,yV ENHANCE \ \\ PqR k� POND/MARSH KNN> 'q� Y El o �I � �ESXLISANTD_1‘.Z:7 k,oi— /0 ® ..... ' Cr] E j E:I-- ,- O\ ----/4.--RESTORE ORE LI LOW FLOW CHANNEL RAMBLER LANE r---------_--, Fanno Creek Watershed Management Plan Section V 82 Project Oregon Episcopal School (OES)/ Radio Tower Site (F-20) Location Fanno Creek -between Nicol and Oleson Roads Problem Creek channel deeply incised. Floodplain disconnected,reducing flood storage capacity Est. Cost ' $1,609,000 Partners Portland's Bureau of Environmental Services(BES),USA Conceptual Design Solution Increase the floodplain function by lowering the elevation of the streambank and some marsh areas to allow overland flow at both the marsh and the radio tower site during a 1.5-year storm and greater. Add in-stream structure, including large woody debris and rock riffles, to raise the streambed along 2,200 linear feet of the reach, per specification of a geomorphologist and water resource engineer. Repair eroding streambanks as needed. Plant native vegetation throughout disturbed portions of the site. Evaluate the function of the beaver dam at the OES marsh and re-configure outlet to prevent marsh overflow across Nicol Road. See conceptual map on back. 2(40 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &FMD 6.68 808 1208 1400 1653 &FME 5.19 715 1056 1219 1433 &FMVT 6.42 877 1301 1505 1775 VTI 1.24 197 289 332 390 Plant Community Riparian forest along creek Shrub/scrub wetland and forested wetland on floodplain See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues The work should be completed between June I and September 30. A joint fill/removal permit will be required. The project should be coordinated with BES, Division of State Lands, Oregon Department of Fish and Wildlife,and Oregon Episcopal School. Appropriate erosion control should be provided. Maintenance Site maintenance will be required until the native vegetation becomes established(3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. 1. Fanno Creek Watershed Management Plan Section V 83 w 0 Oregon Episcopal School (OES)/ Radio Tower Site (F-20) Ott mit OM i. v3.. •R`• ` '7 �y '<•� _...r.,: -did `' ..,,E `- ,4.'j .,xcuS.• f 4J °"p,. tV _—--•gra �o' ... Y � r�^ � Ir s,-,---:..-.• i -:' .- F20 --."4 EF NicolRd• • .(..c.• VKmonf r saa G no t. O.E.S. • • C __ Woods Cr 1PR • * LOWER & STABILIZE STREAMBANK * ENCOURAGE FLOODING OF FLOODPLAIN e>,,,,,_:.___)::3 Q4. . LJ L1 �, * ADD IN-STREAM HABITAT CO- _ a ■ it o �� QQ , _ �Q `Ii ❑ Q , �� P , , � OES MARSH ` �, , G� I C3 / �� // (OPEN WATER) m \ _ _� _ _ - _ _O _ ,J VERM�j RECONFIGURE ENHANCE/ �• A �'S'�=—= OUT Nicol_RDEDUCE /MARSH j�� rriiii��r r 1 / C 7n. FLO DIN j // / �/ ��,��////. , KEEP SHRUB PROJECT i II 7 ✓ -I:. / SCRUB / I BOUNDARY WETLAND a 0 . - - _ _ gyp cn . * LOWER STREAMBANK VERMONT ST. ',. ,' * ENCOURAGE FLOW THROUGH MARSH AREA * ADD IN-STREAM HABITAT ELEMENTARY SCHOOL OES SCHOOL Fanno Creek Watershed Management Plan Section V 84 Project Raleighwood Park/ Bancroft Pond (SV-1) Location Sylvan Creek- Raleighwood Park Problem Homes on the floodplain subject to flooding. Accumulation of sediment in the marsh and Bancroft Pond. Erosion of temporary weir structure. • Est. Cost $350,000 Partners USA,Property owners, Oregon Department of Transportation(ODOT),Thalatin Hills Park and Recreation District(THPRD) Conceptual Design Solution Purchase floodprone property at fair market value, if available and remove structure to increase the size of sediment trapping pond that reduces sediment accumulation in the marsh. Determine the geomorphically stable condition for the channel, move the pond off-line with a new control structure, and remove the existing in-stream concrete weir that makes the pond. Dredge the off-line Bancroft Pond as needed, to capture sediment before it enters the marsh. OR Dredge a stream channel through the marsh to encourage conveyance and move water away from homes. In both cases, allow ecological succession to occur in the marsh following any construction activity (allow beaver to influence the site conditions). See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &SV1 1.20 196 288 331 389 &SV2 .95 152 225 259 305 Plant Community Riparian forest along creek Shrub/scrub wetland, emergent marsh wetland, and forested wetland on floodplain See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues The work should be completed between June 1 and September 30 to accommodate the in-stream work period set by Oregon Department of Fish and Wildlife. Appropriate erosion control should be provided. One house in the area floods, several others have had significant amounts of water in their crawl spaces and basements. Maintenance The changes in the marsh system over time should be monitored to evaluate ecological response to lack of human intervention (non-maintenance). The off-line pond should be checked periodically for excess sediment accumulation. Fanno Creek Watershed Management Plan Section V 85 o Raleighwood Park/ Bancroft Pond (SV-1) 14, Mr 3A s .BLLD•D•a' -l -OMS i - .1�11A' , I --�'' G• v —i t 1,.. 1 -Sa,dl3 . n<„ earrt � - - Ferry z s-' 4M:i: 'Y Way rz, �oncroff- R0 s , ,s,,:n.4. i-f.: Lj s,+ Ia xrylaBERM OR Fonno Cr ISLAND LOW mi. FLOW Ov. Mils. Hry .- Q.-~ - CHANNEL :)- ,v<1/4,.. f7 / / \\ OPTION B: �� G/ HIGH DREDGE STREAM NNEL / p� FLOW THROUGH MARS & \ " OVERFLOW KEEP SMALLER OFF-LI E o 5 � POND CONCEPT . P� c �co2C ADD IPARIAN PSG F� ,`� VEGETATION 7 �� a�0�FFc.e��- � PO �� REMOVE EXIG IR —� 0P� /4zzi- ,,,.AD SMALL WEIRS // i / / OPTION A: p N('Ll°44e1 /` ACQUIRE PROPERTY & 2 REMOVE STRUCTURE TO --.1 ii- INCREASE SIZE OF OFF-LINE POND t TO RALIEGHWOOD MARSH J �O \ , - ,o, Fanno Creek Watershed Management Plan Section V 86 Project Railroad to Highway 217 Stream Enhancement (RR-1) Location Red Rock Creek -from railroad near confluence up to Highway 217 Problem Lack of shade along a straightened channel in a commercial/industrial area Est. Cost' $220,000 Partners Tigard, other local governments as appropriate Conceptual Design Solution Re-establish riparian corridor through minor creek channel alterations (increase channel complexity by adding rock riffles and large woody debris). Remove invasive non-native species and re-establish a diversity of native vegetation throughout 10,000 sq ft of corridor from Hwy 217 to Huntziger. Enlarge existing wetland features to over 70,000 sq ft (at emergent marsh and wet meadow locations in vacant field off of Wall St) to increase water quality treatment. Revegetate the triangle pond to increase shade, and implement a nutria management program for the pond. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area(Sq Mi) 2-yr 10-yr 25-yr 100-yr &RR2 1.39 276 394 449 523 &RR3 1.21 241 344 392 457 Plant Community Riparian forest along creek Emergent marsh and wet meadow on floodplain at selected locations See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues The work should be completed between June 1 and September 30. Upstream conditions should be monitored to avoid impacts to the enhancement project downstream. Appropriate erosion control should be provided. Portions of this project area are an existing mitigation site. Maintenance Site maintenance will be required until the native vegetation becomes established(3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 87 il Railroad to Highway 217 Stream Enhancement(RR-1) .ff I 1 HWY •W , / / :Dartmouth t • ENHANCE �>> 7j .- 2nd POND / OFF—LIN TRIANGLE He = `. Dertmouf►+— % r= / . I PROTECT / ENHANCE ,� , ,, , . _ / WET MEADOW - .�j. ,? RR—1 . _� V` Mw/�1772nd . /III , "� ADD Nunziker Sc ' RIPARIAN Red Rock � sr _ 7 VEGETATION i, L it , L____ 4 il 1 / t� L 1 /i 'n1 / ' 1i 'l 1 --- 11 r / / ► / 11 I ADD RIPARIAN 42- I / VEGETATION /\ QT t/ \ \ \ t / p \\ l ► l gRk,,,,c A/ / / /v // / ENHANCE HRUB/SCRUB /\ / & / "..< / , / EMERGENT MARSH •/ ///� A J OPEN FIELD DD RIPARIAN /,.,- VEGETATION Fanno Creek Watershed Management Plan Section V 88 f Project Washington Square Pretreatment (SP-3) Location Ash Creek at location A-1 -between Toys R Us and LP Gas Problem No pretreatment of runoff from Washington Square Mall Est. Cost ' $93,000 Partners Tigard Conceptual Design Solution Install a stormwater pretreatment facility that will physically and biochemically remove hydrocarbons, metals, and nutrients from the runoff draining Washington Square. Construct a high-flow bypass to prevent scour of the system during major events. See conceptual map on back. 2040 Flows Design Flow Node Point Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr AS 1 N .226 51 71 81 94 Plant Community Upland forest plantings in parking area near facility to shade parking lot and swale See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues Easements over the facility location must be obtained. Maintenance Monitoring and maintenance of this facility is critical to documenting its effectiveness. Inflow and outflow water samples after the facility is installed, as well as physical material samples, will need to be taken. Periodic removal of the physical media will need to occur. I. l 1. I I- Fanno Creek Watershed Management Plan Section V 89 • ow uo Washington Square Pretreatment(SP-3) "" I iMI ' 11° D Sf . Cr. -.. Washington DRAINAGE FROM pchafs• I Squpre INSTALL LOW/MODERATE FLOW WASHINGTON SQUARE `, Rd ro ' u • PRETREATMENT FACILITY , . NEXT TO II. 34:I:,w�r,a,. -3 Hwr 217 EXISTING SWALE ` t.�» / ..--- ` 1t, / \ ; Cosood. -r / 1 Ave �`�. TOYS Mft.e„ 47. r-7� .1 Fdnno !' , R U S 1k. -: :• _ \ / Pr _ ' / • m $ ` Cr.ssburg w sr iRd .,a L:47-ri.h-POTI-P 0 1 ,i.. \---..-- " ----""*. \ \ i • 7V , SPLIT FLOW 00, ‘ pi 41 PIPES Aft all ...lit FK\NG 0 iM$`. �.�� ADD P % Sei— AO TREES noricn- m 1.4 rai i a ,-, .z. po 10 w 7 011. 044,10,11P''11111. •vv .. INIOt''` J ; / e I/ PASS HIGH P PRK\NG �O FLOWS •'\ t^ IN EXISTING ----- / \ DRAINAGE SWALE / / / Z� --•-- \ 1 \ ) . LP GAS / Z TREATMENT FACILITY tf% \ /\ ...---- / [HICHw (tIN \ oitt CROSS SECTION A—A' 0 Fanno Creek Watershed Management Plan Section V 90 as Project Ball Creek Enhancement (B-1) Location Bail Creek from its confluence to Interstate 5 Problem Lack of shade,potential spill locations Est. Cost • $34,000 Partners Tigard, ODOT, owner, other local governments as appropriate Conceptual Design Solution Work with neighboring industries to educate them about spill prevention and gain access to the creek for planting. Remove invasive non-native species and garbage. Revegetate the banks with native vegetation. In areas prone to spilling, develop strategies to protect the creek from spills. Work with Oregon Department of Transportation (ODOT) on the I-5 / Hwy 217 right-of-way to implement a planting project and modify maintenance practices. See conceptual map on back. 2040 Flows Design Flow Node Points Drainage Area (Sq Mi) 2-yr 10-yr 25-yr 100-yr &BL2E 2.17 394 569 651 761 &BL2 1.42 245 355 405 476 &BL1 2.38 437 629 720 841 Plant Community Riparian forest along creek See Technical Appendix A for more specific flow information, and "Model Sites and Enhancement Vision" earlier in this section for specific plant community suggestions. Issues Streamside owner cooperation is critical to the success of project implementation. ODOT is designing a clover-leaf transportation exchange for Interstate 5 and Highway 217. Appropriate erosion control should be provided. Maintenance Site maintenance will be required until the native vegetation becomes established (3-5 years). Periodic summer watering,plant protection, and monitoring of the site conditions will be a critical aspect of the project. Fanno Creek Watershed Management Plan Section V 91 Ball Creek Enhancement(B-1) 27 Opp R,gMp ADD RIPARIAN VEGETATION ; YH1VY 217. `�:, ( INDUSTRIAL I .•,. .. BUILDING I , t __ _ 1 L ADD FENCE-ter' i. "J ` PROTECTION -.-► j lam.w.a. - ISG 72nd - - ._ _...1 J Ave _ I x _— j! -: T5IGARD I,, n. J ....., . BONITA ROAD I 1 J L_. �1 // J � / , N / ; go / - REMOVE BLACKBERRY ADD RIPARIAN VEGETATION Fanno Creek Watershed Management Plan Section V 92 Structural Projects: Community-Based Enhancement Community-based enhancement projects are critical to the long-term success of re-establishing healthy streams and wetlands throughout the watershed. No single agency, group, or city will be able to achieve the goals of this plan. However, the cumulative benefits of many projects -park plantings, back-yard naturescaping, storm drain stenciling, and recycling of oil, paint and other chemicals - will go a long way toward improving water quality. Table 19 lists projects that can be completed by community groups, property owners, and individuals. Figure 17 identifies the project locations. The main problem with most of the sites is the invasion of non-native vegetative species and the lack of shade along creek banks. These projects do not require extensive construction and can easily be phased over several years. Table 19 identifies physical habitat types for each enhancement project. These correspond to the physical habitat types shown on Figure 14 and presented on the detail sheets provided earlier in this section. The detail sheets give information about the hydrology, geomorphology, and plant community of each habitat type, indicating what the enhancement project should look like in the long term. Table 18 also gives model site numbers, which correspond to the model sites identified in Table 16 and Figure 13. The model sites are specific locations in the field where elements of a healthy stream system, appropriate to the enhancement project, can be observed. Technical Assistance for Community Enhancement Projects Technical assistance for community-based enhancement projects is available through USA. Brochures and handbooks are also available to help groups develop a project that meets their objectives and budget. The following outline identifies the important tasks and questions that need to be considered when embarking on an enhancement project. Please contact USA and cities or county before beginning any project along a stream or wetland. 1. Identify who wants to do a project and why • What are the objectives or goals of the project? • How many people will be involved? • What are the participants' ages and abilities? • How long will the participants be willing to work on the project?A day? A few weekends? • Does the designated leader have experience coordinating this kind of project?If not,contact USA. 2. Identify a project location and visit the site to confirm its condition (See Tables 19,17B, 17C, and Figure 17 for projects and locations. Contact USA for more information) • Obtain permission from the landowner to visit the site. If the site is in a park, notify city or park district staff of your interest in an enhancement project • Is the site accessible for the participants? • What are the critical ecological needs of the project? Non-native species removal? Revegetation? • What are the human needs of the project?Public education?Localized creek access and viewing? • Are the storm drains in the area of the project stenciled with the message: "Dump no waste, drains to stream"? • Are any projects planned or occurring up or downstream that could affect the project? • Can the site be easily maintained and watered in the short term(in the case of planting)? • What are the land owners' issues or concerns? • Are there opportunities to get others in the area involved? Fanno Creek Watershed Management Plan Section V 97 3. Formulate a project task list and develop a conceptual plan • How large an area can the project cover,given the number of participants and their ages? • When will the project occur?What will the weather and planting conditions be? • What materials are required? Size, type, and amount of plants, plant tting, fencing), compost, mulch, rock, large woody debris? Public education materials, storm odrain n estencils, paint, building materials? • How much will the project cost,based on the plan developed? How will it be funded? • Are permits needed for any of the project tasks?Contact USA for assistance. • What tools will be needed to complete the project?Where will those tools come from? 4. Plan the details of the project • Who will prepare the site? How will unwanted materials be removed form the site? • Who will order the project materials? When and from where? How and where will they be delivered? • How will participants be informed of the project and by whom? Newspaper? Monthly meeting? Phone calls? • Who will coordinate the participants during the project? Who will bring the water and snacks? • How will the project tasks be completed by the participants, as planned by the leader? • Who will monitor and maintain the project? How? USA, the local city, or park district may be able to assist with finding grant funding,debris hauling,etc. 5. Install the project Use the following guidelines (assuming fair weather and moderate motivation levels): Planting rates(includes getting plants in place, composting, mulching, tagging, fencing, and staking) • Children under 12: 1-2 plant per hour up to 2 hours • Teens age 13-17: 2-3 plants per hour up to 3 hours • Adults: 3-4 plants per hour up to 4 hours Blackberry removal and root grubbing by hand • Children under 12: not recommended • Teens age 13-17: 3-4 square feet per hour up to 4 hours • Adults: 4-5 square feet per hour up to 3 hours Cost of hired labor to remove blackberry/plant(per day) • Service/youth crews - 8 people: approx. $300- $400/day • Landscape contractor-5 people: approx. $450- $500/day • Fanno Creek Watershed Management Plan Section V 98 • Some Rules of Thumb Regarding Enhancement • Know your site,in all its seasons • Ask permission early on if it is not your property • Inform appropriate parties of your intentions(regulators, surrounding homeowners,etc.) • Evaluate everything - water movement, soil conditions,plant species, sunlight, nutrients, access, etc. • Ask for help from a qualified professional when you are in over your head • Maximize opportunities and resolve constraints before you develop the plan • Submit permit applications to appropriate agencies several months before project installation • Recognize that those who live at your site may change it to suit their needs (beaver, deer, nutria, raccoons, birds,people). Plan for both protection and selective thinning by others. • Never disturb a site more than is absolutely necessary • Prepare the site from the top down;plant the site from the bottom up • Do not underestimate the power of nature to take your project downstream • A failed monitoring effort typically leads to a failed project • You will typically complete half of what you thought you could get done in a given time. Be patient. Fanno Creek Watershed Management Plan Section V 99 Table 19 Community-Based Enhancement Projects " ' ID • w. imuminsm--- �Shade creak and stabile*aea nke from the Ball Croak confluence south ..�,:. 1600 160 000 N y RF/SS �Fi1 o ferasled area. Identified as a moderate p I MINIMIM 4 .000 y I -+ pony structural proy, imimmumnimmommmmillIIMM PI Fr FRgRagiiiii •CO3 N V mod PM 16 PIRRiaiiiiiiii 0... r v 000 ©m�� .� • • nrral- ' 3000 100 000 :t, ... 4000 r'.,.;�tM© A . . ra © •••�e.• • a • a•aLLw•LLir_aai�•u 1000 N Shacks creek tl Pmprps Dower and Mflahp N RF WM • hath ttM meadow located IIIMIIMI � �• reach. Stabilize creek and shade creek atApartments.Park PlApartments. m 200 10 000 N Y FW 7 Neighborhood aivoNaertent needed. Elated p•low more).• structure re Lx.j..=mnmtamerimmDes Fe 400 1 .000 N V miner RF/FW/UF-. Taylor's Ferry to A•7 M Y� • w Pa oornhadow Pk 2800 r�p� N N Enhance vspalatw,dM•rsny(shrubs and understory).Prwtla progeny rk 3200 _0000 Y V RF/Fwpf. - •aR ned 100ron needed.Potential•,,model Ms al Moonshadow with Mrled t8g7 nhanosmsm .,,, A•8 East Fork•Confluence to Cou LimRF/FIV/hi • ho• on needs . 4800 96000 N V meter F -. roe- ton drowsily(shrubs and undarstory). Pnvat•property needed. Increase vegetals drverstly on upland s A•g Orlin - from Arno IN 10000 U y Evaluate D4wbl d I0u and rn dr ebris t rey, i•iF 10y adding additional boulders and debris to _-_---ttabrkz•tasked •ostein ........„....„ 5-1 FowMr Waste School to 721st 5200 520000 V 6 N IN RF/SS/ ANer school maintenance • paAps d• of dumping).o 11N/UF t1tM d (rpm U. team ad• d school.p.Enhanceptat. Enhance ee etatrve drvrsy on pedlar parks Week Park)and ponds. 5200 104 000 V&N y RF/SS cShade creek as • •••,,,•reach. Protect bw•r..nen of Ween. R•+etaarh/La",shade npsnan vendor wren pockets of open water and IIIIIIIMIIIIIIIshr5000 250 000 Y&N Y maser SS/RF/EM 11 13 20 b u t♦rmub«Mtaas. Establish conservation easement over sits Ipr rdeeYton. • 6000 600 000 N V mod RF/Fyy/S-Shad*creek 1000 ft upstream of SchollF Sdownstream. F. lid and 2000 ft S-6 Pebble rest Area 1600 80 000 V • N FW/UF 7 Re-establish vsgatatie d 5-7 North Fork-Old Sd+oes Far to •rKn dove•• ret l .t eta 'versify throughout reach ef1•r d•vNopn+•m■ 6800 680 000 YdN Y mod FIF 6 8 dove•• valley lopes bstwen Wee and Beard Rd from _ mr • �t, • 4000 120 000 N V mod EA1MF -Enhance•-minimvegetative dnsny from natural pond to the aouthwat.up to ,. ....___________S•10 rk at the t••of the drain . South Fork• _saver.• .to Neadwal•n 10000 1.. Shade week on both banks th 000 N V retrnor NF/I.F 10 14 north of the•ua u•to Ins h•aowati reach from psat,M pond met 1000 70 000 p== 0 . ®300 000 N V minor MIR"igiiii ,. .m to Pr.. s Downs sm. 8�===- .�. 4000 400000 y ,��.. 1111111 !!r` mom. .,• ... 1800MI. N N WM rye INI.M1111111 14800 444 000 111 I-- V mod RFM1f ammisac•act - St. EMI 30 000 11111=1©awn cc �� _ ,,- OF 11.11771. 1 6hada emelt and enhanp tln"a diversity throughouth north oda t 60 000 N y d Dartmouth. Could be shirred Asa v'M'ra■e��151i r•■ryn■r■rr.•. own lira* Prdt•bywetlandnsa .too. process. Minim NOW her abde■r skate.SUMP*•■r aerie,Mika'Mob MOW V. t ilmorrs■a arm saint ter■No'Yam me MIN�.SI(ire M reerr ra■.rsr.w■are ra■.1Fw de■.W area SUM a■rr■is wr■i. Fanno Creek Watershed Management Plan Section V 100 I I111.010011.1.111A CO r 1 IMINIMrq,Il" Ca D, irl ../ o / . .. ,E 1 7/ 1 e upper Fanno ♦_ � \bit SF • '`1 .. [t{I ,- i -N -' I ^- 15rir R , 1 s — ' woods: ms .; 0 • Middle Fanne , '`, ! A - , '',, A— A'f5 -1•lg _ ir . 41111PA411 ‘u ''. ••!H-- 1.--- 21A-1 3 A-9 Iteon -f— - J. . Red Rods SummerX-111.5-6'r ,/ , r F—? 1,, ` - Ball / l• j Kreuger /f l Derry Deli' Lower Fonno. ,- y liffille wta rail j e..,e..r MF— ► i L ) Si F-2f dr _� ! ,-� / I. - - - I., 1 . de ,-. Tualatin River , I Q � kft 1111,14 V i s Il Figure 17 Community-Based Enhancement Project Locations l Fanno Creek Watershed Management Plan Section V 101 L