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Report Todd Prager From: Todd Prager Sent: Tuesday, July 19, 2011 3:53 PM To: 'Dale Richards' Cc: Albert Shields Subject: RE: Dale, The plot plan for lot 22 looks good, except that Terry needs to verify that the tree protection fencing has been installed per his specifications. From his report, it did not sound like it was up yet. Thanks, Todd From: Dale Richards [ mailto :windwoodhomesnw(agmail.coml Sent: Tuesday, July 19, 2011 10:14 AM To: Todd Prager Subject: Is the plot plan for 22 ash creek ok. Dale 1 Jul 08. 11 10:21a Flanagan (Laptop) 503-697-197G p.2 Teragan & Associates, Inc. Terrence P. Flanagan Arboricultural Consultants RECEIVED July 8, 2011 'JUL 0 8 2011 Dale Richards Windwood Construction Company CITY OF TIGARD 12655 SW North Dakota St. BUILDING DIVISION Tigard, OR 97223 Tree Protection Plan Lot 22 Ash Creek Estates Tigard, Oregon Four tree were shown on lot 22 that were 12 inches in diameter or larger. No other trees larger than six inches are located on the lot. Of the four trees identified, two trees are viable trees that will have to be protected during the construction of the house on the lot. Tree # 5841 - A dead Western red cedar (Thuja plicata) snag that has been removed. Tree # 5726 - is a 13 inch diameter Douglas fir that was classified as a hazardous tree during the initial tree inventory. This tree should be removed. It is considered to be a hazardous tree due to low crown ratio, the off centered jog in the tree trunk near the top of the tree, the off balanced top that is causing a bend in the trunk of the tree. This tree should be removed prior to the installation of the tree protection fencing. Tree # 5741 — A 20 inch diameter Douglas fir considered being in good condition located in the southeast corner of the lot. It will have to have a tree protection fence located 10 feet from the center of the tree to north of the tree. Tree # 5844 —A 21 inch diameter Douglas fir considered being in good condition located in the southwest corner of the lot. The tree protection fence is to be located 11 feet north of the center of the tree. The tree protection fence shall run from the east property line to the west property line and then south along each property line back to the black chain link fence already installed. If an existing wood fence is present along the west property line, it can be utilized as the fence along the west property line. A two foot gap in the tree protection fence should be located in the fence that runs along the east property line just north of the black chain link fence to allow a construction person to enter the tree protection area to carefully dig by hand four holes where the footings for the deck poles will have to be placed to support a deck that is to be built off the back side of the house. 3145 Westview Circle • Lake Oswego, OR 97034 • (503) 697 -1975 • Fax (503) 697 - 19760E -mail: terry(&teragan.com ISA Board Certified Master Arborist, #IPN -0120 BMT Member, American Society of Consulting Arborists Jul 08.11 10:22a Flanagan (Laptop) 503-697- 1976 p.3 Tree Protection on Lot 22, Ash Creek Estates Dale Richards 7/8/2011 Page 2 of 5 There are four post foundations measuring 24 inches by 24 inches 12 inches high that have to be installed to support the rear deck. Any excavation for these post foundations are to be done by hand. Any soil spoils from the holes should be broadcast within the tree protection area to be no deeper than two inches in any one area. The only construction personal allowed to enter the tree protection area are the personal necessary to excavate and install the concrete footings for the deck posts and the deck posts. No other entry into the tree protection area is allowed by construction personal unless supervised by the project arborist. All debris is to be kept from entering the tree protection area. No removal of any plant vegetation is allowed unless under the supervision of the project arborist including the removal of invasive plants. No soil shall be cut or fill shall be allowed in the tree protection area. When the final landscape is to be done, the landscape plan shall be reviewed by the project arborist to insure that nothing is to be placed within the tree protection area that may damage the roots of the two protected trees. Tree protection fencing shall consist of straight (not bent in any manner). five foot tall metal fencing supported by seven foot tall metal fence posts driven into the ground two feet every ten feet. Two signs indicating that the fence is a tree protection area shall be placed on the fence. Please refer to the appendix one for additional aspects of the tree protection plan that shall be followed. Please call if you have any questions or concerns regarding this report. Sincerely, Terrence P. Flanagan ISA Board Certified Master Arborist, #PN -0120 BMTL PNW /ISA Board Certified Tree Risk Assessor, #PN -0152 Member, American Society of Consulting Arborists Appendix # 1 - Glossary Appendix #. 2 - Assumptions and Limiting Conditions 3145 Westview Circle • Lake Oswego, OR 97034 • (503) 697 -1975 • Fax (503) 697 -1976 E -mail: Terry@Teragan.com Teragan.corn ISA Board Certified Master Arborist, #PN -0120 BMT PNW /ISA Board Certified Tree Risk Assessor, #PN -0152 Member, American Society of Consulting Arborists Jul ,08”11 10:22a Flanagan (Laptop) 503 -997 -1976 p.4 Tree Protection on Lot 22. Ash Creek Estates 7/8/2011 Dale Richards Page 3 of 5 Appendix # 1 Tree Protection Steps It is critical that the following steps be taken to ensure that the trees that are to be retained are protected.. Before Construction Begins 1. Notify all contractors of the trees protection procedures. For successful tree protection on a construction site, all contractors must know and understand the goals of tree protection. It can only take one mistake with a misplaced trench or other action to destroy the future of a tree. a. Tree Protection meeting should be held with all contractors to fully explain goals of tree protection. b. All sub contractors should sign memoranda's of understanding regarding the goals of tree protection. Memoranda to include penalty for violating tree protection plan. Penalty to equal appraised value of tree(s) within the violated tree protection zone per the current Trunk Formula Method as outline by the Council of Tree & Landscape Appraisers current edition of the Guide for Plant Appraisal. Penalty is to be paid to owner of the property. 2. Fencing a. Establish fencing around each tree or grove of trees to be retained. b. The fencing is to be put in place before the ground is cleared in order to protect the trees and the soil around the trees from any disturbance at all. Clearing of ground within a tree protection area shall be under the supervision of the project arborist. c. Fencing is to be placed at the edge of the root protection zone. Root protection zones are to be established by the project arborist based on the needs of the site and the tree to be protected. d. Fencing is to consist of 5 -foot high steel fencing on 7 -foot metal posts driven 2 feet into the ground to prevent it from being moved by contractors, sagging or falling down. e. Fencing is to remain in the position that is established by the project arborist and not to be moved without written permission from the project arborist until the end of the project. 3. Signage a. All tree protection fencing should have signage as follows so that all contractors understand the purpose of the fencing: TREE PROTECTION ZONE DO NOT REMOVE OR ADJUST THE APPROVED LOCATION OF THIS TREE PROTECTION FENCING. Please contact the project arborist or owner if alterations to the approved location of the tree protection fencing are necessary. Project Arborist — Teragan & Associates, Inc 503- 803 -0017 b. Signage should be place as to be visible from all sides of a tree protection area and spaced at least every 75 feet or otherwise noted. 3145 Westview Circle • Lake Oswego, OR 97034 • (503) 697 -1975 • Fax (503) 697 -1976 E -mail: Terry@Teragan.com ISA Board Certified Master Arborist, #PN -0120 BMT PNW /ISA Board Certified Tree Risk Assessor, #PN -0152 Member, American Society of Consulting Arborists 08 1 1 10:22a Flanagan ( Laptop) 503—G97-197C P- 5 Tree Protection on Lot 22, Ash Creek Estates 7/8/2011 Dale Richards Page 4 of 5 During Construction 1. Protection Guidelines Within the Root Protection Zone a. No traffic shall be allowed within the root protection zone. No vehicle, heavy equipment, or even repeated foot traffic. b. No storage of materials including but not limiting to soil, construction material, or waste from the site. i. Waste includes but is not limited to concrete wash out, gasoline, diesel, paint, cleaner, thinners, etc. c. Construction trailers are not to be parked/placed within the root protection zone without written clearance from project arborist. d. No vehicles shall be allowed to park within the root protection areas. e. No activity shall be allowed that will cause soil compaction within the root protection zone. 2. The trees shall be protected from any cutting, skinning or breaking of branches, trunks or roots. 3. Any roots that are to be cut from existing trees that are to be retained, the project consulting arborist shall be notified to evaluate and oversee the proper cutting of roots with sharp cutting tools. Cut roots are to be immediately covered with soil or mulch to prevent them from drying out. 4. No grade change should be allowed within the root protection zone. 5. Any necessary deviation of the root protection zone shall be cleared by the project consulting arborist or project owner. 6. Provide water to trees during the summer months. Tree(s) that will have had root system(s) cut back will need supplemental water to overcome the loss of ability to absorb necessary moisture during the summer months. 7. Any necessary passage of utilities through the root protection zone shall be by means of tunneling under roots by hand digging or boring. After Construction 1. Carefully landscape in the area of the tree. Do not allow trenching within the root protection zone. Carefully plant new plants within the root protection zone. Avoid cutting the roots of the existing trees. 2. Do not plan for irrigation within the root protection zone of existing trees unless it is drip irrigation for a specific planting or cleared by the project arborist. 3. Provide for adequate drainage of the location around the retained trees. 4. Pruning of the trees should be completed as one of the last steps of the landscaping process before the final placement of trees, shrubs, ground covers, mulch or turf. 5. Provide for inspection and treatment of insect and disease populations that are capable of damaging the retained trees and plants. 6. Trees that are retained may need to be fertilized and inoculated with mycorrhizae treatments as called for by project arborist after final inspection. 3145 Westview Circle • Lake Oswego, OR 97034 • (503) 697 -1975 • Fax (503) 697 -1976 E -mail: Teny@Teragan.com ISA Board Certified Master Arborist, #PN -0120 BMT PNW /ISA Board Certified Tree Risk Assessor, #PN -0152 Member, American Society of Consulting Arborists Jul, 01* 11 10:22a Flanagan (Laptop) 503-C97-197G p -G Tree Protection on Lot 22, Ash Creek Estates 7/8/2011 Dale Richards Page 5 of5 Appendix #2 Assumptions and Limiting Conditions 1. Any legal description provided to the consultant was assumed to be correct. The survey provided by Windwood Construction was the basis of the information provided in this report. The species identification and tree diameters were checked in the field by Teragan and Associates, Inc. 2. It is assumed that this property is not in violation of any codes, statutes, ordinances, or other governmental regulations. 3. The consultant is not responsible for information gathered from others involved in various activities pertaining to this project. Care has been taken to obtain information from reliable sources. 4. Loss or alteration of any part of this delivered report invalidates the entire report. 5. Drawings and information contained in this report may not be to scale and are intended to be used as display points of reference only. 6. The consultants' role is only to make recommendations; inaction on the part of those receiving the report is not the responsibility of the consultant. 7. This report is to certify the trees that are on site, their condition, and outline the tree protection steps to protect the trees to be retained on site. This report is written to meet the requirements of the City of Tigard for tree protection on properties that are to be developed for residential or commercial use. 3145 Westview Circle • Lake Oswego, OR 97034 • (503) 697 -1975 • Fax (503) 697 -1976 E -mail: Terry(a)Teragan.com ISA Board Certified Master Arborist, #PN -0120 BMT PNW /1SA Board Certified Tree Risk Assessor, #PN -0152 Member, American Society of Consulting Arborists