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HomeMy WebLinkAbout3.25 Arborist ReportFORESTRY AND VEGETATION MANAGEMENT SPECIALISTS WFCI 3601943-1 723 FAX 3601943-4 1 28 1919 Yelm Hwy SE, Suite C Olympia, WA 98501 URBANIRURAL FORESTRY TREE APPRAISAL HAZARD TREE ANALYSIS RIGHT-OF-WAYS VEGETATION MANAGEMENT ENVIRONMENTAL STUDIES CONTRACT FORESTERS Member of International Society of Arboriculture and Society of American Foresters - Revised Tree Protection Plan- VALLEY MEDICAL CENTER 400 South 43rd Street Renton, WA Prepared for: UW Medicine: Valley Medical Center Prepared by: Washington Forestry Consultants, Inc. Original Plan Date: September 20, 2016 Revised Plan Date: October 18, 2016 The project proponent is planning to construct a new parking garage and medical office building on the Valley Medical Center campus. The campus is a collection of 14 parcels on 33.07 acres at 400 South 43rd Street in Renton, WA. The proponent has retained WFCI to: • Evaluate and inventory all trees on the site pursuant to the requirements of City of Renton Tree Protection Ordinance. • Make recommendations for retention of significant trees, along with required protection and cultural measures. Observations Methodology In accordance with Renton Municipal Code 4-4-130, WFCI has evaluated all significant trees on site. This includes cottonwood and red alder trees 8 inches diameter at breast height (DBH) and larger, and all other trees 6 inches DBH and larger, and assessed their potential to be incorporated into the new project. Trees were numbered on a map, but not marked in the field. The tree evaluation phase used methodology developed by Nelda Matheny and Dr. James Clark in their 1998 publication Trees and Development: A Technical Guide to Preservation of Trees during Land Development. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 2 Site Description The Valley Medical Center (VMC) campus is built on a west-facing slope. The site has been terraced and constructed to accommodate multiple buildings and parking areas. Panther Creek flows along the northerly portion of the VMC ownership. The VMC is bordered by Talbot Road on the east, South 43rd Street on the south, and State Route 167 borders the west side of the site. Soil Depth and Productivity According to the King County Soil Survey there is one soil type on the site. The Alderwood gravelly sandy loam is a moderately deep, moderately well drained soil type formed on glacial till plains. It formed in ablation till overlying basal till. A weakly cemented hardpan occurs at a depth of 30 inches. It is strongly compacted and crushes to very gravelly loamy sand. Permeability is moderately rapid above the hardpan and very slow in the pan. Available water capacity is low. The effective rooting depth for trees is 20 to 40 inches. A seasonal high water table fluctuates between depths of 18 to 36 inches from November to March. Runoff is slow and the hazard to erosion is slight. Windthrow potential is rated as ‘slight’. In areas where grading brings the hardpan nearer to the surface, the hardpan must be fractured under new trees to provide soil volume for root development and to improve drainage around the tree. Figure 1. Soils map – Natural Resource Conservation Service. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 3 Figure 1 above shows the soil types on site. The Alderwood gravelly sandy loams are labeled with ‘AgC’ and ‘AgD’. The ‘Sk’ and ‘Ur’ labels stand for Seattle muck and Urban Land, respectively. Neither of these are significant to this project. Existing Tree Conditions For the purposes of this report, an inventory of trees and their condition was done for each tax lot, and then a summary is provided. Please refer to the maps in Appendix I and II for lot locations. Lot 1 This 15.04 acre lot includes three forest cover types: 1) the landscaped/planted trees by the parking lots and buildings, 2) the wetland/stream buffer trees, and 3) the Puget Sound Energy Arboretum – a strip of ornamental trees along the eastern boundary. Type I. – These are the landscape trees among the parking lots and buildings. The predominant species are London plane (Platanus x acerifolia), Norway maple (Acer platanoides), red maple (Acer rubra), and cherry (Prunus spp.). A total of 17 species occur in this type. The diameters range from 6 to 28 inches DBH (diameter at breast height). The trees range from good to very poor condition, but none are considered hazardous. Table 1 below provides a summary of the tree inventory for Type I. Table 1. Summary of Trees in Type 1 within Lot 1. *Includes multiple other species with only 1 or 2 individuals. The understory, where it occurs, is grass and other planted landscaping shrubs. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Callery Pear 9-13 5 5 0 3.36% Cherry 6-23 13 7 6 8.72% Crabapple 5-7 6 1 5 4.03% Douglas-fir 12-22 6 6 0 4.03% London Plane 6-28 30 30 0 20.13% Norway Maple 6-14 23 23 0 15.44% Red Maple 7-21 39 29 10 26.17% Scotch Pine 6-9 6 6 0 4.03% White Ash 7-21 11 2 9 7.38% Other* 7-26 10 8 2 6.71% Total 5-28 149 117 32 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 4 Type II. – This type consists of the trees in the wetland and stream buffers in the northwest corner of Lot 1. This is a critical area that is not buildable, so this tree inventory is not included in the tree inventory calculations. There are approximately 40 trees per acre in this type. The species include black cottonwood (Populus trichocarpa), red alder (Alnus rubra), bigleaf maple (Acer macrophyllum), and willow (Salix spp.). Tree condition ranges from dead to fair, and DBH ranges from 6 to 32 inches. The understory shrub cover in Type II includes Himalayan blackberry (Rubus armeniacus), young willow shrubs, horsetail (Equisetum spp.), cow parsnip (Heracleum maximum), Devil’s club (Oplopanax horridus), and grasses. Type III. – This type consists of the trees within the Puget Sound Energy Arboretum. There are a total of 61 species of trees in this arboretum, but only 26 were over 6 inches DBH. The trees are generally in fair condition, with one poor condition tree and two good condition trees. The diameters ranged from 6 to 13 inches DBH. The understory in this type is grass. Lot 2 This 0.43 acre lot includes one forest cover type: the landscaped/planted trees by the parking lots and buildings. Type I. – This type consists of 4 cherry trees, one red maple tree, and two Japanese black pine (Pinus thunbergii) trees. The diameters range from 6 to 10 inches DBH. The trees range from fair to poor condition, but are all healthy enough to be retained. Table 2, below, displays the tree inventory summary for Lot 2. Table 2. Summary of Type I Trees in Lot 2. The understory, where it occurs, is grass and other planted landscaping shrubs. Lot 3 This is a 0.31 acre lot with 3 Norway maple trees, 2 of which are below 6 inches in DBH. They are all in fair condition, and all could be retained based on health. The understory shrub cover consists of planted landscaping shrubs. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Cherry 5-11 4 2 2 57.1% Black Pine 6 2 2 0 28.6% Red Maple 10 1 0 1 14.3% Total 5-11 7 4 3 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 5 Lot 4 This 8.88 acre lot includes one forest cover type: the planted trees in and around the parking lots and buildings. Type I. – This type contains 66 significant trees of 12 species. The major species include Scotch pine (Pinus sylvestris), Norway maple, red maple, dogwood (Cornus spp.), and cherry. The diameters range from 6 to 22 inches DBH. Tree health ranges from good to very poor condition, but none appear to be hazardous. A summary of the tree inventory is provided in Table 3 below. Table 3. Summary of Type I Trees in Lot 4. *Includes multiple other species with only 1 or 2 individuals. Eleven of the 66 trees are in poor or worse condition. The understory shrub cover in Lot 4 consists of planted landscaping shrubs and grass. Lot 5 This 0.86 acre lot includes one forest cover type which is the planted trees in and around the parking lots and buildings. Type I. – There are 13 significant trees. Species include cherry, mountain ash, bigleaf maple, and sweetgum (Liquidambar styraciflua). The diameters range from 6 to 17 inches DBH and the tree conditions are fair to good. All are healthy enough to be retained. No significant disease or insect problems were noted. A summary of the tree inventory is provided in Table 4 below. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Cherry 6-16 4 4 0 6.06% Dogwood 6-9 6 0 6 9.09% Norway Maple 6-20 15 15 0 22.73% Red Maple 8-16 11 10 1 16.67% Scotch Pine 6-22 20 19 1 30.30% Other* 6-18 10 7 3 15.15% Total 6-22 66 55 11 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 6 Table 4. Summary of the Type I trees in Lot 5. All 13 trees are in fair or better condition. The understory shrub cover in Lot 5 consists of planted landscaping shrubs and grass. Lot 6 This 3.27 acre lot includes two forest cover types: 1) the landscaped/planted trees by the parking lots and buildings and 2) the wetland/stream buffer trees. Type I. – This type includes 44 landscaping trees located in the parking lots and among the buildings. Norway maple and London Plane trees make up the majority of the trees in this type, with one red alder and one Japanese black pine. The diameters range from 6 to 20 inches DBH. All but 1 red alder tree is in fair or better condition. Table 5 below provides a summary of the tree inventory for Lot 6. Table 5. Summary of trees in Type I of Lot 6. The understory, where it occurs, is grass and other planted landscaping shrubs. Type II. – This type consists of 13 trees located in the wetland and stream buffers along the northern property boundaries of the Valley Medical Center campus. Species include black cottonwood, red alder, bigleaf maple, and Douglas-fir. Tree condition ranges from good to dead and DBH ranges from 11 to 20 inches. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Cherry 8-17 8 8 0 61.5% Sweetgum 6 3 3 0 23.1% Mountain Ash 7 1 1 0 7.7% Bigleaf Maple 10 1 1 0 7.7% Total 6-17 13 13 0 100% Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition London Plane 13-20 10 10 0 22.7% Norway Maple 8-14 32 32 0 72.7% Red Alder 6 1 0 1 2.3% Black Pine 12 1 1 0 2.3% Total 6-20 44 43 1 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 7 The trees in this type are in the critical area and are exempt from our calculations in this report. The understory shrub cover in Type II consists of Himalayan blackberry, young willow shrubs, horsetail, cow parsnip, Devil’s club, and multiple vines and grasses. Lot 7 This 0.59 acre lot includes trees in the Panther Creek stream buffer critical area, similar the trees Type II of Lots 1 and 6. There are a total of 7 trees on this lot. The trees range in diameter from 7 to 21 inches DBH. Species include bigleaf maple, Douglas-fir, and cherry, five of which are in poor condition, mainly due to the growth of English ivy (Hedera helix) on the stem of the tree. Lot 8 This 0.74 acre lot includes 1 tree in the parking lot/landscaping area and the remainder of the trees are in the Panther Creek stream buffer. Type I. – This type includes one 8-inch cherry tree. It is in poor condition. Table 6. Summary of Trees in Type I, Lot 8. Type II. – This type consists of the trees associated with the wetland and stream buffers along the northern property boundaries of the Valley Medical Center campus. There are 31 total trees in this type, with 19 trees in the critical (non-buildable) area and 12 trees in the buildable area. The 19 critical area trees in this type are in the protected area that will not be allowed for development, and as such these trees are exempt from our calculations in this report. Species include black cottonwood, red alder, bigleaf maple, western red cedar (Thuja plicata), and Douglas-fir. Tree conditions range from fair to dead, and DBH ranges from 9 to 26 inches. Table 7. Summary of Buildable Area Trees in Type II, Lot 8. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Cherry 8 1 0 1 100% Total 8 1 0 1 100% Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Ash 10-22 5 2 3 41.67% Bigleaf Maple 9-26 3 1 2 25% London Plane 16 1 0 1 8.33% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 8 Lot 9 This 0.17 acre lot includes two red oak (Quercus rubra) trees in the landscaping strip between parking areas. The trees are healthy, potentially long-term trees if protected. Table 8. Summary of Type I Trees in Lot 9. The understory includes grass, weeds, and landscaping shrubs. Lot 10 This 0.24 acre lot includes 7 red oak trees in the landscaping strip next to the building in Lot 12. Five of the trees are in fair condition, and two are in poor condition. Table 9. Summary of Type I Trees in Lot 10. The understory includes English ivy, grass, weeds, and landscaping shrubs. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Red Maple 14 1 0 1 8.33% Western Red Cedar 18 1 0 1 8.33% Scotch Pine 16 1 0 1 8.33% Total 9-26 12 3 9 100% Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Red Oak 13-14 2 2 0 100% Total 13-14 2 2 0 100% Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Red Oak 6-13 7 5 2 100% Total 6-13 7 5 2 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 9 Lot 11 This 0.34 acre lot includes two red oak trees, 3 cherry trees, a grand fir, and 2 white fir trees in the landscaping strip between parking areas. The tree diameters range from 6 to 15 inches DBH. Seven of the 8 trees are in fair or better condition. Table 10. Summary of Type I Trees in Lot 11. The understory includes grass and landscaping shrubs. Lot 12 This 0.99 acre lot includes 4 red maple trees, 3 cherry trees, and 2 London plane trees in the landscaping strips between parking areas. The tree diameters range from 6 to 17 inches DBH, and tree condition ratings range from fair to dead. All are rated at a low risk to fail. Table 11. Summary of Type I Trees in Lot 12. The understory includes grass and landscaping shrubs. Lots 13 and 14 No trees exist on these lots. Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Red Oak 13-15 2 2 0 25% Cherry 6-9 3 2 1 37.5% White Fir 11-12 2 2 0 25% Grand Fir 8 1 1 0 12.5% Total 6-15 8 7 1 100% Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Red Maple 6-13 4 2 2 44.4% Cherry 6-9 3 0 3 33.3% London Plane 16-17 2 2 0 22.2% Total 6-17 9 4 5 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 10 Summary of the Tree Inventory for All Lots Twelve of the 14 parcels on the Valley Medical Center campus have trees on them. Four lots contain trees within the wetland and stream buffers associated with Panther Creek. The forest cover on the entire VMC site can be described as having two different forest cover types plus the arboretum on Lot 1. The forest cover types are described as follows: 1) the landscaped areas near the parking lots and buildings, 2) the wetland and stream buffer trees along the northern boundary and in the northwest corner, and 3) the arboretum trees on Lot 1. Summary Type I. – This type consists of all of the planted landscaping areas in and around the parking lots and buildings. There are a total of 307 significant trees. The following table is a summary for all trees in the landscaped areas. Table 12. Summary of Trees in Type I. *Includes multiple other species with 1 to 3 individuals. Summary Type II. – This type includes the Panther Creek stream, wetlands, and buffers. Large portions of Lot 1, as well as portions of Lot 6, Lot 7, and Lot 8 are included in this type. With the exception of 12 trees on Lot 8 (see Table 7 above), this is a critical area with the trees being exempt from our calculations. The tree species include bigleaf maple, red alder, black cottonwood, and willow. Some conifers are present as well. Diameters range from 6 to 36 inches DBH, and tree conditions range from ‘good’ to dead. Summary Type III. – This type consists of the trees within the Puget Sound Energy Arboretum. There are a total of 61 species of trees in this arboretum, but only 26 were Species DBH Range (in) Total Trees # of Healthy Trees # of Poor Health Trees Species Composition Japanese Black Pine 6-13 5 4 1 1.6% Callery Pear 9-13 5 5 0 1.6% Cherry 6-23 36 23 13 11.7% Crabapple 5-7 4 0 4 1.3% Dogwood 6-9 6 0 6 2.0% Douglas-fir 12-22 6 6 0 2.0% London Plane 6-28 42 42 0 13.7% Norway Maple 6-20 73 73 0 23.8% Red Maple 6-26 55 41 14 17.9% Red Oak 6-15 12 10 2 3.9% Scotch Pine 6-22 26 21 1 8.5% Sweetgum 6-13 5 5 0 1.6% White Ash 7-21 11 2 9 3.6% Other* 6-26 21 16 5 6.8% Total 6-28 307 251 56 100% Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 11 over 6 inches DBH. The trees are generally in fair condition, with one poor condition tree and two good condition trees. The diameters ranged from 6 to 13 inches DBH. Off-Site Impacts It is unlikely that tree removal on this site will impact any off-site trees. Landmark Trees There are two (2) Landmark Trees (trees over 30 inches diameter) that occur within Type II, the wetland/stream buffer. These trees (#343 and #459) are both in ‘fair’ condition. Tree #343 is a 36-inch DBH Douglas-fir tree located within 20 feet of the proposed parking garage. No grading or construction activities should take place within 16 feet of this tree in order to adequately protect it. Tree #459 is adequately protected as a wetland tree. Discussion Potential for Tree Retention Seventy-seven (77) trees from Type I and 31 trees from Type II will be removed for the construction project. A total of 337 trees from all 3 types are available to be saved based on health. Therefore, 229 healthy significant trees on the Valley Medical Center campus will be retained (68%). A detailed list of significant trees (trees over 6 inches DBH) by species, DBH, condition, root protection zone (RPZ), save/remove potential, and retention availability is provided in Attachment #3. Tree Density Calculations Title 4-4-130 of the Renton Municipal Code requires that a minimum of 10% of all healthy significant trees in buildable areas be retained on the project in a 'commercial' zone. The following is a summary of the required and planned tree retention: Total Project Area 33.07 acres Critical Areas and Buffers (Approximate) 2.50 acres Buildable Area 30.48 acres Total Number of Significant Trees on Site based on Diameter 471 trees Trees Excluded from Retention Calculation: Trees in Critical Areas and Buffers 119 trees Trees that are Dead Diseased or Dangerous 69 trees Number of Healthy, Significant Trees in Buildable Area: 283 trees Required Tree Retention: 10% of healthy significant trees in buildable area: 28 trees Number of Trees to be Removed for Construction 62 trees* *(44 Healthy Significant Trees; 18 Unhealthy Trees) Planned Tree Retention (283-44) 239 trees Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 12 There are 283 significant healthy trees to be saved in the buildable area of the site. At least 28 of these trees need to be retained to meet the 10% requirement of the City of Renton Code. The proposed plan retains 239 trees, exceeding the requirements. The landscape plan (prepared by others) should incorporate native conifer trees along with deciduous accent and shade trees to provide a mix of color, texture, and size. Recommendations Tree Protection Measures Trees to be saved must be protected during construction by temporary chain-link fencing on driven posts (Appendix V), located at the edge of the critical root zone (CRZ). The individual CRZ are a radius 5 ft. outside the dripline of the tree, unless otherwise delineated by WFCI. There should be no equipment activity (including rototilling) within the critical root zone. No irrigation lines, trenches, or other utilities should be installed within the CRZ. Cuts or fills should impact no more than 20% of a tree’s root system. If topsoil is added to the root zone of a protected tree, the depth should not exceed 2 inches of a sandy loam or loamy fine sand topsoil and should not cover more than 20% of the root system. If roots are encountered outside the CRZ during construction, they should be cut cleanly with a saw and covered immediately with moist soil. Noxious vegetation within the critical root zone should be removed by hand. If a proposed save tree must be impacted by grading or fills, then the tree should be re-evaluated by WFCI to determine if the tree can be saved with mitigating measures, or if the tree should be removed. Pruning and Thinning All trees to be saved should have their crowns raised to provide a minimum of 8 feet of ground clearance over sidewalks and landscape areas, 15 feet over parking lots or streets, and at least 10 feet of building clearance. This pruning should be done according to the ANSI A300 standards for pruning, and be completed by an International Society of Arboriculture Certified Arborist®, or be supervised by a Certified Arborist®. Hazard Trees WFCI identified five dead or ‘very poor’ health trees within Type I, however they are rated as a ‘Low’ risk to fail and impact targets, thus were not marked as hazard trees. It is recommended that these trees be removed during landscape maintenance. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 13 Conclusions Timeline for Activity 1. A minimum of 28 significant trees need to be retained on site. This plan retains 239 healthy significant trees on site. 2. The final, approved tree protection plan map should be included in the construction drawings for bid and construction of the project and should be labeled as such. 3. Contact WFCI to attend pre-job conference and discuss tree protection issues with contractors. WFCI can verify all trees to be saved and/or removed are adequately marked for retention. 4. Complete necessary hazard tree removals and invasive plant removals from the tree protection areas. No equipment should enter the tree protection areas during logging. 5. Install tree protection fences along the 'limits of construction'. The fences should be located at the limits of construction or 5 feet outside of the dripline of the save tree or as otherwise specified by WFCI. Maintain fences throughout construction. 6. Complete clearing of the project. 7. Do not excavate stumps within 10’ of trees to be saved. These should be individually evaluated by WFCI to determine the method of removal. 8. Complete all necessary pruning on save trees or stand edges to provide at least 8’ of ground clearance near sidewalks and trails, and 15’ above all driveways or access roads. 9. Complete grading and construction of the project. Summary The City of Renton Municipal Code requires at least 28 (10%) of the 283 significant trees be retained on the buildable area of the site. This plan retains 239 trees, 84% of the significant healthy trees on site. Please give us a call if you have further questions. Respectfully submitted, Washington Forestry Consultants, Inc. Galen M. Wright, ACF, ASCA Ben MacColl, ISA, SAF ISA Bd. Certified Master Arborist PN-129BU ISA Certified Arborist® - Certified Forester No. 44 No. PN-7972A ISA Tree Risk Assessor Qualified Professional Forester Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 14 APPENDIX I Aerial Photos (King County Parcel Viewer 2.0 - 2013) Project Boundary Forest Type Boundary Approximate Construction Area LOT 1 Type I Type I Type II Type III LOT 1 Type I LOT 1 LOT4 LOT 6 LOT 5 LOT 7 LOT 8 LOT 9 LOT 2 LOT 3 LOT 10 LOT 11 LOT 12 (LOT 13) (LOT 14) Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 15 APPENDIX II Valley Medical Center Construction Area - Proposed Site Plan Map #343 Removal Tree Landmark Tree (To be Protected) Construction Limits-Tree Protection Fence location Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 16 APPENDIX III Significant Tree Inventory Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 1 Red Maple 20 Fair 14 Yes 1 I No 2 Red Maple 21 Fair 14 Yes 1 I No 3 Cherry 22 Poor 14 Yes 1 I No 4 Cherry 23 Fair 14 Yes 1 I No 5 Cherry 14 Fair 12 Yes 1 I No 6 Cherry 12 Fair 10 Yes 1 I No 7 Cherry 21 Fair 14 Yes 1 I No 8 Cherry 16 Poor 12 Yes 1 I No 9 Red Maple 26 Fair 16 Yes 1 I No 10 Red Maple 12 Fair 10 Yes 1 I No 11 Red Maple 12 Fair 10 Yes 1 I No 12 Red Maple 12 Fair 10 Yes 1 I No 18 Cherry 9,6 Fair 8 Yes 2 I No 19 Cherry 6,5 Poor 5 Yes 2 I No 20 Cherry 6 Poor 4 Yes 2 I No 21 Red Maple 10 Poor 6 Yes 2 I No 22 Cherry 11 Fair 8 Yes 2 I No 24 Black Pine 6 Fair 4 Yes 2 I No 25 Black Pine 6 Fair 4 Yes 2 I No 26 London Plane 28 Fair 20 Yes 1 I No 27 London Plane 26 Fair 20 Yes 1 I No 28 London Plane 21 Fair 20 Yes 1 I No 29 London Plane 24 Fair 20 Yes 1 I No 30 London Plane 24 Fair 20 Yes 1 I No 31 London Plane 22 Fair 20 Yes 1 I No 32 London Plane 22 Fair 20 Yes 1 I No 33 London Plane 28 Fair 20 Yes 1 I No 34 Norway Maple 6 Fair 4 Yes 3 I No 35 Norway Maple 5 Fair 4 Yes 3 1 No 36 Norway Maple 5 Fair 4 Yes 3 1 No 37 Norway Maple 6 Fair 4 Yes 1 I No 38 Norway Maple 6 Fair 4 Yes 1 I No 39 Norway Maple 6 Fair 4 Yes 1 I No 40 Norway Maple 6 Fair 4 Yes 1 I No 41 Norway Maple 6 Fair 4 Yes 1 I No 42 Norway Maple 8 Fair 6 Yes 1 I No 43 Norway Maple 8 Fair 6 Yes 1 I No 44 Norway Maple 7 Fair 6 Yes 1 I No 45 Scotch Pine 9 Good 6 Yes 1 I No 46 Scotch Pine 8 Good 6 Yes 1 I No Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 17 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 47 Scotch Pine 9 Good 6 Yes 1 I No 48 Scotch Pine 8 Good 6 Yes 1 I No 49 Scotch Pine 8 Good 6 Yes 1 I No 50 Scotch Pine 6 Good 6 Yes 1 I No 51 Cherry 6 Fair 4 Yes 1 I No 56 Cherry 6 Fair 4 Yes 1 I No 65 Norway Maple 11 Good 8 Yes 4 I No Columnar 66 Norway Maple 10 Good 8 Yes 4 I No Columnar 67 Norway Maple 9 Good 6 Yes 4 I No Columnar 68 Norway Maple 6 Fair 4 Yes 4 I No Columnar 69 Norway Maple 9 Fair 6 Yes 4 I No Columnar 70 Norway Maple 11 Fair 8 Yes 4 I No Columnar 71 Norway Maple 11 Fair 8 Yes 4 I No Columnar 72 Flowering Plum 18 Fair 10 Yes 4 I No 73 Juniper 9 Good 4 Yes 4 I No Ornamental 74 Norway Maple 14 Good 8 Yes 4 I No 75 Sweetgum 6 Good 5 Yes 4 I No 76 Flowering Plum 9 Poor 4 Yes 4 I No 77 Norway Maple 10 Fair 6 Yes 4 I No 78 Flowering Plum 12 Poor 8 Yes 4 I No 79 Cherry 10 Fair 8 Yes 4 I No 80 Scotch Pine 11 Poor 8 Yes 4 I No 81 Deciduous 1 15 Poor 8 Yes 4 I No 82 Sweetgum 6 Good 5 Yes 5 I No 83 Sweetgum 6 Good 5 Yes 5 I No 84 Sweetgum 6 Good 5 Yes 5 I No 86 Cherry 8 Fair 4 Yes 5 I No 87 Cherry 11,11 Fair 6 Yes 5 I No 88 Cherry 12 Fair 6 Yes 5 I No 89 Cherry 17 Fair 6 Yes 5 I No 90 Cherry 11 Fair 6 Yes 5 I No 91 Cherry 11,11 Fair 6 Yes 5 I No 92 Cherry 10 Fair 6 Yes 5 I No 93 Cherry 10 Fair 6 Yes 5 I No 94 Mountain Ash 7 Fair 6 Yes 5 I No 95 Bigleaf Maple 10 Fair 8 Yes 5 I No 96 Cherry 14,6 Fair 8 Yes 4 I No 97 Cherry 12 Fair 8 Yes 4 I No 98 Cherry 16 Fair 6 Yes 4 I No 99 Japanese Maple 8,6 Good 4 Yes 4 I No 100 Magnolia 8 Fair 6 Yes 4 I No 101 Norway Maple 14 Good 8 Yes 4 I No Columnar 102 Norway Maple 18 Fair 10 Yes 4 I No Columnar Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 18 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 103 Norway Maple 17 Fair 10 Yes 4 I No Columnar 104 Norway Maple 18 Fair 10 Yes 4 I No Columnar 105 Norway Maple 20 Fair 10 Yes 4 I No Columnar 106 Norway Maple 7 Fair 5 Yes 4 I No Columnar 107 Red Maple 16 Fair 8 Yes 4 I No 108 Red Maple 8 Fair 6 Yes 4 I No 109 Red Maple 14 Fair 6 Yes 4 I No 110 Red Maple 14 Fair 6 Yes 4 I No 111 Red Maple 14 Fair 8 Yes 4 I No 112 Red Maple 15 Fair 8 Yes 4 I No 113 Red Maple 15 Fair 10 Yes 4 I No 114 Red Maple 10 Fair 6 Yes 4 I No 115 Red Maple 10 Poor 8 Yes 4 I No 116 Deciduous 2 10,8 Fair 6 Yes 4 I No 117 Deciduous 2 10,7 Fair 6 Yes 4 I No 118 Scotch Pine 16,16 Fair 8 Yes 4 I No 119 Scotch Pine 18 Fair 8 Yes 4 I No 120 Scotch Pine 17 Fair 8 Yes 4 I No 121 Scotch Pine 17 Fair 8 Yes 4 I No 122 Scotch Pine 12,12 Fair 8 Yes 4 I No 123 Dogwood 9 Very Poor 6 No 4 I No 124 Scotch Pine 19 Fair 12 Yes 4 I No 125 Scotch Pine 18 Fair 12 Yes 4 I No 126 Scotch Pine 6 Fair 5 Yes 4 I No 127 Scotch Pine 8 Fair 6 Yes 4 I No 128 Scotch Pine 6 Fair 5 Yes 4 I No 129 Dogwood 8 Poor 6 Yes 4 I No 130 Dogwood 9 Poor 6 Yes 4 I No 131 Scotch Pine 18 Fair 12 Yes 4 I No 132 Scotch Pine 17 Fair 12 Yes 4 I No 133 Dogwood 9,6 Poor 6 Yes 4 I No 134 Scotch Pine 16 Fair 12 Yes 4 I No 135 Scotch Pine 22 Fair 16 Yes 4 I No 136 Scotch Pine 20 Fair 16 Yes 4 I No 137 Dogwood 8 Poor 6 Yes 4 I No 138 Scotch Pine 16 Fair 12 Yes 4 I No 139 Scotch Pine 18 Fair 12 Yes 4 I No 140 Scotch Pine 18 Fair 12 Yes 4 I No 141 Dogwood 9 Poor 6 Yes 4 I No 142 Red Maple 10 Fair 6 Yes 4 I No 143 Red Maple 9 Fair 6 Yes 4 I No 144 Scotch Pine 20 Fair 12 Yes 4 I No 145 Red Maple 8 Fair 3 Yes 1 I No Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 19 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 146 Cherry 8 Poor 3 Yes 1 I No 147 Cherry 7 Poor 3 Yes 1 I No 148 Cherry 9 Poor 4 Yes 1 I No 149 Royal Burgundy Cherry 6 Fair 4 Yes 1 III No Arboretum 150 Pyramidal European Hornbeam 6 Fair 4 Yes 1 III No Arboretum 151 Persian Parrotia 6 Fair 4 Yes 1 III No Arboretum 152 Lavelle Hawthorne 9 Fair 6 Yes 1 III No Arboretum 153 Japanese Hornbeam 8 Fair 6 Yes 1 III No Arboretum 154 Purple Prince Flowering Crabapple 8 Fair 6 Yes 1 III No Arboretum 155 Henry Maple 6 Fair 4 Yes 1 III No Arboretum 156 Japanese Cedar 11 Fair 8 Yes 1 III No Arboretum 157 Spire Flowering Cherry 7 Fair 6 Yes 1 III No Arboretum 158 Tatarian Maple 7 Fair 6 Yes 1 III No Arboretum 159 Pacific Sunset Maple 10 Fair 8 Yes 1 III No Arboretum 160 Leprechaun Ash 6 Fair 6 Yes 1 III No Arboretum 161 Japanese Snowbell 7 Good 6 Yes 1 III No Arboretum 162 Donald Wyman Crabapple 6 Fair 6 Yes 1 III No Arboretum 163 Ginkgo 8 Good 6 Yes 1 III No Arboretum 164 Hinoki Cypress 6 Fair 4 Yes 1 III No Arboretum 165 Sweet Gum Clyde's Form 11 Poor 8 Yes 1 III No Arboretum 166 Canada Red Chokecherry 11 Fair 8 Yes 1 III No Arboretum 167 Flame Amur Maple 10 Fair 8 Yes 1 III No Arboretum 168 Amur Maackia 8 Fair 6 Yes 1 III No Arboretum 169 Shore Pine 9 Fair 6 Yes 1 III No Arboretum 170 Golden Desert Ash 7 Fair 6 Yes 1 III No Arboretum 171 Washington Hawthorn 6 Fair 6 Yes 1 III No Arboretum 172 Flamingo Boxelder Maple 8 Fair 6 Yes 1 III No Arboretum 173 Wireless Zelkova 13 Fair 6 Yes 1 III No Arboretum Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 20 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 174 Purple leaved Eastern Redbud 6 Fair 6 Yes 1 III No Arboretum 175 Flowering Plum 8 Fair 6 Yes 1 I No 176 Ginkgo 7 Fair 4 Yes 1 I No 177 Crabapple 6,6 Fair 6 Yes 1 I No 178 White Ash 21 Poor 3 Yes 1 I No 179 White Ash 21 Poor 3 Yes 1 I No 180 Flowering Plum 15 Fair 6 Yes 1 I No 181 Red Maple 14 Fair 8 Yes 1 I No 182 Horse Chestnut 26 Fair 12 Yes 1 I No 183 Black Locust 11 Poor 4 Yes 1 I No 184 White Ash 10 Poor 4 Yes 1 I No 185 White Ash 11 Poor 4 Yes 1 I No 186 White Ash 14 Poor 6 Yes 1 I No 187 White Ash 14 Poor 6 Yes 1 I No 188 Red Maple 16 Fair 10 Yes 1 I No 189 Red Maple 10 Fair 6 Yes 1 I No 190 Red Maple 13 Fair 8 Yes 1 I No 191 Red Maple 13 Poor 8 Yes 1 I No 192 Red Maple 12 Poor 6 Yes 1 I No 193 Red Maple 11 Fair 6 Yes 1 I No 194 Red Maple 11 Fair 6 Yes 1 I No 195 Red Maple 12 Poor 6 Yes 1 I No 196 London Plane 12 Fair 8 Yes 1 I No 197 London Plane 15 Fair 8 Yes 1 I No 198 Red Maple 13 Poor 8 Yes 1 I No 199 London Plane 12 Fair 8 Yes 1 I Yes 200 London Plane 13 Fair 8 Yes 1 I Yes 201 London Plane 12 Fair 6 Yes 1 I Yes 202 London Plane 12 Fair 6 Yes 1 I No 203 Red Maple 9 Fair 16 Yes 1 I Yes 204 Red Maple 7 Very Poor 12 No 1 I Yes 205 Red Maple 10 Poor 12 Yes 1 I Yes 206 Red Maple 9 Poor 12 Yes 1 I Yes 207 Red Maple 8 Poor 12 Yes 1 I Yes 208 Red Maple 9 Poor 12 Yes 1 I Yes 209 Red Maple 8 Fair 12 Yes 1 I No 210 Red Maple 8 Fair 12 Yes 1 I No 211 Red Maple 7 Fair 12 Yes 1 I No 212 Red Maple 10 Fair 12 Yes 1 I No 213 Red Maple 10 Fair 12 Yes 1 I Yes 214 Red Maple 11 Fair 12 Yes 1 I No 215 Red Maple 8 Poor 12 Yes 1 I Yes Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 21 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 216 Red Maple 7 Fair 12 Yes 1 I Yes 217 Red Maple 9 Fair 12 Yes 1 I Yes 218 Red Maple 9 Fair 12 Yes 1 I Yes 219 Red Maple 8 Fair 12 Yes 1 I Yes 220 Red Maple 13 Fair 12 Yes 1 I No 221 Red Maple 12 Fair 8 Yes 1 I No 222 Red Maple 13 Fair 8 Yes 1 I No 223 London Plane 13 Fair 10 Yes 1 I No 224 Black Pine 13 Fair 10 Yes 1 I No 225 Black Pine 12 Poor 10 Yes 1 I Yes 226 Douglas-fir 22 Fair 12 Yes 1 I Yes 227 Douglas-fir 14 Fair 12 Yes 1 I Yes 228 Douglas-fir 12 Fair 12 Yes 1 I Yes 229 Douglas-fir 14 Fair 12 Yes 1 I Yes 230 Douglas-fir 13 Fair 12 Yes 1 I Yes 231 Douglas-fir 14 Fair 12 Yes 1 I Yes 232 Red Oak 13 Fair 10 Yes 1 I Yes 233 Cherry 8 Very Poor 6 No 1 I Yes 234 London Plane 22 Fair 10 Yes 1 I No 235 London Plane 15 Fair 8 Yes 1 I No 236 Norway Maple 13 Fair 6 Yes 1 I No Columnar 237 Norway Maple 10 Fair 6 Yes 1 I No Columnar 238 Norway Maple 13 Fair 6 Yes 1 I No Columnar 239 Norway Maple 14 Fair 10 Yes 1 I No Columnar 240 Norway Maple 15 Fair 10 Yes 1 I No Columnar 241 Norway Maple 15 Fair 10 Yes 1 I No Columnar 242 Norway Maple 11 Fair 10 Yes 1 I No Columnar 243 Norway Maple 12 Fair 10 Yes 1 I No Columnar 244 Norway Maple 11 Fair 10 Yes 1 I No Columnar 245 Norway Maple 12 Fair 10 Yes 1 I No Columnar 246 Norway Maple 11 Fair 10 Yes 1 I No Columnar 247 Norway Maple 11 Fair 10 Yes 1 I No Columnar 248 Norway Maple 11 Fair 10 Yes 1 I No Columnar 249 Norway Maple 12 Fair 10 Yes 1 I No Columnar 250 Norway Maple 14 Fair 10 Yes 1 I No Columnar 251 Callery Pear 13 Fair 8 Yes 1 I No 252 Callery Pear 9 Fair 8 Yes 1 I No 253 Cherry 12 Fair 8 Yes 1 I No 254 Callery Pear 10 Fair 8 Yes 1 I No 255 Callery Pear 10 Fair 8 Yes 1 I No 256 Callery Pear 10 Fair 8 Yes 1 I No 257 White Ash 8 Poor 6 Yes 1 I No 258 White Ash 8 Poor 6 Yes 1 I No Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 22 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 259 White Ash 8 Poor 6 Yes 1 I No 260 White Ash 7 Fair 6 Yes 1 I No 261 White Ash 7 Fair 6 Yes 1 I No 262 Red Maple 7 Fair 6 Yes 1 I No 263 Red Maple 7 Fair 6 Yes 1 I No 264 London Plane 10 Fair 6 Yes 1 I No 265 Blue Atlas Cedar 26 Fair 8 Yes 1 I No 266 Crabapple 7,4 Poor 4 Yes 1 I No 267 Crabapple 6,5 Poor 4 Yes 1 I No 268 London Plane 9 Fair 6 Yes 1 I No 269 London Plane 6 Fair 4 Yes 1 I No 270 Crabapple 6 Poor 4 Yes 1 I No 271 Crabapple 6 Poor 4 Yes 1 I No 272 Crabapple 6 Poor 4 Yes 1 I No 273 London Plane 8 Fair 6 Yes 1 I No 274 London Plane 9 Fair 6 Yes 1 I No 275 London Plane 8 Fair 6 Yes 1 I No 276 London Plane 10 Fair 6 Yes 1 I No 277 Sweetgum 13 Fair 8 Yes 1 I No 278 London Plane 8 Fair 6 Yes 1 I No 279 London Plane 9 Fair 6 Yes 1 I No 280 London Plane 17 Fair 14 Yes 1 I No 281 London Plane 16 Fair 14 Yes 1 I No 282 London Plane 18 Fair 14 Yes 1 I No 283 London Plane 17 Fair 14 Yes 1 I No 284 Douglas-fir 17 Good 14 Yes 6 II No Buffer 285 London Plane 18 Fair 12 Yes 6 I No 286 London Plane 18 Fair 14 Yes 6 I No 287 Cottonwood 16 Dead - 6 II No Buffer 288 Cottonwood 16 Dead - 6 II No Buffer 289 Cottonwood 11 Fair 10 Yes 6 II No Buffer 290 Douglas-fir 12 Fair 12 Yes 6 II No Buffer 291 Douglas-fir 12 Good 12 Yes 6 II No Buffer 292 London Plane 16 Fair 12 Yes 6 I No 293 London Plane 16 Fair 12 Yes 6 I No 294 London Plane 17 Fair 12 Yes 6 I No 295 London Plane 16 Fair 10 Yes 6 I No 296 London Plane 15 Fair 10 Yes 6 I No 297 Norway Maple 14 Fair 8 Yes 6 I No Columnar 298 Norway Maple 12 Fair 8 Yes 6 I No Columnar 299 Norway Maple 11 Fair 8 Yes 6 I No Columnar 300 Norway Maple 10 Fair 8 Yes 6 I No Columnar Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 23 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 301 Norway Maple 9 Fair 8 Yes 6 I No Columnar 302 Norway Maple 9 Fair 8 Yes 6 I No Columnar 303 Norway Maple 9 Fair 8 Yes 6 I No Columnar 304 Norway Maple 9 Fair 8 Yes 6 I No Columnar 305 Norway Maple 8 Fair 8 Yes 6 I No Columnar 306 Norway Maple 9 Fair 8 Yes 6 I No Columnar 307 Norway Maple 9 Fair 8 Yes 6 I No Columnar 308 Norway Maple 10 Fair 8 Yes 6 I No Columnar 309 Norway Maple 9 Fair 8 Yes 6 I No Columnar 310 Norway Maple 10 Fair 8 Yes 6 I No Columnar 311 Norway Maple 9 Fair 8 Yes 6 I No Columnar 312 Norway Maple 9 Fair 8 Yes 6 I No Columnar 313 London Plane 20 Fair 12 Yes 6 I No 314 London Plane 13 Fair 10 Yes 6 I No 315 London Plane 16 Fair 10 Yes 6 I No 316 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 317 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 318 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 319 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 320 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 321 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 322 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 323 Norway Maple 10 Fair 8 Yes 6 I Yes Columnar 324 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 325 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 326 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 327 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 328 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 329 Norway Maple 8 Fair 8 Yes 6 I Yes Columnar 330 Norway Maple 9 Fair 8 Yes 6 I Yes Columnar 331 Norway Maple 10 Fair 8 Yes 6 I Yes Columnar 332 Red Alder 6 Poor 6 Yes 6 I No 333 Black Pine 12 Fair 12 Yes 6 I No 334 Bigleaf Maple 13 Poor 10 6 II No Buffer 335 Red Alder 14 Fair 12 Yes 6 II No Buffer 336 Bigleaf Maple 14 Fair 12 Yes 6 II No Buffer 337 Bigleaf Maple 13 Fair 12 Yes 6 II No Buffer 338 Red Alder 14 Very Poor 10 6 II No Buffer 339 Red Alder 8,9 Fair 8 Yes 6 II No Buffer 340 Bigleaf Maple 20 Fair 16 Yes 6 II No Buffer 341 Cherry 8,7,7 Poor 8 7 II Yes 342 Bigleaf Maple 21,21,21 Fair 16 Yes 7 II No Buffer Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 24 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 343* Douglas-fir 36 Fair 16 Yes 7 II No Buffer; Ivy 344 Bigleaf Maple 14 Poor 10 7 II No Buffer; Ivy 345 Bigleaf Maple 14 Poor 10 7 II No Buffer; Ivy 346 Bigleaf Maple 21 Poor 10 7 II No Buffer; Ivy 347 Bigleaf Maple 14 Poor 10 7 II No Buffer; Ivy 348 Douglas-fir 24 Poor 12 8 II No Buffer; Ivy 349 Red Oak 14 Fair 10 Yes 9 I Yes 350 Red Oak 13 Fair 10 Yes 9 I Yes 351 Red Oak 13 Fair 10 Yes 10 I Yes Ivy 352 Red Oak 12 Fair 10 Yes 10 I Yes Ivy 353 Red Oak 13 Fair 10 Yes 10 I Yes Ivy 354 Red Oak 9 Poor 6 Yes 10 I No 355 Red Oak 10 Fair 6 Yes 10 I No 356 Red Oak 6 Poor 4 Yes 10 I No 357 Red Oak 10 Fair 6 Yes 10 I No 358 Red Oak 13 Fair 8 Yes 11 I No 359 Cherry 9 Fair 6 Yes 11 I No 360 Cherry 9 Fair 6 Yes 11 I No 361 Cherry 6 Poor 6 Yes 11 I No 362 Red Oak 15 Fair 10 Yes 11 I Yes 363 Grand Fir 8 Fair 6 Yes 11 I Yes 364 White Fir 11 Fair 8 Yes 11 I Yes 365 White Fir 12 Fair 8 Yes 11 I Yes 366 Red Maple 12 Fair 6 Yes 12 I No 367 Red Maple 6 Poor 6 Yes 12 I No 368 Red Maple 11 Dead - No 12 I No 369 Red Maple 13 Fair 6 Yes 12 I No 370 London Plane 17 Fair 8 Yes 12 I No 371 London Plane 16 Fair 6 Yes 12 I No 372 Cherry 9 Very Poor - No 12 I No 373 Cherry 6 Poor 4 Yes 12 I No 374 Cherry 6 Poor 6 Yes 12 I No 375 Cherry 8 Poor 6 Yes 8 I No 376 Western Red Cedar 14 Fair 12 Yes 8 II No Buffer 377 Bigleaf Maple 26,26,26 Fair 14 Yes 8 II No Buffer; Ivy 378 Bigleaf Maple 24 Poor 16 8 II No Buffer; Ivy 379 Bigleaf Maple 20,14 Poor 12 8 II No Buffer; Ivy 380 Douglas-fir 18 Poor 14 8 II No Buffer 381 Bigleaf Maple 26 Fair 20 Yes 8 II No Buffer; Ivy 382 Western Red Cedar 22 Fair 16 Yes 8 II No Buffer Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 25 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 383 Western Red Cedar 13 Fair 10 Yes 8 II No Buffer 384 Bigleaf Maple 22 Fair 16 Yes 8 II No Buffer; Ivy 385 Western Red Cedar 16 Fair 12 Yes 8 II No Buffer 386 Western Red Cedar 16 Very Poor - 8 II No Buffer; Broken top/ Ivy 387 White Ash 12 Fair 10 Yes 8 II Yes Ivy 388 White Ash 10 Poor 8 No 8 II Yes Ivy 389 White Fir 14 Fair 12 Yes 8 II No Buffer 390 White Ash 10,11 Fair 10 Yes 8 II Yes 391 Bigleaf Maple 9 Fair 8 Yes 8 II Yes Ivy 392 Scotch Pine 16 Poor 12 No 8 II Yes Ivy 393 Bigleaf Maple 15 Very Poor 10 No 8 II Yes Ivy 394 London Plane 16 Poor 10 No 8 II Yes Ivy 395 Western Red Cedar 18 Very Poor - No 8 II Yes Ivy 396 Red Maple 14 Very Poor - No 8 II Yes Ivy 397 White Ash 22,16 Dead - No 8 II Yes Ivy 398 Bigleaf Maple 26 Dead - No 8 II Yes Ivy 399 White Ash 12 Very Poor - No 8 II Yes Ivy 400 Bigleaf Maple 16x4 Fair 16 Yes 8 II No Buffer; Ivy 401 Western Red Cedar 20 Poor 16 8 II No Buffer; Ivy 402 Bigleaf Maple 12x3 Poor 12 8 II No Buffer; Ivy 403 White Ash 12 Poor 10 8 II No Buffer; Ivy 404 Bigleaf Maple 8,7 Very Poor - 8 II No Buffer; Ivy 405 Western Red Cedar 13 Very Poor - 8 II No Buffer; Ivy 406 Bigleaf Maple 11,11 Fair 8 Yes 1 II No Off-site? 407 Bigleaf Maple 10x4 Poor 10 No 1 II No Off-site? 408 Bigleaf Maple 16 Poor 12 1 II No Buffer 409 Bigleaf Maple 12 Poor 10 No 1 II No Off-site? 410 White Ash 14 Fair 12 Yes 1 II No Off-site? 411 Cottonwood 20 Fair 16 Yes 1 II No Off-site?/ Wetland 412 Cottonwood 20 Fair 16 Yes 1 II No Wetland 413 Cottonwood 26 Fair 16 Yes 1 II No Wetland 414 Cottonwood 28 Fair 20 Yes 1 II No Wetland 415 Cottonwood 26 Fair 20 Yes 1 II No Off-site?/ Wetland 416 Cottonwood 26 Fair 20 Yes 1 II No Off-site?/ Wetland 417 Cottonwood 28 Fair 20 Yes 1 II No Wetland Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 26 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 418 Cottonwood 24 Fair 16 Yes 1 II No Wetland 419 Red Alder 12 Fair 10 Yes 1 II No Wetland 420 Cottonwood 24 Poor 16 1 II No Wetland 421 Cottonwood 14 Fair 14 Yes 1 II No Wetland 422 Willow 12 Fair 10 Yes 1 II No Buffer 423 Cottonwood 26 Fair 20 Yes 1 II No Buffer 424 Cottonwood 20x5 Fair 25 Yes 1 II No Buffer 425 Cottonwood 18 Fair 16 Yes 1 II No Buffer 426 Cottonwood 12,10 Poor 12 1 II No Buffer 427 Red Alder 6 Poor 6 1 II No Buffer 428 Cottonwood 22,9 Fair 16 Yes 1 II No Buffer 429 Cottonwood 26 Fair 20 Yes 1 II No Buffer 430 Willow 14 Poor 10 1 II No Buffer 431 Cottonwood 22 Fair 20 Yes 1 II No Buffer 432 Cottonwood 11 Fair 10 Yes 1 II No Buffer 433 Cottonwood 24 Fair 20 Yes 1 II No Buffer 434 Cottonwood 6 Poor 6 1 II No Buffer 435 Willow 10x3 Fair 10 Yes 1 II No Buffer 436 Willow 8,8 Poor 8 1 II No Buffer 437 Red Alder 14 Poor 10 1 II No Wetland 438 Willow 10 Poor 10 1 II No Wetland 439 Cottonwood 13 Fair 13 Yes 1 II No Wetland 440 Cottonwood 15 Fair 12 Yes 1 II No Wetland 441 Cottonwood 16,11 Fair 12 Yes 1 II No Wetland 442 Cottonwood 17,11 Fair 12 Yes 1 II No Wetland 443 Cottonwood 20,10 Fair 15 Yes 1 II No Wetland 444 Willow 9,6,6 Poor 10 1 II No Wetland 445 Red Alder 11 Fair 10 Yes 1 II No Wetland 446 Red Alder 12 Fair 10 Yes 1 II No Wetland 447 Red Alder 14 Fair 10 Yes 1 II No Wetland 448 Cottonwood 12 Poor 12 1 II No Wetland 449 Red Alder 9 Poor 9 1 II No Wetland 450 Red Alder 10 Fair 10 Yes 1 II No Wetland 451 Cottonwood 16 Fair 16 Yes 1 II No Wetland 452 Cottonwood 24 Fair 2 Yes 1 II No Wetland 453 Cottonwood 26 Fair 20 Yes 1 II No Wetland 454 Cottonwood 26 Fair 20 Yes 1 II No Wetland 455 Red Alder 12 Poor 10 1 II No Wetland 456 Cottonwood 26 Fair 20 Yes 1 II No Wetland 457 Red Alder 10 Poor 10 1 II No Wetland 458 Cottonwood 28 Fair 28 Yes 1 II No Wetland 459* Cottonwood 32 Fair 28 Yes 1 II No Wetland 460 Cottonwood 18 Fair 20 Yes 1 II No Wetland Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 27 Tree #** Species DBH (in) Condition Root Protection Radius (ft) Savable Based on Health? Lot # Type Project Remove? Notes 461 Cottonwood 20 Dead - 1 II No Wetland 462 Cottonwood 20 Dead - 1 II No Wetland 463 Cottonwood 26 Fair 25 Yes 1 II No Wetland 464 Cottonwood 20 Dead - 1 II No Wetland 465 Cottonwood 22 Fair 20 Yes 1 II No Wetland 466 Willow 8 Fair 8 Yes 1 II No Wetland 467 Willow 10 Fair 8 Yes 1 II No Wetland 468 Willow 9 Poor 8 1 II No Wetland 469 Willow 8 Poor 8 1 II No Wetland 470 Willow 12 Fair 8 Yes 1 II No Wetland 471 Willow 10 Fair 8 Yes 1 II No Wetland 472 Willow 9 Fair 8 Yes 1 II No Wetland 473 Willow 8 Poor 8 1 II No Wetland 474 Willow 7 Fair 8 Yes 1 II No Wetland 475 Willow 9 Poor 8 1 II No Wetland 476 Willow 8 Fair 8 Yes 1 II No Wetland 477 Willow 10 Fair 8 Yes 1 II No Wetland 478 Willow 10 Fair 8 Yes 1 II No Wetland 479 Willow 11 Fair 8 Yes 1 II No Wetland 480 Willow 6 Poor 8 1 II No Wetland 481 Willow 7 Poor 8 1 II No Wetland 482 Willow 10 Fair 8 Yes 1 II No Wetland 483 Willow 8 Fair 8 Yes 1 II No Wetland 484 Willow 9 Poor 8 1 II No Wetland 485 Willow 12 Poor 8 1 II No Wetland 486 Willow 11 Poor 8 1 II No Wetland 487 Willow 9 Fair 8 Yes 1 II No Wetland 488 Willow 10 Fair 8 Yes 1 II No Wetland 489 Willow 10 Fair 8 Yes 1 II No Wetland 490 Willow 9 Fair 8 Yes 1 II No Wetland *Landmark Tree **Some non-significant sized trees were identified, but excluded from this report, thus some tree numbers are missing. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 28 APPENDIX IV Renton Tree Retention Worksheet None Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 29 APPENDIX V Tree Protection Fence Detail Temporary Chain-Link on Driven Posts Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 30 APPENDIX VI Tree Risk Assessment – Description of Process The purpose of this document is to summarize the methodology of modern tree risk assessment for users of this type of information. This methodology has been put into place by the International Society of Arboriculture and has been in use in its present form since 2013. It updates the initial changes put into place in 2011. Tree risk assessment is the systematic and qualitative process to identify, analyze, and evaluate tree risk. Tree risk evaluation is the process of comparing the assessed risk against given risk criteria to determine the significance of the risk. This methodology is based on the ANSI A300 standard1 for tree risk assessment. This standard is supported by a best management practices guide2. Those qualified to do tree risk assessment have the qualification from the International Society of Arboriculture called ‘Tree Risk Assessor Qualified.’ The methodology for tree risk assessment is more recently detailed in the authoritative tree risk assessment manual3, which provides the state of the art for tree risk assessment. Risk is the evaluation and categorizing of both the likelihood (probability) of occurrence of a tree or tree part failure, and the severity of consequences (value of and damage to the target that is impacted). The magnitude of risk can be categorized and compared to the client’s tolerances to determine if the risk is acceptable. Tree risk management is the application of policies, procedures and practices used to identify, evaluate, mitigate, monitor, and communicate tree risk. It is up to the tree owner to determine what level of risk they are able to tolerate, and to conduct any mitigation required when that risk is unacceptable. There are 3 levels of tree risk assessment: Level 1 – assessment is limited to a visual assessment of the tree(s) near specified targets, such as along roadways or utility rights-of-ways to identify specified conditions or obvious defects. Assessment shall be from a specified perspective such as foot, vehicle, or aerial patrol. Level 2 – assessment shall include a 360 degree, ground based visual inspection of the tree crown, trunk, trunk flare, above-ground roots, and site conditions around the tree in 1 ANSI A300 (Part 9 – 2011) – American National Standard for Tree Care Operations – Tree, Shrub, and Other Woody Plant Management – Standard Practices (Tree Risk Assessment a. Tree Structure Assessment). American National Standards Institute, Inc. Washington D.C. 14 pgs. 2 Smiley, E. Thomas, Nelda Matheny, and Sharon Lilly. 2011. Best Management Practices – Tree Risk Assessment. International Society of Arboriculture. Champaign, IL. 3 Dunster, Dr. Julian et al. 2013. Tree Risk Assessment Manual. International Society of Arboriculture. Champaign, IL. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 31 relation to targets. It may include sounding the stem to look for internal decay and/or the use of hand tools, or binoculars to view the crown better. Surrounding site conditions are also evaluated. Level 3 – all of the level 2 techniques, plus advanced methodologies such as coring or drilling the tree stem or roots to look for decay, a climbing assessment, probing, pull testing, or radiation, sonic, or subsurface root assessments. In tree risk assessment, targets are people who could be injured, property that may be damaged, or activities that could be disrupted by a tree failure. A tree must have a target for there to be a risk rating higher than ‘Low’. The target has a value and people are the highest value target, followed by structures, cars and other high value objects. Fences would be a low value target. As part of a target assessment, the assessor considers if the target can be moved out of reach of the tree or tree part that might fail, or if people could be excluded from the target area of the tree. As part of the risk analysis, the assessor must conduct a site analysis. This may include looking for signs of recent tree removal that may expose a previously sheltered subject tree to winds, construction activity that severed roots of the tree, or other site or soils conditions/changes that affected drainage or tree health. Defects often predispose a tree or part of a tree to failure. A key part of tree risk assessment is to categorize the likelihood of failure of the tree or a defective part. The tree or defect is examined, and the likelihood of failure is categorized in a matrix (below) as: Improbable, Possible, Probable, or Imminent. A tree with a lifting root plate would likely be categorized as ‘Imminent’ to fail. A tree with a broken and hanging branch that is still attached would likely be categorized as ‘Improbable’ or ‘Possible.’ Cracks in a trunk or branch would likely be categorized as ‘Probable’ or ‘Imminent’ to fail. This rating of ‘Likelihood of Failure’ is then brought forward into the Likelihood of Failure and Impact matrix to assign a level of risk of the tree. The level of risk is then categorized as Low, Moderate, High, or Extreme. The following 2 tables are used by Tree Risk Assessor Qualified professionals to rate the risk of the tree. Note: this system does not use a numerical rating system as old systems used. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 32 Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 33 APPENDIX VII Glossary of Forestry and Arboricultural Terminology DBH: Diameter at Breast Height (measured 4.5 ft. above the ground line on the high side of the tree). Live Crown Ratio: Ratio of live foliage on the stem of the tree. Example: A 100’ tall tree with 40 feet of live crown would have a 40% live crown ratio. Conifers with less than 30% live crown ratio are generally not considered to be long-term trees in forestry. Crown: Portion of a trees stem covered by live foliage. Crown Position: Position of the crown with respect to other trees in the stand. Dominant Crown Position: Receives light from above and from the sides. Codominant Crown Position: Receives light from above and some from the sides. Intermediate Crown Position: Receives little light from above and none from the sides. Trees tend to be slender with poor live crown ratios. Suppressed Crown Position: Receives no light from above and none from the sides. Trees tend to be slender with poor live crown ratios. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 34 Individual Tree Ratings Key - Condition RATING SYMBOL DEFINITION VERY GOOD VG • Balanced crown that is characteristic of the species • Normal lateral and terminal branch growth rates for the species and soil type • Stem sound, normal bark vigor • No root problems • No insect or disease problems • Long-term, attractive tree GOOD G • Crown lacking symmetry but nearly balanced • Normal lateral and terminal branch growth rates for the species and soil type • Minor twig dieback O.K. • Stem sound, normal bark vigor • No root problems • No or minor insect or disease problems – insignificant • Long-term tree FAIR F • Crown lacking symmetry due to branch loss • Slow lateral and terminal branch growth rates for the species and soil type • Minor and major twig dieback – starting to decline • Stem partly unsound, slow diameter growth and low bark vigor • Minor root problems • Minor insect or disease problems • Short-term tree 10-30 years POOR P • Major branch loss – unsymmetrical crown • Greatly reduced growth • Several structurally import dead or branch scaffold branches • Stem has bark loss and significant decay with poor bark vigor • Root damage • Insect or disease problems – remedy required • Short-term tree 1-10 years VERY POOR VP • Lacking adequate live crown for survival and growth • Severe decline • Minor and major twig dieback • Stem unsound, bark sloughing, previous stem or large branch failures, very poor bark vigor • Severe root problems or disease • No or minor insect or disease problems • Mortality expected within the next few years DEAD DEAD • Dead Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 35 Cultural Care Needs: ABBRV. ACTIVITY DESCRIPTION CC Crown Cleaning Pruning of dead, dying, diseased, damaged, or defective branches over 1/2 inch in diameter –includes removal of dead tops CT Crown Thinning Pruning of branches described in crown cleaning, plus thinning of up to 20% of the live branches over ½ inch diameter. Branch should be 1/3 to ½ the diameter of the lateral branch. Thinning should be well distributed throughout crown of tree, and should release healthy, long-term branches. RC Crown Reduction Reduction of the crown of a tree by pruning to lateral branches. Generally used to remove declining branches or to lighten end weight on long branches. CR Crown Raising Pruning of lower branches to remove deadwood or to provide ground or building clearances. RMV Remove Remove tree due to decline or hazardous conditions that cannot be mitigated by pruning. RS Remove Sprouts Remove basal sprouts from stem of tree. Rep Replace Tree is small – is in decline or dead. Replace with suitable tree species. HT Hazard Tree Tree is hazardous and cannot be mitigated by pruning. Recommendation is to remove tree. None No Work No work necessary at this time. Valley Medical Center – Revised Tree Protection Plan Washington Forestry Consultants, Inc. 36 APPENDIX VIII Assumptions and Limiting Conditions 1) Any legal description provided to the Washington Forestry Consultants, Inc. is assumed to be correct. Any titles and ownership's to any property are assumed to be good and marketable. No responsibility is assumed for matters legal in character. Any and all property is appraised or evaluated as though free and clear, under responsible ownership and competent management. 2) It is assumed that any property is not in violation of any applicable codes, ordinances, statutes, or other governmental regulations, unless otherwise stated. 3) Care has been taken to obtain all information from reliable sources. All data has been verified insofar as possible; however, Washington Forestry Consultants, Inc. can neither guarantee nor be responsible for the accuracy of information. 4) Washington Forestry Consultants, Inc. shall not be required to give testimony or to attend court by reason of this report unless subsequent contractual arrangements are made, including payment of an additional fee for such services as described in the fee schedule and contract of engagement. 5) Loss or alteration of any part of this report invalidated the entire report. 6) Possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person to whom it is addressed, without the prior expressed written or verbal consent of Washington Forestry Consultants, Inc.. 7) Neither all or any part of the contents of this report, nor copy thereof, shall be conveyed by anyone, including the client, to the public through advertising, public relations, news, sales or other media, without the prior expressed written or verbal consent of Washington Forestry Consultants, Inc. -- particularly as to value conclusions, identity of Washington Forestry Consultants, Inc., or any reference to any professional society or to any initialed designation conferred upon Washington Forestry Consultants, Inc. as stated in its qualifications. 8) This report and any values expressed herein represent the opinion of Washington Forestry Consultants, Inc., and the fee is in no way contingent upon the reporting of a specified value, a stipulated result, the occurrence neither of a subsequent event, nor upon any finding in to reported. 9) Sketches, diagrams, graphs, and photographs in this report, being intended as visual aids, are not necessarily to scale and should not be construed as engineering or architectural reports or surveys. 10) Unless expressed otherwise: 1) information contained in this report covers only those items that were examined and reflects the condition of those items at the time of inspection; and 2) the inspection is limited to visual examination of accessible items without dissection, excavation, probing, or coring. There is no warranty or guarantee, expressed or implied, that problems or deficiencies of the tree or other plant or property in question may not arise in the future. Note: Even healthy trees can fail under normal or storm conditions. The only way to eliminate all risk is to remove all trees within reach of all targets. Annual monitoring by an ISA Certified Arborist or Certified Forester will reduce the potential of tree failures. It is impossible to predict with certainty that a tree will stand or fail, or the timing of the failure. It is considered an ‘Act of God’ when a tree fails, unless it is directly felled or pushed over by man’s actions.