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HomeMy WebLinkAboutTR_ArboristReport_250123_v1 TreeSolutions.Net 2940 Westlake Ave. N #200 206-528-4670 Seattle, WA 98109 Project No. TS - 9379 Arborist Report To: Liz Wilmott, Kimley-Horn Site: 17803 108th Ave SE, Renton WA 98055 Re: Site Inventory Date: July 12, 2024 Project Arborists: Katherine Taylor ISA Certified Arborist #PN-8022A ISA Qualified Tree Risk Assessor John Wells Arborist Technician Attached: Table of Trees Site Map - Survey with Tree Solutions Mark Up Reference Documents: Bank Of America Redevelopment, Frontage Improvements, C1.1, Kimley- Horn, dated 6/7/2024 Summary We performed a tree inventory at the above addressed site in preparation of development planning and permitting. We inventoried and assessed 39 trees on site and nine offsite trees with canopies that overhang the site. The site trees all qualify as significant according to Renton Municipal Code (RMC) 4- 11-200. Eight of the offsite trees were in the right-of-way (ROW) and one (A) was on a neighboring property. This report is preliminary as we do not currently have any site plans for development. RMC 4-4-130 requires a permit for new site development and tree removal. Code section 4-4-30-H1a requires a minimum retention of 30 percent of significant trees on site and 30 tree units per acre. These units can come from retained trees (fewer trees required) or newly planted trees with a bond for tree maintenance and survival. Tree units are weighted by diameter at standard height (DSH) and a table is provided within the RMC. After development, site needs to have a minimum of 109 tree credits; currently it has 223 tree credits, not including the off-site trees shown on the inventory. The Bank of America redevelopment plans dated 6/7/2024 show frontage improvements to the east of the bank along the ROW. These plans shown do not impact any of the trees inventoried. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 2 Assignment and Scope of Work This report outlines the site inspection by Katherine Taylor and John Wells, of Tree Solutions Inc, on June 11, 2024. We were asked to visit the site and assess all trees on site. We were asked to produce an Arborist Report documenting our findings and management recommendations. Liz Wilmont, representative of Kimley-Horn and the property, requested these services to help in the development planning process. Observations Site The 157,868 square foot U-shaped site fronts 108th Ave SE in Renton and backs up to a parking lot for Fred Meyer in an adjacent parcel. There are five buildings on this parcel including a strip mall, a car wash, a gas station, a coffee shop, and one other building. The buildings are surrounded by pavement with periodic tree wells or divider strips surrounded by curbs. There were parking strips with existing trees in the ROW on SE 108th Ave and 180th Street SE adjacent to the site. Trees The predominant species on site included red maple (Acer rubrum), Austrian black pine (Pinus nigra) and Douglas fir (Pseudotsuga menziesii). Many of the trees we inventoried had exposed and damaged surface roots likely due to compaction of the soil and/or inadequate water access (Photo 1). Several trees had trunk girdling by their own roots, likely due to inattention during or before planting, or lack of understanding of good planting techniques. Several street trees appeared to have been topped and had unusual branching patterns as a result. These patterns indicate potential future challenges with pruning and tree health. Overall, most of the trees were noted as being in good or excellent health overall despite less-than-ideal growing conditions. Some locations were overrun with invasive ivy (Hedera sp.), a class C invasive species in WA state, as noted in the inventory. Some management of the ivy growth is recommended to reduce its negative impact on the health of the trees and other non-invasive plants on this site. There were some notable Austrian black pine trees growing in a grove tagged 729 to 738 that were in good health and should be preserved together if possible (Photo 2). There was also a mix of healthy Douglas-fir and Austrian black pine trees tagged 744 through 754 (Photo 3, Photo 4) growing north and west of the fast food restaurant on the neighboring property that should also be considered for retention. I have included marked-up survey of the site to serve as the site map and attached a table of trees that has detailed information about each tree. Discussion—Construction Impacts Proposed Plans The Bank of America redevelopment plans dated 6/7/2024 show frontage improvements to the east of the bank along the ROW. The plans include an improved retaining wall, regrading, and a relocated sidewalk and planter strip. None of the plans are within the recommended tree protection areas of the site or offsite trees. Therefore, no tree removals are proposed at this time and the site meets the 30 Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 3 percent retention requirement of significant trees and exceeds the required 109 tree credits at a rate of 30 credits per acre per RMC 4-4-130. High visibility fencing should be placed at the curb or edge of rockery to the north of trees 751 to 754 and 21 feet (dripline) east of tree 754 to prevent any encroachment during construction. Recommendations • Install high visibility fencing around trees 751 to 754 to protect them from encroachment during construction. • All pruning should be conducted by an ISA certified arborist following current and applicable ANSI A300 standards.1 • Obtain all necessary permits from the city of Renton prior to conducting any site work and tree management. Respectfully submitted, Katherine Taylor, Senior Consulting Arborist 1 ANSI A300 (Part 1) – 2017 American National Standards Institute. American National Standard for Tree Care Operations: Tree, Shrub, and Other Woody Plant Maintenance: Standard Practices (Pruning). New York: Tree Care Industry Association, 2017. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 4 Photographs Photo 1. Many of the trees in parking strips have girdling and surface roots. Photo 2. Google street view images from 2017 showing the healthy grove of pine trees that should be considered for retention. These are trees tagged 729-738. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 5 Photo 3. Google street view images from 2018 showing the healthy grove of pine trees that should be considered for retention. These are trees tagged 744-747. Photo 4. Google street view images from 2018 showing the healthy grove of Douglas-fir trees that should be considered for retention. These are trees tagged 751-754. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 6 Glossary ANSI A300: American National Standards Institute (ANSI) standards for tree care codominant stems: stems or branches of nearly equal diameter, often weakly attached (Matheny et al. 1998) crown: the aboveground portions of a tree (Lilly 2001) DBH or DSH: diameter at breast or standard height; the diameter of the trunk measured 54 inches (4.5 feet) above grade (Council of Tree and Landscape Appraisers 2019) deciduous: tree or other plant that loses its leaves sometime during the year and stays leafless generally during the cold season (Lilly 2001) evergreen: tree or plant that keeps its needles or leaves year round; this means for more than one growing season (Lilly 2001) ISA: International Society of Arboriculture level(s) of assessment: categorization of the breadth and depth of analysis used in an assessment (ISA 2013) owner/manager: the person or entity responsible for tree management or the controlling authority that regulates tree management (ISA 2013) regulated tree: A tree required by municipal code to be identified in an arborist report. soil structure: the arrangement of soil particles (Lilly 2001) structural defects: flaws, decay, or other faults in the trunk, branches, or root collar of a tree, which may lead to failure (Lilly 2001) Visual Tree Assessment (VTA): method of evaluating structural defects and stability in trees by noting the pattern of growth (Mattheck & Breloer 1994) Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 7 References Accredited Standards Committee A300 (ASC 300). ANSI A300 (Part 1) Tree, Shrub, and Other Woody Plant Management – Standard Practices (Pruning). Londonderry: Tree Care Industry Association, 2017. Council of Tree and Landscape Appraisers, Guide for Plant Appraisal, 10th Edition Second Printing. Atlanta, GA: The International Society of Arboriculture (ISA), 2019. Dunster, Julian A., E. Thomas Smiley, Nelda Matheny, and Sharon Lilly. Tree Risk Assessment Manual. Champaign, Illinois: International Society of Arboriculture, 2013. E. Smiley, N. Matheny, S. Lilly. Best Management Practices: TREE RISK ASSESSMENT. ISA 2011. Lilly, Sharon. Arborists’ Certification Study Guide. Champaign, IL: The International Society of Arboriculture, 2001. Matheny, Nelda and James R. Clark. Trees and Development: A Technical Guide to Preservation of Trees During Land Development. Champaign, IL: International Society of Arboriculture, 1998. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 8 Assumptions & Limiting Conditions 1 Consultant assumes that the site and its use do not violate, and is in compliance with, all applicable codes, ordinances, statutes or regulations. 2 The consultant may provide a report or recommendation based on published municipal regulations. The consultant assumes that the municipal regulations published on the date of the report are current municipal regulations and assumes no obligation related to unpublished city regulation information. 3 Any report by the consultant and any values expressed therein represent the opinion of the consultant, and the consultant’s fee is in no way contingent upon the reporting of a specific value, a stipulated result, the occurrence of a subsequent event, or upon any finding to be reported. 4 All photographs included in this report were taken by Tree Solutions, Inc. during the documented site visit, unless otherwise noted. Sketches, drawings and photographs (included in, and attached to, this report) are intended as visual aids and are not necessarily to scale. They should not be construed as engineering drawings, architectural reports or surveys. The reproduction of any information generated by architects, engineers or other consultants and any sketches, drawings or photographs is for the express purpose of coordination and ease of reference only. Inclusion of such information on any drawings or other documents does not constitute a representation by the consultant as to the sufficiency or accuracy of the information. 5 Unless otherwise agreed, (1) information contained in any report by consultant covers only the items 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, climbing, or coring. 6 These findings are based on the observations and opinions of the authoring arborist, and do not provide guarantees regarding the future performance, health, vigor, structural stability or safety of the plants described and assessed. 7 Measurements are subject to typical margins of error, considering the oval or asymmetrical cross-section of most trunks and canopies. 8 Tree Solutions did not review any reports or perform any tests related to the soil located on the subject property unless outlined in the scope of services. Tree Solutions staff are not and do not claim to be soils experts. An independent inventory and evaluation of the site’s soil should be obtained by a qualified professional if an additional understanding of the site’s characteristics is needed to make an informed decision. 9 Our assessments are made in conformity with acceptable evaluation/diagnostic reporting techniques and procedures, as recommended by the International Society of Arboriculture. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 9 Methods Measuring I measured the diameter of each tree at 54 inches above grade, diameter at standard height (DSH). If a tree had multiple stems, I measured each stem individually at standard height and determined a single- stem equivalent diameter by using the method outlined in the Guide for Plant Appraisal, 10th Edition Second Printing published by the Council of Tree and Landscape Appraisers. A tree is regulated based on this single-stem equivalent diameter value. Because this value is calculated in the office following field work, some trees in our data set may have diameters smaller than 6 inches. These trees are included in the tree table for informational purposes only and not factored into tree totals discussed in this report. Tagging I tagged each tree with a circular aluminum tag at eye level. I assigned each tree a numerical identifier on our map and in our tree table, corresponding to this tree tag. I used alphabetical identifiers for trees off-site. Evaluating I evaluated tree health and structure utilizing visual tree assessment (VTA) methods. The basis behind VTA is the identification of symptoms, which the tree produces in reaction to a weak spot or area of mechanical stress. A tree reacts to mechanical and physiological stresses by growing more vigorously to re-enforce weak areas, while depriving less stressed parts. An understanding of the uniform stress allows the arborist to make informed judgments about the condition of a tree. Rating When rating tree health, I took into consideration crown indicators such as foliar density, size, color, stem and shoot extensions. When rating tree structure, I evaluated the tree for form and structural defects, including past damage and decay. Tree Solutions has adapted our ratings based on the Purdue University Extension formula values for health condition (Purdue University Extension bulletin FNR-473- W - Tree Appraisal). These values are a general representation used to assist arborists in assigning ratings. Health Excellent - Perfect specimen with excellent form and vigor, well-balanced crown. Normal to exceeding shoot length on new growth. Leaf size and color normal. Trunk is sound and solid. Root zone undisturbed. No apparent pest problems. Long safe useful life expectancy for the species. Good - Imperfect canopy density in few parts of the tree, up to 10% of the canopy. Normal to less than ¾ typical growth rate of shoots and minor deficiency in typical leaf development. Few pest issues or damage, and if they exist they are controllable or tree is reacting appropriately. Normal branch and stem development with healthy growth. Safe useful life expectancy typical for the species. Fair - Crown decline and dieback up to 30% of the canopy. Leaf color is somewhat chlorotic/necrotic with smaller leaves and “off” coloration. Shoot extensions indicate some stunting and stressed growing conditions. Stress cone crop clearly visible. Obvious signs of pest problems contributing to lesser condition, control might be possible. Some decay areas found in main stem and branches. Below average safe useful life expectancy Poor - Lacking full crown, more than 50% decline and dieback, especially affecting larger branches. Stunting of shoots is obvious with little evidence of growth on smaller stems. Leaf size and color Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 10 reveals overall stress in the plant. Insect or disease infestation may be severe and uncontrollable. Extensive decay or hollows in branches and trunk. Short safe useful life expectancy. Structure Excellent - Root plate undisturbed and clear of any obstructions. Trunk flare has normal development. No visible trunk defects or cavities. Branch spacing/structure and attachments are free of any defects. Good - Root plate appears normal, with only minor damage. Possible signs of root dysfunction around trunk flare. Minor trunk defects from previous injury, with good closure and less than 25% of bark section missing. Good branch habit; minor dieback with some signs of previous pruning. Codominant stem formation may be present, requiring minor corrections. Fair - Root plate reveals previous damage or disturbance. Dysfunctional roots may be visible around the main stem. Evidence of trunk damage or cavities, with decay or defects present and less than 30% of bark sections missing on trunk. Co-dominant stems are present. Branching habit and attachments indicate poor pruning or damage, which requires moderate corrections. Poor - Root plate disturbance and defects indicate major damage, with girdling roots around the trunk flare. Trunk reveals more than 50% of bark section missing. Branch structure has poor attachments, with several structurally important branches dead or broken. Canopy reveals signs of damage or previous topping or lion-tailing, with major corrective action required. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 11 Tree Protection Specifications The following is a list of protection measures that must be employed before, during and after construction to ensure the long-term viability of retained trees. 1. Project Arborist: The project arborists shall at minimum have an International Society of Arboriculture (ISA) Certification and ISA Tree Risk Assessment Qualification. 2. Tree Protection Zone (TPZ): The city of Renton requires a tree protection zone (TPZ) consisting of the dripline. In some cases, the TPZ may extend outside tree protection fencing. Work within the TPZ must be approved and monitored by the project arborist. 3. Tree Protection Fencing: Tree protection shall consist of 6-foot chain-link fencing installed at the TPZ as approved by the project arborist. Fence posts shall be anchored into the ground or bolted to existing hardscape surfaces. a. Where trees are being retained as a group the fencing shall encompass the entire area including all landscape beds or lawn areas associated with the grove. b. Per arborist approval, TPZ fencing may be placed at the edge of existing hardscape within the TPZ to allow for staging and traffic. c. Where work is planned within the TPZ, install fencing at edge of TPZ and move to limits of disturbance at the time that the work within the TPZ is planned to occur. This ensures that work within the TPZ is completed to specification. d. Where trees are protected at the edge of the project boundary, construction limits fencing shall be incorporated as the boundary of tree protection fencing. 4. Access Beyond Tree Protection Fencing: In areas where work such as installation of utilities is required within the TPZ, a locking gate will be installed in the fencing to facilitate access. The project manager or project arborist shall be present when tree protection areas are accessed. 5. Tree Protection Signage: Tree protection signage shall be affixed to fencing every 20 feet. Signage shall be fluorescent, at least 2’ x 2’ in size, with 3” tall text. Signage will note: “Tree Protection Area – Do Not Enter: Entry into the tree protection area is prohibited unless authorized by the project manager.” Signage shall include the contact information for the project manager and instructions for gaining access to the area. 6. Filter / Silt Fencing: Filter / silt fencing within the TPZ of retained trees shall be installed in a manner that does not sever roots. Install so that filter / silt fencing sits on the ground and is weighed in place by sandbags or gravel. Do not trench to insert filter / silt fencing into the ground. 7. Monitoring: The project arborist shall monitor all ground disturbance at the edge of or within the TPZ, including where the TPZ extends beyond the tree protection fencing. 8. Soil Protection: No parking, foot traffic, materials storage, or dumping (including excavated soils) are allowed within the TPZ. Heavy machinery shall remain outside of the TPZ. Access to the tree protection area will be granted under the supervision of the project arborist. If project arborist allows, heavy machinery can enter the area if soils are protected from the load. Acceptable methods of soil protection include applying 3/4-inch plywood over 4 to 6 inches of wood chip mulch or use of AlturnaMats® (or equivalent product approved by the project arborist). Retain existing paved surfaces within or at the edge of the TPZ for as long as possible. 9. Soil Remediation: Soil compacted within the TPZ of retained trees shall be remediated using pneumatic air excavation according to a specification produced by the project arborist. 10. Canopy Protection: Where fencing is installed at the limits of disturbance within the TPZ, canopy management (pruning or tying back) shall be conducted to ensure that vehicular traffic does not damage canopy parts. Exhaust from machinery shall be located five feet outside the dripline of retained trees. No exhaust shall come in contact with foliage for prolonged periods of time. Arborist Report Kimley-Horn: 17803 108th Ave SE 7/12/2024 Tree Solutions Inc., Consulting Arborists Page 12 11. Duff/Mulch: Apply 6 inches of arborist wood chip mulch or hog fuel over bare soil within the TPZ to prevent compaction and evaporation. TPZ shall be free of invasive weeds to facilitate mulch application. Keep mulch 1 foot away from the base of trees and 6 inches from retained understory vegetation. Retain and protect as much of the existing duff and understory vegetation as possible. 12. Excavation: Excavation done at the edge of or within the TPZ shall use alternative methods such as pneumatic air excavation or hand digging. If heavy machinery is used, use flat front buckets with the project arborist spotting for roots. When roots are encountered, stop excavation and cleanly sever roots. The project arborist shall monitor all excavation done within the TPZ. 13. Fill: Limit fill to 1 foot of uncompacted well-draining soil, within the TPZ of retained trees. In areas where additional fill is required, consult with the project arborist. Fill must be kept at least 1 foot from the trunks of trees. 14. Root Pruning: Limit root pruning to the extent possible. All roots shall be pruned with a sharp saw making clean cuts. Do not fracture or break roots with excavation equipment. 15. Root Moisture: Root cuts and exposed roots shall be immediately covered with soil, mulch, or clear polyethylene sheeting and kept moist. Water to maintain moist condition until the area is back filled. Do not allow exposed roots to dry out before replacing permanent back fill. 16. Hardscape Removal: Retain hardscape surfaces for as long as practical. Remove hardscape in a manner that does not require machinery to traverse newly exposed soil within the TPZ. Where equipment must traverse the newly exposed soil, apply soil protection as described in section 8. Replace fencing at edge of TPZ if soil exposed by hardscape removal will remain for any period of time. 17. Tree Removal: All trees to be removed that are located within the TPZ of retained trees shall not be ripped, pulled, or pushed over. The tree should be cut to the base and the stump either left or ground out. A flat front bucket can also be used to sever roots around all sides of the stump, or the roots can be exposed using hydro or air excavation and then cut before removing the stump. 18. Irrigation: Retained trees with soil disturbance within the TPZ will require supplemental water from June through September. Acceptable methods of irrigation include drip, sprinkler, or watering truck. Trees shall be watered three times per month during this time. 19. Pruning: Pruning required for construction and safety clearance shall be done with a pruning specification provided by the project arborist in accordance with American National Standards Institute ANSI-A300 2017 Standard Practices for Pruning. Pruning shall be conducted or monitored by an arborist with an ISA Certification. 20. Plan Updates: All plan updates or field modification that result in impacts within the TPZ or change the retained status of trees shall be reviewed by the senior project manager and project arborist prior to conducting the work. 21. Materials: Contractor shall have the following materials onsite and available for use during work in the TPZ: • Sharp and clean bypass hand pruners • Sharp and clean bypass loppers • Sharp hand-held root saw • Reciprocating saw with new blades • Shovels • Trowels • Clear polyethylene sheeting • Burlap • Water Table of Trees 17803 108th Ave SE, Renton WA Arborist: KT, JW Date of Inventory: 06/11/2024 Table Prepared: 06/18/2024 DSH (Diameter at Standard Height) is measured 4.5 feet above grade, or as specified in the Guide for Plant Appraisal, 10th Edition , published by the Council of Tree and Landscape Appraisers. DSH for multi-stem trees are noted as a single stem equivalent, which is calculated using the method defined in the Guide for Plant Appraisal, 10th Edition . Letters are used to identify trees on neighboring property with overhanging canopies. Dripline is measured from the center of the tree to the outermost extent of the canopy. Tree ID Scientific Name Common Name DSH (inches) DSH Multistem Health Condition Structural Condition Average Dripline Radius (feet) Municiapal classification (Significant or landmark) Tree Credits Proposed Action Notes 716 Acer rubrum Red maple 6.0 Excellent Good 8 Significant 4 Surface roots, some damage 717 Acer rubrum Red maple 6.3 Excellent Good 8 Significant 4 Surface roots, some damage 718 Acer rubrum Red maple 7.5 Excellent Good 7 Significant 4 Surface roots, some damage 719 Acer rubrum Red maple 6.5 Fair Poor 6 Significant 4 Severe girdling roots, dead leaders in upper crown 720 Acer rubrum Red maple 6.8 Good Good 11 Significant 4 Leaves a bit stunted 721 Acer rubrum Red maple 7.0 Good Good 12 Significant 4 Leaves a bit stunted 722 Acer rubrum Red maple 12.5 Fair Fair 19 Significant 6 Sparse, surface and girdling roots 723 Acer rubrum Red maple 13.0 Fair Fair 19 Significant 6 Sparse to north, girdling and fused root plate with wounding, surface roots 724 Acer rubrum Red maple 15.4 Good Fair 23 Significant 6 Surface roots, canopy health looks great 725 Acer rubrum Red maple 10.4 Good Fair 22 Significant 5 Surface and girdling roots, limited soil volume 726 Acer rubrum Red maple 12.9 Good Fair 23 Significant 6 Surface and girdling roots, limited soil volume 727 Acer rubrum Red maple 9.6 Good Good 15 Significant 4 728 Acer rubrum Red maple 6.1 Fair Fair 14 Significant 4 729 Pinus nigra Austrian black pine 14.0 Good Good 18 Significant 6 Some tip dieback, part of grove 730 Pinus nigra Austrian black pine 12.0 Good Good 16 Significant 6 A bit suppressed, codominant leaders at 11 feet. 731 Acer rubrum Red maple 6.0 Good Good 9 Significant 4 A bit suppressed 732 Pinus nigra Austrian black pine 14.5 Good Good 17 Significant 6 Dominant in grove, ivy on stem 733 Pinus nigra Austrian black pine 16.3 Good Good 17 Significant 7 A bit sparse, codominant leaders, edge tree in grove 734 Pinus nigra Austrian black pine 12.5 Good Good 16 Significant 6 Suppressed top 735 Pinus nigra Austrian black pine 15.5 Good Good 16 Significant 6 736 Pinus nigra Austrian black pine 14.5 Good Good 16 Significant 6 737 Pinus nigra Austrian black pine 16.0 Good Good 16 Significant 7 738 Pinus nigra Austrian black pine 16.7 Good Good 16 Significant 7 739 Pseudotsuga menziesii Douglas-fir 8.0 Excellent Good 11 Significant 4 Failed pine stems of mugo or Austrian black pines on trunk, not tagged, estimated due to access, pine is alive but not of size or form for inventory 740 Acer rubrum Red maple 12.3 Excellent Good 24 Significant 6 Limited soil volume 741 Acer rubrum Red maple 8.2 Good Good 14 Significant 4 Tree Solutions, Inc. 2940 Westlake Ave. N #200 Seattle, WA 98109 Page 1 of 2 www.treesolutions.net 206-528-4670 Table of Trees 17803 108th Ave SE, Renton WA Arborist: KT, JW Date of Inventory: 06/11/2024 Table Prepared: 06/18/2024 Tree ID Scientific Name Common Name DSH (inches) DSH Multistem Health Condition Structural Condition Average Dripline Radius (feet) Municiapal classification (Significant or landmark) Tree Credits Proposed Action Notes 742 Acer rubrum Red maple 13.0 Fair Fair 21 Significant 6 Poorly pruned, kinked branches, sparse canopy, likely shared with right of way, size estimated 743 Pinus sylvestris Scot’s pine 14.5 Good Good 17 Significant 6 744 Pinus sylvestris Scot’s pine 12.8 6, 7.2, 4.3, 4.8, 5.8 Excellent Good 13 Significant 6 Very healthy dense canopy 745 Pinus nigra Austrian black pine 15.0 Good Good 17 Significant 6 Ivy on stem and into crown 746 Pinus nigra Austrian black pine 18.0 Good Good 18 Significant 7 Ivy on stem and into crown, estimated due to heavy ivy 747 Pinus nigra Austrian black pine 15.0 Good Good 13 Significant 6 Ivy on stem and into crown, estimated due to heavy ivy 748 Acer macrophyllum Bigleaf maple 20.6 12, 12, 10, 6 Good Fair 21 Significant 8 Heavy mature ivy growing up into crown, DSH estimated due to ivy, dieback in crown 749 Pseudotsuga menziesii Douglas-fir 16.4 Excellent Excellent 19 Significant 7 Swept base 750 Pseudotsuga menziesii Douglas-fir 13.5 Good Good 17 Significant 6 Slightly sparse 751 Pseudotsuga menziesii Douglas-fir 17.0 Excellent Excellent 19 Significant 7 752 Pseudotsuga menziesii Douglas-fir 18.7 Excellent Good 20 Significant 7 Kink in stem lost top 753 Pseudotsuga menziesii Douglas-fir 16.8 Good Good 18 Significant 7 Slightly sparse 754 Pseudotsuga menziesii Douglas-fir 21.0 Excellent Excellent 21 Significant 8 A Pinus nigra Austrian black pine 19.2 Good Good 21 Significant Narrow codominant union at 15 feet, one of the leaders is more dominant, lifting pavement around tree may be caused by roots, on neighboring property B, 2471 Liquidambar styraciflua Sweetgum 15.3 Good Fair 19 ROW tree Very limited root volume at edge of storm retention pond, surface roots running along sidewalk C, 2472 Liquidambar styraciflua Sweetgum 15.3 Fair Fair 22 ROW tree Very limited root volume at edge of storm retention, surface roots, sparse canopy D, 2473 Liquidambar styraciflua Sweetgum 14.3 Good Good 21 ROW tree Dense canopy, less surface rooting, much larger soil volume, ROW tree E Liquidambar styraciflua Sweetgum 11.0 Fair Poor Good 15 ROW tree Sparce canopy F Liquidambar styraciflua Sweetgum 10.0 Good Fair 15 ROW tree Narrow union at 5 feet, girdling roots G Acer rubrum Red maple 14.5 Good Fair 18 ROW tree Anthracnose on leaves, kinked branches, large wound on stem, topped regrew crown H Acer rubrum Red maple 12.3 Fair Fair 16 ROW tree Anthracnose on leaves, topped and regrew crown I Acer rubrum Red maple 12.0 Fair Fair 16 ROW tree Offsite Trees Tree Solutions, Inc. 2940 Westlake Ave. N #200 Seattle, WA 98109 Page 2 of 2 www.treesolutions.net 206-528-4670 718 A 717 716 720 721 B C D E F 722 723 724725726 729 730731 732 733 734 735 736 737 738 739 740 741 742 743 G H 744 745746 747748749750 751 752 753 754 <6" Tree Site Map June 11, 2024 Tree Solutions Inc. Arborist: Katherine Taylor & John Wells 206-528-4670 Tree inventory took place on June 11, 2024 and included all trees 6-inches diameter and greater. Trees with canopies overhanging the property line were also assessed. Trees located with a purple dot are located approximately and must be surveyed to determine their exact locations. Tree driplines and other specifics are listed in the Table of Trees produced by Tree Solutions Inc. and should be added to all drawings and designs relating to tree protection.