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HomeMy WebLinkAbout21a - Carmax #7252 Tree Protection PlanFORESTRY 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 -Tree Protection Plan- CARMAX STORE #7252 3751 East Valley Road Renton, WA Prepared for: Carmax Prepared by: Washington Forestry Consultants, Inc. Date: April 23, 2015 Introduction The project proponent is planning to convert an existing cinema into a new Carmax location on 12.28 acres at 3751 E Valley Road in Renton, WA. The proponent has retained WFCI to: • Evaluate and inventory all trees on the site pursuant to the requirements of the 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. Additionally, all landscape trees that appeared to have been planted within the past ten years were tallied. Trees within the wetland/wooded area were numbered at their base with blue paint. All other trees were not marked. 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. Page 2 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 2 Site Description The site has an existing movie theatre, with associated parking lot surrounding the building. There is a wooded/wetland area behind the theatre mostly stocked with black cottonwood trees. Being previously developed, there are many planted landscape trees on site. Overall, tree quality is poor to good. The trees on site range between approximately 5 and 30 years old. The site is relatively flat, with the exception of the wetland area that has depressions with standing water. Soil Description According to the USDA Web Soil Survey there are two soil types on this parcel (see soils map below). One is the Snohomish silt loam (So), a deep, poorly drained soil. It is formed in flood plains, with an alluvium parent material. The available water capacity for plants is high. The water table occurs at a depth of over 80 inches. The potential for windthrow of trees is moderate under normal conditions. The other soil type on site is the Tukwila muck (Tu), very deep, very poorly drained soil. It is formed in flood plains, with herbaceous organic parent material. Ponding is frequent, and permeability is moderate. The available water capacity for plants is very high. The water table occurs at a depth of over 80 inches. The potential for windthrow of trees is moderate because of the high water table. So Tu Selected Soil Description Area Approx. Parcel Boundary Soil Type Delineation Page 3 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 3 Tree Conditions The project area consists of two forest cover types, a wooded/wetland area and the landscaped (parking lot) area. An inventory of the trees was conducted to determine the composition and health of the forest. Type I. -- The majority of the trees in this type are black cottonwood (Populus trichocarpa). There is also one quaking aspen (Populus tremuloides), one Scouler's willow (Salix scouleriana) over 6 inches DBH, and one Oregon white ash (Fraxinus latifolia). Twenty-six of the trees numbered in this area fall within the mapped wetland and buffer shown on the site plan. These 26 trees are not included as significant trees for tree retention calculations. There were also four (4) cottonwood trees less than 8 inches DBH that were numbered by WFCI. These also do not count as significant trees according to the Renton Municipal Code. Therefore, a total of 21 significant trees exist in this type, ranging in diameter from 8 to 20 inches DBH. Twenty (20) of the trees were classified as sound, healthy, long-term trees in the dominant and co-dominant crown class. The other tree is not a long-term tree due to a structural defect (hazardous). However, this tree could be saved as long as no buildings or parking spaces are placed within reach. Table 1. Summary of Significant Trees in Type I. Species DBH Range (in.) Total # of Trees # of Healthy Trees # of Trees in Poor Health* Species Composition of Stand Black Cottonwood 8-20 21 20 1 100% *Dead, diseased, or hazardous. Type II. – There are 178 planted landscape trees in this type. Based on their size, 125 of these appear to have been planted within the last ten years. The Renton Municipal Code states that any tree planted within the last ten years qualifies as a significant tree. However, upon searching back at historical aerial photos on Google Earth® it appears that these trees existed as far back as 2002, thus do not fall within the above stated rule. Of the other 53 surveyed trees, forty-nine (49) meet the minimum 6 inch DBH significant tree definition (for all trees other than black cottonwood and red alder). The other 4 trees are smaller than 6 inches DBH. Of the 49 significant trees, four (4) are not long-term trees due to structural defects or poor health (diseased, dying, or hazardous). The species in this type include Callery pear (Pyrus calleryana), a honey locust cultivar (Gleditsia triacanthos), western red cedar (Thuja plicata), arborvitae (Thuja spp.), Deodar cedar (Cedrus deodara), Japanese maple cultivars (Acer palmatum), red maple cultivars (Acer rubrum), and red alder (Alnus rubra). Page 4 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 4 Table 2. Summary of 6"+ Trees in Type II. Species DBH Range (in.) Total # of Trees # of Healthy Trees # of Trees in Poor Health* Species Composition of Stand Callery Pear 6-11 20 18 2 41% Red Maple 6-12 25 25 0 51% Red Alder 9 2 0 2 4% Honeylocust 6 1 1 0 2% Deodar Cedar 14 1 1 0 2% 6-14 49 45 4 100% *Dead, diseased, or hazardous. Table 3. Summary of All Other Landscape Trees* in Type II. Species DBH Range (in.) Total # of Trees Health Range Species Composition of Stand Callery Pear 2-5 49 Poor - Good 39% Honeylocust 1/2-4 46 Poor - Good 37% Japanese Maple 2-3 15 Fair-Good 12% Arborvitae 2-5 9 Good 7% Red Maple 2-5 6 Fair-Good 5% 1/2-5 125 Poor-Good 100% *Historical photos shows these trees to be more than 10 years old, thus are not considered significant trees. Off-Site Impacts Tree removal on this parcel will not impact trees on any surrounding parcels. Discussion Potential for Tree Retention All twenty-one (21) of the significant trees in Type I are available for retention. Forty-five (45) trees are available for retention in Type II when only trees health is taken into consideration. However, from the site plan provided, it appears that all of the landscape trees surrounding the existing building, as well as the red maple trees along East Valley Road and the trees in the main parking lot area are planned for removal. This amounts to 41 significant trees over 6 inches DBH. The proposed ‘save’ trees are illustrated on the aerial photo in Attachment #1. A detailed list of all trees (over 6 inches DBH) by species, DBH, crown position, condition, root protection zone (RPZ), save/remove potential, and retention availability is provided in Attachment #2. Page 5 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 5 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 an 'industrial' zone. The following is a summary of the required and planned tree retention: Total Project Area 12.28 acres Critical Areas and Buffers ~0.57 acres Buildable Area 11.81 acres Total Number of Significant Trees on Site based on Diameter 80 trees Trees Excluded from Retention Calculation: Trees that are Dead Diseased or Dangerous 5 trees Trees in Critical Areas and Buffers (10) trees Number of Healthy, Significant Trees in Buildable Area: 65 trees Required Tree Retention: 10% of healthy significant trees in buildable area: 7 trees Planned Tree Retention 33 trees Excess of Retention over the Minimum Requirement 26 trees There are 80 healthy significant trees in the buildable area of the site. At least 7 (fractions of 0.5 or higher round up to nearest whole tree) of these trees need to be retained to meet the 10% requirement of the City of Renton Code. The proposed plan retains 33 trees outside of the critical areas and buffers, which exceeds the minimum retention requirement. This does not include any trees less than 6 inches DBH that maybe be saved as well. No tree replacement will be required. 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. Page 6 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 6 Recommendations Tree Protection Measures Trees to be saved must be protected during construction by a six foot high chain link fencing (Attachment #7), located at the edge of the critical root zone (CRZ). Placards shall be placed on the fencing every 50 feet indicating the words, "NO TRESPASSING - Protected Trees". The individual CRZ are a radius of one foot for each one inch of DBH (6 feet minimum), unless otherwise delineated by WFCI (see Attachment #2). Tree protection fences should be placed around the edge of the critical root zone (CRZ). The fence should be erected after logging but prior to the start of clearing. The fences should be maintained until the start of the landscape installation. 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 individual trees to be saved near or within developed areas 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. All pruning should be done according to the ANSI A300 standards for proper pruning, and be completed by an International Society of Arboriculture Certified Arborist®, or be supervised by a Certified Arborist®. Conclusions and Timeline for Activity 1. 33 trees are proposed to be retained on the site in the buildable area. 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. Page 7 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 7 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 7 of the 65 significant trees be retained on the buildable area of the site. This plan retains 33 trees, which meets the minimum tree retention requirement. Please give me a call if you have further questions. Respectfully submitted, Washington Forestry Consultants, Inc. Galen M. Wright, ASCA, ACF ISA Board Certified Master Arborist PN-0129 BU Certified Forester No. 44 ISA Tree Risk Assessor attachments Page 8 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 8 Attachment #1: Aerial Photo of Carmax Site with Forest Cover Types (King County Parcel Viewer 2.0) Approximate Site Boundary Approximate Wetland Boundary Wooded Area Save Trees Boundary Landscape Area Planned Save Trees Landscape Area Planned Removals X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Page 9 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 9 Attachment #2: Inventory list of project area trees A detailed list of all trees by species, DBH, crown position, condition, root protection zone (RPZ), tree health status, and save/remove potential: Tree # Species Location Area DBH (in) Crown Class Condition Critical Root Zone (ft) Significant according to size? Tree Condi- tion – Potential to save? Site Plan Save/ Remove Notes 1 Cottonwood wetland 13 Co-Dominant Dead No No Save water's edge 2 Quaking Aspen wetland 6 Dominant Fair 6 Yes Yes Save 3 OR White Ash wetland 6 Dominant Fair 6 Yes Yes Save 4 Cottonwood wetland 12 Co-Dominant Good 12 Yes Yes Save water's edge 5 Cottonwood wetland 7 Co-Dominant Fair 7 No Yes Save water's edge 6 Cottonwood wetland 9 Co-Dominant Fair 9 Yes Yes Save 7 Cottonwood wetland 6 Intermediate Fair 6 No Yes Save 8 Cottonwood wetland 6 Intermediate Fair 6 No Yes Save 9 Cottonwood wetland 8,8 Co-Dominant Fair 8 Yes Yes Save 10 Scouler’s Willow wetland 7 Dominant Very-Poor 7 No No Save 11 Cottonwood wetland 9 Co-Dominant Fair 9 Yes Yes Save 12 Cottonwood wooded 12 Co-Dominant Fair 12 Yes Yes Save shares trunk with #26 13 Cottonwood wetland 13 Dominant Good 13 Yes Yes Save 14 Cottonwood wetland 8 Co-Dominant Poor 8 No No Save Dying 15 Cottonwood wetland 7 Co-Dominant Very-Poor 7 No No Save Mostly dead 16 Cottonwood wetland 6 Co-Dominant Fair 6 No Yes Save 17 Cottonwood wetland 6 Co-Dominant Poor 6 No No Save 18 Cottonwood wetland 4 Co-Dominant Very-Poor 5 No No Save Not significant; main stem dead/rotten 19 Cottonwood wetland 7 Dominant Fair 7 No Yes Save 20 Cottonwood wetland 7 Co-Dominant Good 7 No Yes Save in water at edge 21 Cottonwood wetland 10 Co-Dominant Fair 10 Yes Yes Save 22 Cottonwood wetland 8,9 Co-Dominant Poor 9 No No Save Crown half dead 23 Cottonwood wetland 8 Co-Dominant Good 8 Yes Yes Save in water at edge 24 Cottonwood wetland 7 Intermediate Fair 7 No Yes Save 25 Cottonwood wetland 7 Co-Dominant Fair 7 No Yes Save 26 Cottonwood wooded 11 Co-Dominant Fair 12 Yes Yes Save shares trunk w/ #12 27* Cottonwood wooded 16 Dominant Good 16 Yes Yes Save Surrounded by water 28 Cottonwood wooded 9 Co-Dominant Good 10 Yes Yes Save Page 10 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 10 Tree # Species Location Area DBH (in) Crown Class Condition Critical Root Zone (ft) Significant according to size? Tree Condi- tion – Potential to save? Site Plan Save/ Remove Notes 29 Cottonwood wooded 9 Co-Dominant Fair 10 Yes Yes Save 30 Cottonwood wooded 10 Co-Dominant Fair 10 Yes Yes Save 31 Cottonwood wooded 8 Co-Dominant Good 10 Yes Yes Save 32 Cottonwood wooded 11 Co-Dominant Good 10 Yes Yes Save 33 Cottonwood wooded 11 Co-Dominant Fair 10 Yes Yes Save water's edge/leaning 34 Cottonwood wooded 20 Dominant Fair 20 Yes Yes Save split at 6' 35 Cottonwood wooded 7 Co-Dominant Fair 7 No Yes Save 36 Cottonwood wooded 17 Co-Dominant Fair 20 Yes Yes Save thin looking crown 37 Cottonwood wooded 14 Co-Dominant Good 15 Yes Yes Save 38 Cottonwood wooded 14 Co-Dominant Good 15 Yes Yes Save 39 Cottonwood wooded 14 Co-Dominant Poor 14 Yes Yes Save Sweep; no targets; 40 Cottonwood wooded 8 Co-Dominant Fair 10 Yes Yes Save 41 Cottonwood wooded 13 Dominant Fair 13 Yes Yes Save water's edge 42 Cottonwood wooded 8,8 Intermediate Fair 8 Yes Yes Save 43 Cottonwood wooded 12,14 Co-Dominant Fair 15 Yes Yes Save 44 Cottonwood wooded 6,16 Co-Dominant Fair 16 Yes Yes Save 45* Red Maple landscape 3 Dominant Fair 5 No Yes Save 46* Honeylocust landscape 6 Co-Dominant Fair 8 Yes Yes Remove 47* Callery Pear landscape 10 Dominant Good 10 Yes Yes Remove 48* Callery Pear landscape 9 Dominant Fair 9 Yes Yes Remove 49* Red Maple landscape 7 Dominant Fair 15 Yes Yes Save many surface roots 50* Red Maple landscape 8 Dominant Good 15 Yes Yes Save 51* Red Maple landscape 8 Dominant Fair 15 Yes Yes Save 52* Cedar landscape 4,4 Dominant Good 10 No Yes Save 53* Callery Pear landscape 9 Co-Dominant Good 10 Yes Yes Remove 54* Callery Pear landscape 9 Co-Dominant Good 10 Yes Yes Remove 55* Callery Pear landscape 9 Co-Dominant Good 10 Yes Yes Remove 56* Red Maple landscape 8 Dominant Fair 10 Yes Yes Save 57* Red Maple landscape 8 Dominant Fair 10 Yes Yes Save 58* Cedar landscape 5 Dominant Good 10 No Yes Save 59* Deodar Cedar landscape 14 Dominant Very-Good 15 Yes Yes Save 60* Red Maple landscape 7 Dominant Fair 10 Yes Yes Save 61* Red Maple landscape 8 Dominant Fair 10 Yes Yes Save 62* Red Maple landscape 6 Dominant Fair 10 Yes Yes Save 63* Red Maple landscape 12 Dominant Fair 15 Yes Yes Remove 64* Red Maple landscape 9 Dominant Fair 12 Yes Yes Remove 65* Red Maple landscape 7 Dominant Fair 10 Yes Yes Remove Page 11 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 11 Tree # Species Location Area DBH (in) Crown Class Condition Critical Root Zone (ft) Significant according to size? Tree Condi- tion – Potential to save? Site Plan Save/ Remove Notes 66* Red Maple landscape 10 Dominant Fair 12 Yes Yes Remove 67* Red Maple landscape 8 Dominant Fair 10 Yes Yes Remove 68* Red Maple landscape 9 Dominant Good 12 Yes Yes Remove 69* Red Maple landscape 10 Dominant Fair 12 Yes Yes Remove 70* Callery Pear landscape 6 Dominant Fair 10 Yes Yes Remove 71* Red Maple landscape 10 Dominant Fair 12 Yes Yes Remove 72* Red Maple landscape 10 Dominant Fair 12 Yes Yes Remove 73* Red Maple landscape 11 Dominant Fair 12 Yes Yes Remove 74* Red Alder landscape 3,7 Dominant Poor 10 Yes No Remove 75* Callery Pear landscape 10 Co-Dominant Fair 10 Yes Yes Remove 76* Callery Pear landscape 7 Co-Dominant Fair 10 Yes Yes Remove 77* Callery Pear landscape 9 Co-Dominant Fair 10 Yes Yes Remove 78* Callery Pear landscape 7 Dominant Good 12 Yes Yes Remove 79* Red Maple landscape 10 Dominant Good 12 Yes Yes Remove 80* Callery Pear landscape 7 Dominant Poor 12 Yes No Remove Thinning crown 81* Callery Pear landscape 7 Co-Dominant Fair 10 Yes Yes Remove 82* Callery Pear landscape 7 Co-Dominant Fair 10 Yes Yes Remove 83* Red Maple landscape 9 Dominant Fair 10 Yes Yes Remove 84* Red Maple landscape 9 Dominant Fair 10 Yes Yes Remove 85* Red Alder landscape 9 Dominant Poor 10 Yes No Remove 86* Red Maple landscape 9 Dominant Fair 10 Yes Yes Remove 87* Red Maple landscape 10 Dominant Good 15 Yes Yes Remove 88* Red Maple landscape 8 Dominant Fair 10 Yes Yes Remove 89* Callery Pear landscape 7 Dominant Fair 12 Yes Yes Remove 90* Callery Pear landscape 10 Dominant Good 12 Yes Yes Remove 91* Callery Pear landscape 10 Dominant Fair 12 Yes Yes Remove 92* Callery Pear landscape 11 Dominant Fair 12 Yes Yes Remove 93* Callery Pear landscape 8 Co-Dominant Fair 8 Yes Yes Remove 94* Callery Pear landscape 7 Co-Dominant Fair 8 Yes Yes Remove 95* Callery Pear landscape 5 Dominant Poor 10 No No Remove 96* Red Maple landscape 9 Dominant Good 10 Yes Yes Remove X1 Cottonwood wooded 8,4 Co-Dominant Fair 8 Yes Yes Save Water's edge X2 Cottonwood wooded 6 Co-Dominant Dead No No Save In Water X3 Cottonwood wetland 9 Dominant Fair 10 Yes Yes Save X4 Cottonwood wetland 6 Co-Dominant Fair 6 No Yes Save X5 Cottonwood wooded 6 Co-Dominant Fair 6 No Yes Save X6 Cottonwood wooded 9 Co-Dominant Fair 10 Yes Yes Save X7 Cottonwood wooded 7 Intermediate Fair 7 No Yes Save X8* Callery Pear landscape 6 Co-Dominant Poor 10 Yes No Remove *Not painted Page 12 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 12 Attachment #3: Individual Tree Rating Key for Tree 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 Page 13 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 13 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. Page 14 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 14 Attachment #4: Description of Tree Evaluation Methodology The evaluation of the tree condition on this site included the visual assessment of: 1. Live-crown ratio, 2. Lateral and terminal branch growth rates, 3. Presence of dieback in minor and major scaffold branches and twigs, 4. Foliage color, 5. Stem soundness and other structural defects, 6. Visual root collar examination, 7. Presence of insect or disease problems. 8. Windfirmness if tree removal will expose this tree to failure. In cases where signs of internal defect or disease were suspected, a core sample was taken to look for stain, decay, and diameter growth rates. Also, root collars were exposed to look for the presence of root disease. In all cases, the overall appearance of the tree was considered relative to its ability to add value to either an individual lot or the entire subdivision. Also, the scale of the tree and its proximity to both proposed and existing houses was considered. Lastly, the potential for incorporation into the project design is evaluated, as well as potential site plan modifications that may allow otherwise removed tree(s) to be both saved and protected in the development. Trees that are preserved in a development must be carefully selected to make sure that they can survive construction impacts, adapt to a new environment, and perform well in the landscape. Healthy, vigorous trees are better able to tolerate impacts such as root injury, changes in soils moisture regimes, and soil compaction than are low vigor trees. Structural characteristics are also important in assessing suitability. Trees with significant decay and other structural defects that cannot be treated are likely to fail. Such trees should not be preserved in areas where damage to people or property could occur. Trees that have developed in a forest stand are adapted to the close, dense conditions found in such stands. When surrounding trees are removed during clearing and grading, the remaining trees are exposed to extremes in wind, temperature, solar radiation, which causes sunscald, and other influences. Young, vigorous trees with well-developed crowns are best able to adapt to these changing site conditions. Page 15 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 15 Attachment #5: 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). Caliper: In the City of Renton - Caliper is referring to diameter measurement at DBH. 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. Page 16 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 16 Attachment #6: Tree Protection Fence Detail Temporary Chain Link on Driven Posts Page 17 – Carmax Renton, Store Number 7252 -- Tree Protection Plan Washington Forestry Consultants, Inc. 17 Attachment #7: 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.