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HomeMy WebLinkAboutTR_Arborist Report_221206_v1 Greenforest Incorporated C o n s u l t i n g A r b o r i s t Greenforestinc@mindspring.com Tel. 206-723-0656 TO: Robert P. Wenzl Tuscany Construction, LLC Renton, WA 98059 REFERENCE: Poppy Court Arborist Report SITE ADDRESS: 805 Hoquiam Ave NE, Renton WA DATE: December 6, 2022 PREPARED BY: Favero Greenforest, ISA Certified Arborist # PN -0143A ISA Tree Risk Assessment Qualified ASCA Registered Consulting Arborist® #379 You contacted me and contracted my services as a consulting arborist. My assignment is to inventory and inspect trees at the above referenced site. The purpose of this report is to establish the condition of the significant trees to satisfy City of Renton permit submittal requirements. I received a topographic survey from Core Design. I visited the site 6/20/2022 and visually inspected the trees indicated on the survey, which are the subject of this report, and represent all regulated trees associated with the subject parcel. Summary The following table summarizes the tree quantities and categories inventoried in this report. Significant, Heritage, Landmark and Dangerous categories are defined by municipal code. Dead trees are excluded from this report. Significant Trees on Site 19 Landmark Trees on Site 0 Dangerous Trees on Site 7 Total Subject Trees 26 Attributes for offsite or ROW trees are also included in the attached inventory. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 2 of 14 Greenforest Registered Consulting Arborist Limitations and Use of this Report This tree report establishes, via the most practical means available, the existing conditions of the trees on the subject property. Ratings for health and structure, as well as any recommendations are valid only through the development and construction process. This report is based solely on what is readily visible and observable, without any invasive means. There are several conditions that can affect a tree’s condition that may be pre-existing and unable to be ascertained with a visual-only analysis. No attempt was made to determine the presence of hidden or concealed conditions which may contribute to the risk or failure potential of trees on the site. These conditions include root and stem (trunk) rot, internal cracks, structural defects or construction damage to roots, which may be hidden beneath the soil. Additionally, construction and post-construction circumstances can cause a relatively rapid deterioration of a tree’s condition. IDENTIFICATION SCHEME Each tree was marked with 1” x 3.5” aluminum tag indicating tree number as listed on the attached inventory, and as shown on the attached exhibit. SPECIES AND SIZE OF EACH TREE I measured the trunk diameter (54” from grade) of each tree, and identified each tree by common name. TREE INSPECTION METHOD – TREE HEALTH, CONDITION AND VIABILITY I visually inspected each tree from the ground. I performed a Level 1 risk assessment.1 This is the standard assessment for populations of trees near specified targets, conducted in order to identify obvious defects or specified conditions such as a pre-development inventory. This is a limited visual assessment focuses on identifying trees with imminent and/or probable likelihood of failure, and/or other visible conditions that will affect tree retention. I recorded tree species and size (DBH). I estimated the average dripline of each tree. I rated the condition of each tree, both health and structure. A tree’s structure is distinct from its health. This inspection identifies what is visible with both. High-risk trees can appear healthy in that they can have a dense, green canopy. This may occur when there is sufficient sapwood or adventitious roots present to maintain tree health, but inadequate strength for structural support. 1 Companion publication to the ANSI A300 Part 9: Tree Shrub and Other woody Plant Management – Standard Practices, Tree Risk Assessment. 2011. ISA. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 3 of 14 Greenforest Registered Consulting Arborist Conversely, trees in poor health may or may not be structurally stable. For example, tree decline due to root disease is likely to cause the tree to be structurally unstable, while decline due to drought or insect attack may not. One way that tree health and structure are linked is that healthy trees are more capable of compensating for structural defects. A healthy tree can develop adaptive growth that adds strength to parts weakened by decay, cracks, and wounds. This report identifies unhealthy trees based on existing health conditions and tree structure, and specifies which trees are most suitable for preservation.2 No invasive procedures were performed on any trees. The results of this inspection are based on what was visible at the time of the inspection. The attached inventory summarizes my inspection results and provides the following information for each tree: Proposed Action – Indicates if tree is to be removed or retained. Tree Category as defined by municipal code. (TREE: A woody perennial usually having one dominant trunk, or, for certain species, a multi-stemmed trunk system, with a potential minimum height of ten feet (10') at maturity. Any trees listed on the Complete King County Weed List shall not qualify as a tree.) Dangerous: Any tree that has been certified, in a written report, as dead, terminally diseased, damaged, or otherwise dangerous to persons or property by a licensed landscape architect, or certified arborist. Landmark: A tree with a caliper of thirty inches (30") or greater. (Average multiple stems and report single integer) Significant: A tree with a caliper of at least six inches (6"), or an alder or cottonwood tree with a caliper of at least eight inches (8"). Trees qualified as dangerous shall not be considered significant. Trees planted within the most recent ten (10) years shall qualify as significant trees, regardless of the actual caliper. Tree number as shown on tag in the field, and on attached exhibit. DBH Stem diameter in inches measured 4.5 feet from the ground. Tree Species Common name. Dripline Average branch extension from the trunk as radius in feet. 2 Companion publication to the ANSI A300 Part 5: Tree Shrub and Other woody Plant Maintenance – Standard Practices, Managing Trees During Construction. 2008. ISA. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 4 of 14 Greenforest Registered Consulting Arborist Health and Structure ratings ‘1’ indicates good to excellent condition; no visible health- related problems or structural defects, ‘2’ indicates fair condition; minor visible problems or defects that may require attention if the tree is retained, and ‘3’ indicates poor condition; significant visible problems or defects and tree removal is recommended. Visible defects Obvious structural defects or diseases visible at time of inspection. Viability - a determination by the arborist whether the tree is viable for retention. Type indicates if tree is Deciduous (D), Evergreen (E), broadleaf (B) and coniferous (C) SUBJECT TREES The site has a single-family residence, and also various sheds/outbuildings parallel the west parcel boundary. Most onsite subject trees are native Doug-fir, planted as a hedgerow very near the west property line, with many trees having sheds constructed around their trunks. The firs have been topped in past, and all have multiple leaders. The trees at the north PL are stumps, really, brutally topped and with very few live branches. Other onsite trees include fruiting pear and walnut, and also blue spruce. Offsite and right-of-way trees are mostly Norway maples, with some flowering cherries and firs. TREE PROTECTION ZONE Tree Protection Zone (TPZ) is a defined area within and including an outer boundary, as determined by a Qualified Professional Arborist, in which certain activities are prohibited or restricted to prevent or minimize potential impacts from construction or development, applicable to individual trees or groups of tree trunks, roots and soil. The TPZ is variable depending on species, age and health of the tree, soil conditions and proposed construction; and it is malleable and may be modified depending on site conditions and proposed activities (which means it could be made larger). TPZ for this report is the shape of a square, and is most effective when used for perimeter trees. Frequently a portion of this area is offsite, or covering a parking area (where the soil and roots are protected by paving), or a street right-of-way, and sometimes the tree is not centered in this defined area. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 5 of 14 Greenforest Registered Consulting Arborist Encroachment closer to a tree for certain activities can be done while still preserving tree health and stability. This limit of disturbance (LOD, also listed in the attached inventory) establishes a minimum distance of proximity for a single side of the box-shaped TPZ. This allows for work and access closer to the tree on a single side, and expands the protected area an equivalent distance on the opposite side of the tree. (See diagram below.) TPZ – tree center in square, distance equal on 4 sides, measured from center of trunk. LOD – tree off center as close as LOD on one side only, measured from center of trunk, and 1.5 x LOD on two abutting sides. The LOD above are calculated for all the significant trees (and for trees on adjoining parcels with overhanging driplines) using rootplate3 and trunk diameter,4,5 Tree Fund research,6 and ISA Best Management Practices.7 They are listed in the attachment below as distance in feet from the trunk for the side of the tree to be impacted by construction, and are to be used to establish a TPZ for all retained trees. 3 Coder, Kim D. 2005. Tree Biomechanics Series. University of Georgia School of Forest Resources. 4 Smiley, E. Thomas, Ph. D. Assessing the Failure Potential of Tree Roots, Shade Tree Technical Report. Bartlett Tree Research Laboratories. 5 Fite, Kelby and E. Thomas Smiley. 2009. Managing Trees During construction; Part Two. Arborist News. ISA. 6 Andrew R. Benson, Andrew Koeser, Justin Morgenroth. Responses Of Mature Roadside Trees To Root Severance Treatments. 2019. Journal of Urban Forestry & Urban Greening. 7 Companion publication to the ANSI A300 Series, Part 5: Managing Trees During Construction. 2008. ISA. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 6 of 14 Greenforest Registered Consulting Arborist REASONS FOR AND IMPACT OF NECESSARY TREE REMOVAL Removal is recommended for 18 viable trees because of proposed site improvements. Tree 8230, a blue spruce, is a stand-alone tree and is removed for ROW improvements. Tree 8226 is a fir tree showing signs of root rot. Two walnuts, 8276 & 8277, have poor structure and are removed for site improvements. The above 4 trees are relatively small and short, and their loss will have no impact on any retained trees. Eight large firs along the west site boundary are proposed for removal because of site improvements. These trees are on the windward part of a hedgerow, and their trunks range from 18” to 22” DBH. The removal of 8 firs will have minor impact on the first that remain. All the trees are relatively short for their trunk size, and those that remain are tightly spaced, and offsite trees on the abutting parcel will continue to provide wind buffer. Removal of trees 8304 and 8305, south of the line of retained firs, should keep intact these stumps to avoid disruption of tree 8303’s rootplate. TREE DENSITY CALCULATIONS LOT NO. S. F. REQ'D TREE CREDITS REMAINING TREE CREDITS PROVIDED TREE CREDITS 1 11,478 8 16 0 2 8,036 5 45 0 TOTALS 13 61 0 TREE RETENTION CALCULATIONS TOTAL ONSITE SIGNIFICANT TREES 19 REQUIRED RETAINED TREES 19 X 30% = 6 RETAINED TREES 8 REQ'D REPLACMENT TREES 0 SUPPLEMENTAL TREES No supplemental trees are required on this project. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 7 of 14 Greenforest Registered Consulting Arborist ANALYSIS OF RETAINED TREES ACCORDING TO PRIORITY OF TREE RETENTION REQUIREMENTS (Specified in RMC 4-4-130H.1.b.) b. Priority of Tree Retention Requirements: Significant trees shall be retained in the following priority order: Priority One i. Landmark trees; ii. Significant trees that form a continuous canopy; iii. Significant trees on slopes greater than twenty percent (20%); iv. Significant trees adjacent to critical areas and their associated buffers; and v. Significant trees over 60' in height or greater than 18 inches caliper. Priority Two i. Healthy tree groupings whose associated undergrowth can be preserved; ii. Other significant native evergreen or deciduous trees; and iii. Other significant non-native trees. Priority Three Alders and cottonwoods shall be retained when all other trees have been evaluated for retention and are not able to be retained, unless the alders and/or cottonwoods are used as part of an approved enhancement project within a critical area or its buffer. TREE RETENTION AND LAND CLEARING REGULATIONS 4.4.130 §H.9. Protection Measures During Construction: Protection measures in this subsection shall apply for all trees that are to be retained. All of the following tree protection measures shall apply: a. Construction Storage Prohibited: The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. b. Fenced Protection Area Required: Prior to development activities, the applicant shall erect and maintain six-foot (6') high chain link temporary construction fencing around the drip lines of all retained trees or at a distance surrounding the tree equal to one and one- quarter feet (1.25') for every one inch (1") of trunk caliper, whichever is greater, or along the perimeter of a tree protection tract. Placards shall be placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees,” or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. c. Protection from Grade Changes: If the grade level adjoining to a tree to be retained is to be raised, the applicant shall construct a dry rock wall or rock well around the tree. The Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 8 of 14 Greenforest Registered Consulting Arborist diameter of this wall or well must be equal to the tree’s drip line. d. Impervious Surfaces Prohibited within the Drip Line: The applicant may not install impervious surface material within the area defined by the drip line of any tree to be retained. e. Restrictions on Grading within the Drip Lines of Retained Trees: The grade level around any tree to be retained may not be lowered within the greater of the following areas: (i) the area defined by the drip line of the tree, or (ii) an area around the tree equal to one and one-half feet (1-1/2') in diameter for each one inch (1") of tree caliper. A larger tree protection zone based on tree size, species, soil, or other conditions may be required. (Ord. 5676, 12-3-2012) f. Mulch Layer Required: All areas within the required fencing shall be covered completely and evenly with a minimum of three inches (3") of bark mulch prior to installation of the protective fencing. Exceptions may be approved if the mulch will adversely affect protected ground cover plants. (Ord. 5676, 12-3-2012) g. Monitoring Required during Construction: The applicant shall retain a certified arborist or licensed landscape architect to ensure trees are protected from development activities and/or to prune branches and roots, fertilize, and water as appropriate for any trees and ground cover that are to be retained. h. Alternative Protection: Alternative safeguards may be used if determined to provide equal or greater tree protection. (Ord. 5676, 12-3-2012) OTHER RECOMMENDATIONS Removal of sheds and lean-to structures on or near retained trees shall be performed by hand, and with care to prevent bark, branch and root injury, and soil compaction. Lumber that is nailed to tree trunks shall be cut small while still affixed to the tree, and the nails cut at the bark, rather than pulled from tree. The area inside TPF shall be covered in wood chip mulch, 3” minimum, prior to protection fence installation, and as described above. After design of new structures on LOT 2, and before construction, pruning specifications shall be written to define the operation that will provide clearance, and all pruning shall be performed by an ISA certified arborist with experience pruning mature fir trees. Attachments: 1. Assumptions and Limiting Conditions 2. Certification of Performance 3. Significant Tree Inventory 4. Tree Retention Plan Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 9 of 14 Greenforest Registered Consulting Arborist Attachment No. 1 - Assumptions & Limiting Conditions 1. A field examination of the site was made 6/20/2022. My observations and conclusions are as of that date. 2. Care has been taken to obtain all information from reliable sources. All data has been verified insofar as possible; however, the consultant/arborist can neither guarantee nor be responsible for the accuracy of information provided by others. 3. I am not a qualified land surveyor. Reasonable care was used to match the trees indicated on the sheets with those growing in the field. 4. Construction activities can significantly affect the condition of retained trees. All retained trees should be inspected after construction is completed, and then inspected regularly as part of routine maintenance. 5. Unless stated other wise: 1) information contained in this report covers only those trees that were examined and reflects the condition of those trees at the time of inspection; and 2) the inspection is limited to visual examination of the subject trees without dissection, excavation, probing, or coring. There is no warranty or guarantee, expressed or implied that problems or deficiencies of the subject tree may not arise in the future. 6. All trees possess the risk of failure. Trees can fail at any time, with or without obvious defects, and with or without applied stress. A complete evaluation of the potential for this (a) tree to fail requires excavation and examination of the base of the subject tree. Permission of the current property owner must be obtained before this work can be undertaken and the hazard evaluation completed. 7. The consultant/appraiser shall not be required to give testimony or to attend court by reason of this report unless subsequent contractual arrangements are made. Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 10 of 14 Greenforest Registered Consulting Arborist Attachment No. 2 - Certification of Performance I, Favero Greenforest, certify that: • I have personally inspected the trees and the property referred to in this report and have stated my findings accurately. • I have no current or prospective interest in the vegetation or the property that is the subject of this report and have no personal interest or bias with respect to the parties involved. • The analysis, opinion, and conclusions stated herein are my own and are based on current scientific procedures and facts. • My analysis, opinion, and conclusions were developed and this report has been prepared according to commonly accepted arboricultural practices. • No one provided significant professional assistance to me, except as indicated within the report. • My compensation is not contingent upon the reporting of a predetermined conclusion that favors the cause of the client of any other party nor upon the results of the assessment, the attainment of stipulated results, or the occurrence of any subsequent events. I further certify that I am a member in good standing of International Society of Arboriculture (ISA), and the ISA PNW Chapter, I am an ISA Certified Arborist (#PN-0143A) and am Tree Risk Assessment Qualified, and am a Registered Consulting Arborist® (#379) with American Society of Consulting Arborists. I have worked as an independent consulting arborist since 1989. Signed: GREENFOREST, Inc. By Favero Greenforest, M. S. Date: December 6, 2022 Favero Greenforest Digitally signed by Favero Greenforest DN: cn=Favero Greenforest, o, ou, email=greenforestinc@mindspring.com, c=US Date: 2022.12.06 13:23:39 -08'00' Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 11 of 14 Greenforest Registered Consulting Arborist Dripline radius from center of tree Condition ratings ‘1’ good to excellent, ‘2’ fair, ‘3’ poor For offsite trees, driplines are reported as branch length overhanging the subject property as measured from an existing fence. DBH is estimated Type indicates if tree is Deciduous (D), Evergreen (E), broadleaf (B) and coniferous (C) LOD see text in report body Attachment No. 3 Significant Tree Inventory Proposed Action Category Re t e n t i o n Pr i o r i t y TREE ID DBH Species Dri p l i n e ( R ’ ) He a l t h St r u c t u r e Comments on Condition Vi a b l e T r e e Tr e e T y p e LO D ( f t . ) Retain Significant 2 8188 20” Douglas-fir 20’ 1 2 Dense ivy covering trunk CE 10’ Retain Significant 2 8189 19” Deodar cedar 18’ 1 1 CE 10’ Remove Dangerous 2 8226 19” Douglas-fir 11’ 3 2 Thin foliage, root rot disease No CE 10’ Remove Significant 2 8230 13” Blue spruce 8’ 1 1 CE 7’ Retain Dangerous 2 8251 16” Pear 13’ 3 3 Foliar disease, trunk decay No BD 8’ Remove Dangerous 2 8273 24” Western red-cedar 16’ 2 3 20' stump No CE 12’ Remove Dangerous 2 8274 16” Douglas-fir 0’ 3 3 20' stump No CE 8’ Remove Significant 2 8276 15” Walnut 16’ 1 2 Wisteria vine growing in canopy BD 8’ Remove Significant 2 8277 22” Walnut 20’ 1 1 BD 11’ Remove Dangerous 1 8294 16” Douglas-fir 0’ 3 3 20' stump No CE 8’ Remove Dangerous 1 8295 14” Douglas-fir 0’ 3 3 20' stump No CE 7’ Remove Dangerous 1 8297 14” Douglas-fir 0’ 3 3 20' stump No CE 7’ Retain Significant 1 8298 19” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Retain Significant 1 8299 15” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 8’ Retain Significant 1 8300 17” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 9’ Retain Significant 1 8301 22” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 11’ Retain Significant 1 8302 20” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 12 of 14 Greenforest Registered Consulting Arborist Proposed Action Category Re t e n t i o n Pr i o r i t y TREE ID DBH Species Dri p l i n e ( R ’ ) He a l t h St r u c t u r e Comments on Condition Vi a b l e T r e e Tr e e T y p e LO D ( f t . ) Retain Significant 1 8303 20” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Remove Significant 1 8304 20” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Remove Significant 1 8305 19” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Remove Significant 1 8306 18” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 9’ Remove Significant 1 8307 21” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 11’ Remove Significant 1 8308 22” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 11’ Remove Significant 1 8309 21” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 11’ Remove Significant 1 8310 19” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 10’ Remove Significant 1 8311 22” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 11’ ROW TREES Significant 8215 7” Norway maple 14’ 1 1 BD 6’ Significant 8216 8” Norway maple 14’ 1 1 BD 6’ Significant 8217 8” Norway maple 14’ 1 1 BD 6’ Significant 8218 6” Norway maple 14’ 1 1 BD 6’ Significant 8219 7” Norway maple 14’ 1 1 BD 6’ Significant 8220 8” Norway maple 14’ 1 1 BD 6’ Significant 8221 7” Norway maple 14’ 1 1 BD 6’ OFFSITE TREES Significant 1 1 14” Douglas-fir 16’ 1 2 Topped in past, 20' live stump CE 7’ Significant 1 2 16” Douglas-fir 16’ 1 2 Pruned for OHPL CE 8’ Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 13 of 14 Greenforest Registered Consulting Arborist Proposed Action Category Re t e n t i o n Pr i o r i t y TREE ID DBH Species Dri p l i n e ( R ’ ) He a l t h St r u c t u r e Comments on Condition Vi a b l e T r e e Tr e e T y p e LO D ( f t . ) Significant 1 3 14” Douglas-fir 16’ 1 2 Topped in past, multiple leaders CE 7’ Significant 2 8224 8” Flowering cherry 6’ 1 2 Brown rot disease, branch dieback BD Significant 2 8225 8” Norway maple 14’ 1 1 BD Significant 2 8243 8” Flowering cherry 8’ 1 1 BD Significant 2 8244 7” Flowering cherry 8’ 1 1 BD NE. 8TH STREET HO Q U I A M A V E . N E . 12 TREE RETENTION CALCULATIONS TREE TO BE RETAINED (TYP.) TREE TO BE REMOVED (TYP.) OFFSITE TREE (TYP.) TREE PROTECTION FENCING (TYP.) PER R.M.C. 04.04.130.H.1.b LEGEND PO P P Y C O U R T P R E L I M I N A R Y S H O R T P L A T IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR 2 2 - X X X X X X C2 2 - X X X X X X DE SI GN 12100 NE 195th St, Suite 300 Bothell, Washington 98011 425.885.7877 CIVIL ENGINEERING LANDSCAPE ARCHITECTURE PLANNING SURVEYING PROJECT NO. 22161 LU A - 2 2 - X X X X X X NW1/4, SE1/4, AND SW1/4, NE1/4, SEC. 10, TWP. 23 N., RGE. 5 E., W.M. LOT NUMBER SQ. FT. TREE CREDITS REQUIRED REMAINING 1 2 11,478 8,036 5 8 45 16 PROVIDED 0 0 TOTAL 13 61 0 TREE RETENTION TABLE PER R.M.C. 04.04.130.H.1.A.I. TOTAL ONSITE SIGNIFICANT TREES: REQUIRED RETAINED SIGNIFICANT TREES: PROVIDED RETAINED SIGNIFICANT TREES: TOTAL REPLACEMENT TREES REQUIRED: NOTE: OFFSITE AND UNHEALTHY TREES OMITTED FROM CALCULATIONS; SEE ARBORIST REPORT BY GREENFOREST INC. FOR DETAILS 19 SIGNIFICANT TREES 6 (30 %) = 19 SIGNIFICANT TREES X .30 8 SIGNIFICANT TREES 0 TREES LANDSCAPE PLAN SCALE 1" = 20' TREE TO BE RETAINED (TYP.) TREE TO BE REMOVED (TYP.) OFFSITE TREE (TYP.) TREE PROTECTION FENCING (TYP.) NOTE PER R.M.C. 04.04.130.H.9.B. PROTECTION FENCING SHALL BE CHAIN LINK TEMPORARY CONSTRUCTION FENCING AROUND THE DRIP LINES OF ALL RETAINED TREES OR AT A DISTANCE SURROUNDING THE TREE EQUAL TO ONE AND ONE-QUARTER FEET (1-1/4') FOR EVERY ONE INCH (1") OF TRUNK CALIPER, WHICHEVER IS GREATER. PLACARDS SHALL BE PLACED ON FENCING EVERY FIFTY FEET (50') INDICATING THE WORDS, “NO TRESPASSING – PROTECTED TREES,” OR ON EACH SIDE OF THE FENCING. SITE ACCESS TO INDIVIDUALLY PROTECTED TREES OR GROUPS OF TREES SHALL BE FENCED AND SIGNED. INDIVIDUAL TREES SHALL BE FENCED ON FOUR (4) SIDES. IN ADDITION, THE APPLICANT SHALL PROVIDE SUPERVISION WHENEVER EQUIPMENT OR TRUCKS ARE MOVING NEAR TREES. TREE DENSITY CALCULATIONS TREE CREDITS TREE CREDITS LIMIT OF DISTURBANCE (TYP.) DANGEROUS TREE (TYP.) TREES 8304 AND 8305 CUT TO GRADE, STUMP LEFT INTACT DANGEROUS TREE (TYP.) Robert P. Wenzl, Tuscany Construction, LLC RE: Poppy Court Arborist Report, 805 Hoquiam Ave NE, Renton WA December 6, 2022 Page 14 of 14 Attachment No. 4 Tree Retention Plan NE. 8TH STREET HO Q U I A M A V E . N E . 12 TREES QTY BOTANICAL NAME COMMON NAME SIZE SPACING 5 AMELANCHIER X GRANDIFLORA `AUTUMN BRILLIANCE``AUTUMN BRILLIANCE` SERVICEBERRY 2" CAL. MIN.30` O.C. SHRUB AREAS QTY BOTANICAL NAME COMMON NAME SIZE SPACING 2,309 SF STREET FRONTAGE LANDSCAPING 107 ACORUS GRAMINEUS `OGON`GOLDEN VARIEGATED SWEETFLAG 2 GAL. MIN. 231 SF ARCTOSTAPHYLOS UVA-URSI KINNIKINNICK 1 GAL.18" O.C. 40 CORNUS STOLONIFERA `KELSEYI`KELSEY DOGWOOD 3 GAL/18" HT. MIN.3` O.C. 231 SF FRAGARIA CHILOENSIS BEACH STRAWBERRY 1 GAL.18" O.C. 10 ILEX CRENATA `HELERII`HELER JAPANESE HOLLY 3 GAL/18" HT. MIN.5` O.C. 14 NANDINA DOMESTICA `GULF STREAM` TM HEAVENLY BAMBOO 3 GAL/18" HT. MIN.3` O.C. 14 OSMANTHUS HETEROPHYLLUS `GOSHIKI`GOSHIKI HOLLY OLIVE 5 GAL/36" HT. MIN.3` O.C. 15 PRUNUS LAUROCERASUS `OTTO LUYKEN`LUYKENS LAUREL 3 GAL./24" HT. MIN.3` O.C. 27 RHODODENDRON X PJM PJM RHODODENDRON 5 GAL/36" HT. MIN.4` O.C. 40 VIBURNUM DAVIDII DAVID VIBURNUM 5 GAL./30" HT. MIN.3` O.C. 736 SF RIGHT-OF-WAY LANDSCAPING 736 SF ARCTOSTAPHYLOS UVA-URSI KINNIKINNICK 1 GAL.18" O.C. LANDSCAPE PLAN TREE TO BE RETAINED (TYP.) OFFSITE TREE (TYP.) STREET TREE (TYP.) GROUNDCOVER (TYP.) SCALE 1" = 20' PO P P Y C O U R T P R E L I M I N A R Y S H O R T P L A T IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR 2 2 - X X X X X X C2 2 - X X X X X X DE S I GN 12100 NE 195th St, Suite 300 Bothell, Washington 98011 425.885.7877 CIVIL ENGINEERING LANDSCAPE ARCHITECTURE PLANNING SURVEYING PROJECT NO. 22161 LU A - 2 2 - X X X X X X NW1/4, SE1/4, AND SW1/4, NE1/4, SEC. 10, TWP. 23 N., RGE. 5 E., W.M. LANDSCAPE SCHEDULE 1. STREET TREE PLANTING STREET TREE LOCATION IS APPROXIMATE. ADJUST AS NEEDED DUE TO CONFLICT WITH UTILITIES, DRIVEWAYS AND/OR OTHER OBSTRUCTIONS ENCOUNTERED. ROOT BARRIER TO BE USED WITHIN ALL PLANTER STRIPS CONTAINING STREET TREES 2. TREES ARE TO BE OFFSET 10' MIN. FROM STORMWATER PIPES AND STRUCTURES, AND 5' MIN. FROM OTHER UTILITY PIPES AND STRUCTURES. A LICENSED CONTRACTOR TO VERIFY CLEARANCE REQUIREMENTS PRIOR TO PLANTING TREES, AFTER UTILITY INSTALLATION. 3. ALL PLANT MATERIAL SHALL MEET THE MOST RECENT AMERICAN STANDARDS FOR NURSERY PLAN STOCK (ANSI Z60.1) LANDSCAPE NOTES PER R.M.C. 04.04.130.H.1.b LOT NUMBER SQ. FT. TREE CREDITS REQUIRED REMAINING 1 2 11,478 8,036 5 8 45 16 PROVIDED 0 0 TOTAL 13 61 0 TREE DENSITY CALCULATIONS TREE CREDITS TREE CREDITS 1 2 HEIGHT OF THE TREE MIN. 1' MIN. PLANTING DECIDUOUS TREE 2 x ROOTBALL DIA. LOOSELY PLACED TREE TIE. WEBBED TREE TIE OR NOTCHED PLASTIC TREE CHAIN OR OTHER APPROVED TREE TIE PRODUCT. LOOSELY PLACED ANCHOR STAKES TO BE PLACED AT 18" AWAY FROM THE TREE TRUNK. T-RAIL IRON STAKE OR ACCEPTABLE WOODEN SUBSTITUTE. ANCHOR FIRMLY GALVANIZED WIRE OR CABLE; TWIST WIRE TO TIGHTEN ONLY ENOUGH TO KEEP FROM SLIPPING (ALLOW FOR SOME TRUNK MOVEMENT) TRUNK FLARE TO BE 1" - 2" ABOVE FINISHED GRADE. DO NOT COVER WITH SOIL OR MULCH. 2" - 4" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK 4" HIGH SAUCER AROUND EDGE OF PLANTING PIT. FIRMLY FORMED BY TOP SOIL. FINISH GRADE ROUGHEN EDGES OF PIT ALL TWINES, WIRE AND BURLAP TO BE CUT AND REMOVED FROM TOP HALF OF ROOTBALL. NON BIODEGRADABLE MATERIALS SHALL BE REMOVED COMPLETELY. CUT AND REMOVE GIRDLING ROOTS. AMENDED TOP SOIL BACKFILL COMPACTED SOIL TO FORM PEDESTAL TO PREVENT SETTLING NOT TO SCALE NOT TO SCALE PLANTING CONIFER TREE TRUNK FLARE TO BE 1" - 2" ABOVE FINISHED GRADE. DO NOT COVER WITH SOIL OR MULCH. 2" - 4" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK 4" HIGH EARTH SAUCER AROUND EDGE OF PLANTING PIT12 HEIGHT OF THE TREE MIN. 1' MIN. FINISH GRADE ROUGHEN EDGES OF PIT COMPACTED SOIL TO FORM PEDESTAL TO PREVENT SETTLING LOOSELY PLACED TREE TIE. WEBBED TREE TIE OR NOTCHED PLASTIC TREE CHAIN OR OTHER APPROVED TREE TIE PRODUCT. LOOSELY PLACED PLACE ROOTBALL ON COMPACTED SOIL PEDESTAL TO PREVENT SETTLING 4" HIGH EARTH SAUCER AROUND EDGE OF PLANTING PIT ROUGHEN EDGES OF PIT EXISTING GRADE LOOSELY PLACED TREE TIE. WEBBED TREE TIE OR NOTCHED PLASTIC TREE CHAIN OR OTHER APPROVED TREE TIE PRODUCT. LOOSELY PLACED GALVANIZED WIRE OR CABLE; TWIST WIRE TO TIGHTEN ONLY ENOUGH TO KEEP FROM SLIPPING (ALLOW FOR SOME TRUNK MOVEMENT) PLANTING DECIDUOUS TREE ON SLOPE NOT TO SCALE 1' MIN. 4" HIGH EARTH SAUCER AROUND EDGE OF PLANTING PIT ROUGHEN EDGES OF PIT TAMP TOPSOIL BACKFILL AROUND ROOTBALL BASE FIRMLY WITH FOOT PRESSURE TO AVOID SHIFT OF ROOTBALL PLACE ROOTBALL ON COMPACTED SOIL TO PREVENT SETTLING PLANTING CONIFER TREE ON SLOPE NOT TO SCALE SHRUB SELECTED SHALL BE HEALTHY, FULL AND BUSHY. SET CROWN OF PLANT AT FINISHED GRADE 2" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK 2" HIGH SAUCER AROUND EDGE OF PLANTING PIT. FIRMLY FORMED BY TOP SOIL. FINISH GRADE ROOTBALL AMENDED TOP SOIL BACKFILL ROUGHEN EDGES OF PIT CUT NEW ROOT MASS TO STIMULATE NEW ROOT GROWTH COMPACTED SOIL TO FORM PEDESTAL TO PREVENT SETTLING 2 X ROOTBALL DIA. SHRUB SELECTED SHALL BE HEALTHY, FULL AND BUSHY. EXISTING SLOPE 2" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK SAUCER 2" HIGH ABOVE MULCH: FIRMLY COMPACT FINISH GRADE ROOTBALL ROUGHEN ALL SURFACES OF PIT CUT NEW ROOT MASS TO STIMULATE NEW ROOT GROWTH PLANTING SHRUB NOT TO SCALE PLANTING SHRUB ON SLOPE NOT TO SCALE PLANT SELECTED SHALL BE HEALTHY 2" LAYER OF MULCH; TAPER TO CROWN FINISHED GRADE ROOTBALL TOPSOIL BACKFILL & FERTILIZER CUT NEW ROOT MASS TO STIMULATE NEW ROOT GROWTH EXISTING SUBGRADE 2 X ROOTBALL DIA. EQUAL EQUAL EQUAL PLANT SPACING PER PLANT TYPE; SEE SCHEDULE NOTE: TO AVOID LANDSCAPE INTRUSION INTO PATHS, THE FOLLOWING PLANTING SPACING OFF-SETS FROM EDGE OF ALL PATHS, DRIVES, ACCESS ROUTES, ETC. SHALL BE MET: GROUND COVER: 18" SMALL SHRUBS (UNDER 3' TALL): 30" MEDIUM SHRUBS (FROM 3' TALL TO 6'): 42" LARGE SHRUBS (OVER 6' TALL): 48" PLANTING GROUNDCOVER NOT TO SCALE NOT TO SCALE PLANT SPACING ROOT BARRIER (DEEPROOT UNIVERSAL BARRIER OR SIMILAR) NOT TO SCALE EXISTING SUBGRADE TREE SELECTED SHALL BE HEALTHY AND WELL BRANCHED. CENTRAL LEADER SHALL NOT BE CUT. PRUNE BROKEN BRANCHES BEFORE PLANTING. EXISTING SUBGRADE COMPACTED SOIL TO FORM PEDESTAL TO PREVENT SETTLING 2 x ROOTBALL DIA. D790B D638 D638 Flexural Modulus Yield Elongation - Hinge Yield Elongation - Wall Tensile strength @ yield - Wall 7.44% 2.354 PSI Rockwell Hardness r. scale - Wall Tensile strength @ yield - Hinge Notched Izod Impact - Wall D256A D785A D638 D638 2.846 PSI 7.01% 119.625 PSI 3.84 (ft-lbs) 84.4 UB 24-2 Specifications 24" DeepRoot® Tree Root Barrier Specified tree root barrier is a mechanical barrier and root deflector used to prevent tree roots from damaging hardscapes and landscapes. Assembled in 24" (609 mm) long modules to create varying lengths for linear applications, or perimeter surround applications in varying sizes. A. Materials 1. The contractor shall furnish and install tree root barrier as specified. The tree root barrier shall be either product #UB 24-2 as manufactured by DeepRoot® Green Infrastructure, LLC, 530 Washington Street, San Francisco, CA, www.deeproot.com (800.458.7668). 2. Root barrier shall be recyclable, black, injection molded panels with 0.80" (2.03 mm) wall thickness in modules 24" (609 mm) long and 24" (609 mm) deep. 3. Root barrier shall be manufactured with 75% reprocessed polypropylene with added ultraviolet inhibitors. 4. Root barrier shall be comprised of 24" (60.96 cm) panels. Each panel shall have no less than four (4) Molded Integral Vertical Root Directing Ribs of a minimum 0.075" (1.90 mm) thickness, protruding 1/2" (12.7 mm) at 90° from interior of the barrier panel, spaced 6" (152.4 mm) apart. (See Details A & D) 5. Root barrier shall have a Double Top Edge consisting of two parallel, integral, horizontal ribs at the top of the panel at 0.060" (1.52 mm) thickness, 3/8" (9.53 mm) wide and 1/4" (6.35 mm) apart with the lower rib attached to the vertical Root Directing Ribs (See Detail A). 6. Root barrier shall have a minimum of twelve (12) Anti-Lift Ground Lock Tabs consisting of integral horizontal ridges of minimum 0.075" (1.90 mm) thickness in the shape of a segment of an oblong, the 2" (50.8 mm) chord of the segment joining the panel wall and the segment, protruding 3/8" (9.53 mm) from the panel. The twelve ground locks on each panel shall be about equally spaced between each of the vertical root directing ribs (Four (4) between each set of ribs, see Details B & D). 7. Root barrier shall have an integrated Zipper Joining System for assembly by sliding one panel into another (See Detail C). U.S. Patents: 5,305,549; and 5,528,857. Other Patents Pending. ASTM Test MethodPropertiesTypical Value DETAIL A DOUBLE TOP EDGE AND VERTICAL ROOT DIRECTING RIB Double Top Edge Integral Vertical Root Directing Rib DETAIL B - ANTI-LIFT GROUND LOCK TAB DETAIL C - ZIPPER JOINING SYSTEM DETAIL D - TREE ROOT BARRIER PANEL Patented Zipper Joining System Patented Double Top Edge for prevention of root over-growth, extra strength, ultraviolet protection and improved appearance. (See Detail A) DeepRoot® name on every panel. U.S. Patent Nos. 5,305,549 and 5,528,857 and other patents pending 90° Root Directing Rib, integral to panel Root Barrier Panel, 0.080" (2.03 mm) thick 75% reprocessed polypropylene Rounded edges for safety and strength © Copyright 2014 DeepRoot Green Infrastructure, LLC Patented Anti-Lift Ground Lock Tabs (See Detail B) SOURCE: DEEPROOT FINISH GRADE; 2:1 MAX. EXISTING GRADE FINISH GRADE; 2:1 MAX. 1' MIN. LOOSELY PLACED TREE TIE. WEBBED TREE TIE OR NOTCHED PLASTIC TREE CHAIN OR OTHER APPROVED TREE TIE PRODUCT. LOOSELY PLACED TREE SELECTED SHALL BE HEALTHY AND WELL BRANCHED. CENTRAL LEADER SHALL NOT BE CUT. PRUNE BROKEN BRANCHES BEFORE PLANTING. GALVANIZED WIRE OR CABLE; TWIST WIRE TO TIGHTEN ONLY ENOUGH TO KEEP FROM SLIPPING (ALLOW FOR SOME TRUNK MOVEMENT) ANCHOR STAKES TO BE PLACED AT 18" AWAY FROM THE TREE TRUNK. T-RAIL IRON STAKE OR ACCEPTABLE WOODEN SUBSTITUTE. ANCHOR FIRMLY ALL TWINES, WIRE AND BURLAP TO BE CUT AND REMOVED FROM TOP HALF OF ROOTBALL. NON BIODEGRADABLE MATERIALS SHALL BE REMOVED COMPLETELY. CUT AND REMOVE GIRDLING ROOTS. EXISTING SUBGRADE AMENDED TOP SOIL BACKFILL TREE SELECTED SHALL BE HEALTHY AND WELL BRANCHED. CENTRAL LEADER SHALL NOT BE CUT. PRUNE BROKEN BRANCHES BEFORE PLANTING. ANCHOR STAKES TO BE PLACED AT 18" AWAY FROM THE TREE TRUNK. T-RAIL IRON STAKE OR ACCEPTABLE WOODEN SUBSTITUTE. ANCHOR FIRMLY TRUNK FLARE TO BE 1" - 2" ABOVE FINISHED GRADE. DO NOT COVER WITH SOIL OR MULCH. ALL TWINES, WIRE AND BURLAP TO BE CUT AND REMOVED FROM TOP HALF OF ROOTBALL. NON BIODEGRADABLE MATERIALS SHALL BE REMOVED COMPLETELY. CUT AND REMOVE GIRDLING ROOTS. GALVANIZED WIRE OR CABLE; TWIST WIRE TO TIGHTEN ONLY ENOUGH TO KEEP FROM SLIPPING (ALLOW FOR SOME TRUNK MOVEMENT) ANCHOR STAKES TO BE PLACED AT 18" AWAY FROM THE TREE TRUNK. T-RAIL IRON STAKE OR ACCEPTABLE WOODEN SUBSTITUTE. ANCHOR FIRMLY TREE SELECTED SHALL BE HEALTHY AND WELL BRANCHED. CENTRAL LEADER SHALL NOT BE CUT. PRUNE BROKEN BRANCHES BEFORE PLANTING. TRUNK FLARE TO BE 1" - 2" ABOVE FINISHED GRADE. DO NOT COVER WITH SOIL OR MULCH. 2" - 4" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK ALL TWINES, WIRE AND BURLAP TO BE CUT AND REMOVED FROM TOP HALF OF ROOTBALL. NON BIODEGRADABLE MATERIALS SHALL BE REMOVED COMPLETELY. CUT AND REMOVE GIRDLING ROOTS. 2" - 4" OF WOODY MULCH. DO NOT PLACE IN CONTACT WITH TRUNK 1 2 HEIGHT OF THE TREE MIN. 1 2 HEIGHT OF THE TREE MIN. SET CROWN OF PLANT AT FINISHED GRADE AMENDED TOP SOIL BACKFILL EXISTING SUBGRADE COMPACTED SOIL TO FORM PEDESTAL TO PREVENT SETTLING PO P P Y C O U R T P R E L I M I N A R Y S H O R T P L A T IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR 2 2 - X X X X X X C2 2 - X X X X X X DE SI GN 12100 NE 195th St, Suite 300 Bothell, Washington 98011 425.885.7877 CIVIL ENGINEERING LANDSCAPE ARCHITECTURE PLANNING SURVEYING PROJECT NO. 22161 LU A - 2 2 - X X X X X X NW1/4, SE1/4, AND SW1/4, NE1/4, SEC. 10, TWP. 23 N., RGE. 5 E., W.M.