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HomeMy WebLinkAboutR-43883000 C0 M 1 1 LLI GENERAL LANDSCAPE NOTES 1. Contractor is responsible for obtaining all necessary permits from the appropriate agency prior to commencing work. Contractor shall contact Line Locators (811) a min. of 48 hours prior to any digging or trenching. If there are any discrepancies with existing lines and landscaping, it is the contractor's responsibility to contact the landscape architect and request a site visit to address the conflicts. Contractor shall comply and conform to any and all local and state codes for work, schedules and any other project related requirements. 2. Contractor shall coordinate directly with the landscape architect for all landscape related issues, concerns, inspections and approvals. Contractor shall provide the landscape architect with a written request for a site visit to address any related items. 3. Scope of work shall include an and all specified and unspecified but related incidental work to achieve the design indicated p Y p p 9 on the landscape plans. All labor, materials, subcontractors, equipment, and related incidental items shall be supplied and installed to achieve a complete project, unless directed otherwise by the general contractor or landscape architect. 4. Contractor to verify all sub grades are set below required amendments to insure the finished grade will match what is intended by civil or drainage design. All sub grades and finished or final grades shall be graded to drain to the designed drainage system with positive drainage away from all structures. 5. Grade Preparation: a. Slopes used for grass plantings or turf shall be less than 3:1 or 33 percent. Otherwise plantings should not require mechanized mowing equipment. Any invasive / toxic vegetation shall be removed and treated with herbacide (hand applied to minimize treatment to specific plant) prior to any new planting. Native vegetation shall not be disturbed. Soil Preparation. a. Where soils are compacted and in informal grassy play areas, planting beds should be deep tilled to a depth of at least 12 inches. Soils shall be enhanced through the addition of the following materials: bark and forestry by-products, organic matter such as composted yard waste, organics and other amendments as needed through a soils test. Soils that meet a balanced PH between 6-8PH, do not required amending. Where Pit Planting, see planting detail for planting ring sizes and depths. Scarify the edges of planting pits to encourage root expansion. b. On project sites where topsoil is limited or nonexistent, a minimum depth of 6 (six) inches of sandy loam topsoil should be tilled into the soil to a depth of 12 inches through all planting areas with compacted soils. c. For all newly planted areas, three cubic yards of composted organic matter per 1,000 square feet of landscape area should be added to a depth of four inches to the top of the soil and Tilled in. d. Seeded areas shall be fine graded and rolled. New Soil depths in lawn areas shall be 4 Inches. e. Native undisturbed areas with new trees shall be pit planted per tree planting details. f. In order to utilize on site Top Soil, contractor shall submit a soil test showing the PH (acid) level of existing Top Soil on site. A ziploc type bag of soil can be delivered to Spectra Lab in the Tacoma Tideflats - 2221 Ross Way, Tacoma, WA 98421 or a similar testing lab to measure PH level in soils. 6. Mulching of Newly Planted or Replanted Areas. a. Mulches must be applied to the following depths: a minimum 3 (three) inches over bare soil, and two inches where plant materials will cover. b. Mulches must include organic materials, such as wood chips and shredded bark. c. Nonporous materials, such as plastic sheeting, shall not be used in any area of the landscape because of down -slope erosion and potential soil contamination from herbicide washing. d. Mulch should be applied regularly to and maintained in all planting areas to assist soils in retaining moisture, reducing weed growth, and minimizing erosion. 7. Contractor shall field layout all plant material and contact the landscape architect for a site visit to approve the layout. Any field modifications shall be done by the landscape architect prior to planting. 8. Contractor shall immediately notify the landscape architect of any poor drainage condition in landscape areas. No standing water shall be permitted in any landscape areas - either on the surface or below the topsoil. The landscape architect shall coordinate the drainage solution with the general contractor and civil engineer. Once the concerns have been remedied planting shall commence. 9. All groundcover to be planted in a triangular spacing formation, equal in all directions to the centers of the groundcovers in distances indicated in the legend. Contractor shall verify all quantities of groundcovers by area calculations and spacing requirements. 10. Landscaping is to be per plan. Plant substitutions due to availability or otherwise will be allowed only with landscape architect, owner and agency approval. Any substitutions will be with material of similar size, growth characteristics, and quality. 11. All trees must be staked as necessary so as to maintain material in a healthy, vigorous growing condition. 12. Landscaping shall be installed in a professional workmanlike manner that is consistent and accepted throughout the industry. All landscape and irrigation work shall be performed by experienced persons familiar with scope of project. 13. All landscape material and labor is to be guaranteed for a period of one full year from the time of completion. 14. When planting 'Balled and Burlapped' product, remove all burlap, string & wire from any B&B plant material, cut and remove jute strings. Gently place in tact Rootbal into planting pit. If rootball breaks or is not solid - the plant is unacceptable and shall be replaced. 15. Street trees shall be high branching with canopy that starts at least 6' above finish grade. 16. All plant I.D. tags are to remain on the plant material until final inspection has been completed. Once approved all plant I.D. tags shall be removed and discarded appropriately. 17. Trees shall be cared for in accordance with the American National Standards Institute (ANSI) standard practices for trees, shrubs and other woody plant maintenance (ANSI 300) in order to allow them to reach there mature height and form. 18. Pruning of street trees shall be performed per the ANSI 300 standards so as to maintain the natural form of the tree, encourage vigorous growth to a mature spread and height, and avoid weakening the tree to create a hazard. Street trees shall not be topped pollarded, or otherwise pruned in a manner contrary to these goals, unless there is no practicable alternative that would preserve essential utility services. 19. Plant material selected is drought tolerant or native species. The project proponent (property Owner) shall be responsible for maintaining and watering all plant material throughout the first growing season and in times of drought. Temporary irrigation shall be provided via TREE GATOR BAGS attached to each tree. The bags shall be filled when i empty - approximately 1 time per week and as needed during drought months. The bags will remain on the trees for the establishment period of two summer seasons, after which, bags shall be removed by the owner. Owner may elect to have the contractor hired to water and warranty the plants for the establishment period. For planting warranties from contractor to be ensured, contractor shall be responsible for watering the plant material and keeping the mulch ring weed free for the first growing season as part of the contract. It is recommended to install the landscaping in the Spring (February - April) or Fall (October - December)when dormant but before hard freeze. TEMPORARY IRRIGATION The project proponent shall ensure that a minimum of one (1) inch of water is supplied each week to the restoration area between May 1 and October 15 for a least the first two years following initial planting. The calculated amount of required water shall include both natural rainfall and temporary irrigation. Know what's below. Call before you dia. CITY OF RENTON I PERMIT CENTER (D TREE RETENTION AND CREDIT WORKSHEET TREE RETENTION REQUIREMENTS A minimum retention of thirty percent (30%) of all significant trees (as defined in RMC 4-11-200) is required on site Please complete the form below to verify compliance with minimum tree retention requirements. Identify total number of trees 6-inch caliper or greater (or alder or 0 cottonwood trees 8-inch caliper or greater) on site: 16 Trees • Deductions - Certain trees are excluded from the retention calculation: 0 Trees that are high -risk, as defined in RMC 4-11-200: Trees 0 Trees within existing and proposed public right-of-way: Trees 0 Trees within wetlands, streams, very high landslide hazards, protected slopes, and associated buffers: Trees • Total remaining trees after deductions: 16 Trees • Required tree retention (30%): 4.8 Trees Required • Identify number of trees proposed for retention: Trees Proposed • Identify number of trees requested for replacement in lieu of retention (skip page 3 if no tree replacement is requested): 0 Trees TREE CREDIT REQUIREMENTS Tree credit requirements apply at a minimum rate of thirty (30) credits per net acre. Complete the form below to determine minimum tree credit requirements. • Gross area of property in square feet: 91368 Square Feet • Deductions: Certain areas are excluded from tree credit calculation: 0 Existing and proposed public right-of-way: Square Feet 0 Wetlands, streams, very high landslide hazards, protected slopes, and associated buffers: Square Feet • Total excluded area: 0 Square Feet • Net land area (after deductions) in square feet: 91368 Square Feet • Net land area (after deductions) in acres: 2.10 Acres • Required tree credits: 63 Tree Credits Required rentonwa.gov/permitcenter I planningcustomerservice@rentonwa.gov 1 425-430-7294 0 WHEN PLANTING ON STEEP SLOPE, MAINTAIN PLANT IN VERTICAL POSITION WITHIN PLANTING PIT. MAKE A RIM ON DOWNSLOPE SIDE OF 6" FROM:LAS\ PLANT PIT TO RETAIN WATER, OF BRANCHING ` I Y, J 3" MULCH--_ ENSURE PROPER SUBBASE EXISTS; CLEAR ALL CONCRETE AND OTHER DEB FROM PLANTERS PRIOR TO BACKFILLING _ AND PLANTING T NOTES: 1 12" 1. PLANTING BACKFILL: T 50% EXISTING SOIL, 50% 1/4 MINUS T COMPOST, MIXED THOROUGHLY 2. FOR MULCH TYPE SEE LANDSCAPE NOTES. 3. IF B&B AND BURLAP IS GREEN IN COLOR. REMOVE COMPLETELY BEFORE INSTALLING PLANT. TREE RETENTION AND CREDIT WORKSHEET PROPOSED TREE CREDITS Please complete the table below to calculate the total tree credits proposed for your project. Identify the quantity of trees for each tree category, after deducting trees within excluded areas, as shown in the previous section. TREE SIZE TREE CREDITS TREE QUANTITY I TOTAL TREE CREDITS RETAINED TREES Preserved tree 6 - 9" caliper 4 1 4 Preserved tree 10 -12" caliper 5 4 20 Preserved tree 12 -15" caliper 6 3 18 Preserved tree 16 -18" caliper 7 1 7 Preserved tree 19 - 21" caliper 8 0 0 Preserved tree 22 - 24" caliper 9 0 0 Preserved tree 25 - 28" caliper 10 0 0 Preserved tree 29 - 32" caliper 11 0 0 Preserved tree 33 - 36" caliper 12 0 0 Preserved tree 37" caliper and greater 13 0 0 NEW TREES New small species tree (30' or less at maturity) 0.25 0 New medium species tree (30' to 50' at maturity) 1 0 New large species tree (50' or more at maturity) 2 7 14 TREE CREDITS PROPOSED: 63 10/6/2022 Page 1 of 3 rentonwa.gov/permitcenter 1 planningcustomerservice@rentonwa.gov 1 425-430-7294 DECIDUOUS TREE INTERLOCKING PLASTIC TREE TIES OR AGENCY APPROVED EQUAL (2) 2x2 OR 2" DIA. WOOD STAKES DRIVEN INTO SUBGRADE OR SIM. METHOD FORM SAUCER WITH CONTINUOUS RIM TOP SOIL OR AMENDED BASE, REFER "'�inlllll TO LANDSCAPE NOTES FOR DEPTH WHEN B&B REMOVE ALL III -III WIRE AND ROLL BURLAP OFF TOP OF ROOTBALL III ICIII�I� �11� ♦ SCARIFY SIDES OF PIT, 2 X BALL DIA. BACKFILL WITH SOIL MIXTURE INDICATED IN THE NOTES IN 9' LAYERS. WATER AND TAMP TO REMOVE AIR POCKETS DECIDUOUS TREE PLANTING & STAKING DETAIL MULCH TO DEPTH SPECIFIED IN NOTES WHEN PLANTING ON A STEEP SLOPE, MAINTAIN PLANT IN VERTICAL POSITION WITHIN PLANTING PIT. ` MAKE A RIM ON DOWNSLOPE SIDE OF ` PLANT PIT TO RETAIN WATER. ` FORM CONTINUOUS RIM BACKFILL W/ BACKFILL MIXTURE AS �' I I INDICATED IN NOTE IN 9" LAYERS. -_ WATER AND TAMP TO REMOVE AIR POCKETS IT 1320 Alameda Ave, Suite B Nature By Design Fircrest, WA 98466 Landscape Architecture 253-460-6067 NBD PROJ #: 25003LSE No. No Scale mom 2 X BALL DIA. REMOVE ALL WIRE WRAP AND PLASTIC WRAP. REMOVE BURLAP FROM TOP OF ROOT BALL MULCH & TOPSOIL OR AMENDED BASE, REFER TO LANDSCAPE NOTES FOR DEPTH _-III NOTES: ` 1. PLANTING BACKFILL: 50% EXISTING SOIL, 50% 1/4 MINUS COMPOST, MIXED THOROUGHLY 2. FOR MULCH TYPE SEE LANDSCAPE NOTES. 3. IF B&B AND BURLAP IS GREEN IN COLOR. REMOVE COMPLETELY BEFORE INSTALLING PLANT. SHRUB PLANTING DETAIL No Scale ADDED 2.5% LS REQT CALCS REVISION SURVEYED: DESIGNED: KILO DRAWN: KILO K LO 4 6 2 6 K LO CHECKED: KILO BY DATE APPR APPROVED: r TEST HOLE FINISHED GRA[' MULCH LOOSE SOIL WITH VISIBLE DARK ORGANIC MATERIAL LOOSE OR FRACTURED SUBSOIL 10/6/2022 Page 2 of 3 NOTE: TEST HOLSE SHOULD BE ABOUT 1 FOOT DEEP (AFTER FIRST SCRAPING AWAY OF ANY MULCH) AND BE ABOUT 1 FOOT DEEP COMPOST AMENDED SOIL PER BMP T5.13 PAGE 3 N/A PER PAGE 1 TREE RETENTION AND CREDIT WORKSHEET TREE REPLACEMENT JUSTIFICATION Replacement may be authorized as an alternative to 30% retention provided the removal is the minimum necessary to accomplish the desired purpose and provided the proposal meets one of the following options: a. There are special circumstances related to the size, shape, topography, location, or surroundings of the subject property; or b. The strict application of the code would prevent reasonable use ofproperty; or pp p c. The strict application of the code would prevent compliance with minimum density requirements of the zone; or d. The project is a short plat with four (4) or fewer lots. Please attach a written justification demonstrating compliance with the requirements and criteria as descripted above. TREE REPLACEMENT QUANTITY Tree replacement quantity is determined based on the credit value of the trees proposed for removal. Larger, higher priority trees shall be used for calculation of tree replacement. Identify the quantity of each tree requested to be removed in lieu of 30% retention, based on tree size. List the identification number of each tree, as indicated in the arborist report. TREE SIZE TREE CREDITS TREE QUANTITY TREE INDENTIFICATION # TOTAL TREE CREDITS Tree 37" caliper+ 13 0 Tree 33 - 36" caliper 12 0 Tree 29 - 32" caliper 11 0 Tree 25 - 28" caliper 10 0 Tree 22 - 24" caliper 9 0 Tree 19 - 21" caliper 8 0 Tree 16 -18" caliper 7 0 Tree 12 -15" caliper 6 0 Tree 10 -12" caliper 5 0 Tree 6-9"caliper 4 0 REPLACEMENT CREDITS REQUIRED: 0 TREE REPLACEMENT PLANTING Identify the quantity of proposed new replacement trees (minimum size of 2-inch caliper). The total replacement credits proposed should be equal to or greater than the replacement credits required, as shown in the previous section. TREE SIZE TREE CREDITS TREE QUANTITY TOTAL TREE CREDITS New small species tree (30' or less at maturity) 0.25 0 New medium species tree (30' to 50' at maturity) 1 0 New large species tree (50' or more at maturity) 2 0 0 REPLACEMENT CREDITS PROPOSED: 0 rentonwa.sov/permitcenter I planningcustomerservice@rentonwa.gov 1 425-430-7294 30/6/2022 Page 3 of 3 PTH -H FOR FFIC AREAS SURFACE PREPARATION: 1. TILL THE SUB GRADE SOIL TO AN 8 INCH DEPTH. THOSE AREAS SUBJECTED TO VEHICLE TRAFFIC SHALL BE TILLED TO A DEPTH OF 12 INCHES. DO NOT SCARIFY OR TILL WITHIN THE DRIP LINE OF EXISTING TREES THAT WILL BE RETAINED. 2. PLACE 3 INCHES OF COMPOST MATERIAL AND TILL INTO 5 INCHES OF SOIL (A TOTAL AMENDED DEPTH OF ABOUT 9.5 INCHES FOR A SETTLED DEPTH OF 8 INCHES). 3. RAKE THE AREA SMOOTH AND REMOVE SURFACE ROCKS LARGER THAN 11NCH IN DIAMETER. 4. PLACE 2 INCHES OF GRADE AA COMPOST AND RAKE. COMPOST AMENDMENT QUALITY STANDARDS: 1. THE ORGANIC CONTENT FOR THE'PRE-APPROVED' AMENDMENT RATES CAN BE MET ONLY BY USING COMPOST THAT MEETS THE DEFINITION FOR 'COMPOSTED MATERIALS' IN WAC 173-350-220. 2. THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 35 TO 65 PERCENT AND A CARBON TO NITROGEN RATION BELOW 25:1 3. THE CARBON TO NITROGEN RATIO MAY BE AS HIGH AS 35:1 FOR PLANTINGS COMPOSED ENTIRELY OF PLANTS NATIVE TO THE PUGET SOUND LOWLANDS REGION. PREPARATION FOR INSPECTION: 1. PROVIDE SIX HOLES PER SITE; ALL HOLES SHALL BE EVENLY PLACED THROUGHOUT THE SITE TO DEMONSTRATE AUGMENTATION HAS BEEN COMPLETED. 2. TEST HOLES SHALL BE A MINIMUM OF 1 FOOT DEEP AND 1 FOOT SQUARE. 3. CONTRACTOR SHALL PROVIDE DOCUMENTS FOR THE GRADE AA COMPOST VOLUME DELIVERED TO THE SITE TO CONFIRM THE COMPOST ORIGIN AND QUALITY. INSPECTION VERIFICATION: 1. 2 INCHES OF COMPOST ON ALL DISTURBED SURFACES. 2. LOOSE SOIL FOR 8 INCHES WITH VISIBLE DARK ORGANIC MATTER. 3. LOOSE FRACTURED SUB SOILS SHOULD NOT BE EASY TO PENETRATE WITH A SHOVEL. 4 INCHES BELOW THE 8 INCHES. TOTAL DEPTH OF AUGMENTED AND LOOSENED SOIL SHALL BE 12 INCHES. SCALE: VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 N.T.S. ONE INCH DATUM AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY D CITY OF 140 RENTON Planning/Building/Public Works Dept IN COMPLIANCE WITH CITY OF RENTON STANDARDS CURRENT PLANNING AMorgnrotIL DEVELOPMENT ENGINEERING 'IL 06/03/ 026 mSi O 06/05/2026 ' 06/03/2026 pp WALKER SUBARU SERVICE CENTER PERMIT SET AHBL JOB #2240819.10 LANDSCAPE DETAILS & NOTES DATE: 4/8/2026 FIELDBOOK: PAGE: DRAWING NO: L2 SHEET: 41 6t OD Cfl O O O Q0 U T co O O O O LO N r.�