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HomeMy WebLinkAboutR-408547TOP OF CURB FLUSH W/RAMP FINISHED GRADE AT TOP OF RAMP (TYP) 6" WIDE CURB POURED MONOLITHIC W/RAMP (TYP BOTH SIDES) TOP OF CURB ELEV. J PER PLAN (TYP) 1 SLOPE PER PLAN, 1:12 Ml ADJACENT WALKWAY TOP OF RAMP LINE PER PLANS WHITE PAINTED STRIPING TOP OF CURB FLUSH W/F FINISHED GRADE AT TOP C RAMP (TYP) v 6" WIDE CURB POURED VG MONOLITHIC W/RAMP (TYP BOTH SIDES) ASPHALT PVMT PERK NOTE: CURB/RAMP ORIENTATION VARIES PER PLAN PLANS. HORIZONTAL LAYOUT OF CURBS/RAMP SHALL BE PER THE PLANS WALKWAY RAMP NTS DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 FOR EDGE TREATMENT OPTIONS. SEE $TO. PLAN 262.20 ROADWAY/ 6" MIN. PARKING LOT TOP BANK ELEVATION ION 2� TRANSITION ZONE SOIL, ' 2 5 MIN SEE STD. PLAN 262.20 t t A T-4DEPTH ARBORIST - r DESIGNER TO SPECIFY WATER STORAGE ELEVATION 11 1 OVERFLOW STRUCTURE PER STD. PLAN 262.40 UNLESS SPECIFIED OTHERWISE JSIDEWALK OR LANDSCAPING BOTTOM WIDTH SIDE SLOPE IITREE, BEE NOTE 9 MIN. 18" 6" MIN. 11 W MIN. 2"-12" PONDING FREEBOARD DEPTH 15 �- - - - - - =11 ITI 1- L+ e % 8 MIN WOOD CHIP MULCH, .,I. + , _ ANGLE OF REPOSE SEE NOTE 7 "''ir• �'V :�''- BIORETENTION SOIL MIX (BSM), 12" MIN� SEE NOTE 5 UNDERDRAIN AGGREGATE, jy SEE NOTE 6 OVERFLOW TO STORM MAIN `\\\ / ` SCARIFIED AND UNCOMPACTED SUBGRADE, LOW PERMEABILITY LINER SEE NOTES 1 AND 2 WHEN REQUIRED, SEE NOTE 3 UNDERDRAIN, SEE NOTE 4 NOTES: GRAVEL BASE, SEE STD. PLAN 262.40 1. AVOID COMPACTION OF EXISTING SUBGRADE BELOW BASIN. 2. SCARIFY SUBGRADE TO A DEPTH OF 3 INCHES MINIMUM IMMEDIATELY PRIOR TO PLACEMENT OF BIORETENTION SOIL MIX AND UNDERDRAIN AGGREGATE, EXCEPT WHEN LINER IS REQUIRED. 3. LINER TO BE INSTALLED ONLY WHEN REQUIRED IN THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). LOW PERMEABILITY LINER TO BE 30 MIL MIN. GEOMEMBRANE LINER OR 12 INCHES MIN. (DRY) CLAY LINER. CLAY LINER TO BE COMPACTED TO 95% MINIMUM DRY DENSITY (ASTM D698), WITH AT LEAST 30%CLAY PARTICLES PASSING (ASTM D422) AND AT LEAST 15% PLASTICITY INDEX (ASTM D4318). 4. UNDERDRAIN TO BE 6" MIN. (PRIVATE), 8" MIN. (PUBLIC) SLOTTED PVC PER ASTM D1785 SCH 40. SLOTS SHOULD BE CUT PERPENDICULAR TO THE LONG AXIS OF THE PIPE AND BE 0.014 TO 0.069 INCHES BY 1 INCH LONG AND BE SPACED 0.25 INCHES APART (SPACED LONGITUDINALLY). SLOTS SHOULD BE ARRANGED IN FOUR ROWS SPACED ON 45-DEGREE CENTERS AND COVER 112 OF THE CIRCUMFERENCE OF THE PIPE. SLOPE PIPE AT 0.5%MIN UNLESS OTHERWISE SPECIFIED. PROVIDE ONE CLEANOUT MIN. PER 100 FEET OF UNDERDRAIN, AND AT EACH END. SEE STD. PLAN 226.00. MATCH CROWN ELEVATION OF UNDERDRAIN TO OVERFLOW PIPE UNLESS OTHERWISE SPECIFIED. 5. 18" MIN. BIORETENTION SOIL MIX ON BOTTOM AND SIDES TO TOP OF PONDING AREA. BIORETENTION SOIL MIX TO MEET STD. PLAN 262.60. 6. UNDERDRAIN AGGREGATE TO MEET STD. PLAN 262.60. 7. ARBORIST WOOD CHIP MULCH TO MEET STD. PLAN 262.60. 8. MAXIMUM LONGITUDINAL SLOPE (ALONG DIRECTION OF FLOW) OF BIORETENTION SWALES SHALL BE 6%. 9. WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES. TREES MAY BE LOCATED IN BIORETENTION. REDUCE BOTTOM WIDTH TO 6 INCHES MINIMUM AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF LINER FOR LINED FACILITIES. GENERAL NOTES: 1. MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.D0, 265.10, AND 265.20, AND OTHER UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR CONFLICTS. 2. BSM PLACEMENT, GRADING, AND CONSOLIDATION SHALL NOT OCCUR WHEN THE BSM IS EXCESSIVELY WET OR HAS BEEN SUBJECTED TO MORE THAN 1/2" OF PRECIPITATION WITHIN 48 HOURS PRIOR TO PLACEMENT. EXCESSIVELY WET IS DEFINED AS BEING AT OR ABOVE 22% SOIL MOISTURE BY A GENERAL TOOLS AND INSTRUMENTS DSMM500 PRECISION DIGITAL SOIL MOISTURE METER WITH PROBE EQUIVALENT). . THERE SHOULD BE NO ( ) VISIBLE FREE WATER IN THE MATERIAL. THE CONTRACTOR SHALL PLACE BSM LOOSELY WITH A CONVEYOR BELT OR WITH AN EXCAVATOR OR LOADER FROM A HEIGHT NO HIGHER THAN 6 FEET, UNLESS OTHERWISE APPROVED BY THE ENGINEER (I.E., DO NOT DUMP MATERIAL DIRECTLY FROM TRUCK INTO CELL). COMPACT BSM USING NON -MECHANICAL COMPACTION METHODS (E.G.. BOOT PACKING, HAND TAMPING, OR WATER CONSOLIDATION) TO 83% It 2%) OF THE MAXIMUM DRY DENSITY PER MODIFIED PROCTOR TEST (ASTM D1557), OR AS DIRECTED BY THE ENGINEER. 3. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS. UNLESS OTHERWISE NOTED, DRAWING 15 NOT TD SCALE (NTS) STD. PLAN - 262.10 11 PUBLIC WORKS BIORETENTION SECTION PR D 4, DEPARTMENT (WITH UNDERDRAIN) GAZ 9/28/2018 I wara,adm,n.,v.,m, DATE 0 BIORETENTION SECTION WITH UNDERDRAIN :45 AN ADA SYMBOL NTS DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 CAST IRON BEEHIVE GRATE AND FRAME, SEE NOTE 1 - OPTIONAL W OR 8" STREAMBED COBBLES, PER WSDOT 9-03.11(2), SEE NOTE 2 SEE NOTE 3 - VARIES, 6 MAX. I SEE NOTE 4 (NP.) 1 STORM DRAIN PIPE, DESIGNER TO SPECIFY 6' MIN. 6" MIN. - W MIN. 12"MIN. SUMP 7„ CATCH BASIN ADJUSTMENT SECTION AS REQUIRED, DESIGNER TO SPECIFY ELEVATION DESIGN PONDING ELEVATION UNDERDRAIN PIPE, IF REQUIRED, SEE STD. PLAN 262.10 CATCH BASIN TYPE 1 PER STD. PLAN 200.00 OR OTHER STRUCTURE WITH APPROVAL CONCRETE BASE GRAVEL BACKFILL FOR DRAINS, COMPACT PER WSDOT STD. SPEC. 9-03.12(4) NOTES: 1. FRAME AND GRATE SHALL BE LOCKING AND GRATE SHALL BE BOLTED TO FRAME. FRAME SHALL CONFORM TO WSDOT STANDARD PLAN 0-30.10-01. GRATE TO BE DUCTILE IRON BEEHIVE GRATE FITTING 20'%24° FRAME. OLYMPIC FOUNDRY PART SM60BH OR EQUAL. SEE STANDARD SPECIFICATIONS 9-05.15(2). 2. MINIMUM STREAMBED COBBLE DIAMETER SHALL BE LARGER THAN MAXIMUM GRATE OPENING. 3. ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND FRAMES. 4. WHEN CONNECTING TO A NEW PIPE. USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE. GENERAL NOTES: 1. PLANT SPACING WITHIN FACILITY TO ALLOW MAINTENANCE ACCESS TO STRUCTURE. 2. 12-INCH MIN. CLEARANCE WITHIN OVERFLOW STRUCTURE SHALL BE PROVIDED FOR MAINTENANCE ACCESS. 3. OVERFLOW PIPES MUST BE LOCATED AT AN ELEVATION HIGHER THAN THE STORM DRAIN HYDRAULIC GRADE LINE TO PREVENT BACKFLOW INTO THE BIORETENTION FACILITY. 4. OVERFLOW STRUCTURE SHALL BE LOCATED WITHIN 10 FEET OF ROAD EDGE FOR MAINTENANCE ACCESS, UNLESS APPROVED OTHERWISE. OVERFLOW STRUCTURE MAY BE LOCATED IN SIDE SLOPES. 5. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS. UNLESS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE (NTS) STD. PLAN - 262.40 PUBLIC WORKS BIORETENTION - OVERFLOW OUTLET APPR ED: I DEPARTMENT STRUCTURE GAZ 9/28/2018 1 wexwmk,admmramrw DATE 0 BIORETENTION OVERFLOW STRUCTURE NTS C5.8 NTS cPm*ote r r a ENGINEERING PLLC 6413 Phinney Ave North Seattle, Washington 98103 Ph 206.596.7115 Ld coterraengineering.com 2 DO RECORD DRAWINGS REVISION :45 AN 4" WHITE PAINT STRIPE AROUND PERIMETER 4" WHITE PAINT STf 18" O.C. © 45° OUTLINE PER PLAN BLUE PAINTED BACKGROUND TO EXTEND MIN. 1' BEYOND SYMBOL (TYP ALL 4 SIDES) ADA LOADING STRIPING NTS DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 PLANTINGZONES, SEE BELOW 2 I I I I I I 2"-4- DEPTH ARBORIST I I I I I WOOD CHIP MULCH, SEE STD. PLAN 262.60 BOTTOM WIDTH SIDE SLOPE AT MIN, IS" TREE, SEE NOTE 1 ROADWAY � L-:-�,-- - - SIDEWALK OR LANDSCAPING 2"-12" DPTH PONDING - DEPTH 1.5 re TRANSITIONZONE SOIL, / \ \", d J ,, .:Cj „ •-q" •"' L`?' SEE STD. PLAN 262.20�� .6'-MIN.`-'� ' MIN''` BIORETENTION SOIL MIX, *+'1� " T ;. x ,1�. -r y' n�J'\ \ SEE STD. PLAN 262.80 NOTES: SCARIFIED AND UNCOMPACTED SUBGRADE 1. WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES, TREES MAYBE LOCATED IN BIORETENTION. REDUCE BOTTOM WIDTH TO 6" MIN. AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF LINER FOR LINED FACILITIES. GENERAL NOTES: 1. ALL PLANTS SHALL BE SELECTED WITH A MAXIMUM MATURE HEIGHT NOT GREATER THAN 30-INCHES ABOVE THE TOP OF THE FACILITY. WITH THE EXCEPTION OF TREES AND ACCENT SHRUBS. 2. SEE STD. PLANS 262.00, 262.10, AND 262.20 FOR SECTION VIEWS OF BIORETENTION FACILITIES. 3. SEE THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) TABLE C.2.6.A FOR A SELECTION OF APPROVED WATER TOLERANT PLANTS. ADDITIONAL SPECIES ARE ALLOWED WITH CITY APPROVAL. 4. SELECT MINIMUM OF 50% EVERGREEN PLANTS. 5. PLANTS ADJACENT TO STREET, DRIVEWAY, OR SIDEWALK SHALL BE SELECTED AND SPACED TO ALLOW ACCESS TO VEHICLES AND NOT IMPEDE PEDESTRIANS. 6. PLANTS SHALL BE SPACED TO ENSURE CLEAR ACCESS AND UNIMPEDED FLOW FROM INLETS, OUTLETS, AND OVERFLOWS. 7. CONTINUE MULCH FOR A MINIMUM OF 2-FEET PAST THE TOP OF BANK ELEVATION OR INSTALL LANDSCAPE EDGING IF FACILITY IS ADJACENT TO TURF. S. PLANTING DESIGN SHOULD MINIMIZE COMPACTION OF SIORETENTION SOIL MIX THROUGH PLANNED MAINTENANCE ACCESS. ANNUAL PLANTS REQUIRING SOIL DISTURBANCE FOR HARVESTING (E.G.. CARROTS) OR ANNUAL REPLANTING ARE NOT PERMITTED. 9. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS. TABLE: PLANTING ZONES ZONE PLANT TYPE LOCATION EMERGENTS, PERENNIALS & LOW SHRUBS (PLANTS O THAT CAN TOLERATE STANDING WATER) FACILITY BOTTOM PERENNIALS & LOW SHRUBS (PLANTS OEMERGENTS, '2 THAT CAN TOLERATE OCCASIONAL STANDING LOWER SLOPE TO TOP OF PONDING WATER) OGROUNDCOVERS/SHRUBS UPPER SLOPE I SIDEWALK GRADE OOO ACCENT SHRUB SHRUB SIDEWALK GRADE I LOWER SLOPE 1 FACILITY BOTTOM ASED ON ZONE)PRIATE OI TREE UPPER SLOPE, SEE NOTE 1 UNLESS OTHERWISE NOTED, DRAWING IS NOTTO SCALE (NTS) STD. PLAN - 262.50 oPUBLIC WORKS BIORETENTION PLANTING - APPR `�„ DEPARTMENT SECTION VIEW GAZ 9/28/2018 1 n"rk.admmrrmro< DATE 0 BIORETENTION PLANTING - SECTION VIEW NTS 4/9/21 SURVEYED: DESIGNED: MB DRAWN: MB CHECKED: PA BY DATE APPR APPROVED: SCALE: ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY VERTICAL, NAVD 1988 HORIZONTAL, NAD 1983/1991 DATUM :45 AN 3" O.D. SEE CONCRETE PP OR LANDSCAF PRE MOLDED JOINT FILLER 3" EXTENSION AS REQUIRED 6 X 3" REDU DOWNSPOUT CONNECTION C5"8 NTS DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 UNDERDRAIN AGGREGATE TABLE: UNDERDRAIN AGGREGATE GRADATION SIEVE SIZE PERCENT PASSING 3!44NCH 10O PERCENT 114-INCH 30 TO 60 PERCENT U.S. NO. 8 20 TO 50 PERCENT U.S. NO. 50 3 TO 12 PERCENT U.S. NO. 2D0 D TO 1 PERCENT UNDERDRAIN AGGREGATE MUST CONSIST OF SCREENED SAND, GRAVEL OR OTHER INERT MATERIALS. OR COMBINATIONS THEREOF, FROM SOURCES APPROVED BY THE ENGINEER, HAVING HARD, DURABLE PARTICLES FREE FROM ADHERENT COATINGS. THE MATERIALS MUST BE WASHED THOROUGHLY TO REMOVE CLAY, LOAM, ALKALI, ORGANIC MATTER, OR OTHER DELETERIOUS SUBSTANCES. PARTICLES HAVING A SPECIFIC GRAVITY LESS THAN 1.95 MUST NOT EXCEED 1.0 PERCENT OF THE TOTAL WEIGHT. ORGANIC MATTER, BY CALORIMETRIC TEST, MUST NOT BE DARKER THAN THE REFERENCE STANDARD COLOR (ORGANIC PLATE NO. 3) AASHTO T21 UNLESS OTHER TESTS PROVE A DARKER COLOR TO BE HARMLESS. BIORETENTION SOIL MIX BIORETENTION SOIL MIX (BSM) SHALL BE A WELL -BLENDED HOMOGENEOUS MIXTURE OF 60 TO 65 PERCENT BY VOLUME MINERAL AGGREGATE FOR BIORETENTION SOIL AND 35 TO 40 PERCENT BY VOLUME COMPOST AS DETAILED IN THE TABLES BELOW. MINERAL AGGREGATE FOR BIORETENTION SOIL TABLE: MINERAL AGGREGATE GRADATION SIEVE SIZE PERCENT PASSING 318-INCH 100 PERCENT U.S. NO. 4 95 TO 100 PERCENT U.S. NO. 10 75 TO 90 PERCENT U.S. NO. 40 25 TO 40 PERCENT U.S. NO, 10U 4 TO 10 PERCENT U.S. NO. 200 2 TO 4 PERCENT MINERAL AGGREGATE FOR BIORETENTION SOIL MUST BE FREE OF WOOD, WASTE. COATING, OR ANY OTHER DELETERIOUS MATERIAL, AND ALL AGGREGATE PASSING THE NO. 200 SIEVE SIZE MUST BE NON -PLASTIC. MINERAL AGGREGATE MUST BE ANALYZED BY AN ACCREDITED LAB USING THE SIEVE SIZES NOTED IN THE TABLE TO THE LEFT, AND MUST MEET THE REQUIRED GRADATIONS. COMPOST TABLE: COMPOST GRADATION SIEVE SIZE MIN. PERCENT PASSING 2-INCH 100 PERCENT 1-INCH 89 PERCENT SM-INCH 90 PERCENT 1A-INCH 75 PERCENT COMPOST MUST ORIGINATE A MINIMUM 65 PERCENT BY VOLUME FROM RECYCLED PLANT WASTE COMPRISED OF YARD DEBRIS, CROP RESIDUES, AND BULKING AGENTS, AND MEET THE DEFINITION OF "COMPOSTED MATERIAL" IN WAC 173-350-100. COMPOST SHALL HAVE A MOISTURE CONTENT THAT HAS NO VISIBLE FREE WATER OR DUST PRODUCED WHEN HANDLING THE MATERIAL. COMPOST SHALL HAVE AN ORGANIC MATTER CONTENT OF 40 PERCENT TO 65 PERCENT BY DRY WEIGHT, A CARBON TO NITROGEN RATIO BELOW 25:1, AND A pH BETWEEN 6.0 AND 8.0 ABORIST WOOD CHIP MULCH TABLE: ARBORIST WOOD CHIP MULCH GRADATION SIEVE SIZE PERCENT PASSING 6-INCH 100 PERCENT 2-INCH 95 TO 100 PERCENT 1-INCH 70 TO 100 PERCENT 518-INCH 0 TO 50 PERCENT U.S. NO. 4 0 TO 30 PERCENT ARBORIST WOOD CHIP MULCH SHALL BE COARSE GROUND WOOD CHIPS (APPROXIMATELY 112" TO 6" ALONG THE LONGEST DIMENSION) DERIVED FROM THE MECHANICAL GRINDING OR SHREDDING OF THE ABOVE -GROUND PORTIONS OF TREES. IT MAY CONTAIN WOOD, WOOD FIBER, BARK, BRANCHES, AND LEAVES, BUT MAY NOT CONTAIN WEEDS, WEED SEEDS, OR VISIBLE AMOUNTS OF SOIL. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) UNDERDRAIN AGGREGATE, PI°R( I STD. PLAN-262.60 �s PUBLIC WORKS BIORETENTION SOIL MIX, AND MULCH 9/28/2018 I "` DEPARTMENT GAZ SPECIFICATIONS DATE 0 BIORETENTION SOIL MIX AND MULCH SPECS NTS /I `' CONSTRUCTOR RECORD DRAWING THE INFORMATION ON THIS DRAWING INDICATES CHANGES MADE TO THE CONSTRUCTION DOCUMENTS BASED UPON UTILITY AS -BUILT SURVEY PREPARED BY DAVID EVANS & ASSOCIATES, INC., DATED 3/23/21, AND TRANSFERRED TO THE REPRODUCIBLE DRAWINGS BY THE ENGINEER. +_ CITY OF RENTON Planning/Building/Public Works Dept. 35 TO SD ?% :45 AN U (0 M T Nt 0) T T a J R-408547 w IN COMPLIANCE WITH CITY OF RENTON STANDARDS 0 2 WILLOWCREST TOWNHOMES EDMONDS AVE NE, RENTON, WA CML DETAILS z O U) W DATE: 7/29/19 U FIELDBOOK: PAGE: O DRAWING NO: C5.8 `J SHEET. OF, 25 35