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HomeMy WebLinkAboutR-435425UD L"J I O `W 1 PROJECT INFORMATION ENGINEERED DENNIS HURT PRODUCT 206-747-8301 MANAGER: DENNIS.HURT@ADSPIPE.COM CHARLIE CLICK ADS SALES REP: 360450-1932 CHARLIE.CLICK@ADSPIPE.COM PROJECT NO: IS457267 //PENS Advanced Drainage Systems, Inc. FIRE STATION 16 RENTOK WA SC-800 STORMTECH CHAMBER SPECIFICATIONS 1. CHAMBERS SHALL BE STORMTECH SC-800. 2. CHAMBERS SHALL BE ARCH -SHAPED AND SHALL BE MANUFACTURED FROM VIRGIN, IMPACT -MODIFIED POLYPROPYLENE COPOLYMERS. 3. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 4. CHAMBER ROWS SHALL PROVIDE CONTINUOUS, UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL SUPPORTS THAT WOULD IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION. 5. THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION REQUIREMENTS SHALL ENSURE THAT THE LOAD FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1) LONG -DURATION DEAD LOADS AND 2) SHORT -DURATION LIVE LOADS, BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION FOR IMPACT AND MULTIPLE VEHICLE PRESENCES. 6. CHAMBERS SHALL BE DESIGNED AND ALLOWABLE LOAD CONFIGURATIONS DETERMINED IN ACCORDANCE WITH ASTM F2787, "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". LOAD CONFIGURATIONS SHALL INCLUDE: 1) INSTANTANEOUS (<1 MIN) AASHTO DESIGN TRUCK LIVE LOAD ON MINIMUM COVER 2) MAXIMUM PERMANENT (75-YR) COVER LOAD AND 3) ALLOWABLE COVER WITH PARKED (1-WEEK) AASHTO DESIGN TRUCK. 7. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 2". • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT SHALL BE GREATER THAN OR EQUAL TO 550 LBS/FT/%. THE ASC IS DEFINED IN SECTION 6.2.8 OF ASTM F2418. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. 8. ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. UPON REQUEST BY THE SITE DESIGN ENGINEER OR OWNER, THE CHAMBER MANUFACTURER SHALL SUBMIT A STRUCTURAL EVALUATION FOR APPROVAL BEFORE DELIVERING CHAMBERS TO THE PROJECT SITE AS FOLLOWS: • THE STRUCTURAL EVALUATION SHALL BE SEALED BY A REGISTERED PROFESSIONAL ENGINEER. • THE STRUCTURAL EVALUATION SHALL DEMONSTRATE THAT THE SAFETY FACTORS ARE GREATER THAN OR EQUAL TO 1.95 FOR DEAD LOAD AND 1.75 FOR LIVE LOAD, THE MINIMUM REQUIRED BY ASTM F2787 AND BY SECTIONS 3 AND 12.12 OF THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS FOR THERMOPLASTIC PIPE. • THE TEST DERIVED CREEP MODULUS AS SPECIFIED IN ASTM F2418 SHALL BE USED FOR PERMANENT DEAD LOAD DESIGN EXCEPT THAT IT SHALL BE THE 75-YEAR MODULUS USED FOR DESIGN. 9. CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN ISO 9001 CERTIFIED MANUFACTURING FACILITY. 10. MANIFOLD SIZE TO BE DETERMINED BY SITE DESIGN ENGINEER. SEE TECHNICAL NOTE 6.32 FOR MANIFOLD SIZING GUIDANCE. DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD. 11. ADS DOES NOT DESIGN OR PROVIDE MEMBRANE LINER SYSTEMS. TO MINIMIZE THE LEAKAGE POTENTIAL OF LINER SYSTEMS, THE MEMBRANE LINER SYSTEM SHOULD BE DESIGNED BY A KNOWLEDGEABLE GEOTEXTILE PROFESSIONAL AND INSTALLED BY A QUALIFIED CONTRACTOR. ©2025 ADS, INC. U SiteAssist FOR STORMTECH INSTALLATION INSTRUCTIONS VISIT OUR WEBSITE .� IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF THE SC-800 SYSTEM 1. STORMTECH SC-800 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S REPRESENTATIVE HAS COMPLETED A PRE -CONSTRUCTION MEETING WITH THE INSTALLERS. 2. STORMTECH SC-800 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/SC-800/DC-780 CONSTRUCTION GUIDE". 3. CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR AN EXCAVATOR SITUATED OVER THE CHAMBERS. STORMTECH RECOMMENDS 3 BACKFILL METHODS: • STONESHOOTER LOCATED OFF THE CHAMBER BED. • BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE OR SUBGRADE. • BACKFILL FROM OUTSIDE THE EXCAVATION USING A LONG BOOM HOE OR EXCAVATOR. 4. THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACING CHAMBERS. 5. JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE. 6. MAINTAIN MINIMUM - 6" (150 mm) SPACING BETWEEN THE CHAMBER ROWS. 7. EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN, CRUSHED, ANGULAR STONE OR RECYCLED CONCRETE; AASHTO M43 #3, 357, 4, 467, 5, 56, OR 57. 8. THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIALS BEARING CAPACITIES TO THE SITE DESIGN ENGINEER. 9. ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT" INSERTS DURING CONSTRUCTION FOR ALL INLETS TO PROTECT THE SUBSURFACE STORMWATER MANAGEMENT SYSTEM FROM CONSTRUCTION SITE RUNOFF. NOTES FOR CONSTRUCTION EQUIPMENT 1. STORMTECH SC-800 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/SC-800/DC-780 CONSTRUCTION GUIDE". 2. THE USE OF CONSTRUCTION EQUIPMENT OVER SC-800 CHAMBERS IS LIMITED: • NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS. • NO RUBBER TIRED LOADERS, DUMP TRUCKS, OR EXCAVATORS ARE ALLOWED UNTIL PROPER FILL DEPTHS ARE REACHED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/SC-800/DC-780 CONSTRUCTION GUIDE". • WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECH SC-310/SC-740/SC-800/DC-780 CONSTRUCTION GUIDE". 3. FULL 36" (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP TRUCK TRAVEL OR DUMPING. USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO THE CHAMBERS AND IS NOT AN ACCEPTABLE BACKFILL METHOD. ANY CHAMBERS DAMAGED BY THE "DUMP AND PUSH" METHOD ARE NOT COVERED UNDER THE STORMTECH STANDARD WARRANTY. CONTACT STORMTECH AT 1-800-821-6710 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS OR WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT. ACCEPTABLE FILL MATERIALS: STORMTECH SC-800 CHAMBER SYSTEMS MATERIAL LOCATION DESCRIPTION AASHTO MATERIAL CLASSIFICATIONS FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE TOP OF THE 'C' LAYER TO THE BOTTOM OF FLEXIBLE ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S N/A PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE PLANS. CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS. THAT PAVEMENT SUBBASE MAY BE PART OF THE'D' LAYER. NTS ADS SC-800 STORMTECH SYSTEM - SHEET 1 COMPACTION / DENSITY REQUIREMENT PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND PREPARATION REQUIREMENTS. AASHTO M145' BEGIN COMPACTIONS AFTER 12" (300 mm) OF MATERIAL GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM A-1, A-2-4, A-3 OVER THE CHAMBERS IS REACHED. COMPACT ADDITIONAL FINES OR PROCESSED AGGREGATE. THE TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 15" (375 LAYERS IN 6" (150 mm) MAX LIFTS TO A MIN. 95% PROCTOR C OR DENSITY FOR WELL GRADED MATERIAL AND 95% RELATIVE mm) ABOVE THE TOP OF THE CHAMBER. NOTE THAT MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF DENSITY FOR PROCESSED AGGREGATE MATERIALS. ROLLER PAVEMENT SUBBASE MAY BE A PART OF THE 'C' LAYER. THIS LAYER. AASHTO M43' GROSS VEHICLE WEIGHT NOT TO EXCEED 12,000 Ibs (53 kN). 3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10 DYNAMIC FORCE NOT TO EXCEED 20,000 Ibs (89 kN). EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS , B FROM THE FOUNDATION STONE (W LAYER) TO THE 'C' LAYER CLEAN, CRUSHED, ANGULAR STONE OR RECYCLED CONCRETES NO COMPACTION REQUIRED. ABOVE. 3, 357A4,H46O, 5456, 57 A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE CLEAN, CRUSHED, ANGULAR STONE OR RECYCLED CONCRETES AASHTO M43' PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE.2,3 SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER. 3, 357, 4, 467, 5, 56, 57 PLEASE NOTE: 1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN CRUSHED ANGULAR. FOR EXAMPLE A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN CRUSHED ANGULAR NO. 4 AASHTO M43 STONE". 2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 6" (150 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR. 3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS. 4. ONCE LAYER'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR'D' AT THE SITE DESIGN ENGINEER'S DISCRETION. 5. WHERE RECYCLED CONCRETE AGGREGATE IS USED IN LAYERS'A' OR'B' THE MATERIAL SHOULD ALSO MEET THE ACCEPTABILITY CRITERIA OUTLINED IN TECHNICAL NOTE 6.20 "RECYCLED CONCRETE STRUCTURAL BACKFILL". ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS 7\, PAVEMENT LAYER (DESIGNED BY SITE DESIGN ENGINEER) PERIMETER STONE ?O BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED INSTALLATIONS WHERE RUTTING 8 (SEE NOTE 4) \ \ (�, FROM VEHICLES MAY OCCUR, INCREASE COVER TO 21" (525 mm). 15" + 375 MIN' (2.4 m) MAX EXCAVATION WALL (CAN BE SLOPED OR VERTICAL) 12" (300 mm) MIN SC-800 END CAI SUBGRADE SOILS (SEE NOTE 3) (150 mm) MIN ( mm) 6" (150 mm) MIN 1 33" � (838 mm) "THIS CROSS SECTION DETAIL REPRESENTS MINIMUM REQUIREMENTS FOR INSTALLATION. — PLEASE SEE THE LAYOUT SHEET(S) FOR PROJECT SPECIFIC REQUIREMENTS. 6" (150 mm) MIN (SEE NOTE 3) 51" (1295 mm) 12" (300 mm) MIN NOTES: 1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 2. SC-800 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS. REFERENCE STORMTECH DESIGN MANUAL FOR BEARING CAPACITY GUIDANCE. 4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS. 5. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 2". • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 550 LBS/FT/%. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. wN w �-w rM 0 0 0C z Q z Y °a O Q w �o Q p oa OZ H LO oo-° W W N r 00 co u0 m N Z N UL N N3 i£ w o H U w Lij w Z � Q z� zw mE Z !3 ° O pUfgJ U Z ILp w 0 2 z U�� U Z W Z ° o ir o a O z �o wU 0 00 0 K a = o.0 z 0. U w O2- on o w go � w K =2 zw 0 F0 U U w� U w. w FS 0 t 0 P (n U dE� w� F o� zi ` F O L O w, 0 E cq N �a .fir ca 8 N 5 C? �o o� oz 0 >o J o wm m M zOO Z FO w Oz D p z3 Q� Z� a 0, O J wN (o J �w a Z w m0 y 3� 00 Z� oo wo 1w SHEET 3 of 6 NTS ADS SC-800 STORMTECH SYSTEM - SHEET 3 3 PROPOSED LAYOUT 48 STORMTECH SC-800 CHAMBERS 12 STORMTECH SC-800 END CAPS 6 STONE ABOVE (in) 6 STONE BELOW (in) 40 % STONE VOID 4,728 INSTALLED SYSTEM VOLUME (CF) (PERIMETER STONE INCLUDED) 2164 SYSTEM AREA (ft2) 202 SYSTEM PERIMETER (ft) PROPOSED ELEVATIONS 537.25 MAXIMUM ALLOWABLE GRADE (TOP OF PAVEMENT/UNPAVED) 531.00 MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC) 530.50 MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC) 530.50 MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT) 530.50 MINIMUM ALLOWABLE GRADE (TOP OF RIGID PAVEMENT) 529.75 TOP OF STONE 529.25 TOP OF SC-800 CHAMBER 527.70 12" TOP MANIFOLD/CONNECTION INVERT 526.69 24" ISOLATOR ROW PLUS CONNECTION INVERT 526.63 12" BOTTOM MANIFOLD/CONNECTION INVERT 526.50 BOTTOM OF SC-800 CHAMBER 526.00 UNDERDRAIN INVERT 526.00 BOTTOM OF STONE 0 0 r o O 06 M N 30" NYLOPLAST BASIN PER PLAN W/ELEVATED BYPASS MANIFOLD MAXIMUM INLET FLOW 5.8 CFS (24" SUMP MIN) 12" X 12" ADS N-12 TOP MANIFOLD INVERT 14.4" ABOVE CHAMBER BASE ISOLATOR ROW PLUS (SEE DETAIL) PLACE MINIMUM 12.5' OF ADSPLUS625 WOVEN GEOTEXTILE OVER BEDDING STONE AND UNDERNEATH CHAMBER FEET FOR SCOUR PROTECTION AT ALL CHAMBER INLET ROWS — BED LIMITS STORMTECH HIGHLY RECOMMENDS FLEXSTORM INSERTS IN ANY UPSTREAM STRUCTURES WITH OPEN GRATES ELEVATED BYPASS MANIFOLD ■ SUMP DEPTH TBD BY SITE DESIGN ENGINEER NYLOPLAST (24" [600 mm] MIN RECOMMENDED) INSPECTION & MAINTENANCE STEP 1) INSPECT ISOLATOR ROW PLUS FOR SEDIMENT NOTES • THE SITE DESIGN ENGINEER MUST REVIEW ELEVATIONS AND IF NECESSARY ADJUST GRADING TO ENSURE THE CHAMBER COVER REQUIREMENTS ARE MET. • THIS PLAN REFLECTS THE CHAMBER SYSTEM DESIGN BY THE SITE DESIGN ENGINEER USING STORMTECH COMPONENTS. THE SUITABILITY OF THE CHAMBER SYSTEM TO MEET ANY FUNCTIONAL REQUIREMENTS ARE THE RESPONSIBILITY OF THE SITE DESIGN ENGINEER. STORMTECH'S SCOPE OF WORK IS LIMITED TO THE ASSEMBLED PRODUCT DIMENSIONS AND SPECIFICATIONS FOR INSTALLATION. 70.48' 58.68' 6" ADS N-12 DUAL WALL PERFORATED HOPE UNDERDRAIN (SIZE TBD BY ENGINEER / SOLID OUTSIDE PERIMETER STONE) 24" PRE -CORED END CAP, PART# SC800EPE24BPC TYP OF ALL SC-800 24" CONNECTIONS & 24" ISOLATOR ROW PLUS CONNECTIONS ISOLATOR ROW SEE DETAIL 4 INSTALL FLAMP ON 24" ACCESS PIPE PART#SC74024RAMP (TYP 2 PLACES) 12" ADS N-12 BOTTOM CONNECTION INVERT 1.6" ABOVE CHAMBER BASE OUTLET STRUCTURE PER PLAN SHOWN AS 30" NYLOPLAST BASIN MAXIMUM OUTLET FLOW 2.0 CFS (DESIGN BY ENGINEER) INSTALL FLAMP ON 24" (600 mm) ACESS PIPE PART* SC74024RAMP SC-800 CHAMBER 24" (600 mm) HDPE ACCESS PIPE REQUIRED USE END CAP PART #: SC800EPE24BPC SC-800 ISOLATOR ROW PLUS DETAIL NTS A. INSPECTION PORTS (IF PRESENT) A. 1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG A.A. LOWER A CAMERA INTO ISOLATOR ROW PLUS FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL) A.5. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. B. ALL ISOLATOR PLUS ROWS B. 1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW PLUS B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS THROUGH OUTLET PIPE i) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY ii) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. STEP 2) CLEAN OUT ISOLATOR ROW PLUS USING THE JETVAC PROCESS A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN C. VACUUM STRUCTURE SUMP AS REQUIRED STEP 3) REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS. STEP 4) INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. NOTES 1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS. 2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY. 30" NYLOPLAST BASIN PER PLAN W/ELEVATED BYPASS MANIFOLD MAXIMUM INLET FLOW 5.8 CFS (24" SUMP MIN) 12" X 12" ADS N-12 TOP MANIFOLD INVERT 14.4" ABOVE CHAMBER BASE m ON w� ww w w 0 0 os z Q z W .15O C)w �a H z o 16 O L ? o00 w W N n 00 0_ co uT m N IX NZ 7 U1 LL � g oW H U ° w Z a °� I zw zN g 00 w o z z f 00 a r Z ° w 0 U 2a ao w10 a ° o2 wa 0 U � r z W � U G � w z 00 Ow wR wO zW ow wF 0 m O to L) zm U w �8 W ® It � _ OW v0Li E . °Li (, w € (n I I• N _ mN o oz ) � Z,o L CU `9 U o o H 0 0?2Q 00 wo C) pz (0 N 09 J NO w m m M Z� Z Ro Q =w wO o0 LL Z Q Z 3 0 H Q 0, O J wN (D J_ w a z mw C�- zo \ m \ O o 0 .o �w SHEET 2 of 6 ADS SC-800 STORMTECH SYSTEM - SHEETNTS 2 2 KI SC-800 END CAP __25 WOVEN GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS 5' (1.5 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS O�w ww �-w w w I-M a a oD z Q z w °a O S U � w ma C) a F_ O LID16 OR W w N n '00.� � mm N � N U) Zv LL g ow U °� w UJ za Q w� Z. D2 Z� H 00 o 2 O Z z 0 a Z N 20 w -U ° 2a a8 fU a ° 02 Ow U K r Z W F 8 w z ~ w O 00 a wF wW O z Ow z 0 ma O w� _ zm U z W w22 ® zIY U ok U 2 ci E 3: s� `d T o o f Z,O L � w ♦Oil N cq C, y C $ o�o� 0 oz o so 09 J o R. m M OpwO Z 0 a = gw 20 o0 � p z� zg F- Q 0, o O :i (o J w w z m0 w zo \ o� wo �w SHEET 4 of 6 NTS ADS SC-800 STORMTECH SYSTEM - SHEET 4 IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ARCHITECTURE + PLANNING + DESIGN 6211 ROOSEVELT WAY NORTHEAST SEATTLE, WA 98115 tel: (206) 522-3830 fax: (206) 522-2456 1932 First Ave Suite 500 Seattle, WA 98101 p. 206.725.1211 f. 206.973.5344 engineering pllc WWW•Ipdengine rTxl4 t'J co �MM O O 0 lql- Q Z) J PERMIT RESUBMITTAL No. Description Date: 6 City Comments 8/21/2025 Project Title: o Z LV 2 OQ _ Z a Q0 Z W Q Z ,,, LU z Z O Z w LV Z o H W U. Sheet Title: GRADING AND DRAINAGE DETAILS Scale: As indicated Project No.: 21-12 Date : 08/21 /2025 Sheet Number: Cm2l 0 R-435425