HomeMy WebLinkAbout006H_C-113 UNDERGROUND STORAGE DETAILSC-113UNDERGROUND STORAGEDETAILSProject Number:Drawn By:Reviewed By:Approved By:2200.049CJFMGHMGHGALLATIN COUNTYCOURTS615 SOUTH 16TH AVENUE,BOZEMAN, MONTANA, 597152200.049IssueDate08 JULY 2022CONSTRUCTION DOCUMENTSGALLATIN COUNTYGallatin County Commission311 West Main StreetBozeman, MT, 59715Telephone: 406-582-2300ThinkOne Architects101 E Main St. Studio 1Bozeman, MT, 59715T: 406-586-7020ArchitectAndersonMasonDale Architects, P.C.3198 Speer BoulevardDenver, CO 80211T: 303-294-9448Associate ArchitectMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Civil EngineerMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Structural EngineerMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Mechanical EngineerMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Plumbing EngineerMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Electrical Engineer11/9/2021 1:30:52 PM
engineers surveyors planners scientistsMorrisonMaierleDesign 5 Landscape Architecture111 North Tracy AvenueBozeman, MT 59715T: 406-587-4873Landscape Architect02 AUGUST 2022ADD-02Morrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Fire Protection EngineerMorrison-Maierle, Inc.2880 Technology Blvd.Bozeman, MT 59715T: 406-587-0721Technology Engineer26 OCTOBER 2022ADD-03NOT TO SCALESC-740 ISOLATOR ROWINSPECTION PORTNOT TO SCALESTORMTECH SC-740, TYPICAL SECTIONS, MATERIALS, AND INSTALLATION REQUIREMENTSACCEPTABLE FILL MATERIALS: STORMTECH SC-740 CHAMBER SYSTEMSPLEASE 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 FOR 'A' 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. FORSPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS.NOTES:1.SC-740 CHAMBERS SHALL CONFORM TO THE REQUIREMENTS OF ASTMF2418 "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP)CORRUGATED WALL STORMWATER COLLECTION CHAMBERS", ORASTM F2922 "STANDARD SPECIFICATION FOR POLYETHYLENE (PE)CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".2.SC-740 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTMF2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OFTHERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTIONCHAMBERS".3."ACCEPTABLE FILL MATERIALS" TABLE ABOVE PROVIDES MATERIALLOCATIONS, DESCRIPTIONS, GRADATIONS, AND COMPACTIONREQUIREMENTS FOR FOUNDATION, EMBEDMENT, AND FILL MATERIALS.4.THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THEBEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THESUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITHCONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURECONDITIONS.5.PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THEEXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATIONWALLS.6.ONCE LAYER 'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED INLAYER 'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASESOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OFLAYER 'C' OR 'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.MATERIAL LOCATIONDESCRIPTIONAASHTO MATERIALCLASSIFICATIONSCOMPACTION / DENSITYREQUIREMENTDFINAL FILL: FILL MATERIAL FOR LAYER 'D' STARTSFROM THE TOP OF THE 'C' LAYER TO THE BOTTOMOF FLEXIBLE PAVEMENT OR UNPAVED FINISHEDGRADE ABOVE. NOTE THAT PAVEMENT SUBBASEMAY BE PART OF THE 'D' LAYERANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PERENGINEER'S PLANS. CHECK PLANS FOR PAVEMENTSUBGRADE REQUIREMENTS.N/APREPARE PER SITE DESIGN ENGINEER'S PLANS.PAVED INSTALLATIONS MAY HAVE STRINGENTMATERIAL AND PREPARATION REQUIREMENTS.CINITIAL FILL: FILL MATERIAL FOR LAYER 'C'STARTS FROM THE TOP OF THE EMBEDMENTSTONE ('B' LAYER) TO 18" (450 mm) ABOVE THETOP OF THE CHAMBER. NOTE THAT PAVEMENTSUBBASE MAY BE A PART OF THE 'C' LAYER.GRANULAR WELL-GRADED SOIL/AGGREGATE MIXTURES, <35%FINES OR PROCESSED AGGREGATE. MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEUOF THIS LAYER.AASHTO M145¹A-1, A-2-4, A-3ORAASHTO M43¹3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89,9, 10BEGIN COMPACTIONS AFTER 12" (300 mm) OFMATERIAL OVER THE CHAMBERS IS REACHED.COMPACT ADDITIONAL LAYERS IN 6" (150 mm) MAXLIFTS TO A MIN. 95% PROCTOR DENSITY FORWELL GRADED MATERIAL AND 95% RELATIVEDENSITY FOR PROCESSED AGGREGATEMATERIALS. ROLLER GROSS VEHICLE WEIGHTNOT TO EXCEED 12,000 lbs (53 kN). DYNAMICFORCE NOT TO EXCEED 20,000 lbs (89 kN).BEMBEDMENT STONE: FILL SURROUNDING THECHAMBERS FROM THE FOUNDATION STONE ('A'LAYER) TO THE 'C' LAYER ABOVE.CLEAN, CRUSHED, ANGULAR STONEAASHTO M43¹3, 357, 4, 467, 5, 56, 57NO COMPACTION REQUIRED.AFOUNDATION STONE: FILL BELOW CHAMBERSFROM THE SUBGRADE UP TO THE FOOT (BOTTOM)OF THE CHAMBER.CLEAN, CRUSHED, ANGULAR STONEAASHTO M43¹3, 357, 4, 467, 5, 56, 57PLATE COMPACT OR ROLL TO ACHIEVE A FLATSURFACE. ² ³18"(450 mm) MIN*8'(2.4 m)MAXSUBGRADE SOILS(SEE NOTE 4)PAVEMENT LAYER (DESIGNEDBY SITE DESIGN ENGINEER)SC-740END CAP6" (150 mm) MINDCBAPERIMETER STONE(SEE NOTE 6)EXCAVATION WALL (CANBE SLOPED OR VERTICAL)12" (300 mm) MINADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE ALLAROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS12" (300 mm) MIN51" (1295 mm)6"(150 mm) MIN30"(760 mm)DEPTH OF STONE PERPLAN*TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVEDINSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,INCREASE COVER TO 24" (600 mm).SUMP DEPTH TBD BYSITE DESIGN ENGINEER(24" [600 mm] MINRECOMMENDED)24" (600 mm) HDPE ACCESS PIPE REQUIREDUSE FACTORY PRE-FABRICATED END CAPPART #: SC740EPE24BTWO LAYERS OF ADS GEOSYNTHETICS315WTK WOVEN GEOTEXTILE BETWEENFOUNDATION STONE AND CHAMBERS5' (1.5 m) MIN WIDE CONTINUOUS FABRICWITHOUT SEAMSCATCH BASINORMANHOLECOVER ENTIRE ISOLATOR ROW WITH ADSGEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE8' (2.4 m) MIN WIDESC-740 CHAMBERSC-740 END CAPINSPECTION PORT,LOCATION PER PLANSTORMTECH HIGHLYRECOMMENDS FLEXSTORM PUREINSERTS IN ANY UPSTREAMSTRUCTURES WITH OPEN GRATESSC-740 CHAMBERFLEXSTORM CATCH ITPART# 6212NYFXWITH USE OF OPEN GRATE12" (300 mm) NYLOPLAST INLINEDRAIN BODY W/SOLID HINGEDCOVER OR GRATEPART# 2712AG6IP*SOLID COVER: 1299CGC*GRATE: 1299CGS6" (150 mm) INSERTA TEEPART# 6P26FBSTIP*INSERTA TEE TO BE CENTEREDON CORRUGATION CREST6" (150 mm) SDR35 PIPE18" (450 mm) MIN WIDTHCONCRETE SLAB8" (200 mm) MIN THICKNESSPAVEMENTCONCRETE COLLAR NOT REQUIREDFOR UNPAVED APPLICATIONSCONCRETE COLLAR* THE PART# 2712AG6IPKIT CAN BEUSED TO ORDER ALL NECESSARYCOMPONENTS FOR A SOLID LIDINSPECTION PORT INSTALLATIONAABBSECTION A-ASECTION B-BNUMBER AND SIZE OF UNDERDRAINS PER SITE DESIGN ENGINEER4" (100 mm) TYP FOR SC-310 & SC-160LP SYSTEMS6" (150 mm) TYP FOR SC-740, DC-780, MC-3500 & MC-4500 SYSTEMSOUTLET MANIFOLDSTORMTECHEND CAPSTORMTECHCHAMBERSSTORMTECHCHAMBERSTORMTECHEND CAPDUAL WALLPERFORATEDHDPEUNDERDRAINADS GEOSYNTHETICS 601TNON-WOVEN GEOTEXTILEADS GEOSYNTHETICS 601TNON-WOVEN GEOTEXTILEFOUNDATION STONEBENEATH CHAMBERSFOUNDATION STONEBENEATH CHAMBERSNOT TO SCALEUNDERDRAINIMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF THESC-310/SC-740 SYSTEM1.STORMTECH SC-310 & SC-740 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'SREPRESENTATIVE HAS COMPLETED A PRE-CONSTRUCTION MEETING WITH THE INSTALLERS.2.STORMTECH SC-310 & SC-740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE"STORMTECH SC-310/SC-740/SC-780 CONSTRUCTION GUIDE".3.CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR AN EXCAVATOR SITUATED OVER THECHAMBERS.STORMTECH RECOMMENDS 3 BACKFILL METHODS:·STONESHOOTER LOCATED OFF THE CHAMBER BED.·BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE ORSUBGRADE.·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 STONE3/4-2" (20-50 mm).8.THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIALSBEARING CAPACITIES TO THE SITE DESIGN ENGINEER.9.ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT" INSERTS DURING CONSTRUCTION FOR ALLINLETS TO PROTECT THE SUBSURFACE STORMWATER MANAGEMENT SYSTEM FROMCONSTRUCTION SITE RUNOFF.NOTES FOR CONSTRUCTION EQUIPMENT1.STORMTECH SC-310 & SC-740 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE"STORMTECH SC-310/SC-740/DC-780 CONSTRUCTION GUIDE".2.THE USE OF CONSTRUCTION EQUIPMENT OVER SC-310 & SC-740 CHAMBERS IS LIMITED:·NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS.·NO RUBBER TIRED LOADERS, DUMP TRUCKS, OR EXCAVATORS ARE ALLOWED UNTIL PROPERFILL DEPTHS ARE REACHED IN ACCORDANCE WITH THE "STORMTECH SC-310/SC-740/DC-780CONSTRUCTION GUIDE".·WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECHSC-310/SC-740/DC-780 CONSTRUCTION GUIDE".3.FULL 36" (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FORDUMP TRUCK TRAVEL OR DUMPING.USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSEDAMAGE TO THE CHAMBERS AND IS NOT AN ACCEPTABLE BACKFILL METHOD. ANY CHAMBERSDAMAGED BY THE "DUMP AND PUSH" METHOD ARE NOT COVERED UNDER THE STORMTECH STANDARDWARRANTY.CONTACT STORMTECH AT 1-888-892-2694 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS ORWEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT.