Loading...
HomeMy WebLinkAbout35_CD103 SITE DETAILS 09-03-2019D R A W N B Y | R E V I S I O N S © | A L L R I G H T S R E S E R V E D ® w w w . c t a g r o u p . c o m 8 0 0 . 7 5 7 . 9 5 2 2 C H E C K E D B Y | BOZEMAN HIGH SCHOOL BOZEMAN, MONTANA 205 NORTH 11TH AVE. C I T Y S I T E P L A N S E T 1 . 1 5 . 2 0 1 9 2 0 1 9 406.586.0277 • tdhengineering.com Engineering 234 E. BABCOCK ST., SUITE 3 • BOZEMAN, MONTANA 59715 A N L E F N E S S I O N GI T O N M A N EER A O P R 2 C O B 2 - 0 9 / 0 3 / 1 9 C D 1 0 3 S I T E D E T A I L S C J C INSPECTION & MAINTENANCESTEP 1)INSPECT ISOLATOR ROW FOR SEDIMENTA.INSPECTION PORTS (IF PRESENT)A.1.REMOVE/OPEN LID ON NYLOPLAST INLINE DRAINA.2.REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLEDA.3.USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORDON MAINTENANCE LOGA.4.LOWER A CAMERA INTO ISOLATOR ROW FOR VISUAL INSPECTION OF SEDIMENTLEVELS (OPTIONAL)A.5.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TOSTEP 3.B.ALL ISOLATOR ROWSB.1.REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROWB.2.USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPEi)MIRRORS ON POLES OR CAMERAS MAY BE USED TO AVOID A CONFINED SPACEENTRYii)FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLEB.3.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TOSTEP 3.STEP 2)CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESSA.A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MOREIS PREFERREDB.APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEANC.VACUUM STRUCTURE SUMP AS REQUIREDSTEP 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.NOTES1.INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTIONINTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATERELEVATIONS.2.CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THATMAINTENANCE IS NECESSARY.(24" MIN RECOMMENDED)CATCH BASINOR MANHOLESC-740 ISOLATOR ROW D E T A I L NTS 2 4 " H D P E A C C E S S P I P E I N S P E C T I O N P O R T SC-740 CHAMBER COVER ENTIRE ISOLATOR ROW WITHADS GEOSYNTHETICS 601TNON-WOVEN GEOTEXTILE8' (2.4 m) MIN WIDESTORMTECH HIGHLYRECOMMENDS FLEXSTORM PUREINSERTS IN ANY UPSTREAMSTRUCTURES WITH OPEN GRATES24" HDPE ACCESS PIPE T W O L A Y E R S O F A D S G E O S Y N T H E T I C S 3 1 5 W T K W O V E N G E O T E X T I L E B E T W E E N F O U N D A T I O N S T O N E A N D C H A M B E R S 5 ' ( 1 . 5 m ) M I N W I D E C O N T I N U O U S F A B R I C W I T H O U T S E A M S ELEVATED BYPASS MANIFOLD S C - 7 4 0 6 " I N S P E C T I O N P O R T D E T A I L N T S 1 8 " ( 4 5 0 m m ) M I N W I D T H CONCRETE SLA B 8" (200 mm) MIN THIC K N E S S * T H E P A R T # 2 7 1 2 A G 6 I P K I T C A N B E U S E D T O O R D E R A L L N E C E S S A R Y C O M P O N E N T S F O R A S O L I D L I D I N S P E C T I O N P O R T I N S T A L L A T I O N 6" (150 mm) INSERTA T E E PART# 6P26FB S T I P * INSERTA TEE T O B E CENTERE D O N CORRUGATION C R E S T FLEXSTORM CAT C H I T PART# 6212 N Y F X WITH USE OF OPEN G R A T E PAVE M E N T CONCRETE CO L L A R C O N C R E T E C O L L A R N O T R E Q U I R E D F O R U N P A V E D A P P L I C A T I O N S 1 2 " ( 3 0 0 m m ) N Y L O P L A S T I N L I N E D R A I N B O D Y W / S O L I D H I N G E D C O V E R O R G R A T E P A R T # 2 7 1 2 A G 6 I P * S O L I D C O V E R : 1 2 9 9 C G C * G R A T E : 1 2 9 9 C G S 6 " ( 1 5 0 m m ) S D R 3 5 P I P E S C - 7 4 0 C H A M B E R STORMTECH® RETENTION CHAMB E R D E T A I L SURROUND STRUCTURE WITH 6" MIN. CRUSHED GRAVEL.EXCAVATE AND EXTEND FOUNDATION STONE BELOW STRUCTUREAS NECESSARY TO TIE INTO NATIVE GRAVEL T Y P . D R Y W E L L D E T A I L D O U B L E I N L E T & D O U B L E M H / I N L E T 2 C D 1 0 3 4 C D 1 0 3 3 C D 1 0 3 PEDESTRIAN B R I D G E X - S E C T I O N 1 C D 1 0 3