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Home My WebLink AboutC601 STORM SEWER DETAILSC601STORM SEWER DETAILSw190175-C602 drainage detREQUIREMENTS FOR ALL STORM SEWER BENCHWALLS BENCH WALLS SHALL BE SHAPED AND FORMED FOR A CLEAN TRANSITION WITH PROPER HYDRAULICS TO ALLOW THE SMOOTH CONVEYANCE OF FLOWS THROUGH THE MANHOLE OR BOX INLET. THE BENCH WALL SHALL FORM A DEFINED CHANNEL, TO A MINIMUM HEIGHT OF 80-PERCENT OF THE INSIDE DIAMETER OF THE INLET AND OUTLET PIPES TO FORM A "U" SHAPED CHANNEL, CONSTRUCTED AT A MINIMUM ½-INCH PER FOOT SLOPE TO THE MANHOLE WALL. WHERE A FLOW CHANNEL IS CONSTRUCTED AS AN INTEGRAL PART OF THE PRE-CAST BASE, IT SHALL BE SHAPED AND FORMED AS DESCRIBED ABOVE, WITH THE EXCEPTION THAT THE BOTTOM OF THE FLOW CHANNEL MAY BE FORMED FROM THE BOTTOM OF INLET AND OUTLET PIPES IF THE PIPE WALL THICKNESS IS NOT GREATER THAN ONE (1) INCH. FOR CAST-IN-PLACE FLOW CHANNELS, THE BOTTOM INVERT OF ALL PIPES ENTERING A MANHOLE SHALL BE AT LEAST THREE (3) INCHES ABOVE THE TOP OF THE BASE SLAB TO THE OUTLET INVERT SO THE FINISHED SEWER CHANNEL MAY BE INSTALLED AND SHAPED. FOR CONNECTIONS TO EXISTING STORM SEWER STRUCTURES, FLOW CHANNELS SHALL BE SHAPED, AS SPECIFIED HEREIN, AS IF IT WERE A NEW MANHOLE OR BOX INLET STRUCTURE. SPECIFICATIONS FOR ALL STORM SEWER CASTINGS ALL STORM WATER INLETS AND CATCH BASINS SHALL HAVE THE WORDS "NO DUMPING, DRAINS TO STREAM", OR SIMILARLY APPROVED MESSAGE, CAST IN RAISED OR RECESSED LETTERS AT A MINIMUM OF 1" IN HEIGHT. IN ADDITION, A SYMBOL OF A FISH SHALL ALSO BE CAST WITH THE LETTERS. (2) "B" BORROW OR EQUIV. GRANULAR MATERIAL COMPACTED TO 95% STANDARD PROCTOR DENSITY #8 CRUSHED STONE OR APPROVED EQUIV. CLASS I BEDDING MATERIAL HAND TAMPED OR WALKED INTO PLACE TYPICAL BEDDING SECTION - PVC & HDPE (NO SCALE)4"Bc = OUTSIDE DIAMETER D = INSIDE DIAMETER D = DEPTH OF BEDDING MATERIAL BELOW PIPE (1) REGULAR BACKFILL GREATER THAN 5' (1) EDGE OF PAVEMENT, CURB, GUTTER OR SIMILAR STRUCTURE IN THE PUBLIC RIGHT-OF-WAY LESS THAN 5' (2) 1.25 Bc + 12" (MIN.) MIN. 6" TOPSOIL TO ENSURE GRASS GROWTH IF NOT UNDER PAVEMENT 12" MIN.Bc NOTES: 1. ALL BEDDING & INITIAL BACKFILL SHALL BE INSTALLED IN 6" TO 12" BALANCED LIFTS 2. A MIN. 9" CLEARANCE SHALL BE PROVIDED ON EACH SIDE OF THE INSTALLED PIPE RUSSELL L . W EBST E R I I PR O FESSION A L E N GINEERREG IS T ER E DIND I A N A PE11900318 STATE OF NO.REVISIONS AND ISSUESPart of the NW/4 of Section 26, Township 18 North, Range 3 East, Clay Township, Hamilton County, IndianaW19.0175PREPARED FOR:13285 ILLINOIS ST. CARMEL, IN 46032PROJECT NO. SHEET NO.CHECKED BY:DRAWN BY:RLWDESIGNED BY:DWG NAME:PROJECT NO.:W19.0175DATEBY11.13.2019SSRDATE:RLWSAAMRAJYA, LLCPLANS SUBMITTED FOR REVIEW05.15.2019RLWENGINEERS317 | 846 - 6611800 | 452 - 6408317 | 843 - 0546 faxWEIHELand Surveying | Civil EngineeringLandscape ArchitectureALLAN H. WEIHE, P.E., L.S. - FOUNDER10505 N. College AvenueIndianapolis, Indiana 46280weihe.netBuild with confidence.SMRUSSELL L. WEBSTER II, PE No. 11900318PLANS REVISED FOR TAC COMMENTS05.15.2019RLWPLANS REVISED FOR TAC COMMENTS11.13.2019RLWAPPROVAL PENDINGNOT F OR C O NSTR UCTI O N OUTLET EROSION CONTROL PROTECTION DRAIN PIPE WITH FLAIRED END SECTION DEPTH OF RIP-RAP AS INDICATED ON PLAN 12" MINIMUM AW= FEETGEOTEXTILE FABRIC OR WELL GRADED AGGREGATE AT= FEET AL= APRON LENGTH AT= APRON THICKNESS AW= APRON WIDTH STONE PLACED AROUND END OF DRAIN PIPE TO PREVENT SLOPE EROSION AND UNDERCUTTING OF THE PIPE ENERGY DISSIPATER (OUTLET PROTECTION) 1.DIVERT SURFACE WATER RUNOFF AROUND THE STRUCTURE DURING CONSTRUCTION SO THAT THE SITE CAN BE PROPERLY DEWATERED FOR FOUNDATION PREPARATION. 2.EXCAVATE FOUNDATION AND APRON AREA SUBGRADES BELOW DESIGN ELEVATION TO ALLOW FOR THICKNESS OF THE FILTER MEDIUM AND RIPRAP. 3.COMPACT ANY FILL USED IN SUBGRADE PREPARATION TO THE DENSITY OF SURROUNDING UNDISTURBED SOIL MATERIAL. 4.SMOOTH SUBGRADE ENOUGH TO PROTECT GEOTEXTILE FABRIC FROM TEARING. 5.PLACE GEOTEXTILE FABRIC OR AGGREGATE BEDDING MATERIAL (FOR STABILIZATION AND FILTRATION) ON THE COMPACTED AND SMOOTHED FOUNDATION. 6.INSTALL RIPRAP TO THE LINES AND ELEVATIONS SHOWN IN THE CONSTRUCTION PLANS. BLEND RIPRAP SMOOTHLY TO SURROUNDING GRADE. IF THE CHANNEL IS WELL DEFINED, EXTEND THE APRON ACROSS THE CHANNEL BOTTOM AND UP THE CHANNEL BANKS TO AN ELEVATION OF SIX INCHES ABOVE THE MAXIMUM TAILWATER DEPTH OR TO THE TOP OF THE BANK, WHICHEVER IS LESS. 7.IF GEOTEXTILE FABRIC TEARS WHEN PLACING RIPRAP, REPAIR IMMEDIATELY BY LAYING AND STAPLING A PIECE OF FABRIC OVER DAMAGED AREA, OVERLAPPING THE UNDAMAGED AREAS BY AT LEAST 12 INCHES. 8.CONSTRUCT A SMALL PLUNGE POOL WITHIN THE OUTLET APRON. (RIPRAP APRONS MUST BE LEVEL WITH OR SLIGHTLY LOWER THAN THE RECEIVING CHANNEL AND SHOULD NOT PRODUCE AN OVERFALL OR RESTRICT FLOW OF THE WATER CONVEYANCE STRUCTURE.) MAINTENANCE _ INSPECT WITHIN 24 HOURS OF A RAIN EVENT AND AT LEAST ONCE EVERY SEVEN CALENDAR DAYS. _ INSPECT FOR STONE DISPLACEMENT; REPLACE STONES ENSURING PLACEMENT AT FINISHED GRADE. _ CHECK FOR EROSION OR SCOURING AROUND SIDES OF THE APRON; REPAIR IMMEDIATELY. _ CHECK FOR PIPING OR UNDERCUTTING; REPAIR IMMEDIATELY. REFERENCE IN CHAPTER 7 PAGE 121 IN THE INDIANA STORM WATER QUALITY MANUAL AT=1.5' X D50 15" OR LESS, 1.2' X D50 15" OR LARGER STONE. PIPE SIZE (D50) (NO SCALE) AVERAGE RIPRAP DIAMETER APRON WIDTH APRON LENGTH 8 IN. 12 IN. 18 IN. 24 IN. 30 IN. 36 IN.14 IN. 12 IN. 10 IN. 8 IN. 5 IN. 3 IN.2 TO 3 FEET 3 TO 4 FEET 4 TO 6 FEET 6 TO 8 FEET 8 TO 10 FEET 10 TO 12 FEET 16 TO 32 FEET 14 TO 28 FEET 12 TO 22 FEET 8 TO 18 FEET 6 TO 12 FEET 5 TO 7 FEET SIDE AL= FEET DITCH BED PLAN AL= FEET RIP-RAP DIA.DIA.DIA.TABLE 1. SIZING FOR FLOW DISSIPATERS AT CULVERT PIPE OUTLETS SUB-SURFACE UNDERDRAIN TILE SECTION 18" MIN.12" TRENCH · · · · · · · · · · · EXISTING POND CROSS SECTION WITH NATIVE PLANTINGS SEED MIX (NO SCALE) PAVED AREA DRAINAGE INLET (NO SCALE) 10" HDPE STORM SEWER NATIVE PLANTINGS SIGN PERMANENT SIGNS SIZE: MINIMUM OF ONE SQUARE FOOT MAXIMUM OF FOUR SQUARE FEET DISTANCE: NO MORE THAN 500 FEET APART, WITH NO LESS THAN 3 SIGNS PER POND. A SIGN MUST BE PLACED AT ALL PUBLIC ACCESS AND ENTRANCE ARES TO THE POND. MATERIAL: PERMANENT MATERIAL, EITHER WOOD OR METAL WITH BLADED EDGES. TEXT: AT MINIMUM, MUST HAVE THE WORDS "NATIVE PLANTINGS" AND ANY OTHER TEXT REQUIRED BY THE CITY OF CARMEL. COLORS: TO BE DETERMINED BY THE DEVELOPER. NATIVE PLANTINGS DO NOT SPRAY OR MOW 2'X2' GRATE. NYOPLAST OR OTHER APPROVED EQUAL. REFER TO MANUFACTURER DETAILS FOR SPECIFIC MODEL NUMBER. CONCRETE APRON CONCRETE APRON 12" HDPE NYOPLAST CATCH BASIN OR APPROVED EQUAL. REFER TO MANUFACTURER DETAILS FOR SPECIFIC MODEL NUMBER. COORDINATE SHOP DRAWINGS WITH ENGINEER FOR APPROVAL. INV=868.00 REFER TO MANUFACTURER DRAWINGS FOR SPECIFIC CONNECTION DETAILS. TOC = 870.50