HomeMy WebLinkAboutC105 SWPPP DETAILSSILT FENCE INLET PROTECTION
INSTALLATION
1.DIG AN EIGHT-INCH DEEP, FOUR-INCH WIDE TRENCH AROUND THE PERIMETER OF THE
INLET.
2.IF USING PRE-ASSEMBLED GEOTEXTILE FABRIC AND POSTS, DRIVE THE POSTS INTO THE
SOIL, TIGHTLY STRETCHING THE GEOTEXTILE FABRIC BETWEEN POSTS AS EACH IS DRIVEN.
(POSTS MUST BE PLACED ON THE INLET SIDE OF THE ANCHOR TRENCH WITH THE
GEOTEXTILE FABRIC ON THE SIDE OF THE TRENCH FARTHEST FROM THE INLET.)
NOTE:IF ASSEMBLING THE GEOTEXTILE FABRIC AND POSTS ON-SITE, DRIVE THE POSTS INTO
THE SOIL AND THEN SECURE THE GEOTEXTILE FABRIC TO THE POSTS BY PLACING A PIECE
OF LATHE OVER THE FABRIC AND FASTENING IT TO THE POST
(STRETCHING THE FABRIC BETWEEN POSTS AS IT IS FASTENED).
3.USE THE WRAP JOIN METHOD WHEN JOINING POSTS.
4.PLACE THE BOTTOM 12 INCHES OF GEOTEXTILE FABRIC INTO THE EIGHT-INCH DEEP
TRENCH, LAYING THE REMAINING FOUR INCHES IN THE BOTTOM OF THE TRENCH AND
EXTENDING AWAY FROM THE INLET.
5.BACKFILL THE TRENCH WITH SOIL MATERIAL AND COMPACT IT IN PLACE.
6.BRACE THE POSTS BY NAILING BRACES INTO EACH CORNER POST OR UTILIZE RIGID
PANELS TO SUPPORT FABRIC.
NOTE: IN SITUATIONS WHERE STORM WATER MAY BYPASS THE STRUCTURE,
EITHER: SET THE TOP OF THE GEOTEXTILE FABRIC FILTER AT LEAST SIX INCHES LOWER THAN
THE GROUND ELEVATION ON THE DOWN-SLOPE SIDE OF THE STORM DRAIN INLET, BUILD A
TEMPORARY DIKE, COMPACTED TO SIX INCHES HIGHER THAN THE FABRIC, ON THE
DOWN-SLOPE SIDE OF THE STORM DRAIN INLET, AND/OR USE IN CONJUNCTION WITH
EXCAVATED DROP INLET PROTECTION.
MAINTENANCE
_ INSPECT DAILY.
_ INSPECT GEOTEXTILE FABRIC AND MAKE NEEDED REPAIRS IMMEDIATELY.
_ REMOVE SEDIMENT FROM POOL AREA TO PROVIDE STORAGE FOR THE NEXT STORM
EVENT. AVOID DAMAGING OR UNDERCUTTING FABRIC DURING SEDIMENT REMOVAL.
_ WHEN CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE SEDIMENT,
PROPERLY DISPOSE OF ALL CONSTRUCTION MATERIAL, GRADE AREA TO THE ELEVATION
OF THE STORM DRAIN INLET TOP, THEN STABILIZE IMMEDIATELY.
REFERENCED IN CHAPTER 7 PAGE 153-157 IN THE INDIANA STORM WATER QUALITY MANUAL.
SECURELY FASTEN
OVERLAPPING ENDS
OF SILT FENCE
MATERIAL TO
ADJACENT STAKES
WITH THREE WIRE
TIES OR OTHER
FASTENERS
ATTACH THE WOVEN
WIRE FENCE TO EACH
POST WITH THREE
WIRE TIES OR OTHER
FASTENERS
SILT FENCE MATERIAL
TO BE FASTENED
SECURELY TO WOVEN
WIRE FENCE WITH
THREE TIES SPACED
AT 3" ON CENTER
4"x8" TRENCH
C105SWPPP DETAILSW180233-C103 swppp detFOR NON PAVED AREAS (NO SCALE)
POSTS: 2 X 4 WOODEN STAKE
FENCE: WOVEN WIRE, 14-1/2 GA., 6" MAX. MESH OPENING
FABRIC: IN ACCORDANCE WITH ASTM D 6461 LATEST EDITION.
GEOTEXTILE FABRIC LAID ON
DOWN-SLOPE SIDE AND
BOTTOM OF TRENCH
EXTEND WIRE FENCE A
MIN. OF 8" INTO GROUND
WOVEN WIRE FENCE
WITH SILT FENCE
MATERIAL COVER
CROSS BRACE
1"x2" or 1"x3"
36" MAX.
(TYP.)
DROP INLET
WITH GRATE 12"MIN.18"MAX.2"x2" OR 2"X4"
WOOD FRAME
2"x2" or 2"x4" STAKE
5' MIN.
OVERLAP REVISIONS AND ISSUESPart of the SE/4 of Section 28, Township 18 North, Range 4 East, Clay Township, Hamilton County, IndianaW18.0233PREPARED FOR:12900 HAZEL DELL PARKWAYPROJECT NO.
SHEET NO.CHECKED BY:DRAWN BY:RLWDESIGNED BY:DWG NAME:PROJECT NO.:W18.0233DATEBY06.11.2019MLTDATE:RLWKnow what's below.
before you dig.Call
R APPROVAL PENDINGNOT FOR CONSTRUCTIONNORTHVIEW CHURCH PARKING ADDITIONSENGINEERS317 | 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. 11900318RUSSELL L . W EBST
E
R
I
I
PRO
FESSION A L E N GINEERREG I S T ER
E
DIND I A N A
PE11900318
STATE OF
NO.
APRON ON THIS
SIDE OF THE DIKE
SHALL BE FOLDED
UNDER THE DIKE
SECTION 20" AND
GLUED DOWN
CONSTRUCTION
AREA
SECTION A-A
DIKE PLAN VIEW
APRON
ADHESIVE
FLOW
ADHESIVE
20"20"ADHESIVEADHESIVEADHESIVE
ADHESIVE
NOTES
1. INSTALLED SILT DIKE UNIT SHALL HAVE CONTINUOUS
AND FIRM CONTACT WITH PAVEMENT.
2. ADHESIVES SHALL BE LIQUID NAIL OR APPROVED
EQUAL FOR CONCRETE PAVEMENT APPLICATIONS AND
EMULSIFIED ASPHALT FOR ASPHALT APPLICATIONS.
ADHESIVE SHALL BE PLACED WHERE THE UNITS
OVERLAP AND A 20" STRIP ALONG BOTH EDGES.
FLOW
OVERLAP PER
MANUFACTURER'S
RECOMMENDATIONS
SILT DIKE
(ON EXISTING PAVEMENT)
(NO SCALE)
EXISTING CONCRETE OR
ASPHALT PAVEMENT
MAINTENANCE
1) AFTER EACH STORM EVENT AND AT WEEKLY INTERVALS, INSPECT THE SILT DIKES AND LEVEL OF SEDIMENT PRESENT
UPSTREAM OF THE DIKE.
2) IF THE SEDIMENT IS 1/2 THE HEIGHT OF THE DIKE, REMOVE SEDIMENT AND DISPOSE OF IN AN APPROVED LOCATION.
4) INSPECT DIKE TO ENSURE STORMWATER FLOW IS NOT FLOWING AROUND OR UNDER THE DIKE.
5) REPLACE SATURATED OR REPAIR TORN OR DAMAGED DIKES AS REQUIRED.
INSTALLATION
1) INSTALL SILT DIKE PER THE PLAN LOCATIONS.
2) INSTALL DIKE ON PAVEMENT SURFACE PER MANUFACTURERS RECOMMENDATIONS AND INSURE GOOD CONTACT WITH THE
ASPHALT SURFACE WITH NO VOIDS UNDER FABRIC.