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Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2023_PS-2301501 thru PS-2302000_ - PS-2301937
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Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2023_PS-2301501 thru PS-2302000_ - PS-2301937
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Last modified
9/29/2023 1:27:29 PM
Creation date
9/29/2023 1:27:06 PM
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Permits_Development
DocName
PS-2301937
Category07
Encroachment(EP)/Driveway(DW) Permits
Year2
2023
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CONCRETE WASHOUT450 MM(18") MIN.450 MM(18") MIN.25 MM (1") MIN.CONCRETEWASHOUTAREA NOTES:1.) FACE SIGN TOWARD NEAREST STREET OR ACCESS POINT.2.) CONCRETE WASHOUT SHALL BE LOCATED BEHIND THE CURB AND 15 M (50 FT.) MINIMUM FROM DRAINAGE INLETS OR WATERCOURSESBALE CONFIGURATIONTHIS SECTION REMOVED FORGRAPHICAL REPRESENTATIONONLY. STRAW BALE PERIMETERSHALL BE CONTINUOUS.SIGN600 MM(24") MIN.36 CM (14") MIN.3 M (10') MIN. <br />TYP. OF 4 SIDES <br />STRAW BALESAA900 MM(36") MIN.SECTION A - A60 MIL POLYETHYLENE50 X 50 MM (2" X2")STAKES OR #4 J-BARS2 PER BALE TYP.STRAW BALESINLET SEDIMENTCONTROL45° NOTES:1.) SEDIMENT TRAPPED UPSTREAM OF SEDIMENT CONTROL BMP SHALL BE REMOVED WEEKLY AND PRIOR TO A RAINFALL EVENT.2.) PLACE BMP'S TIGHTLY TOGETHER AT JOINTS TO PREVENT OR MINIMIZE SEEPAGE AT JOINTS.GRAVEL BAG(S) OR OTHER ACCEPTEDSEDIMENT CONTROL BMP. PLACE BAGSTIGHT AGAINST FACE OF CURB.BACK OF CURBFACE OF CURBLIP OF GUTTERDRAINAGE INLETWITH FILTER BAGPLAN VIEWSEE NOTE 2FLOWTHE MAXIMUM DRAINAGE AREA PER FILTER SHALL BE NO MORE THAN 0.8 HECTARES (2 ACRES).THE FILTER BAG SHALL BE MANUFACTURED FROM UV RESISTANT POLYPROPYLENE, NYLON, POLYESTER, OR ETHYLENE FABRIC WITH A MINIMUM TENSILE STRENGTH OF 90 LBS PER LINEAL FOOT, AN EQUIVALENT OPENING SIZE NOT GREATER THAN 20 SIEVE AND WITH A MINIMUM FLOW RATE OF 40 GALLONS/MINUTE/SQ FT.THE FILTER BAG MAY BE SUSPENDED FROM OR HELD IN PLACE BY THE EXISTING INLET GRATE (OR OTHER APPROVED METHOD), PROVIDING NO MODIFICATION OR DAMAGE SHALL BE DONE TO THE INLET GRATE OR FRAME. THE INLET GRATE SHALL NOT BE CAUSED TO REST MORE THAN 13MM (.5") ABOVE THE INLET FRAME (SEE DETAIL A).THE FILTER BAG MAY EXTEND TO THE BOTTOM OF THE INLET BOX PROVIDED THE OUTLET PIPE IS UNOBSTRUCTED.FLOWS SHALL NOT BE ALLOWED TO BYPASS THE BAG. THE BAG OR ITS FRAME SHALL CATCH FLOWS AT ALL SIDES OF THE INLET, EXCEPT AS SHOWN FOR FLOOD RELEASE.INLET FILTER BAGS SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL DURING THE WET SEASON AND MONTHLY DURING THE DRY SEASON. SEDIMENT AND DEBRIS SHALL BE REMOVED BEFORE ACCUMULATIONS HAVE REACHED ONE THIRD THE DEPTH OF THE BAG. BAGS SHALL BE REPAIRED OR REPLACED AS SOON AS DAMAGE OCCURS. STORM WATERPROTECTION PLANSEFNCOCOMMUNICATIONSConcord, CA, 94521(925) 408-2159splanneng@gmail.com8*(www.planneng.com4746 Clayton Rd,
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