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16 41 <br /> <br />CURB <br />SIDEWALK <br />SHOULDER <br /> 1.5' <br />1.0' <br />CHECK SLOT ALTERNATIVE <br />CHECK SLOT WHERE BLANKET CONTINUES <br />CHECK SLOT AT BEGINNING OF BLANKET <br />1.5' <br />3' <br />3' <br />6' <br />2' <br />20" <br />4' <br />SLOPES FLATTER THAN 1:2 SLOPES 1:2 TO 1:1 CHANNEL AND DITCH APPLICATIONS <br />1.5' <br />3' <br />2' <br />4' <br />6"6"L <br />1' TO 3' <br />BLANKET OVERLAP <br />GENERAL BLANKET INSTALLATION REQUIREMENTS <br />CHECK SLOT REQUIREMENTS <br />INSERT BLANKET INTO ENTIRE TRENCH PERIMETER. <br />6" <br />6" <br />L <br />6" <br />1' TO 3' <br />WATER FLOW <br />CHECK SLOT DETAILS <br />SHOULDER <br />BLANKET STAPLE PATTERN <br />GREATER THAN 2% <br />DITCH GRADES <br />12" AT SEAMS FOR <br />4 <br />2 <br />3 <br /> <br /> <br /> <br /> <br /> <br /> <br />CHECK <br />BLANKET <br />1 <br />4" <br />4" <br />6" <br />THE BOTTOM OF THE TRENCH. <br />PLACE SINGLE ROW STAPLES AT 3' SPACING ALONG <br />PLACE SINGLE ROW STAPLES AT 12" SPACING <br />PLACE SINGLE ROW STAPLES AT 12" SPACING <br />FLOW <br />SLOPE <br />4" <br />4" <br />5 <br />6 <br />CHECK <br />STAPLE <br />FLOW <br />DITCH BLANKET STAPLE DETAIL <br />6" <br />6" <br />IN LIEU OF TRENCH <br />REINFORCED MATRIX <br />FIBER MATRIX OR <br />HYDRAULIC BONDED <br />6" <br />4" <br />DITCH BLANKET CRITICAL POINTS <br />OVERLAPS AND SEAMS <br />7 <br />LAY PARALLEL OR PERPENDICULAR TO THE DIRECTION OF WATER FLOW. <br />BACKFILL TRENCH WITH SOIL AND TAMP. <br />OVERLAP/WRAP <br />2' <br />FLOW <br />STATE DESIGN ENGINEER <br />3 OF 3STANDARD PLAN 5-297.404 <br />TRANSPORTATION <br />OF <br />DEPARTMENT <br />PERMANENT EROSION CONTROL <br />SHEET NO. OF SHEETS <br />APPROVED: <br />REVISED:REPP (BLANKET) STAPLE PATTERN FOR SLOPES <br />PREPARE SOIL AS PER SPECIFICATION 2574. <br />REPP = ROLLED EROSION PREVENTION PRODUCT. <br />OVERLAP ADJACENT STRIP EDGES A MINIMUM OF 4". <br /> <br /> <br /> DIG 6" BY 6" TRENCH. <br />OVERLAP. <br />PLACE SINGLE ROW STAPLES AT 3' SPACING ON <br />OVER TOP END OF LOWER BLANKET. STAPLE ALONG OVERLAP EVERY 1.5'. <br />OVERLAP BLANKET 6" (MINIMUM) AT EACH END. OVERLAP BOTTOM END OF UPPER BLANKET <br />THE BOTTOM OF THE SLOPE. <br />FROM 3 <br />1IF SLOPE LENGTH (L) IS 100' OR GREATER, INSERT BLANKET INTO A CHECK SLOT <br />THE UPPERMOST BLANKET OF ALL SLOPE APPLICATIONS MUST START IN A CHECK SLOT. <br />NOTES: <br />7 <br />6 <br />5 <br />4 <br />3 <br />2 <br />1 <br />PATTERNS. <br />CRITICAL POINTS SHALL BE SECURED WITH PROPER STAPLE <br />5%-7% 25' INTERVALS <br />3%-5% 50' INTERVALS <br />2.5%-3% 100' INTERVALS <br />USE BLANKET CHECKS FOR THE FOLLOWING SLOPES: <br />STAGGERED 4" APART AND AT 4" SPACING. <br />GRADE AT 100' INTERVALS. PLACE DOUBLE ROW OF STAPLES <br />USE STAPLE CHECK FOR CHANNEL SLOPES LESS THAN 2.5%. <br />PLACE SINGLE ROW OF STAPLES AT 12" SPACING. <br />SPACING. BACKFILL TRENCH WITH SOIL AND TAMP. <br />ROW OF STAPLES ON TOP AND TRENCH SIDES AT 12" <br />USE 6" X 6" TRENCH TO PLACE BLANKET. PLACE SINGLE <br />AND 4" ON CENTER. <br />PLACE DOUBLE ROW OF STAPLES STAGGERED 4" APART <br />USE CHECK SLOT DETAIL (NO ALTERNATES). <br />120 STAPLES PER 100 SQ YD 170 STAPLES PER 100 SQ YD 350 STAPLES PER 100 SQ YD <br />TOE OF SLOPE <br />SHOULD BE 0.33*L FROM <br />THAN 100', CHECK SLOT <br />WHEN L IS GREATER <br />SLOPE INTERSECTION <br />CHANNEL BOTTOM/SIDE <br />CHIEF ENVIRONMENTAL OFFICER <br />REVISION: <br />APPROVED: JANUARY 8, 2020 <br />MARNI KARNOWSKI <br />1-8-2020 <br /> <br />THOMAS STYRBICKI CITY PROJ. NO. PW-20-0103Model:404-3 Permanent Erosion Control1/15/2021Last Saved:\\hrgreen.com\HRG\Data\2018\181582\CAD\Road_Design\sheets\CD191801_spn01.dgnFile:PlotDrvr:pdf_bw_no_level_MnDOT.pltcfgPenTbl:hrg.tbl