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OUTLET CONTROL STRUCTURE 1 <br />PLACE LOW SIDEOF STRUCTURETOWARDS POND <br />FLOW DIRECTION <br />FLOW DIRECTION <br />NOT TO SCALE <br />TOP OF WEIR ELEVATIONSEE WEIR DETAIL <br />STEPS 16" O.C. <br />STEPS 16" O.C. <br />5' x 5' x 9"CONCRETE WALLCENTERED ONMANHOLE <br />DRILL & GROUT REBAR INBASE AND WALL OFMANHOLE 3 1/2" MIN. <br />MnDOT 4011 GCONCRETE BASESLABCOMPACTED <br />SUBGRADE <br />12" AGGREGATE BASE,CLASS 5 (INCIDENTAL) <br />60" DIA. PRECAST STRUCTURE <br />12" EPOXY COATEDBARS @ 9" O.C. EW. <br />CONCRETE FILL <br />INVERT ELEVATION 900.9 <br />INVERT ELEVATION 896.7 <br />RIM ELEVATION 905.0 <br />NOTE THAT THE RIM <br />ELEVATION LISTED IN <br />THE PLANS IS FOR <br />THE LOW SIDE OF THE <br />CASTING <br />24" DIA. INLET PIPE <br />24" DIA. <br />902 <br />OUTLET CONTROL STRUCTURE 1 <br />WEIR DETAIL <br />NOT TO SCALE <br />OUTLET PIPE <br />8" DRAINTILE PIPE <br />5.0'5.00'WIDTH VARIES <br />SLOPES <br />1: <br />4 <br />M <br />A <br />XI <br />M <br />U <br />M <br />EROSION CONTROL <br />BLANKET - CAT 25-N <br />ABOVE NWL <br />SEE PLANTING PLAN <br />HWL - 905.5 <br />NWL - 903.0 <br />BOTTOM - 899.0 <br />NOTES: <br />1. BENDS AND RISER TO BE SAME SIZE <br />AS DRAINTILE <br />PLANT BEDDING <br />DRAIN TILE <br />FINISHED <br />GRADE <br />CASTING ASSEMBLY <br />NEENAH R-1976 <br />(INCIDENTAL) <br />CAPPED WITH SCREW <br />IN PLUG WITH RAISED 2" <br />SQUARE TOP FOR <br />REMOVAL <br />4" PVC SCHED. 40 <br />VARIESK:\019789-000\Cad\Plan\PHASE 1\019789-000-C-GENL-PH 1-DETL.dwg 10/24/2022 6:34:45 PMCG-106 <br />AS SHOWN SJP <br />KWHLCW/SJH <br />SCALE: <br />PLAN BY: <br />DESIGN BY: <br />CHECK BY: <br />SHEET <br />WSB PROJECT NO.I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION,OR REPORT WAS PREPARED BY ME OR UNDER MYDIRECT SUPERVISION AND THAT I AM A DULYLICENSED PROFESSIONAL ENGINEER UNDER THELAWS OF THE STATE OF MINNESOTA.LIC. NO:DATE:REVISIONSNO.DATEDESCRIPTIONPIONEER COMMONSLENNAR HOMES - LITTLE CANADA, MINNESOTA019789-000 KYLE W. HOFF10/21/202259709POND DETAILS <br />SCALE: <br />1 <br />CG106 <br />OUTLET CONTROL STRUCTURE-1 (OCS) <br /> NOT TO SCALE <br />SCALE: <br />2 <br />CG106 <br />WET BASIN DETAIL-EAST POND <br /> NOT TO SCALE <br />SCALE: <br />4 <br />CG106 <br />DRAINTILE CLEANOUT DETAIL <br /> NOT TO SCALESCALE: <br />3 <br />CG106 <br />POND WITH A FILTRATION BENCH DETAIL-WEST POND <br /> NOT TO SCALE <br />8" PERFORATED DRAINTILE (NO SOCK, <br />MUST BE SLOTTED, .25" MAX WIDTH) - <br />ELEVATION AND VERTICAL POSITION <br />WITHIN ROCK TRENCH VARY ALONG <br />LENGTH OF DRAINTILE <br />18" FILTER MEDIA SPECIAL70% SAND (ASTM C-33 COARSE WASH SAND) <br />30% COMPOST (MNDOT 3890.2B, GRADE 2 LEAF LITTER) <br />SLOPE <br />S 1:4 <br />M <br />A <br />XI <br />M <br />U <br />M <br />SEE PLANTING PLAN <br />EROSION CONTROLBLANKET - TYPE 3NABOVE NWL <br />BOTTOM OF BENCH - 900.00 <br />BOTTOM - 895.0 <br />3' TYPICAL <br />12" TYPICAL <br />NOTE: <br />18" MINIMUM <br />8" SOLID PVC <br />OUTLET CONTROL <br />STRUCTURE SEE 1/CG106 <br />HWL - 904.1 <br />NWL - 900.0 <br />FILTRATION BENCH <br />ITEMS WITHIN DASHED LINE <br />INDICATE SAND FILTER AND <br />DRAINTILE TO BE CONSTRUCTEDFOLLOWING BUILD-OUT OF FINAL <br />BUILDING ADDITION. ESTIMATEDINSTALLATION 2024-2025. <br />VINYL SHEET PILE ALONG LENGTH OF BENCH <br />ADJACENT TO POND SIDE SLOPE <br />COARSE FILTER AGGREGATE (MnDOT 3149.2H) <br />CONTRACTOR TO EXCAVATE TO BOTTOM OF SAND FILTER. <br />ACCUMULATED SEDIMENT TO BE EXCAVATED TO BOTTOM <br />OF SAND LAYER AND DRAINTILE TRENCHES FOLLOWINGFINAL PHASE BUILD-OUT.ELEV: 898.50 <br />CONTRACTOR TO CONFIRM ONSITESOILS TO BE USED AS POND BOTTOM <br />ARE IMPERMEABLE. IMPORT ANDCOMPACT 1'-0" MIMIMUM CLAY LAYER <br />IF ONSITE SOILS ARE PERMEABLE <br />CONTRACTOR TO CONFIRM ONSITE <br />SOILS TO BE USED AS POND BOTTOMARE IMPERMEABLE. IMPORT AND <br />COMPACT 1'-0" MIMIMUM CLAY LAYERIF ONSITE SOILS ARE PERMEABLE <br />30"MIN.CONTRACTOR SHALL PROVIDE A POST CONSTRUCTION TEST ON THEBIOFILTRATION BENCH. TEST SHALL BE CONDUCTED USING DOUBLE <br />RING INFILTROMETER. INFILTRATION RATE IS TO BE NO LESS THAN 1.2INCHES PER HOUR AND NO GREATER THAN 8.3 INCHES PER HOUR. THE <br />ENGINEER SHALL BE NOTIFIED NO LESS THAN 3 DAYS PRIOR TO THE <br />TEST TO WITNESS THE RESULTS.10/24/2022