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g <br />to <br />as <br />�-i <br />�QP <br />OJ <br />4" DRAIN <br />SEE DETAIL <br />N <br />0 10 20 40 <br />SCALE: 1 " = 20' <br />EXISTING STORMWATER <br />RETENTION POND 30 <br />—SPILLWAY - <br />6" THICK RIPRAP BLANKET <br />NATIVE ROCK (ANGULAR) <br />d5o = 3" (APPROX.) <br />(SEE SECTION) EXTEND <br />RIPRAP 1�' PAST WEIR <br />® 1� f <br />EXIST <br />STRUCI <br />0 <br />S� <br />,,/Sl <br />RUNOFF FROM <br />ONSITE BASIN 30 <br />3;1 <br />i 1 0 <br />COMPACTED , <br />EMBANKMENT <br />IMPOUNDMENT <br />EMBANKMENT <br />4" PVC Sw., = 1 /4" PER FOOT <br />4" TEE <br />DAYLIGHT TO DRAIN <br />4" POND DRAIN <br />2' MIN. <br />SECTION H -H' <br />NTS <br />NTS <br />ELEV. 5363.0 <br />r <br />OFFSITE: TOWARD <br />COUNTY ROAD U17 <br />TOP OF 5362.5 <br />TOP OF RIPRAP <br />5363.0 <br />0 <br />(EXISTING) <br />RETENTION <br />ELEV.,w 5362.15 <br />Q,w — 0.59 c <br />C <br />POND <br />\ <br />BASKET STRAINER <br />8" HIGH (MIN.) <br />CID <br />1/4" OPENINGS (MAX.) <br />t� <br />\ <br />W----F`MBANKMENT * (10 -YR ELEV.)"/\</ <br />' �� \�< \� <br />12" MAX. <br />s <br />6" THICK RIPRAP BLANKET: <br />4" THREADED CAP <br />4 <br />(REMOVE TO ALLOW <br />d. = 3 "(APPROX.) <br />PIPE CLEANING) <br />EXIST <br />STRUCI <br />0 <br />S� <br />,,/Sl <br />RUNOFF FROM <br />ONSITE BASIN 30 <br />3;1 <br />i 1 0 <br />COMPACTED , <br />EMBANKMENT <br />IMPOUNDMENT <br />EMBANKMENT <br />4" PVC Sw., = 1 /4" PER FOOT <br />4" TEE <br />DAYLIGHT TO DRAIN <br />4" POND DRAIN <br />2' MIN. <br />SECTION H -H' <br />NTS <br />NTS <br />ELEV. 5363.0 <br />r <br />OFFSITE: TOWARD <br />COUNTY ROAD U17 <br />TOP OF 5362.5 <br />TOP OF RIPRAP <br />5363.0 <br />EMBANKMENT 5363.00 <br />(EXISTING) <br />Y\ \ ? �� <br />ELEV.,w 5362.15 <br />Q,w — 0.59 c <br />5362.0 <br />COMPACTED 5361.5 <br />W----F`MBANKMENT * (10 -YR ELEV.)"/\</ <br />' �� \�< \� <br />6" THICK RIPRAP BLANKET: <br />ANGULAR ROCK (NATIVE MATERIAL) <br />4 <br />d. = 3 "(APPROX.) <br />iMIN.I <br />\, -i -- * - USE NATIVE MATERIAL FROM DETENTION POND EXCAVATION. <br />1 INSTALL AS LOCATED ON PLAN IN 6" LIFTS (MAXIMUMUM). <br />WHEEL ROLL EACH LIFT TO MAXIMUM VISUAL COMPACTION. <br />SECTION J -J' <br />NTS <br />REVISION ® RLC DATE 4/30/2013 DRAWN By RLC DATE 7/20/2012 • 2350 G Road <br />REVISION ® RLC DATE 6/14/2013 DESIGNED BY RMO DATE 7/20/2012 O /Connor 1�es�►n group Inc• Grand Junctlon. Co. 89505 <br />REVISION ®_ DATE CHECKED BY PMO DATE 7/20/2012 i PFax: ( (970) 249-7925 <br />Fax: (970)241 -7852 <br />:NTION POND 30 - GRADING AND DETAILS <br />DRAINAGE DESIGN PLAN <br />COTTER CORPORATION MINE SM -18 SHEET 8 OF 11 <br />