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l \ <br />BEIR ,. <br />Fiy <br />OJaQP <br />Q <br />O <br />C <br />o � <br />WEIR IS 5' BREADTH <br />17* SLOPE X 4' WIDE <br />8 <br />4" DRAIN <br />E DETAIL <br />1 <br />I \ V <br />7 <br />y o <br />o th \ <br />�4) \ \ <br />w I <br />�5381�, PROPOSED STORMWATER' <br />RETENTION POND 20 <br />0. �. <br />— SPILLWAY= / <br />THICK RIPRAP B K <br />�nVE ROCK (AN <br />dm - 3" (APPROX:) <br />SEE SECTION) EXTEND <br />PRAP 10' AST VIE 2 , <br />REGRADE CHANNEL AND INSTALL <br />RIPRAP TO TOE OF EXISTING <br />o ROCK OUTCROP'1 <br />D �- <br />n <br />\ P 0,,, -3.64 cfs <br />20 -4' <br />°,\,s <br />i 0 0 <br />;PROPOSED RIPRAP: 12" LAYER <br />:''ANGULAR ROCK, D.=6" IN CHANNEL <br />20 -3.5 AND 20'X15' PAD AT <br />CONFLUENCE NTH POND OUTLET <br />0 <br />N <br />Z <br />0 <br />a <br />i <br />N <br />0 15 30 60 <br />SCALE: I" = 30' <br />RETENTION <br />POND <br />BASKET STRAINER <br />8" HIGH (MIN.) <br />1/4" OPENINGS (MAX.) \ <br />3" MAX. <br />4" THREADED CAP <br />(REMOVE TO ALLOW <br />PIPE CLEANING) <br />OFFSITE: TOWARD <br />COUNTY ROAD U17 <br />COMPACTED <br />EMBANKMENT <br />IMPOUNDMENT <br />EMBANKMENT <br />4" PVC S,„„ = 1/4" PER FOOT <br />4" TEE <br />DAYLIGHT TO DRAIN r� <br />ELEV. 5383.0 <br />4" POND DRAIN <br />NTS <br />2' MIN. <br />SECTION F -F' <br />D 440 <br />: < �= <br />sa �0759 <br />^' <br />7�,D13 <br />a <br />RUNOFF FROM ii V <br />ONSITE BASIN 20 <br />NTS <br />TOP OF 5382.0 TOP OF RIPRAP 5383.0 <br />EMBANKMENT 5383.00 (EXISTING) <br />ELEV,, p 5381.27 r*"A 5381 .10 �� 0,� 0.71 COMPACTED 5380.60 ��MBANKMENT * (10 —YR ELEV.) ' ' �/� THICK RIPRAP BLANKET: <br />ANGULAR ROCK (NATIVE MATERIAL) <br />4' dw = 3 "(APPROX.) <br />(MIN. <br />* — USE NATIVE MATERIAL FROM DETENTION POND EXCAVATION. <br />INSTALL AS LOCATED ON PLAN IN 6" LIFTS (MAXIMUMUM). <br />WHEEL ROLL EACH LIFT TO MAXIMUM VISUAL COMPACTION. <br />SECTION G -G' <br />NTS <br />REVISION ® RLC DATE 4/30/2013 <br />REVISION ® RLC DATE 6/14/2013 <br />DRAWN BY <br />DESIGNED BY <br />RLC DATE 7/20/2012 <br />PMO DATE 7/20/2012 <br />O'Connor Ves n <br />group, Inc. <br />2350 G Roed <br />GPI <br />RETENTION POND 20 — GRADING AND DETAILS <br />DRAINAGE DESIGN PLAN <br />241-7125 <br />11 <br />REVISION ® DATE <br />CHECKED BY <br />PMO DATE 7/20/2012 <br />Fwc 70 249 -7852 <br />c� � <br />COTTER CORPORATION MINE SM -18 <br />SHEET OF 1 1 <br />