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— SPILLWAY— <br />6" THICK RIPRAP BLANKET <br />W <br />Cp <br />O <br />IMPOUNDMENT <br />EMBANKMENT <br />RETENTION <br />POND <br />BASKET STRAINER <br />8" HIGH (MIN.) <br />1/4" OPENINGS (MAX.) <br />12" MAX. <br />/ <br />NATIVE ROCK (ANGULAR) Cs <br />4" PVC S. = 1/4" PER FOOT <br />dw = 3" (APPROX.) <br />4" THREADED CAP 4" TEE <br />(SEE SECTION) <br />(REMOVE TO ALLOW DAYLIGHT TO DRAIN <br />PIPE CLEANING) <br />N <br />4" POND DRAIN <br />,�� <br />y <br />T <br />NTS <br />2' MIN. <br />RUNOFF <br />RUNOFF FROM <br />ONSITE BASIN 30 <br />ELEV. 5363.0 <br />OFFSITE: TOWARD <br />0 10 20 <br />40 <br />3:1 COUNTY ROAD U17 <br />SCALE. 1 " = 20' <br />COMPACTED <br />EXISTING STORMWATER <br />EMBANKMENT <br />RETENTION POND <br />30 <br />SECTION H -H' <br />Cp <br />NTS <br />� O <br />TOP OF 5362.5 TOP OF RIPRAP 5363.0 <br />EMBANKMENT 5363.00 (EXISTING) <br />EXISTING <br />STRUCTURE <br />ELEV.,w 5362.15 <br />��'�� `�� ?71 Q,O, — 0.59 c <br />5362.0 \/, <br />/ \ <br />COMPACTED 5361.5 <br />1`MBANKMENT * (10 —YR ELEV.) � <br />f �� \� <br />6" THICK RIPRAP BLANKET: <br />ANGULAR ROCK (NATIVE MATERIAL) <br />i\\ 4 d,o = 3 "(APPROX.) <br />* — USE NATIVE MATERIAL FROM DETENTION POND EXCAVATION. <br />V <br />V <br />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 />REMS" RLC DATE 4130/2013 <br />REVISION - DATE <br />DmwN g <br />DESIGNED BY <br />RLC DATE 7/20/2012 <br />PMD DATE 7/20/2012 <br />O'Connor �esi�n <br />�roup <br />2350GRoad <br />Inc. Grand Junction, Co. 81505 <br />RETENTION POND 30 - GRADING AND DETAILS <br />DRAINAGE DESIGN PLAN <br />REVISION ® — aAt>= <br />CHECKED er <br />P►ro wtE 7/20 /2012 <br />Phone:(970)241 -7125 <br />Fax: (970) 241 -7852 <br />COTTER CORPORATION MINE SM -18 <br />SHEET 8 OF 11 <br />