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3:1 OR FLATTER <br />4OAK'SE ROCK FLOW LINE SLOPE <br />R(H.K SET IN CURE TRENCH MMINUM OF <br />2.5 FEET UMP BY 2 TO 3 FEE T WIDE <br />SIDE \ITEM <br />A <br />r <br />MUM} <br />END POINTS "A` MUST BE HIGHER <br />iHARN FLOW LINE €'OINT "6' <br />MINIMUM HEIGHT OF CCURSE <br />RUCK PLA(:FD IN CHANNEL <br />FLOW LINE 43 0 TO 2 FEET <br />FRONT VIEW <br />SIE7rSLOPr 2:1 OR FLATTER <br />-- -- L _ <br />FLOW <br />B Gi 4 <br />SIDESLOPE 2:1 OR FLAT 5R <br />n <br />PLACE T)tiWNSTREAM STRUCTURE <br />SUCH THAT POINT "B" IS APPROXIMATELY <br />LEVEL WITH POINT "D° OR AT POINT "C ". <br />..�env nw.. rig ereel CAfT IC nrpvmnANt HPON <br />9.5 TO 2.0 FEET <br />(DIFFERENCE. <br />1 <br />- -- -.- }% 20' WIDE <br />P <br />FIGURE 4.8 -1a fYPICAL DRAINAGE STABILIZATION STRUCTURES, ALTERINAI L "A" UNEUN UAIVIJ <br />4 -183c <br />