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• <br />MIDDLE FORK - PURGATOIRE RIVER <br />CHANNEL DIVERSION <br />As- Built Parameters <br />Embankment Slopes (AVG) <br />North - 2.03 H: 1 V <br />South - 2.84 H: 1 V <br />Bottom Width (AVG) = 21 FT <br />Channel Bottom Slope (AVG) = 0.0178 FT/FT <br />Rip-Rap <br />0+00 TO/1+90 - 13.6' on S. Slope <br />7.9' on N. Slope <br />1+90 TO/4+90 - 7.4' on S. Slope <br />7.4' on N. Slope <br />4+90 TO/7+00 - 14.3' on S. Slope <br />7.4' on N. Slope <br />• Diversion Control Point Monument <br />DPI N 7094.8 <br />E - 1 L2,721.58 <br />EL. 7416.63 <br />As- Built Hydraulic Analysis <br />Check to see if original design flow depth will work. <br />d 9.58 FT. <br />A = Y,(9.58)2(2.03) + Y:(9.58)2 (2.84) +(9.58)(21.0) <br />A = 424.66 FT2 <br />WP = 21.68'+21.0'+28.85'=71.53 FT <br />R = A/WP = 5.94 FT <br />V = 1.486/n R2135~a = 1.486/0.04 (5.94)2/3(0.0178)y' <br />V = 16.26 FPS <br />Q VA =(16.26)(424.66) = 6905 CFS <br />• <br />