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l � <br />u <br />r� <br />u <br />TR -55 <br />Table 20. Ditch Data <br />itch N-be <br />• ear our <br />Peak Discharge <br />(CFS) <br />Contributiott <br />Drainage Area <br />(Acres) <br />Disturbed (D) or <br />Undisturbed <br />(UD) <br />CN <br />Depth <br />((t) <br />Top Width <br />(ft) <br />Shape <br />Ditch Slope <br />M) <br />D. Rip -Rap <br />(in) <br />1 <br />10.5 <br />3.9 <br />D <br />88 <br />1.5 <br />7.5 <br />V <br />1.5 <br />2 <br />13.38* <br />4.4 <br />D <br />85 <br />0.87 <br />10.35 <br />Trap. <br />5.0 <br />3 <br />3.65* <br />1.4 <br />D <br />85 <br />1.0 <br />7.51 <br />V <br />4.0 <br />4 <br />1.83* <br />0.76 <br />D <br />82 <br />0.83 <br />4.2 <br />V <br />1.8 <br />5 <br />1.75 <br />1.95 <br />D <br />79 <br />0.88 <br />4.41 <br />V <br />1.0 <br />6 <br />1 3.98 <br />2.2 <br />D <br />89 <br />0.96 <br />3.84 <br />V <br />3.0 <br />7 <br />40.6 <br />18.9 <br />UD <br />80 <br />2.0 <br />8.0 <br />Trap. <br />3.2 <br />8 <br />3.12 <br />3.22 <br />D <br />89 <br />0.82 <br />4.08 <br />V <br />6.0 <br />9 <br />34.8 <br />15.9 <br />UD <br />80 <br />2.5 <br />13.8 <br />V <br />5.9 <br />10 <br />40.46* <br />71.86 <br />UD <br />64 <br />1.12 <br />6.7 <br />V <br />4.6 <br />DIOA <br />0.19 <br />0.14 <br />D <br />82 <br />0.49 <br />2.43 <br />V <br />5.0 <br />11 <br />44.4 <br />23.5 <br />UD <br />80 <br />2.0 <br />8.0 <br />Trap. <br />2.9 <br />12 <br />3.98 <br />2.29 <br />D <br />91 <br />0.99 <br />4.97 <br />V <br />10 <br />13 <br />0.59 <br />0.43 <br />D <br />82 <br />0.59 <br />2.93 <br />V <br />5.0 <br />14 <br />4.36 <br />2.63 <br />D <br />91 <br />1.02 <br />5.09 <br />V <br />2.0 <br />15 <br />8.75 <br />6.95 <br />D <br />86 <br />1.23 <br />6.16 <br />V <br />2.0 <br />16 <br />11.35 <br />13.44 <br />D <br />80 <br />1.34 <br />6.69 <br />V <br />1.9 <br />17A <br />1.63 <br />1.75 <br />D <br />89 <br />0.70 <br />3.52 <br />V <br />6.0 <br />17AA <br />1.00 <br />1.07 <br />D <br />89 <br />0.65 <br />3.24 <br />V <br />5.0 <br />17B <br />2.92 <br />3.01 <br />D <br />89 <br />0.92 <br />4.59 <br />V <br />2.0 <br />17C <br />5.71 <br />6.31 <br />D <br />89 <br />1.09 <br />5.47 <br />V <br />2.0 <br />17D <br />0.26 <br />0.30 <br />D <br />87 <br />0.51 <br />2.55 <br />V <br />5.0 <br />18 <br />140.0 <br />92.5 <br />UD <br />80 <br />2.5 <br />13.8 <br />V <br />6.2 <br />19 <br />2.6 <br />0.8 <br />UD <br />75 <br />1.0 <br />5.0 <br />V <br />8.0 <br />20 <br />7.37 <br />6.1 <br />D <br />80 <br />1.10 <br />5.48 <br />V <br />3.3 <br />21 <br />9.1 <br />0.7 <br />D <br />89 <br />1.5 <br />7.5 <br />V <br />1.8 <br />22 <br />21.51 <br />14.71 <br />D <br />82 <br />1.79 <br />8.94 <br />V <br />1.0 <br />23 <br />47.2 <br />34.0 <br />D <br />89 <br />2.5 <br />13.8 <br />V <br />2.0 <br />23A <br />0.95 <br />0.61 <br />D <br />85 <br />0.71 <br />3.53 <br />V <br />2.0 <br />23AA <br />1.48 <br />0.95 <br />D <br />85 <br />0.78 <br />3.9 <br />V <br />2.0 <br />23B <br />0.09 <br />0.14 <br />D <br />85 <br />0.48 <br />2.38 <br />V <br />1.5 <br />24 <br />15.8 <br />6.90 <br />D <br />85 <br />1.0 <br />7.0 <br />Trap. <br />1 1.75 <br />24A <br />0.28 <br />0.18 <br />D <br />85 <br />0.56 <br />2.78 <br />V <br />2.0 <br />24B <br />1.01 <br />0.65 <br />D <br />85 <br />0.72 <br />3.58 <br />V <br />2.0 <br />24BB <br />0.08 <br />0.05 <br />D <br />85 <br />0.48 <br />2.38 <br />V <br />2.0 <br />24C <br />4.81 <br />0.09 <br />D <br />94 <br />1.1 <br />4.3 <br />V <br />2.8 <br />24C1 <br />0.43 <br />0.2 <br />D <br />94 <br />1.0 <br />4.04 <br />V <br />2.2 <br />24C2 <br />2.23 <br />0.89 <br />D <br />92 <br />1.0 <br />4.1 <br />V <br />10.0 <br />240 <br />.71 <br />0.33 <br />D <br />94 <br />1.0 <br />4.1 <br />V <br />1.0 <br />24C4 <br />.86 <br />0.4 <br />D <br />94 <br />1.0 <br />4.0 <br />V <br />22.0 <br />Pit Run <br />24C5 <br />3.06 <br />0.18 <br />D <br />94 <br />1.0 <br />4.0 <br />V <br />2.0 <br />24C6 <br />2.67 <br />0.21 <br />D <br />93 <br />1.0 <br />4.0 <br />V <br />12 <br />24D <br />2.21 <br />1.42 <br />D <br />85 <br />0.86 <br />4.28 <br />V <br />2.0 <br />24E <br />0.26 <br />0.17 <br />D <br />85 <br />0.55 <br />2.74 <br />V <br />2.0 <br />25 <br />5.3 <br />1.5 <br />D <br />89 <br />1.5 <br />7.5 <br />V <br />4.0 <br />25A <br />5.3 <br />1.5 <br />D <br />89 <br />V <br />5.2 <br />26 -Conc <br />32.38 <br />52.7 <br />UD <br />71 <br />1.0 <br />3 <br />Rect. <br />5.0 <br />26 <br />32.38 <br />52.7 <br />UD <br />71 <br />1.44 <br />10.61 <br />V <br />5.0 <br />Pit Run <br />27 <br />5.6 <br />2.9 <br />D <br />80 <br />1.5 <br />7.5 <br />V <br />2.0 <br />28 <br />18.7 <br />10.3 <br />D <br />80 <br />2.0 <br />8.0 <br />Trap. <br />3.0 <br />29 <br />70.0 <br />67.2 <br />UD <br />72 <br />2.5 <br />13.8 <br />V <br />13.0 <br />30 <br />47.6 <br />14.8 <br />UD <br />72 <br />1.0 <br />5.0 <br />Trap. <br />0.5 <br />31 Trap. <br />157.2 <br />UD <br />3.3 <br />19.8 <br />Trap. <br />1.0 <br />31 Ariz. <br />157.2 <br />UD <br />1.3 <br />100 <br />V <br />2.0 <br />32 <br />2.0 <br />8 <br />Trap. <br />32A <br />0.10 <br />0.07 <br />D <br />82 <br />0.48 <br />2.38 <br />V <br />2.0 <br />32B <br />0.34 <br />0.21 <br />D <br />88 <br />0.58 <br />2.88 <br />V <br />2.0 <br />33 <br />1.0 <br />5.0 <br />V <br />34A <br />2.0 <br />34AA <br />2.07 <br />1.16 <br />D <br />89 <br />0.81 <br />4.04 <br />V <br />2.0 <br />34AAA <br />1.8 <br />1.01 <br />D <br />89 <br />0.78 <br />3.91 <br />V <br />2.0 <br />34B <br />2.0 <br />34BB <br />1.27 <br />0.83 <br />D <br />89 <br />0.72 <br />3.61 <br />V <br />2.0 <br />34BBB <br />1.29 <br />0.72 <br />D <br />89 <br />0.72 <br />3.62 <br />V <br />2.0 <br />39A <br />5.73 <br />5.41 <br />UD <br />71 <br />1.0 <br />1.5 <br />Trap. <br />3.25 <br />39AA <br />5.73 <br />5.41 <br />UD <br />71 <br />1.0 <br />1.5 <br />Trap. <br />3.25 <br />* 100- ear 24 -hour storm. <br />2.05 -11 <br />03/11 <br />