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Table 21 <br />Culvert Sizing <br />Culvert Number <br />10 -24 Hour <br />Minimum Comments <br />Diameter Inches E <br />Peak Discharge (CFS )l <br />1 <br />10.38 <br />21 <br />2 <br />210 <br />60 <br />3 <br />40.6 <br />36 <br />4 <br />40.6 <br />36 <br />5 <br />0.65 <br />12 <br />6 <br />106.9 <br />60 <br />7 <br />1.44 <br />12 <br />8 <br />3.77 <br />18 <br />TR-60 12111 <br />9 <br />2.71 <br />24 <br />10 <br />3.12 <br />15 <br />11 <br />1.63 <br />12 <br />12(6) <br />5.71 <br />21 <br />12A <br />47.2 <br />36 <br />TR-60 12/11 <br />13 <br />8.27 <br />21 <br />Removed TR-66 05/12 <br />Removed TR-66 05/12 <br />Removed TR -66 05/12 <br />15 <br />26.7 <br />36 <br />16 <br />11.96 <br />24 <br />16A <br />11.96 <br />24 <br />TR-60 12/11 <br />16B <br />11.96 <br />24 <br />TR-60 12/11 <br />16C <br />11.96 <br />24 <br />TR-60 12/11 <br />16D <br />11.96 <br />24 <br />TR-60 12/11 <br />17 <br />26.7 <br />36 <br />17A <br />26.7 <br />36 <br />TR-60 12/11 <br />17B <br />26.7 <br />36 <br />TR-60 12111 <br />17C <br />26.7 <br />36 <br />TR -66 05/12 <br />18 <br />9.1 <br />30 <br />19 <br />21.02 <br />33 <br />20(3) <br />63.0 <br />36 <br />TR -55 03111 <br />21 <br />41.5 <br />36 <br />22 ** <br />0.44 <br />12 <br />23 <br />18.27 <br />30 <br />Recloated - TR65 - 0612012 <br />24 <br />46.2 <br />(4) <br />Revised July 1988 <br />25 <br />157.2 <br />42 <br />26 <br />65.0 <br />60 <br />TR -66 05/12 <br />27 <br />147.6 <br />60 <br />28 ** <br />8.75 <br />24 <br />TR -60 12/11 100 Yr Event <br />28A** <br />8.75 <br />24 <br />TR-60 12/11 100 Yr Event <br />29 ** <br />8.75 <br />24 <br />TR-60 12/11 100 Yr Event <br />30 <br />62.4 <br />48 <br />TR -66 05112 <br />31 <br />5.3 <br />18 <br />32 <br />21.95 <br />33 <br />33 <br />1.96 <br />12 <br />34 ** <br />3.87 <br />15 <br />Revised 5/95 <br />35 <br />0.26 <br />6 <br />Revised 4/95 <br />36 <br />2.21 <br />12 <br />Revised 5/95 <br />37 <br />67 <br />36 <br />Revised 818188 <br />36 <br />99 <br />60 <br />TR-22 100 Yr 24 HR Revised 11/16/90 <br />39 <br />7.82 <br />18 1 <br />TR-66 5/12 <br />40 <br />3.51 <br />12 <br />TR-66 5112 <br />TR -66 2.05 -14 08/24/12 <br />