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OUCUU. I —LV <br />20 40 <br />10 "O"Oent Channel <br />Channel Profile <br />Foot High Check Dam with 1.5H:1 V upstream face and <br />3H:1 V downstream face <br />AREA CAPACITY TABLE <br />For 10% channel, 20 tool wide trap channel, 2HAV sides, rock check dam 3' high. 1.5H: 1V /ace <br />Elevation <br />(leeq <br />Area <br />(ft sq) <br />Area <br />(acres) <br />Average Area <br />(acres) <br />Inc <br />(ac -ft) <br />Cum <br />(ac-@) <br />97.0 <br />11.2 <br />0.00026 <br />- <br />0.00185 <br />0.00185 <br />98.0 <br />149.8 <br />0.00344 <br />0.00185 <br />0,00502 <br />0.00251 <br />98.5 <br />287.5 <br />0.00660 <br />000436 <br />0.00834 <br />0,00417 <br />99.0 <br />438.8 <br />0.01007 <br />0.00853 <br />0.01195 <br />0.00597 <br />99.5 <br />601.9 <br />0.01382 <br />0.01450 <br />001601 <br />0.00801 <br />100,0 <br />793.0 <br />0.01821 <br />002251 <br />ure <br />Note: All Elevations shown on this Figure are relative. Typical Configuration and Capacity of a Check Dam <br />in 20 Foot wide Trapezoidal channel at 10% slope <br />14 <br />