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' UTE ENGINEERING & SURVEYING CO <br />P. 0. Box 674 443 Dodge <br />,~„ [3car Coal Company {~ 8580 <br />,A~~.~~~:,~~:,~I, 1'DP. IIA~I 3-9c80. <br />DELTA, COLORADO 81416 <br />(3031 8747593 <br />- Kev.V,conA ane nOZea <n SCn4, z IC e ~-i'~~'L ~' =•c~~•3l4) 101-1 (COn't) <br />Segment Length Shope LS <br />' l 7,' U.5o U.U9U <br />2 75' 27.U$ 6.000 <br />3 75' 1.U°s U•725 <br />' LS 5~.guneh 4aom Pned.~e.tc:ng Rcu:nba~~ Enoh~.on Loh-sees, u.S. Depcve-tment o(, Ag~:.Leu~.tuhe, <br />F~gwce 4, page 13, and Ta6Qe 3, page 12. <br />' LS = . 19 (U. U9) + . 35 (6.UU ) + . 45 (0.7x5)= 2.45 <br />' LS = 2.45- C 1..0 P = 1 ~, = 40(•69) 2.45 ( 11 (1) _ <br />67.62. T/n. <br />' Sediment yield = 176,000 67,64 T/j, = 273.21 T/y <br />4 3, 5 6 0-t~/~'~ r <br />3 years SED Yield = 273.21(3) =•k19.64~P <br />819.64T (20004!T) __ 14,255 cu4t (0.327 acne-(~eet on 0.08 acne-beetlaehe) <br />' 'DIS ~/ft <br />Total Volume =6453 ft3 +14,255 ft3 = 20,708 cu6t on 0.475 acne-beet <br />Required Pond Volume = 20,708 ft3 ort 0.475 acne-beet <br />Spillway design: 25 year storm <br />Use rational formula for smell. area, w!no danger to human life for <br />spillway design. <br />4 = CiT, <br />C = Runoff factor <br />i = Intensity base; on concentr:.ition <br />