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�11 <br />El <br />Table 8 <br />Emergency Spillway <br />for Pond NO. <br />Seneca II Mine, RoWtt <br />Rating Curve <br />003 <br />County, Colorado <br />Revised 8/27/86 <br />7-6b-25 <br />TRAPEZOIDAL CHANNEL ANALYSIS <br />RATING CURVE <br />COMPUTATION <br />Channel <br />Bottom <br />Slope <br />(feet per <br />foot) <br />0.05 <br />Manning`s <br />Roughness <br />06efficient <br />(n-value) <br />0.040 <br />Channel <br />Side <br />Slopes - <br />Left Side <br />(horizontal/vertical) <br />3 <br />Channel <br />Side <br />Slopes - <br />Right Side <br />(horizantal/vertical) <br />3 <br />Channel <br />Bottom Width <br />(feet) <br />10 <br />*** RESULTS *** <br />Depth Flow <br />Rate <br />Velocity <br />Froude <br />Velocity Energy <br />Flow <br />Area <br />Top Width <br />(ft) <br />(cfs) <br />(fps) <br />Number <br />Head(ft) Head(ft) <br />(sq ft) <br />(ft) <br />0.10 <br />1.80 <br />1.75 <br />0.991 <br />0.05 <br />0.15 <br />1.03 <br />10.60 <br />0.25 <br />8.43 <br />3.14 <br />1.144 <br />0.15 <br />0.40 <br />2.69 <br />11.50 <br />0.50 <br />27.50 <br />4.78 <br />1.267 <br />0.36 <br />0.B6 <br />5.75 <br />13.00 <br />0.75 <br />55.68 <br />6.06 <br />1.342 <br />0.57 <br />1.32 <br />9.19 <br />14.50 <br />1.00 <br />92.78 <br />7.14 <br />1.395 <br />0.79 <br />1.79 <br />13.00 <br />16.00 <br />1.25 <br />138.93 <br />8.08 <br />1.437 <br />1.01 <br />2.26 <br />17.19 <br />17.50 <br />1.50 <br />194.41 <br />8.94 <br />1.472 <br />1.24 <br />2.74 <br />21.75 <br />19.00 <br />1.75 <br />259.54 <br />9.73 <br />1.502 <br />1.47 <br />3.22 <br />26.69 <br />20^50 <br />2.00 <br />334.70 <br />10.46 <br />1.528 <br />1.70 <br />3.70 <br />32.00 <br />22.00 <br />Revised 8/27/86 <br />7-6b-25 <br />