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"!P) was calculated using SEDIMOT II , while the stage-discharge <br /> relationship of the principal spillway inlet was calculated using the <br /> orifice flog equazion below: <br /> Q = C <br /> :•1�ErE: <br /> 4. = discharge in cfs <br /> C = coefficient of discharge = 0.6 <br /> Ao = cross sectional Area = 0.0014 ft.2 ( .05-inch diameter) <br /> g = gravitational constant = 32.2 ft/sec.2 <br /> H = head (ft.) = 0 to 6.3 ft. <br /> Elevation H (ft) Q cfs <br /> 5697.0 0.0 0.0 <br /> 5698.0 1.0 0.007 <br /> 5699.0 2.0 0.009 <br /> 5700.0 3.0 0.011 <br /> 5700.1 3. 1 0.012 <br /> 5702.0 5.0 0.015 <br /> 5703.3 6.3 0.016 <br /> Table 3 is a summary of the spillway data. <br /> TABLE 3 <br /> Spillway Data Summary <br /> Sediment Pond 002 <br /> Principal Spillway: Type . . . . . . . Riser Inlet (CMP) <br /> Orifice Diameter . . . 0.5-inch <br /> Inlet Elevation. . . . 5697.0 <br /> 10-year, 24-hour Peak <br /> Stage. . . . . . . . . 5699.36 <br /> Emergency Spillway: Type . . . . . . . Drop Inlet (CMP) <br /> Barrel Diameter . . . 12.000-inch <br /> Riser Diameter . . . . 12.000-inch <br /> Length of Barrel . . . 75.000-ft <br /> Vertical Head Drop 4.7-ft. <br /> Entrance Loss Coef. 1.000 <br /> Bend Loss Coef. . 0.500 <br /> Wier Coef. . . . . . . 3.100 <br /> 5 <br />