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Q=CAo <br />~J <br />where: <br />v = discharge in cfs <br />C = coefficient of discharge = 0.6 <br />Ao = cross sectional Area = 0.0021 ft.z (5/8 inch diameter) <br />g = gravitational constant = 32.2 ft/sec.z <br />H = head (ft.) = 0 to 6.0 ft. <br />• <br /> <br />Elevation <br />5662.0 <br />5664.0 <br />5666.0 <br />5668.0 <br />cfs <br />0.0 <br />0.014 <br />0.020 <br />0.025 <br />Table 7 is a summary of the spillway data. <br />TABLE 7 <br />Spillway Data Summary <br />Sediment Pond 004 <br />Principal Spillway: <br />Emergency Spillway: <br />Type <br />Orifice Diameter . <br />Inlet Elevation. . <br />10-year, 24-hour Peak <br />Stage. . <br />Type <br />Barrel Diameter <br />Riser Diameter . <br />Length of Barrel . <br />Vertical Head Drop . <br />Entrance Loss Coef. <br />Bend Loss Coef. <br />Wier Coef. <br />Orifice Coef. <br />Manning Coef. <br />Inlet Elevation. . <br />25-year, 24-hour Peak <br />Stage. . <br />Riser Inlet (CMP) <br />5/8 inch <br />5662.0 <br />5665.07 <br />Drop Inlet (CMP) <br />12.000-inch <br />12.000-inch <br />70.000-ft <br />1.4-f t. <br />1.000 <br />0.500 <br />3.100 <br />0.600 <br />0.025 <br />5666.0 <br />5665.89 <br />The entrance to the emergency spillway is located more than one foot <br />above the principal spillway. There will be no flow through the <br />emergency spillway inlet as a result of the runoff from a 10-year, <br />24-hour precipitation event or less. <br />10 <br />