Laserfiche WebLink
possible. The stage-discharge relationship of the emergency spillway <br /> inlet was calculated using SEDIMOT II, while the stage-discharge <br /> relationship of the principal spillway inlet was calculated using the <br /> orifice flow equation below: <br /> Q = C Ao 2gH <br /> where: <br /> Q = discharge in cfs <br /> C = coefficient of discharge = 0.6 <br /> Ao = cross sectional Area = 0.0055 ft.2 <br /> g = gravitational constant = 32.2 ft/sec.2 <br /> H = head (ft. ) = 0 to 8.0 ft. (above the opening) <br /> Elevation Q cfs <br /> 5694.0 0.0 <br /> 5696.0 0.04 <br /> 5698.0 0.05 <br /> 5700.0 0.06 <br /> 5701.0 0.07 <br /> 5702.0 0.07 <br /> Table 7 is a summary of the spillway data. <br /> TABLE 7 <br /> Spillway Data Summary <br /> Sediment Pond 005 <br /> Principal Spillway: Type . . . . . . . Riser Inlet (CMP) <br /> Orifice Diameter . . . 1.00-inch <br /> Inlet Elevation. . 5694.0 <br /> 10-year, 24-hour Peak <br /> Storage. . . . . . . . 5699.04 <br /> Emergency Spillway: Type . . . . . Drop Inlet (CMP) <br /> Barrel Diameter . . . 18.000-inch <br /> Riser Diameter . . . . 18.000-inch <br /> Length of Barrel . . . 80.000-ft <br /> Vertical Head Drop 4.000-ft. <br /> Entrance Loss Coef. 1.000 <br /> Bend Loss Coef. . 0.500 <br /> Wier Coef. . . . . . 3.100 <br /> Orifice Coef. 0.600 <br /> 10 <br />