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<br />Table TR 90-06-5 <br />SEDIMENTATION POND "M3-S" - OUTLET WORK DESIGN <br />• <br />• <br />10 Year - 24 Hour Event Elevation (feet) <br />Outlet Culbert Invert Elevation (feet) <br />Maximum Outlet Head (h in feet) <br />Culvert End Area (a in sq feet) <br />Entrance Head Loss (Ke) <br />Bend Head Loss (Kb) <br />Friction Head Loss (Kc) <br />Culbert Length (L in feet) <br />Q = a(2gH)0.5 ~ (1+Ke+Kb+KcL)0.5 <br />10 Year - 24 Hour Event Storage Volume (acre feet) <br />(cu-ft) <br />Avg. Head = (1/2) 2.9 = 1.45, Q = 1.51 cfs <br />295,644 cu feet/1.51 cfs/3,600 sec/hr = 55 hrs <br />Minimum Theoretical Detention Time (hours) <br />MR 90-06 <br />Exhibit 3 - 22 <br />6,672.9 <br />6,670.0 <br />2.9 <br />0.79 <br />1.00 <br />0.00 <br />0.1151 <br />200 <br />6.31 <br />296,644 <br />55 <br />11/16/90 <br />0 I.0 20 ~•~ <br />