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REVISED <br />8/8/85 <br />' i-~ Table 1 <br />SEDIMENTATION POND E DESIGN SPECIE N~S1~ <br />1 <br />' - Sedimentation pond design to contain 10-year, 24-hour event. <br /> - Emergency spillway designed for 25-year, 24-hour event. / <br />' - Antecedent moisture condition II. / / <br /> -Weighted curve number is 82./ <br /> - Drainage area is 35 ac.-/ <br />' - Disturbed area is 24 ac. / <br /> - Runoff volume is 1.52 ac-ft.~ <br /> s <br />' - Sediment volume is 0.64 ac-ft.' <br /> - Total volume is 2.16 ac-ft./• <br />' - Emergency spillway height above bottom of natural channel is less than ~ <br /> 10 ft. <br /> - Relative elevation top of dam is 57.0 ft J <br />' - Relative elevation crest of emergency spillway is 55.5 ft.~ <br />_ - Depth of flow and velocity of flow in emergency spillway for design <br />. <br />` <br />event is 0.5 ft. and 5.2 fps respectively r~ <br /> - Relative elevation top of decant is 55.0 ft. ~~~5~" w~(v .~s.r' <br />' - Relative elevation dewatering hole is 51.8 ft. 5 ~.9 <br /> - Diameter of dewatering hole is 2.0 in. J <br />' - Total detention time is 34 hrs. 3~ /IO~tr'S <br /> <br />1 <br /> <br /> <br />1 `~ <br /> <br />-7- <br />