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Top Hydraulic Froude Depth Velocity Width Radius Number (ft) (fps) (ft) ------ ------ 0.07 ------------------- ------------------- 7.71 12.3 ---------------------- ---------------------- 0.072 5.05 w/ Freeboard: 0.07 12.3 Runoff Peak Volume Discharge (ac-ft) ------------------- -- -- --- --- (cfs) ---------- - - - - - --- -- - -- IN/OUT 0.53 - - - --- 6.88 J2, B1, 52 REACH THRU SPOIL Drainage Area from J2, B1, S2, SWS(s)1: 2.9 acres Total Contributing Drainage Area: 51.5 acres MATERIAL: SPOIL WITH SHALE/ROCK Triangular Earthen Channel Limiting Variable: Velocity = 7.000 fps Sediment-laden Water Design Bottom Manning's Discharge Width ZLeft ZRight Slope n (cfs) (ft) (~) -- - - • - - ---------------------------------- 7.90 3.0:1 3.0:1 21.7 --------- 0.045 Top Hydraulic Froude Depth Velocity Width Radius Number (ft) (fps) (ft) -------------------------------------- -------------------------------------- --------- --------- 0.62 6.82 3.7 0.295 2.16 w/ Freeboard: 0.62 3.7 ~ Runoff Peak Volume Discharge (ac-f t) (cfs) ----------------------------- ---- -------------- -------- - - - IN/OUT 0.60 7.90 *:r****,r~***,r********,t***,t*****,t*,t,r~,t******,r*****,t**~*,t~t*****,t***************** J2, Bl, 53 INTO MAIN CHANNEL Drainage Area from J2, B1, S3, SWS(s)1: 8.0 acres Total Contributing Drainage Area: 59.5 acres MATERIAL: TALL FESCUE Triangular Vegetated Channel Limiting Variable: Velocity = 9.000 fps Design Bottom Discharge Width ZLeft ZRight Slope (cfs) (ft) (~) ---------------------------- -- 9.65 3.0:1 3.0:1 14.0 7-6-3-35 Revised 08/20/93