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File: J:\OOJOBS\003-2166\SGOIMD2X 7/22/00, 7:54:1OPM <br />• Total Contributing Drainage Area: 6.1 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Trapezoidal Earthen Channel <br />Limiting Variable: Velocity = 5.500 fps <br />Sediment-laden Water <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (f t) (~) <br />------------------------------------------------- <br />8.22 10.0 2.5:1 2.5:1 10.0 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(f t) (fps) (ft) <br />----------------------------------------------- <br />------------------------- ------- -- -- <br />0.17 9.66 10.8 0.162 2.04 <br />w/ Freeboard: 0.17 10.8 <br />Runoff Peak Peak Sediment Peak Settleable <br />Volume Discharge Sediment Concentration Concentration 24VW 24AA <br />(ac-f t) (cfs) (tons) (mg/1) (ml/1) (ml/1) (ml/1) <br />IN/OUT 0.68 8.22 34.9 62152 23.85 12.50 4.27 <br />a++++++++aa+aaaa+aaaaaa+a++a+aa+a++++++a++aa++++++aa+aaa+++++a+++++aa++++aaa+aa <br />• Jl, B1, S3 <br />DSG1, 37C <br />Drainage Area from J1, B1, 53, SWS (s)1: 2.4 acres <br />Total Contributing Drainage Area: 8.6 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Trapezoidal Earthen Channel <br />Limiting Variable: Velocity = 5.500 fps <br />Sediment-laden Water <br />Design <br />Discharge <br />(cfs) <br />11.19 <br />Depth <br />(f t) <br />0.17 <br />w/ Freeboard: 0.17 <br />Bottom Manning's <br />width ZLeft ZRight Slope n <br />(ft) (~) <br />14.0 2.5:1 2.5:1 9.0 0.030 <br />Top Hydraulic Froude <br />Velocity width Radius Number <br />(fps) (f t) <br />4.51 _ 14.9 0.166 1.94 <br />14.9 <br />1/ J1 <br />u <br />