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Index Hall Replacement: Building Site Flow Control Calculations <br /> Bottom Width : 10ft. <br /> Trench bottom slope 1: 0.1 To 1 <br /> Trench Left side slope 0: 3 To 1 <br /> Trench right side slope 2: 3 To 1 <br /> Material thickness of first layer : 1.5 <br /> Pour Space of material for first layer 0.2 <br /> Material thickness of second layer : 0 <br /> Pour Space of material for second layer : 0 <br /> Material thickness of third layer : 0 <br /> Pour Space of material for third layer : 0 <br /> Infiltration On <br /> Infiltration rate : 0.1 <br /> Infiltration saftey factor : 1 <br /> Discharge Structure <br /> Riser Height: 2 ft. <br /> Riser Diameter: 6 in. <br /> Element Flows To: Gravel Trench Bed 1 outlets to Gravel Trench Bed 2 <br /> Outlet 1 Outlet 2 <br /> Gravel Trench Bed 2, (the Detention/Infiltration Pipe). See below. <br /> Gravel Trench Bed 1 <br /> Gravel Trench Bed Hydraulic Table <br /> Stage(ft) Area(acr) Volume(acr-ft) Dschrg(cfs) Infilt(cfs) <br /> 0.000 0.011 0.000 0.000 0.000 <br /> 0.028 0.012 0.000 0.000 0.001 <br /> 0.056 0.012 0.000 0.000 0.001 <br /> 0.083 0.012 0.000 0.000 0.001 <br /> 0.111 0.012 0.000 0.000 0.001 <br /> 0.139 0.012 0.000 0.000 0.001 <br /> 0.167 0.013 0.000 0.000 0.001 <br /> 0.194 0.013 0.000 0.000 0.001 <br /> 0.222 0.013 0.001 0.000 0.001 <br /> 0.250 0.013 0.001 0.000 0.001 <br /> 0.278 0.013 0.001 0.000 0.001 <br /> 0.306 0.014 0.001 0.000 0.001 <br /> 0.333 0.014 0.001 0.000 0.001 <br /> 0.361 0.014 0.001 0.000 0.001 <br /> 0.389 0.014 0.001 0.000 0.001 <br /> 0.417 0.014 0.001 0.000 0.001 <br /> 0.444 0.015 0.001 0.000 0.001 <br /> 0.472 0.015 0.001 0.000 0.001 <br /> 0.500 0.015 0.001 0.000 0.001 <br /> 0.528 0.015 0.001 0.000 0.001 <br /> 0.556 0.015 0.001 0.000 0.001 <br /> 0.583 0.016 0.002 0.000 0.001 <br /> 0.611. 0.016 0.002 0.000 0.001 <br /> 0.639 0.016 0.002 0.000 0.001 <br /> 0.667 0.016 0.002 0.000 0.001 <br /> • <br /> 0.694 0.016 0.002 0.000 0.001 <br /> 0.722 0.016 0.002 0.000 0.001 <br /> 0.750 0.017 0.002 0.000 0.001 <br /> 0.778 0.017 0.002 0.000 0.001 <br /> 0.806 0.017 0.002 0.000 0.001 <br /> 0.833 0.017 0.002 0.000 0.001 <br /> 2 B-1 <br />