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Culvert 112 <br />Time of Concentration (SCS Method) <br />Curve Number: 78 <br />Length of Flow (ft): 3307.85 <br />Average Land Slope (percent): 7.1 <br />Time of Concentration (hrs): 0.55 <br />Graphical Peak Discharge <br />Project: NUCLA MINE By: GL <br />Location: CULVERT 112 Checked: <br />Present <br />1. Data: <br />Drainage area: .................... A = 114.6000 Acres <br />Runoff Curve Number: ............. CN = 78 <br />Time of Concentration: ........... Tc = 0.55 <br />Storm Type: ....................... = II <br />Pond and swamp areas spread <br />throughout watershed ............... = 1.00 percent of A <br />1.1460 Acres <br />2. Frequency ........................yr = 10 <br />3. Rainfall,P(24-hour).............. in = 2.00 <br />4. Initial abstraction, Ia............ = 0.5641 <br />5. Compute Ia/P....................... = 0.2821 <br />6. Unit peak discharge, qu...... csm/in = 429.02 <br />7. Runoff,Q.........................in = 0.4844 <br />8. Pond & swap adjustment factor,...Fp = 0.87 <br />9. Peak Discharge,gp...............cfs = 32.3750 <br />Date: 02/20/06 <br />Date: <br />Culvert 113 <br />These are 2 - 42" CMP's under 5`" Street which connect two parts of Pond 007. The Pond 007 <br />design shows how these culverts were designed. <br />Culvert 114 <br />This 42" CMP is where the CC Ditch overflow crosses the access road to get to the HDPE pipe <br />inlet from 2700 Road. The size of the culvert is based on the maximum ditch overflow. There is <br />no drainage basin into this culvert. <br />Culvert 115 <br />This is the 42" pipe which contains the HDPE pipeline under BB Detour Road. When the detour <br />is removed, this culvert will remain with a mound of dirt above since the pipeline is permanent. <br />Attachment 2.05.3(3)-1 Page 37 June 2016 (TR -73) <br />