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11111 MIN Nil INS INI1 <br /> EN EN EN NM NM MIS <br /> • <br /> PROJ: JAMES MONROE ELEMENTARY PIPE SIZING <br /> WO: 26-09-040 (Runoff by Rational Method) Calculated by: M.A.D. <br /> DATE: 3/19/2010 (Pipe Capacity by Manning's Eqn.) Checked by: AM <br /> FILE: O:\091040_James Monroe Elem Modemization\Drainage\[StormTech Cumulative Storages Spreadsheet.xls)Cumulative Volumes Imperial Date Checked:3/25/10 <br /> Storm Table#: 30 Storm: SNOHOMISH 25 YEAR <br /> Inc. Time of Rain Pipe % Veloc Flow <br /> Area Runoff Sum Cone Intens Runoff n Diam Slope Length Capac Capac •Full Time Remarks <br /> From To (ac) Coef. A*C A*C • (min) (in/br) (cfs) Value (inch) (%) (feet) (cfs) Used (ft/sec) (min) • <br /> CB 7 CB 6 0.38 0.901 0.34 0.34 5.00 3.10 1.06 0.012 12 0-83' 48.0 3.52 30 4.48 0.18 <br /> • <br /> CB 10 CB 8 0,72 0.90 0.65 0,65;5.00 3.10 2.01 0.0121 12 1.10 84.0 4.051 50 5.15; 0.27• <br /> I <br /> CB 9 CB 8 0.46 0.901 0.41 0.41 5.00 3.10 1.28 0.012 121 1.251 29.0• 4.321 30 5.49 0.091 <br /> CB 112 CB 11 0.111 0.90 0.10 0.10 5.00 I 3.10 0.311 0.012 12 1.10 86.0 i 4.05. 8 5.15-- 0.281 <br /> CB 15B CB 15 .0.20 0.90 0.18' 0.18 5.00 3.10 0.56 0.012, .2r0.58; 52,01 2.94' 19 3.74' 0.23_ <br /> CB 15 CB 14 0.40 0.90 0.36 0.36 5.23 3.04 j 1.10 0.012 12 ry0.601 84.0 2.99 37! 3.81 0.37 <br /> • <br /> CO iCB 32 0.72 0.25 0.18 0.18 5.00 1 3.10 0.56 0.012 8 2.05 44.0 1.87' 301 5.371 0.14 • <br />• CB 32 CB 29 0.04, 0.25 0.01 0.19 5.14' 3.07 0.581 0.012 12 0.91 11.0 3.68 16f 4.69!. 0.041 <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> Page 2 of 2 <br />