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Sheer I OT3. STORM DRAINAGE CALCULATIONS Ir Ir BY THE RATIONAL FORMULA METHOD r LOVELACE RAOD TRANSFER STATION PROJECT NO.07549-001-14 1-03 BY.MARK URQUHART HDR ENGINEERING 12-Jan-93 100 YEAR STORM USING SAN JOAQUIN COUNTY IFD CURVE STORM DRAINAGE CALCULATIONS BY THE RATIONAL FORMULA METHOD LOVELACE RAOD TRANSFER STATION PROJECT NO.07549-001-141-03 BY:MARK URQUHART HDR ENGINEERING 12-Jon-93 e:ssasssaassasasassaassassaeaasssaa Y.E.A.R. .TORI USMG.....aOassQ=mesaC....sa.=Das....VE==s=saaaa ease:ease teas:ease as=ses:as s=an=s=:s==:sas3ss=sa==sses a:s::ase==ease:alas AREA(ACRES) TIME OF CONCENTRATION COMPO- PAVED ROOF DIRT UWD• TOTAL SITE i CRITICAL TIME TO INLET IN SUBAREA INTENSITY PEAK (P) (R) (D) SCAPE(L) AREA RUNOFF HIGH LOW 1 RUNOFF RUNOFF COEFFICIENT C= COEFF. C L PT PT SLOPE TI(1) (INIHR) Q-CW BASIN NO. BASIN NO. 0.95 0.8 0.75 0.2 Cs 00 (It) (R) (%) mks min (100 YR) (els) 2 2 0.06 0.03 0.09 0.88 0.88 60 28.3 27.7 1.00% 102 2.22 0.18 3 3 0.67 0.07 0.74 0.94 0.94 160 28.0 26.0 1.25% 10 2.22 1.54 4 4 0.31 0.08 0.39 0.80 0.80 280 28.0 27.1 0.32% 19 2.22 0.69 5 5 025 0.25 0.95. 0.95 140 28.9 27.1 1.28% 10 2.22 0.53 8 6 0.75 0.07 0.82 0.94 0.94 300 28.0 26.0 0.67% 10 2.22 1.71 7 7 0.02 1.06 0./ 1.18 0.75 0.75 200 roof 27.0 10 2 2.22 1.97 8 8 0.16 0.16 0.95 0.95 100 28.0 27.0 1. 10 2.22 0.34 9 9 0.35 0.35 0.95 0.95 200 28.0 25.0 1.50% 10 2.221 0.74 t0 10 0.19 0.19 0.95 0.95 1001 26.01 24.0 200%I 10 1 2.22 0.40 11 11 0.02 0.14 t 0.28 0.29 100 7.7 26.8 0.90% 10 2 2.22 0.10 12 12 0.29 0.09. 0.36 0.90 0.90 330 28.9 24.8 1.24% 10 2 2.22 0.78 13 13 0.34 0.16 0.50 0.89 0.89 3301 28.9r-24.81 1.24%1 2.22 0.98 14 14 0.36 0.01 0.37 0.94 0.94 220 28.0 24.8 1.45% 10 2.22 0.78 t5 15 0.74 0.13 0.87 0.93 0.93 160 28.0 25.0 1.88% 10 .22 1.79 16 16 0.28 0.21 0.16 0.65 0.85 0.85 240 28.3 23.7 1.92141 101 2.22 1. 17 17 0.17 0.1 0.27 0.87 0.67 10 2 2.22 0.40 18 18 0.27 r' 0.49 0.71 1.47 0.80 0.80 460 28.0 11.0 3.70% t0 8R 2.22 2.62 19 19 0.05 0.03 0.06 0.67 0.67 150 31.1 24.8 4.13% 10 2.22 0.12 20 20 0.12 0.12 0.24 0.58 0.58 180 27.5 24.1 1.89% 10 2.22 0.31 21 21 0.1 068 0.36 1.14 0.80 0.80 310 roof 24.1 10 _ 2.22 2.02 22 22 0.09 0.13 0.06 0.28 0.84 0.84 310 roof 27.1 t0 2.22 0.52 23 23 0.44 0.12 0.15 0.71 0.76 0.76 250 24.5 18.0 2.60% t0 2 _ 2.22 1.19 24 24 0.06 0.16 0.97 1.19 0.77 0.77 240 24.5 17.9 2.75% 10 222 2.03 25 25 0.12 0.1 0.22 0.61 0.61 330 27.3 24.1 0.97% 10 2 222 0.30 26 26 0.14 0.07 0.21 0.70 0.70 330 27.3 24.1 0.97% 10 2.22 0.33 POND POND 1.24 PIPE PIPE 0.05 0.05 0.16 0.26 0.80 0.80 160 32.0 25.0 4.38% 10 2.22 0.46 TOTAL 3.26 TOTAL 3.28 6.34 3.05 2.8 1 0.891 14.41 29.8 Perimeter Ifir go to slope 0-site. 0.46 SITE TOTAL SITE TOTAL 14.87 acres 4. 1 from rs D-5 Min Inlel time of 10 an used .31.