2016-09-16_PERMIT FILE - M2016010

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Date: 9/16/2016
• Doc Name Note: Response #5
• Doc Name: Adequacy Review Response #5
• From: Transit Mix Concrete Co.
• To: DRMS
• Media Type: D
• Archive: No

Table A-3 (continued)
Watershed Travel Time Determination
Hitch Rack Ranch Quarry Project, El Paso County, Colorado
Sub-Basin Initial /Overland Remaining Travel Urban Check
Data Time (UDFCD Eq 6-3) Time (UDFCD Eq 6-4) Total Total Final
Drainage Area C(5) Length Max. Elev. Min. Elev. Slope T, Length Max. Elev. Min. Elev. Slope Coeff. Velocity Tt Time* Length L/180+10 Velocity TC
Basin ac (ft) (ft) (ft) N (min) (ft) (ft) (ft) N Value (fps) (min) (min) (ft) (min) (fps) (min)
Phase VI
B1 89.63 0.42 235 7820 7710 46.81 5.3 1960 7710 7200 26.02 5 2.55 12.8 18.1 2195 22.2 1.65 18.1
Cl 14.07 0.75 50 7020 7018 4.00 2.8 1090 7018 7010 0.73 5 0.43 42.4 45.2 1140 16.3 1.16 16.3
C2 2.21 0.75 250 7330 7240 36.00 3.1 1034 7240 7010 22.24 5 2.36 7.3 10.4 1284 17.1 1.25 10.4
C4 0.94 0.75 250 7200 6980 88.00 2.3 1033 6980 6920 5.81 5 0.94 18.3 20.6 1283 17.1 1.25 17.1
C5 34.02 0.45 400 7770 7550 55.00 6.3 1140 7550 7010 47.37 5 3.44 1 5.5 11.8 1540 18.6 1.38 11.8
K1 11.51 0.36 400 7380 7135 61.25 6.9 857 7135 7120 1.75 5 0.66 21.6 28.5 1257 17.0 1.23 17.0
L1 10.15 0.30 400 7800 7600 50.00 7.9 1040 7600 7110 47.12 5 3.43 5.1 13.0 1440 18.0 1.33 13.0
L2 29.33 0.23 400 7540 7460 20.00 11.7 2433 7460 7110 14.39 5 1.90 21.4 33.1 2833 25.7 1.83 25.7
N2 24.15 0.35 300 7560 7410 50.00 6.4 990 7410 6920 49.49 5 3.52 4.7 11.1 1290 17.2 1.25 11.1
Fla 9.23 0.37 300 7650 7480 56.67 6.0 1122 7480 7400 7.13 5 1.34 14.0 20.0 1422 17.9 1.32 17.9
T-1 4.09 0.37 300 7390 7290 33.33 7.2 670 7290 7120 25.37 5 2.52 4.4 1 11.6 1 970 1 15.4 1 1.05 11.6
T-2 4.82 0.37 300 7425 7280 48.33 6.3 645 7280 7220 9.30 5 1 1.52 7.0 13.4 945 15.3 1.03 13.4
T-3 6.30 0.37 300 7450 7400 16.67 9.0 1025 7400 7320 7.80 5 1.40 12.2 21.3 1325 17.4 1.27 17.4
Phase Reclaim
131 62.88 0.32 235 7820 7710 46.81 6.1 1960 7710 7200 26.02 5 2.55 12.8 18.9 2195 22.2 1.65 18.9
Cl 59.65 0.34 500 7770 7480 58.00 8.0 1800 7480 7010 26.11 5 2.55 11.7 19.8 2300 22.8 1.68 19.8
C2 16.34 0.35 250 7330 7240 36.00 6.6 1034 7240 7010 22.24 5 2.36 7.3 13.9 1284 17.1 1.25 13.9
L1 10.15 0.30 400 7800 7600 50.00 7.9 1044 7600 7090 48.85 5 3.49 5.0 12.9 1444 18.0 1.34 12.9
L2 29.33 0.23 400 7540 7460 20.00 11.7 2433 7460 7090 15.21 5 1.95 20.8 32.5 2833 25.7 1.83 25.7
N1 77.40 0.23 300 7870 7700 56.67 7.2 2942 7700 6960 25.15 5 2.51 19.6 26.7 3242 28.0 1.93 26.7
N2 24.15 0.29 300 7370 6960 136.67 5.0 250 6960 6920 16.00 5 2.00 2.1 7.1 550 13.1 0.70 10.0
N3 30.50 0.37 300 7370 6960 136.67 4.5 250 1 6960 6920 1 16.00 5 2.00 1 2.1 6.6 550 13.1 0.70 10.0
* If Total Time is less than 10 min, use 10 min
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