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. Eln. Elev. Slope T; Length Max. Elev. Min. Elev. Slope Coeff. Velocity Tt Time* Length L/180+10 Velocity TC
ev. Mi
Basin ac (ft) (ft) (ft) N (min) (ft) (ft) (ft) N Value (fps) (min) (min) (ft) (min) (fps) (min)
Phase II
Al 4.76 0.65 200 7140 7120 10.00 5.4 160 7120 7030 56.25 5 3.75 0.7 6.1 360 12.0 0.50 10.0
A2 57.88 0.34 300 7720 7560 53.33 6.4 3410 7560 7130 12.61 5 1.78 32.0 38.4 3710 30.6 2.02 30.6
61 18.24 0.32 300 7380 7270 36.67 7.4 1530 7270 7000 17.65 5 2.10 12.1 19.6 1830 20.2 1.51 19.6
N1 77.21 0.29 300 7870 7700 56.67 6.7 2942 7700 6990 24.13 5 2.46 20.0 26.6 3242 28.0 1.93 26.6
N2 34.18 0.34 300 7570 1 7434 45.33 6.8 1769 7434 1 7000 24.53 5 2.48 11.9 18.7 2069 21.5 1.60 18.7
Phase III
A2 57.62 0.38 300 7720 7560 53.33 6.1 4625 7560 7130 9.30 5 1.52 50.6 56.6 4925 37.4 2.20 37.4
61 20.29 0.34 300 7380 7270 36.67 7.2 1530 7270 7000 17.65 5 2.10 12.1 19.4 1830 20.2 1.51 19.4
B2 37.59 0.16 235 7820 7710 46.81 7.3 2120 7710 7120 27.83 5 2.64 13.4 20.7 2355 23.1 1.70 20.7
N2 24.45 1 0.42 300 7370 1 6960 136.67 1 4.2 250 6960 1 6920 16.00 5 2.00 2.1 6.3 550 13.1 0.70 10.0
N3 30.92 0.59 110 7340 7290 45.45 2.7 1854 7290 1 6920 19.96 5 2.23 13.8 16.6 1964 20.9 1.57 16.6
Phase IV
Al 4.32 0.64 200 7210 7120 45.00 3.3 400 7120 7030 22.50 5 2.37 2.8 6.2 600 13.3 0.75 10.0
A2 58.45 0.48 300 7720 7560 53.33 5.2 3410 7560 7130 12.61 5 1.78 32.0 37.2 3710 30.6 2.02 30.6
131 24.41 0.37 300 7380 7270 36.67 7.0 1530 7270 7000 17.65 5 2.10 12.1 19.1 1830 20.2 1.51 19.1
B2 34.27 0.16 235 7820 7710 46.81 7.3 1960 7710 7200 26.02 5 2.55 12.8 20.1 2195 22.2 1.65 20.1
K1 13.24 0.71 400 7380 6970 102.50 3.1 1120 6970 6920 4.46 5 1.06 17.7 20.7 1520 18.4 1.37 18.4
L1 39.48 0.33 400 7800 7600 50.00 7.6 1785 7600 6960 35.85 5 2.99 9.9 1 17.6 2185 22.1 1.64 17.6
N1 77.40 0.26 300 7870 7700 56.67 6.9 2942 7700 6990 24.13 5 2.46 20.0 26.9 3242 28.0 1.93 26.9
N2 24.47 0.42 300 7370 1 6960 136.67 4.2 250 6960 6920 16.00 1 5 1 2.00 2.1 6.3 1 550 1 13.1 1 0.70 1 10.0
N3 28.45 0.75 300 1 7370 6960 136.67 2.2 250 6960 6920 16.00 5 2.00 2.1 4.2 550 13.1 0.70 10.0
Phase V
131 89.30 0.46 235 7820 7710 46.81 5.0 1960 7710 7200 26.02 5 2.55 12.8 17.8 2195 22.2 1.65 17.8
C1 6.77 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
C5 20.15 0.22 400 7770 7550 55.00 8.5 1140 7550 7010 47.37 5 3.44 5.5 14.0 1540 18.6 1.38 14.0
K1 12.3 1 0.70 400 7380 6970 102.50 3.1 1120 6970 6920 4.46 5 1.06 17.7 20.8 1520 18.4 1.37 18.4
L1 10.15 0.43 400 7800 7600 50.00 6.7 1040 7600 7110 47.12 5 3.43 5.1 11.7 1440 18.0 1.33 11.7
L2 29.33 0.29 400 7540 7460 20.00 10.9 2433 7460 7110 14.39 5 1.90 21.4 32.3 2833 25.7 1.83 25.7
N1 24.16 0.41 300 7870 7700 56.67 5.7 2942 7700 6960 25.15 5 2.51 19.6 25.2 3242 28.0 1.93 25.2
N2 30.50 0.75 1 300 7370 1 6960 1 136.67 1 2.2 1 250 1 6960 6920 16.00 5 2.00 2.1 4.2 550 1 13.1 1 0.70 1 10.0
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