2021-09-03_PERMIT FILE - C1981019 ‎(6)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 9/3/2021
• Doc Name: Collom Haul Road Culverts
• Type & Sequence: TR149
• Section_Exhibit Name: Exhibit 7, Item 25F
• Media Type: D
• Archive: No

Subwatershed Hydrology Detail:
Stru
#
SWS
#
SWS Area
(ac)
Time of
Conc
(hrs)
Musk K
(hrs)Musk X Curve
Number UHS
Peak
Discharge
(cfs)
Runoff
Volume
(ac-ft)
#2 1 10.900 0.008 0.000 0.000 85.000 F 7.95 0.591
2 0.050 0.017 0.000 0.000 63.000 M 0.00 0.000
3 1.800 0.016 0.000 0.000 63.000 M 0.02 0.004
4 0.500 0.007 0.000 0.000 63.000 M 0.00 0.000
5 0.900 0.023 0.000 0.000 63.000 M 0.01 0.000
6 20.700 0.107 0.000 0.000 73.000 M 5.52 0.407
7 13.300 0.071 0.000 0.000 73.000 M 3.54 0.261
8 3.900 0.011 0.000 0.000 85.000 F 2.84 0.212
9 23.700 0.176 0.000 0.000 73.000 M 3.11 0.378
10 0.100 0.017 0.000 0.000 57.000 M 0.00 0.000
11 1.100 0.006 0.000 0.000 85.000 F 0.80 0.059
12 0.100 0.017 0.000 0.000 63.000 M 0.00 0.000
13 0.200 0.034 0.000 0.000 63.000 M 0.00 0.000
14 4.600 0.065 0.000 0.000 63.000 M 0.06 0.023
15 1.500 0.029 0.000 0.000 63.000 M 0.02 0.002
16 1.200 0.023 0.000 0.000 63.000 M 0.01 0.000
17 0.900 0.028 0.000 0.000 57.000 M 0.00 0.000
18 40.900 0.174 0.000 0.000 73.000 M 5.38 0.653
19 1.200 0.032 0.000 0.000 63.000 M 0.01 0.000
20 0.100 0.006 0.000 0.000 63.000 M 0.00 0.000
21 0.200 0.007 0.000 0.000 57.000 M 0.00 0.000
22 1.100 0.003 0.000 0.000 85.000 F 0.80 0.059
128.950 26.95 2.651
#1 128.950 26.95 2.651
Subwatershed Time of Concentration Details:
Stru
#
SWS
#Land Flow Condition Slope (%)
Vert. Dist.
(ft)
Horiz. Dist.
(ft)
Velocity
(fps)Time (hrs)
#2 1
5. Nearly bare and untilled, and
alluvial valley fans 55.20 124.97 226.40 7.420 0.008
#2 1 Time of Concentration:0.008
#2 2 3. Short grass pasture 1.00 0.50 50.00 0.800 0.017
#2 2 Time of Concentration:0.017
#2 3 3. Short grass pasture 29.40 74.94 254.90 4.330 0.016
#2 3 Time of Concentration:0.016
#2 4 3. Short grass pasture 58.00 99.99 172.40 6.090 0.007
Filename: Exhibit 24 Item 1 36 Inch Culvert Design.sc4 Printed 06-15-2021
SEDCAD 4 for Windows
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