2021-09-03_PERMIT FILE - C1981019 ‎(5)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 9/3/2021
• Doc Name: Collom Haul Road Channel Configurations
• Type & Sequence: TR149
• Section_Exhibit Name: Exhibit 7, Item 25E
• 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)
#9 1 28.000 0.104 0.000 0.000 47.000 S 0.00 0.000
2 0.300 0.001 0.000 0.000 85.000 F 0.22 0.012
28.300 0.22 0.012
#5 28.300 0.22 0.012
#3 1 0.500 0.002 0.000 0.000 85.000 F 0.36 0.023
2 2.300 0.007 0.000 0.000 47.000 S 0.00 0.000
31.100 0.58 0.034
#8 1 4.100 0.123 0.000 0.000 85.000 F 2.99 0.222
4.100 2.99 0.222
#7 4.100 2.99 0.222
#10 1 17.800 0.082 0.000 0.000 47.000 S 0.00 0.000
2 0.400 0.001 0.000 0.000 85.000 F 0.29 0.017
18.200 0.29 0.017
#4 18.200 0.29 0.017
#6 22.300 3.28 0.240
#2 1 0.400 0.002 0.000 0.000 85.000 F 0.29 0.017
2 1.200 0.007 0.000 0.000 47.000 S 0.00 0.000
23.900 3.57 0.257
#1 55.000 4.16 0.292
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 49.00 24.99 51.00 7.000 0.002
#2 1 Time of Concentration:0.002
#2 2 3. Short grass pasture 37.00 49.95 135.00 4.860 0.007
#2 2 Time of Concentration:0.007
#3 1
5. Nearly bare and untilled, and
alluvial valley fans 47.50 25.17 53.00 6.890 0.002
#3 1 Time of Concentration:0.002
#3 2 3. Short grass pasture 24.60 25.09 102.00 3.960 0.007
#3 2 Time of Concentration:0.007
Filename: C-3 C-4 Channels 10-yr 24-hr.sc4 Printed 06-16-2021
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