2009-09-21_PERMIT FILE - C1981010A ‎(48)‎

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 9/21/2009
• Doc Name: Horse Gulch Fill Diversion Ditch Designs
• Section_Exhibit Name: Appendix T
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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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)
#3 1 2.600 0.059 0.000 0.000 87.000 F 2.95 0.231
2.600 2.95 0.231
#2 1 5.700 0.114 0.000 0.000 87.000 F 6.46 0.506
5,700 6.46 0.506
#1 1 9.700 0.209 0.000 O.D00 87.000 F 9.06 0.860
9.700 9.06 0.860
#4 1 7.300 0.093 0.000 0.000 87.000 F 8.28 0.648
2 2.200 0.027 0.000 0.000 87.000 F 2.49 0.195
3 1.400 0.019 0.000 0.000 87.000 F 1.59 0.124
28.900 29.73 2.564
Subwatershed Time of Concentration Details:
•
•
Stru # SWS
# Land Flow Condition Slope (%) Vert. Dist.
(ft) Horiz. Dist.
(ft) Velocity (fps) Time (hrs)
#1 1 5. Nearly bare and untilled, and
alluvial valley fans 11.11 50.00 450.00 3.330 0.037
6. Grassed waterway 2.00 26.40 1,320.00 2.120 0.172
#1 1 Time of Concentration: 0.209
#2 1 5. Nearly bare and unfilled, and
alluvial valley fans 30.30 100.00 330.00 5.500 0.016
6. Grassed waterway 2.00 15.00 750.00 2.120 0.098
#2 1 71me of Concentration: 0.114
#3 i 5. Nearly bare and unfilled, and alluvial valley fans 30.30 100.00 330.00 5.500 0.016
6. Grassed waterway 2.00 6.60 330.00 2.120 0.043
#3 1 Time of Concentration: 0.059
#4 1 5. Nearly bare and untilled, and
alluvial valley fans 10.42 25.00 240.00 3.220 0.020
6. Grassed waterway 17.86 300.00 1,680.00 6.330 0.073
#4 1 Time of Concentration: 0.093
#4 2 6. Grassed waterway 15.83 95.00 600.00 5.960 0.027
#4 2 Time of Concentration: 0.027
#4 3 6. Grassed waterway 20.83 100.00 480.00 6.840 0.019
#4 3 Time of Concentration: 0.019
Filename: NHGF Diversions May 2009.sc4
Printed 05-11-2009
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