PERMFILE65712

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 3/1/2005
• Doc Name: Hubbard Creek Fansite Ditches HCD-1, HCD-4, Culvert HCC-1, Sediment Pond F /25yr 24hr
• Section_Exhibit Name: Exhibit 2.05-E3 Section 10oo
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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11
Subwatershed Hydro%gy Detai/;

Stru
#
SWS
# SWS Area

(ac) Time of
Cons

(hrs) Musk K

(hrs)
MuskX Curve

Number
UHS Peak
Discharge

(~) Runoff
Volume

(ac-R)
#6 1 1.390 0.008 0.007 0.438 63.000 M 0.29 0.025
2 1.210 0.004 0.013 0.411 90.000 F 1.76 0.145
2.600 2.06 0.170
#2 1 1.390 0.033 0.014 0.178 90.000 M 2.02 0.167
1.390 2.02 0.167
#3 ~ 3.990 4.08 ~ 0.337
#4 1 3.590 0.013 0.000 0.457 63.000 M 0.76 0.063
7.580 4.84 0.400
Subwatershed Sedimento%gy Detai/;

Stru
#
SWS
#

Soil K

L (ft)

5 (%)

C

P

PS #
Sediment

(tons) Peak
Sediment
Conc.

(mg/I) Peak
Settleable
Conc

(ml/I)
24VW

(ml/I)
#6 1 0.370 100.00 75.00 0.0380 1.0000 1 1.0 77,206 22.58 6.65
2 0.370 20.00 220.00 0.9000 1.0000 1 lOZ.B 693,002 202.70 118.84
103.8 662,932 193.90 104.16
#2 1 0.370 300.00 68.00 1.0000 0.0380 1 15.5 120,135 35.14 19.34
15.5 120,024 35.05 19.29
#3 ~', 119.4 406,465 118.86 66.45
#4 1 0.370 100.00 75.00 1.0000 0.0380 1 2.9 66,196 25.21 9.68
122.2 403,343 117.95 57.80
Subwatershed Time of Concentration Detai/s:
Stru SWS Land Flow Condition Slope (%) Vert. Dist. Horiz. Dis[. Velocity Time (hrs)
# # (R) (R) (fps)
5. Nearly bare and untitled, and
#2 1
alluvial valley fans 28 57 20.00 70.00 5.340 0.003
8. Large gullies, diversions, and low

Flowing streams 5.75 46.00 800.00 7.190 0.030
#2 1 Time of Concentration: 0.033
#4 1 3. Short grass pasture 80.00 80.00 100.00 7.150 0.003
6. Large gullies, diversions, and low 68.85 630.00 915.00 24.890 0
010
flowing streams .
Filename: Pond3-25YR.sc4 Printetl 02.76-2005