2007-12-17_PERMIT FILE - C1981020A ‎(6)‎

• Permit No: C1981020A
• IBM Index Class Name: Permit File
• Doc Date: 12/17/2007
• Section_Exhibit Name: Appendix M‎(vii)‎ to M‎(viii)‎ Hydrologic Data
• Media Type: D
• Archive: Yes

SEDCAD 4.0
/`nnwinM 1°°R_9M9 Oamnh ~ CrMwF
1
•~ EMERGENCY SPILLWAY -Gob Pond - 25 Year Event -
Interim Configuration
Culvert Inputs:
Max. Tailwater Ent2nce
Length (R) slope (%) Manning's n Headwater Loss Coef.
(ft) (R) (Ke)
80.00 2.00 0.0240 1.50 0.00 0.90
Culvert Results:
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Detai/ed Performance Curves
Design Discharge = 5.69 cfs
Maximum Headwater = 1.50 ft
(BOLD indicates design pipe size)

Headwater -
(R) Discharge
. (cfs)

( 18 in) - Discharge
_ (~) _ _

(211n) Discharge
(~)

(24 in)
0.15 0.20 0.30 0.24
0.30 0.52 0.60 0.70
0.45 0.96 1.11 1.27
0.60 1.47 1.71 1.95
0.75 2.04 2.38 2.72
0.90 2.68 3.13 3.58
1.05 3.38 3.94 4.51
1.20 4.13 4.82 5.51
1.35 4.93 5.75 6.57
1.50 5.33 6.73 7.69
1.65 5.68 7.77 6.88
1.80 6.62 8.66 10.11
1.95 8.14 8.94 11.40
2.10 8.41 9.60 12.74
2.25 8.68 11.90 13.29
SEDCAD Utility Run
Printed 03-22-2007
M(vii)-30