PERMFILE41445

• Permit No: C1981038
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2004
• Section_Exhibit Name: Volume 8 Surface Drainage - Culvert Capacities
• Media Type: D
• Archive: No

SEDCAD+ CULVERT SIZING UTILITY
ORCHARD VALLEY CULVERTS "N1" 100 YEAR
Design Discharge = 17.350 cfs
Entrance Loss Coefficient = 0.9
Pipe Length 40.000 feet
Pipe Slope 10.000 %
Manning's n = 0.024
Maximum Headwater = 3.000 feet
Tailwater Depth = 0.000 feet
Smallest Diameter Required to Pass Flow is 24 inches
PERFORMANCE CURVES:
Diameter: 21 inches
Headwater Discharge Flow
(ft)
------
----- (cfs)
-------
-
- Contr
-------- ol
---------------- Type
------
-
--
0.30 -
--
0.71 Outlet (Subcritical) --
2
0.60 1.73 Inlet (Supercritical) 3
0.90 3.13 Inlet (Supercritical) 3
1.20 4.82 Inlet (Supercritical) 3
1.50 6.74 Inlet (Supercritical) 3
1.80 8.85 Inlet (Supercritical) 3
2.10 10.97 Inlet 5
2.40 12.77 Inlet 5
2.70 14.35 Inlet 5
3.00
------------- 15.78
------------ Inlet
--------
---------------- 5
---------
------------- ------------
Diameter: --------
24 inc ----------------
hes ---------

Headwater Discharge Flow
(ft) Icfs) Contr ol Type
-------------
0.30 ------------
0.78 --------
Outlet ----------------
(Subcritical) ---------
2
0.60 1.95 Inlet (Supercritical) 3
0.90 3.59 Inlet (Supercritical) 3
1.20 5.51 Inlet (Supercritical) 3
1.50 7.70 Inlet (Supercritical) 3
1.80 10.11 Inlet (Supercritical) 3
2.10 12.75 Inlet (Supercritical) 3
2.40 15.40 Inlet (Supercritical) 4
2.70 17.54 Inlet 5
3.00
-------------
------------- 19.52
------------
------------ Inlet
--------
--------
-----------------
----------------- 5
--------
--------
Diameter: 30 inches
Headwater Discharge Flow
(ft)
-----
- (cfs)
--- Control
-
--
-- Type
----
--
-------
0.30 ------
---
0.90 ----
---
Inlet ---
-------
---
(Supercritical) -
-
3
0.60 2.45 Inlet (Supercritical) 3
0.90 4.48 Znlet (Supercritical) 3
1.20 6.88 Inlet (Supercritical) 3
1.50 9.62 Inlet (Supercritical) 3
.
1.80 12.64 Inlet (Supercritical) 3
2.10 15.93 Inlet (Supercritical) 3

c- z.