2011-06-29_PERMIT FILE - C1981019A ‎(19)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: West Taylor Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part C -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
rn ,e-M 400Q 9M) D -1- I Crh--K
Structure #8 [Pond)
West Taylor Pond
Pond Inputs:
Initial Pool Elev:
w/o Freeboard w/ Freeboard
Design Discharge:
30.53 cfs
Depth:
0.36 ft 1.36 ft
Top Width:
14.14 ft 20.14 ft
Velocity:
6.55 fps
X- Section Area:
4.66 sq ft
Hydraulic Radius:
0.327 ft
Froude Number:
2.01
Manning's n:
0.0540
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Initial Pool Elev:
7,468.00 ft
Initial Pool:
1.76 ac -ft
*Sediment Storage:
0.00 ac -ft
Dead Space:
20.00%
*No sediment capacity defined
Perforated Riser
Riser Riser Height
Diameter
Barrel Barrel Barrel Slope
Diameter
Spillway Elev Number of
Manning's n Holes per
(ft)
(in)
Length (ft) ( %)
(in)
(ft)
Elev
18.00 16.00
18.00 150.00 2.00
0.0150 7,471.00 2
Pond Results:
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,476.00 30.00 2.00:1 2.00:1 30.00
Peak Elevation: 7,475.57 ft
H'graph Detention Time:
2.84 hrs
Pond Model:
CSTRS
Dewater Time:
1.50 days
Trap Efficiency:
19.01
Dewatering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
24
Filename: WestT Pond I024.sc4 Printed 05 -31 -2010
Exh. 7 -20C -106 Revision Date: 5/31/10
Revision No.: TR -81