2010-12-08_PERMIT FILE - C1981008 ‎(8)‎

• Permit No: C1981008
• IBM Index Class Name: Permit File
• Doc Date: 12/8/2010
• Doc Name: Sediment Pond 012 Engineering Design
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-12
• Media Type: D
• Archive: No

• SEDCAD 4 for Windows
6
Structure Detail;
Structure #1 (Pond)
Pond Inputs:
*No sediment capacity derrned
Perforated Riser
Riser
Riser Height
Barrel
Barrel Barrel Slope
Number of
Diameter
ft
()
Diameter
Length (ft) (°lo)
M anning's n Spillway Elev Holes per
(in)
(in)
Elev
18.00 5.001
18.00 100.00 0.01
0.0150 5,608.00 1
•
Elevation - Capacity - Discharge Table
Elevation
Area
(ac)
Capacity
(ac-ft)
Discharge
(cfs)
Dewater
Time
(hm)
5,60100
0.515
0.000
0.000
Top of Sed. Storage
5,603.50
0.5
0.266
0.
5,604.00
0.584
0.5
0.
S,604.50
0.611
0.848
0.000
Low h SPW #1
5,605.00
0.63
1.160
0.000
5,605.50
0.669
1.487
0.000
5,606.00
0.700
1.829
0.000
5,606.50
........... _._.
0.710
2.181
0.000
5,607.00
_0.720
2.539
5,607.50
....
0.7
2.906
- - - 0.000
0.000
------ _- _____ .............. __ .... _._.
5,6 08.OD
0.781
3.289
0.000
Spillway #1
5,608.23
0.790
3.468
2.333
13.90 Peak Stage
5,608.50
5,609.00
0.805
0.830
3.686
4.094
5.165
8.509
Pond Results:
Permanent Pool Elev:
5,604.50
Permanent Pool:
0.85 ac-ft
*Sediment Storage:
0.00 ac -ft
�......._._._.__ Dead Space:
20.00%
Peak Elevation:
5,608.23
H'graph Detention Time:
4.38 hrs
Dewater Time:
0.58 days
Trap Efficiency:
94.93%
Dewatering time is calculated from peak stage to lowest spillway
Filename- 012POND 25YR DESIGN.sc4
• Revised January 2010 (PR06) Attachment 2.05.3(3) -12 -9
Printed 11-09 -2004