2002-07-05_PERMIT FILE - C1996084A ‎(3)‎

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 7/5/2002
• Section_Exhibit Name: Exhibit 15-9b Fill 7 Sediment Control Pond 007a
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
8
•
Structure Detai/:
Structure #8 (Null1
D76: mined area on ridge
Structure #Z (Erodible Channel)
D73: upper west slope
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Bottom Lek Right Freeboard Freeboard Freeboard Limiting
sideslope Sideslope slope (%) Manning's n
Width (ft) Mult. x Velocity
Ratio Ratio Depth (k) %of Depth (VxD) (fps)
12.00 2.5:1 2.5:1 3.0 0.0300 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 39.38 cfs
Depth: 0.55 ft 0.85 k
Top Width: 14.75 ft 16.25 ft
Velocity: 5.36 fps
X-Section Area: 7.35 sq k
Hydraulic Radius: 0.491
Froude Number: 1.34
Structure #4 (Riorap Channel
74: 73, 076, west fit/ t sma/l west sws
Trapezoidal Riprap Channel Inputs:
Material: Riprap
'1
~p~ ~ s
Lek Right
Bottom Freeboard Freeboard Freeboard
sideslo a sideslo a sloe
Width (k)} p p p ( )
De th k %of De Mult. x
p ( ) pth
Ratio Ratio (VxD)
3.00 3.0:1 3.0:1 28.0 0.30
Riprap Channel Results:
PADER Method -Steep Slope Design
• ~w/o Freeboard w/ Freeboard/o Freeboard w/ Freeboard
Design Discharge: 48.21 6s
Filename: Rev100aPond007.sc4 Printed 01-07-2002