2009-09-04_PERMIT FILE - C1982056 ‎(4)‎

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 9/4/2009
• Doc Name: MAIN NORTH INTAKE SHAFT
• Section_Exhibit Name: Exhibit 08X 6-ain North Intake Shaft Drainage Designs
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
f:— inhf 1 OOA -oM7 P-1. 1 Crh,.,nh
5
•
Structure Detail;
Structure #2 (Erodible Chann el)
Perimeter Drainage Ditch 2
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
9
Freeboard
Freeboard Freeboard
Limiting
� g
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
3.0:1 3.0:1 6.6 0.0350
0.30
5.0
Erodible Channel Results:
Ll
Structure #1 (Erodible Channel)
Perimeter Drainage Ditch 1
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
0.47 cis
Depth
0.25 ft 0.55 ft
To p Widt
1.47 ft 3.27 ft
Velocity:
2 .61 fps
X- Sect ion Area:
0.18 sq ft
Hydraulic Radius:
Froude Number:
0.116 ft
1.31
Structure #1 (Erodible Channel)
Perimeter Drainage Ditch 1
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
, Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
3.0:1 3.0:1 6.8 0.0350
0.30
5.0
Erodible Channel Results:
0
Filename: 25 yr 24 hr Perimeter Drainage Ditches with Vegetated Spillway Channel.sc4 Printed 04 -24 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
6.5 c
Depth:
0.65 ft 0.95 ft
— — Top Width:
Velocity:
— - — 3.92 ft 5. ft
5.09 f
X- Section Area
1.28 sq ft
Hydraulic Radius:
0.310 ft
Filename: 25 yr 24 hr Perimeter Drainage Ditches with Vegetated Spillway Channel.sc4 Printed 04 -24 -2009