PERMFILE61192

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 9/14/2005
• Section_Exhibit Name: Exhibit 8x 6 Main North Intake Shaft Drainge & Sed Control System Design
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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7
l Structure Detai/:
,l Structure #Z (vegetated Channel
l Diversion 2
Triangular Vegetated Channel Inputs:
Material: Grass mixture
Left Right Freeboard Freeboard Freeboard i Limiting
Sideslope Sideslope Slope (°k) R ClassesCe I ° Mult. x ~ Velocity
Ratio Ratio Depth (ft) h of Depth (VxD) j (fps)
3.0:1 3.0:1 7.2 D, B . 1.00 ~ 4.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard StabilityI
Class D w/ ~
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 1.59 ds ~ 1.59 ds
Depth: 0.50 ft 1.50 ft i' 0.84 ft 1.84 ft
Top Width: 3.00 ft 9.00 ft I 5.02 ft 11.02 ft
Velocity: 2.13 fps ~ 0.76 fps
X-Section Area: 0.75 sq k j 2.10 sq ft
Hydraulic Radius: 0.237 I 0.397
Froude Number: 0.76 0.21
Roughness Coefficient: 0.0719 ~ 0.2843
Structure #1 jt/egetated Chann%~
Diversion 1
Triangular Vegetated Channel Inputs:
Material: Grass mixture
Left Right i Freeboard Freeboard Freeboard ~ Limiting
Sideslope Sideslope Slope (%) Retardance Mult. x ' Velocity
Ratio Ratio Classes Depth (ft) % of Depth (VxD) (fps)
3.0:1 3.0:1 7.5 D, B - 1.00 ' 4.0
Vegetated Channel Results:
to _l
Filename: 100yr-24hr.sc4 Printed 08-08-2006