PERMFILE51266

• Permit No: C1982057
• IBM Index Class Name: Permit File
• Doc Date: 5/5/2005
• Doc Name: Ditch Calculations
• Section_Exhibit Name: Tab 13 Attachment 13-6
• Media Type: D
• Archive: No

•
TRAPEZOIDAL CHANNEL ANALYSIS
RATING CURVE COMPUTATION
November 4, 1990
TABLE 13-6-2
+ SECTION "B"
PROGRAM INPUT DATA: i
DESCRIPTION VALUi
Channel Bottom Slope (feet per foot) .................... 0.025.
Manning` s Roughness Coefficient (n-value) ............... 0.0351
Channel Side Slope - Left Side (horizontal/vertical).... 3:00
Channel Side Slope - Right Side (horizontal/vertical)... 2.00
Channel Bottom Width (feet) .... ......................... 0.0
PROGRAM RESULTS:
Depth Flow Rate Velocity Froude Velocity Energy Flow Area Top Widt;
O
(ft)
- (cfs)
-
-- (fps)
--
--
-- Number
------ Head(ft)
----
--- Head(ft) (sq
-------------- ft)__--
--- --(ft
-----
0.2 ---
--
--
0.1 -
--
1.38 -
0.766 -
0.029 0.229 0.1 1.~
0.4 0.9 2.18 0.860 0.074 0.474 0.4 2.~
0.6 2.6 2.86 0.920 0.127 0.727 0.9 3.~
0.8 5.5 3.46 0.965 0.186 0.986 1.6 4.~
1.0 10.1 4.02 1.001 0.251 1.251 2.5 5.
1.2 16.3 4.54 1.032 0.320 1.520 3.6 6.~
1.4 24.7 5.03 1.059 0.393 1.793 4.9 7.~
1.6 35.2 5.50 1.083 0.469 2.069 6.4 8.'.
1.8 48.2 5.95 1.105 0.549 2.349 8.1 9.~
2.0 63.8 6.38 1.124 0.632 2.632 10.0 10.E
--------------------------------------------------------------------
TRAPEZOIDAL CHANNEL ANALYSIS COMPUTER PROGRAM, Version 1.3 (c) 198
Dodson 8 Associates, Inc., 7015 W. Tidwell, tF107, Houston, TX 7709:
[phone]. A manual with equations 8 flow chart is available.

13-6-3