2010-08-10_REVISION - C1981008 ‎(9)‎

• Permit No: C1981008
• IBM Index Class Name: Revision
• Doc Date: 8/10/2010
• Doc Name: Response 4 Revised Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-22
• From: Western Fuels-Colorado
• To: DRMS
• Type & Sequence: PR6
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
r- -inhl IAOA -IM7 P-W. 1
Structure #1(ye_oetated Chann %�
Mined Land Disturbed (poor)
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Bottom Left
Stability
Class D w/o
Freeboard
Stability i
Gass D w/
Freeboard
Capacity
Gass B w/o
Freeboard
Capacity
Class 8 w/
Freeboard
Design Discharge:
cf-- -----------------------
E-------
31.11 cfs
Class B w/
Depth:
------------------------__._. .....__ ... _.._._...............
-31.11
0.46 ft
.._.. _.._.._......_._..._.._...-......_..._.......;.
---------------- ---
1.46 ft __......_......................
--- - - -
0.82 ft
- --------- -------
1.82 ft
-
Top Width:
29.12 ft
49.12 ft
36.34 ft
56.34 ft
Velocity:
- -�- _----------------._..._.___....__.._._.._..___.._.._.._.._.._.,..._._...._._.._.._.__..._____....
2.78 fps
1.37 ft
1.35 fps
.._...._.____.._...__..........
X- Section Area:
---- ---- ----- - ---- -- _.... -...._...._
11.20 sq ft
................._..........................
;
...... ... ....................
23,01 sq ft
. ................_......................
------------------------
Hydraulic Radius:
0.384 ft
------------------
0.632 ft
--
Froude Number:
0.79
0.30
Roughness Coefficient:
0.0572
j
................................... ...............................
0.1642
...............................
Structure #1(ye_oetated Chann %�
Mined Land Disturbed (poor)
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Bottom Left
Right
R ram
Freeboard Freeboard Freeboard
Umiting
W ) Sideslope
Sideslope Slope (%)
Ratio
Mult. x
(ft) % of Depth
Velocity
(fps)
Gass B w/o
Class B w/
(VxD)
Freeboard
20.00 10.0:1
10.0:1 4.1 D, B
1.00 10.00
5.0
Vegetated Channel Results:
Structure #S (Pond)
pond
Pond Inputs:
Initial Pool Elev:
Stability
Stability
Capacity
Capacity
0.00 ac -ft
Class D w/o
Class D w/ I
Gass B w/o
Class B w/
Freeboard
Freeboard i
Freeboard
Freeboard
Design Discharge
18.9 cis
18.99 Cis
Depth:
0.37 ft
1.37 ft
0.71 ft
1.71 ft
Top Width:
27.42 ft
47.42 ft
34.14 ft
54. 14 R
Velocity:
2.16 fps
------------------
0.99 fps
------ -- _
--
X- Section Area:
8.80 sq ft
19.14 sq ft
Hydraulic Radius:
--- --- - - - --- -
0.320 ft
...........
j
................................... ...............................
0.559 ft
-- .......................
...............................
Froude Number:
0.67
0.23
Roughness Coefficient
0.0653
0.2061
Structure #S (Pond)
pond
Pond Inputs:
Initial Pool Elev:
5,611.90 ft
Initial Pool:
4.99 ac -ft
----------------------------------------------------------------------------------------------
"Sediment Storage:
0.00 ac -ft
8
Filename: 011 POND 25YR post mine Iday pump 15sept09.sc4
Printed 09 -16 -2009
REVISED AUGUST 2009 Attachment 2.05.3(3) -22 -30