My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE114540
DRMS
>
Back File Migration
>
Permit File
>
200000
>
PERMFILE114540
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:10:38 PM
Creation date
11/24/2007 11:45:56 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
3/20/2007
Doc Name
Appendix A to Appendix C Report, 11/10/03
Section_Exhibit Name
Coal Mine Waste Disposal Area No. 2
Media Type
D
Archive
Yes
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
30
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
Spillway Pond F <br />Determine flow characteristics down 10.3% Grade <br />Pond F Emergency Spillway <br />Manning's Equation <br />Flow In a Trapezoidal Channel <br />Depth D 0.89 Feet <br />Width W 5 Feet <br />Slope S 0.103 Express as Decimal <br />Mannings "N" N 0.04 Express as Decimal <br />Side Slope X 2 Slope = X:1 <br />AREA=(W*D)+(X*D^2)= <br />WETTED PERIMETER=(W)+2*[((X*D)^2+D^2)^0.5] <br />R=AREA/WETTED PERIMETER <br />V=(1.49/N)*(R^.667)*(S^.5)= <br />Q=AXV= <br />Q REQUIRED -Peak Discharge <br />Sediment Pond F <br />Riprap Sizing -Down Face of Embankment -Pond F <br />D50 =Size of Riprap <br />D50 = ((V X S^.17)/7.58))^2 <br />D50 =Diameter in feet <br />V =Velocity <br />S =Slope <br />D50 = 0.68 feet <br />6.03 FEET^2 <br />8.98 FEET <br />0.67 <br />9.17 FT/SEC <br />55.34 CFS <br />51.17 CFS <br />8 inches Use 6" to 18" Rock <br />App. B - 6 <br />TQ-4 c.) <br />A PPI'ou~l} <br />3~~~07 <br />
The URL can be used to link to this page
Your browser does not support the video tag.