My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2015-04-02_PERMIT FILE - C1996083
DRMS
>
Day Forward
>
Permit File
>
Coal
>
C1996083
>
2015-04-02_PERMIT FILE - C1996083
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 5:58:58 PM
Creation date
4/7/2015 8:14:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
4/2/2015
Doc Name
Appendix B - Protection of Hydrologic Balance
Section_Exhibit Name
Volume XI Coal Mine Waste Disposal Area No. 3
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.
/
94
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
Half Culvert J15 <br />Manning's Equation <br />Flow In a 30" Half Culvert <br />Flow Depth D 0.50 <br />Slope S 0.25 <br />Mannings "N" N 0.03 <br />AREA = Number Derived in AutoCad <br />WETTED PERIMETER= (2 *Pi *r) /2 <br />Number derived in AutoCad <br />R= AREAM/ETTED PERIMETER <br />V= (1.49/N) *(R 11.667) *(S ^.5) = <br />Q =AXV= <br />Q REQUIRED - Peak Discharge <br />Feet <br />Express as Decimal <br />Express as Decimal <br />0.70 FEET ^2 <br />2.31 FEET <br />0.30 <br />11.20 FT /SEC <br />7.84 CFS <br />1.42 CFS <br />Culvert J16 <br />Manning's Equation <br />Flow In a Trapezoidal "Smart Ditch" Channel <br />Depth D 0.2 <br />Feet <br />Width W 1.12 <br />Feet <br />Slope S 0.25 <br />Express as Decimal <br />Mannings "N" N 0.022 <br />Express as Decimal <br />Side Slope X 1.3 <br />Slope = X:1 <br />AREA= (W*D) +(X *D "2)= <br />0.20 <br />FEET ^2 <br />WETTED PERIMETER= (W) +2 *[((X *D) ^2 +D "2) "0.5] <br />1.61 <br />FEET <br />R= AREA/WETTED PERIMETER <br />0.12 <br />V= (1.49/N) *(R ".667) *(S ".5) = <br />8.35 <br />FT /SEC <br />Q =AXV= <br />1.65 <br />CFS <br />Q REQUIRED - Peak Discharge <br />1.42 <br />CFS <br />* Please see Smart Ditch product specifications in Volume lll, <br />Exhibit 8, pages 8 -29ii & 29iii <br />MR -180 Volume XI, App. B -38 03/15 <br />
The URL can be used to link to this page
Your browser does not support the video tag.