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HYDRO20421
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HYDRO20421
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Entry Properties
Last modified
8/24/2016 8:41:45 PM
Creation date
11/20/2007 1:33:18 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Hydrology
Doc Date
4/7/2005
Doc Name
1st Quarter 2005 Rill & Gully Inspection Report
From
J.E. Stover & Associates
To
DMG
Permit Index Doc Type
Rill and Gully Report
Media Type
D
Archive
No
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Coal Canyon Scour Protection and Transition Zone <br />Engineer's Certification <br />The hydrologic balance of the segment of Coal Canyon, below the two 81" by 59" <br />culverts was affected after the dip section located about 800-feet downstream of the <br />two culverts was removed. Erosion of the channel started to progress upstream from <br />where the dip section was removed. Additionally, erosion of the channel was noted at <br />the outlet ends of the two culverts. <br />To remedy this problem scour protection was placed at the outlet of the culverts. <br />Approximately 700-feet downstream of the double culverts, a transition zone was <br />installed to control the channel erosion noted above. This work was performed during <br />August 2003. See Exhibit 8B and Appendix 13-2, pages Misc-20 through Misc-22 for <br />details of the scour protection and transition zone. <br />I, James E. Stover, inspected the scour protection and transition zone on August 18, <br />2003. To the best of my knowledge and belief, the scour protection and transition zone <br />meets all applic mance standards and design criteria presented in Snowcap <br />Coal Compa •~,~clamation Permit, C-81-041. <br />~~,~~,~ _" F, ~ ms's <br />E. Stov~~t Date <br />io Prpfiibnal Engineer <br />a~°orF.v~s° 19230 <br />
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