20130223 Ver 1_U-2524C Outlet Ditch from Hazardous Spill Basin (Site 10)_20180108

Carpenter,Kristi
From: Parker, Jerry A
Sent: Monday, January 08, 2018 9:32 AM
To: Norton, Apri) R
Cr. Snell, William H
Subject: U-2524C Outlet Ditch from Hazardous Spil) Basin
(Site 10)
Attachments: U-2524C Hazardous Spil) Basin Ditch (Site 10).pdf;
U-2524C Hazardous Spil) Basin Proposed Ditch (Site
10).pdf
April,
Per our discussion, I have attached two drawings. One is showing the original permit
plans for the 2' base ditch at Site 10 and the other is describing how NCDOT is
proposing to construct the ditch with Class B riprap in the base of the ditch with
Geotextile along the banks and tied into the stream with coir fiber matting and riprap
(See Detail U). NCDOT feels that this is necessary because of the anticipated high
volume of water that will outlet out of the Hazardous Spill Basin. It is feared that
without the riprap in the base of the ditch, NCDOT will face recurring maintenance
problems due to bank destabilization and sediment loss combined with the difficulty
and damage associated with accessing the site. No additional impacts are proposed
within the jurisdictional stream. Since only buffer impacts are anticipated within an
already permitted 2' base ditch, we are requesting that this work be performed under
an infield modification from DWR. Please let me know if you have any questions and if
you concur with our proposed plans.
Jerry Parker
Environmental Supervisor
Division 7
North Carolina Department of Transportation
336 256 2063 office
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1584 Yanceyville St.
P.O. Box 14996
Greensboro, NC. 27415-4996
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