Crescent Road

Wainwright, David
From:
Cox, Marissa R
Sent:
Friday, November 04, 2011 8:22 AM
To:
Steffens, Thomas A; Wainwright, David; Moore, Byron G; Ward, Garcy
Cc:
Barclay, Carl A; Mccauley, Karen M
Subject:
R-2719 Mitigation/Sewer Line
Follow Up Flag:
Follow up
Flag Status:
Flagged
Tom, David & Garcy,
We have recently received some information via NCDOT's Utilities Unit concerning the moving
of the sewer line on the subject TIP/mitigation site and I would like to get your thoughts.
From Utilities:
To relocate sewer line, we would have to abandon the manhole within the mitigation area,
construct a manhole next to the drive (outside of M/A), and connect it to the manholes on
either side of the abandoned one.
The issues with this include:
The current slope between the two manholes to remain is 0.14%. The additional length
of the relocated pipe will flatten slightly to 0.13% (DWQ minimum for a 15" pipe is 0.15%)
The relocated pipe will have to cross the existing stream (downstream of mitigation
site) to tie into the downstream manhole, most likely via an open cut. The pipe cover will be
approximately 1.3' at the stream crossing (however, that is more cover than if the pipe
remained in place)
Need for additional pipe (700' total) as well as new manhole and abandoning existing
facilities will cost City of Kinston approximately 85k
Considering these issues, we have been asked to review/justify the otherwise unnecessary (not
needed for road project) relocation before moving forward. We are weighing these issues
against the mitigation costs/benefits and would like to know your thoughts on the situation.
The length of stream (and buffer) affected is approximately 189ft. As you have seen, the
stream looks good at the tie in and will remain within the protected R/W area. We also can
still re -plant the one -side of the stream that is within the R/W, just cannot make the
floodplain cut.
We look forward to hearing from you.
Thanks for your time,
Marissa
Marissa Rodman Cox
PDEA - Natural Environment Unit
Phone: [phone]
Fax: [phone]
Delivery:
Century Center B
1020 Birch Ridge Drive
Raleigh, NC 27610
Mail:
1598 MSC
1

Raleigh, NC 27699-1598
Please note that my email address has changed from mrodmanOncdot.¢ov to mrcoxOncdot.¢ov
Marissa Rodman Cox
PDEA - Natural Environment Unit
Phone: [phone]
Fax: [phone]
Delivery:
Century Center B
1020 Birch Ridge Drive
Raleigh, NC 27610
Mail:
1598 MSC
Raleigh, NC 27699-1598
Please note that my email address has changed from mrodmanOncdot.eov to mrcoxoncdot.zov
Email correspondence to and from this sender is subject to the N.C. Public Records Law and
may be disclosed to third parties.
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