20141133 Ver 1_Email_20141029

Ridings, Rob
From:Ridings, Rob
Sent:Wednesday, October 29, 2014 9:19 AM
To:Montague, Heather W; Alsmeyer, Eric C SAW
Cc:Murray, Christopher A; Phipps, Dawn; Pearson, Donald R
Subject:RE: Non-reporting NWP 3 and NWP 13 with corresponding WQC No. 3883 and WQC No.
3885 on SR 1722 (King Lawrence Road) in Wake County
Heather,
Thank you for the notification. I agree the work is covered under the GC ‘s for NW 3 and 13 and is Buffer Exempt.

Rob Ridings
Transportation Permiting Unit,
Division of Water Resources, Wetlands Branch
[e-mail]
Phone: [phone]

From: Montague, Heather W
Sent: Wednesday, October 29, 2014 9:05 AM
To: Alsmeyer, Eric C SAW; Ridings, Rob
Cc: Murray, Christopher A; Phipps, Dawn; Pearson, Donald R
Subject: Non-reporting NWP 3 and NWP 13 with corresponding WQC No. 3883 and WQC No. 3885 on SR 1722 (King
Lawrence Road) in Wake County

Rob and Eric-

Wake County Bridge Maintenance has a cross line in need of repair on SR 1722 (King Lawrence Road), northeast of Cary
oo
35.80272N, -78.75656W. Proposal: Repair crossline by filling voids surrounding outlet of structure. Headwall will be
improved using sheeting and restore stream channel by filling blowhole with rip rap and also armoring adjacent
streambanks. Sequence: Dewater area and seal off eroded area under pipe at outlet end, Remove debris from around
the gully, Drive sheet pile behind the headwall and connect sheet pile to concrete headwall; also extend the headwall
with sheet piles to hold back fill approximately 5 -10 feet on each side, Gravity feed flowable fill into void between two
barrels and into void underneath pipe, Backfill and tamp behind and around headwall and shoulder, Restore less than or
equal to 30ft of stream channel by armoring blowhole and stream banks on outlet end with rip-rap, and Stabilize
repaired roadway shoulder.

Note that 40ft of the stream will be temporarily dewatered (10ft upstream and 30ft downstream) of existing pipes to maintain dry
This cross line is within the Neuse River Basin, but the minimal
work area, while stream flow will be pumped around the site.
activity here is EXEMPT from buffer rules. Work will be done from the roadway with new disturbance in buffers limited
to rip rap armoring on the stream banks for long term stabilization. Although this crossing is mapped as having hydric
soils (Wy), no wetlands exists within the construction footprint. Neil Medlin with PDEA’s NEU group provided a biological
of “No Effect” for the Dwarf wedgemussel. The only other protected species in Wake County is red-cockaded
woodpecker and Michaux’s sumac. The biological conclusion for those two species would also be “No Effect” based on
lack of habitat at this site. under a non-reporting NWP 3 and NWP 13 with corresponding WQC No.
We propose to work
3883 and WQC No. 3885.

For maintenance sites such as this one, NCDOT Division 5 has a procedure in place to provide our construction crews
with print outs of the general conditions along with a letter head cover sheet explaining the intent to operate under a
non-reporting permit as long as all applicable conditions are meet. Oversight from both the Environmental Staff and REU
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Field Operations Unit will ensure compliance with the permit conditions are met and that standard BMPs are followed.
This work is scheduled to be completed this week.

Heather W. Montague
NCDOT DIV 5 Environmental Specialist
[e-mail]
[phone] office
[phone] cell

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