20091070_R2612B_Final_4C_Minutes_20121119

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
BEVERLY EAVES PERDUE
GOVERNOR
November 19, 2012
To: Felix Davila Andrew Williams
Gary Jordan Chris Militscher
Travis Wilson Amy Euliss
Brenda Moore Patty Eason
Rachelle Beauregard Mack Bailey
Ted Walls David Harris
From: Paul Atkinson, PE
Project Manager — TIP East
EUGENE A. CONTI, JR.
SECRETARY
Subject: Minutes of the Permit Drawing Review "4C" Meeting for R- 2612B: US 421 at SR 3418
(Neelley Rd.) South of Greensboro.
The "4C" Meeting for R -2612B was held on October 18, 2012 from 12:30 PM to 130 PM in the NCDOT
Hyrdaulics Unit Conference Room at the Century Center Complex in Raleigh, NC. The following were in
attendance:
Participants: Team Members
Paul Atkinson, NCDOT Hydraulics (Present)
Felix Davila, FHWA (Present)
Andrew Williams, USACE (Present)
Gary Jordan, USFWS (Absent)
Chris Militscher, EPA (Present- Phone)
Travis Wilson, NCWRC (Absent)
Amy Euliss, DWQ (Present)
Other Attendees
Karen Reynolds, PDEA (Present)
Barney Blackburn, NCDOT -REU (Present)
Jennifer Parish, NCDOT -REU (Present)
Amy James, NES (Present)
Rachel Evans, NCDOT Hydraulics (Present)
Tatia White, Roadway Design (Present)
Cedrick Butler, Roadway Design (Present)
Stephanie Pratt, NCDOT Hydraulics (Present)
Support Staff
Brenda Moore, Roadway Design (Absent) Mack Bailey, Structures (Present)
Patty Eason, Division 7 (Present) Ted Walls, PDEA (Absent)
Rachelle Beauregard, NES (Present) David Harris, Roadside (Absent)
MAILING ADDRESS: TELEPHONE: [phone] LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone] CENTURY CENTER COMPLEX
HYDRAULICS UNIT BUILDING B
1590 MAIL SERVICE CENTER WEBSITE: wvvw.NCDo7.oRG1boH/ 1020 BIRCH RIDGE DRIVE
RALEIGH NC 27699 -159D RALEIGH NC

The 4C meeting began with Paul Atkinson (NCDOT) giving an overview of changes to the design since the 4B
meeting. Significant changes were as follows:
• An outfall was added inside the wetland boundary at -Y- Sta. 42 +27 that had not previously appeared in
the 4B plans.
• Culverts were originally presented as single barrel culverts, but were revised during final design to be
double barrel culverts with one low flow barrel each to meet the requirements for the FEMA Flood
Study. Low flow barrels were each buried I ft. with I ft. sills at the inlet and outlet, and overflow
barrels have 2 ft. sills at the inlet and outlet.
Site I
• All parties agreed that stream impacts needed to be broken out into sub -site impacts (i.e. IA, IB, IC, etc.)
and noted on the impact summary as such.
Site II
• Hydraulics stated that the remaining pond would be used as a dry detention basin with riser for water
treatment. There were no comments associated with these impacts.
Sites III & IV
• Hydraulics said that no determination had been made at 4B as to whether wetland remnants at these sites
were to be total takes. USACE stated that even though the remainders of the wetlands inside Loop D are
not affected by the alignment, they should be considered impacted to some degree. Wetlands that are
directly impacted should be mitigated at a 2:1 ratio, while the remainders of the wetlands inside Loop D
that are indirectly impacted will be mitigated at a ratio of 1:1.
• NES requested these indirect impacts to wetlands to be included under "Fill in Wetlands" and quantity
noted in the Summary Sheet that "X -acres of fill in wetlands will result in 1:1 mitigation ratio."
• DWQ stated that there was concern for the integrity of the stream connecting Site III to Big Alamance
Creek. Hydraulics will examine laying back the banks as was done downstream to better stabilize the
remainder of the existing stream through the wetlands. DWQ stated that impacts could be shown as
"Temporary Surface Water" impacts if the stream was not relocated.
• USACE asked that all impacts that result in 1:1 mitigation ratio be noted on the Wetland hnpact
Summary Sheet.
• DWQ requested that Hydraulics slightly realign the existing channel to smooth out the sharp bend just
upstream of the -Y- culvert channel work. Hydraulics noted that the existing channel is eroded at this
location and agreed to modify the design. Hydraulics indicated bank stabilization may be warranted and
will evaluate. NES stated bank stabilization should be broken out separately on the Summary Sheet if it
is used.
• NES and USACE stated that excavation due to temporary diversion channel should be quantified as
"Temporary Fill in Wetlands ".
• Hydraulics mentioned that impacts due to temporary diversion channels during culvert constriction had
been accounted for under "Temporary Surface Water ".

• DWQ requested that due to issues with culverts on R- 2612A, rip rap be backfilled in both culverts.
Update: Hydraulics has investigated the issue crud found that the R -2612A culvert was on a much
steeper slope. Due to the relatively flat slopes on the R -2612B culverts, and the addition of inlet outlet
sills, the low flow barrels will be allowed to silt up naturally, and rip rap hill be added to the over flow
barrels only.
Site V
• Hydraulics stated work mainly consisted of repairing undermined sections of existing pipe with rip rap
in the channel included in permanent impacts to JS. There were no comments about these impacts.
General Comments
• USACE stated that this project is old and asked that the LEDPA chart be updated as well as the EA and
FONSI since they are over 5 years old. PDEA indicated they will provide the requested information.
PA /crl