U-3330 Final 4B Meeting Minutes 6-6-2014

Subject:
Team Members:
Draft Meeting Minutes from 4B Preliminary Drainage Design
Review
May 8, 2014 for U-3330 in Nash County
Tom Steffens-USACE (present)
Gary Jordan-USFWS (present)
Travis Wilson-NCWRC (present-via phone)
Ron Lucas -FHWA (present)
Cynthia Van Der Wilde-EPA (present)
Rob Ridings -NCDWR (present)
Participants:
Bill Zerman, NCDOT Hydraulics
Vincent Rivers, NCDOT Hydraulics
Dan Duffield, Mulkey E& C
Christopher Dustin, Mulkey E& C
Tim Coggins, NCDOT Structures Design
Andy Young, NCDOT Roadway Design
Jillian Hinson, NCDOT Roadway Design
Mark Staley, NCDOT REU
Ted Devens — NCDOT PDEA
Wendi Johnson — Division 4
Emily Murray-NCDOT Structures Design
Chris Rivenbark-NES
Introductions were initiated by Bill Zerman. Introductions were made by all in
attendance. Dan Duffield proceeded with the review.
General
• The JD expired in 2011
• The division has concerns with preformed scour holes and would prefer rock splash
pads if they serve the same purpose and diffuse the flow as a preformed scour hole.
• Make sure flow is dissipated before entering the buffer zones when using rock splash
pads.
• Need to use bank stabilization where ditches are entering the streams.
• When using ditches for grass swale criteria, ditches must have 3:1 side slopes.
Plan Sheet 4
The stream located at station 27+00 —L- Rt (downstream portion) and at station 29+50 —
L- Lt (upstream portion) was not called as JD but will be reviewed for consideration
during the re-verification process.
Plan Sheet 6— The bridge crossin�
• Concerns over removing the concrete slope protection and leaving the ground bare
and unstable. The division would prefer it be covered with something like Class II
riprap because of the height of Stoney Creek.

• When impacting the JS stream in-between the road and BoJangles make sure you
account for impacts associated with construction installation.
Plan Sheet 7— 42" Pipe outfall and lar�e wetlands
Make sure that impacts are accounted for when going outside control of access with
regards to easements.
Change the PSH to rock slash pad due to the inaccessible location of outlet of pipe.
This is for shoulder berm gutter outlet, behind the guardrail.
Plan Sheet 10 — Box Culvert and cross pipe on Y line
• Make sure ditches have stream bank stabilization when entering streams.
• Change the PSH to a rock splash pad as the contours don't look flat in this area.
Check to make sure the velocities are diffused before entering the buffers.
Questions?
• Ted Devens would like preliminary impact numbers to compare with the FONSI
Some folks could not access the redline drainage; it could be that the name of the file had
a"%" in the file name. The file has been renamed so it can be accessed.
Meeting Adjourned.