HomeMy WebLinkAbout20110136 Ver 1_Meeting Minutes_20090225Subject: Minutes from the Interagency 4C Hydraulic Design/Permit Drawings
Review Meeting on February 25, 2009 for R-2812 in Moore County
Team Members:
Richard Spencer-USACE
Gary Jordan-USFWS
Travis Wilson-NCWRC
Polly Lespinasse-NCDWQ
Kathy Matthews-EPA
Felix Davila-FHWA
David Harris-REU
Jimmy Goodnight-Roadway
John Frye- Structures
Elmo Vance-PDEA
Rachelle Beauregard- NEU
John Olinger-Division 8
(absent)
(absent)
(absent)
(absent)
(present)
(present)
(absent)
(absent)
(present)
(absent)
(present)
(present)
Participants:
Marshall Clawson, NCDOT Hydraulics
Bill Zerman, NCDOT Hydraulics
Mark Staley, NCDOT REU
Erin McLamb, NCDOT NEU
Marissa Rodman, NCDOT NEU
Brian Wrenn-NCDWQ
Jonathan Henderson, HDR
James Rice, HDR
Wyatt Yelverton, HDR
Vickie Miller, HDR
General Introduction was iniatated by Marshall Clawson. Introductions were made by all
in attendance. Jonathan Henderson started the review by leading into each permit impact
site (4 total). Only plan sheets with permit impact sites were reviewed.
Site 1 (Sheet 21):
Culvert extension and roadway widening to the north and south sides. The pond will be
temporarily drained for construction and TDE provided. The TS will be removed from
the drawings. Flow of the stream will be maintained during construction.
Riprap at the culvert outlet is not needed due to the 0.5% slope and water will be backed
up in the culvert.
NEU clarified that there is no stream on the inlet side; this is a wetland per NEU
conversations with Richard Spencer,
Concerns about the extra costs of larger pipe, pipe length, more excavation, soil material,
etc. were discussed due to burying the pipe 2 feet on the outlet side of this site especially
if the pipe is actually going to be backed up from the pond. This depth of pipe was to tie
the new pipe to the existing pond bottom elevation.
Site 2 (Sheet 23):
The pond will be breached and drained for construction. Wetlands are adjacent to the
pond.
NEU will have Richard Spencer review the additional wetlands at this site for additional
impacts. As a follow up to the meeting, the additional mapped wetlands are below the
embankment and are not impacted by the project. No additional impact is calculated at
this site.
NEU stated that they are looking into the potential for mitigation at this site.
Site 3 (Sheets 23124):
Proposed culvert extension to the north side and there will be no impacts on south side.
There are a number of utilities at this location and reason for roadway widening and
culvert extension to one side.
Due to a hatching angle issue, it appears that the channel impacts may not have been
calculated. This will be verified.
If there is rip rap on the channel banks for stabilization, this should be noted at the bottom
of the Impact Summary Sheets.
Site 4 (Sheet 28):
The existing 48" CSP will be replaced with a new 60" pipe that will be bored and jacked
under the existing roadway. A junction box was added to assist in decreasing the velocity
of flow. The drainage at this site will be maintained through the existing pipe during the
bore and jack.
Flip the bore and jack detail and label bore and jack on the plan sheets.
If there is rip rap on the channel banks for stabilization, this should be noted at the bottom
of the Impact Summary Sheets.
General comments ended.
Meeting Adjourned