20001432 Ver 1_Meeting Minutes_20050615

Subject:
Team Members:
Minutes from Interagency 4B Hydraulic Design Review Meeting
on June 15, 2005 for R- 2417AA in Lee County
Richard Spencer -USACE
Brian Wrenn -NCDWQ
Polly Lespinasse -NCDWQ
Travis Wilson -NCWRC
Gary Jordan -USFWS
Chris Militscher -EPA
Felix Davila -FHWA
Elizabeth Lusk -ONE
Bill Barrett -ONE
(present)
(present)
(present)
(present)
(absent)
(present)
(present)
(present)
(present)
Participants:
Marshall Clawson, NCDOT Hydraulics
Galen Cail, NCDOT Hydraulics
Herb Turner, Ko & Associates
David Fuh, Ko & Associates
Trent Cormier, Ko & Associates
"Prairie Dog" Stroup, NCDOT Roadway
Clayton Walston, NCDOT Roadway
Betsy Cox, NCDOT Structures
Theo Beach, NCDOT Structure Design
A general comment was made to eliminate any rip rap in stream beds.
There were a number of stream sites where classifications were questioned. The June 11,
2001 letter detailing jurisdictional classifications will be provided to the hydraulic
consultants for review.
Sheet 6:
It was recommended to improve the outlet transition/angle from the detention pond to the
channel. Richard stated he would review the site for acceptability of ditching through
wetland. Otherwise, may have to be piped.
It was stated a pipe system will outlet at Big Buffalo Creek versus a ditch due to the steep
terrain. It was recommended to pipe to a drainage structure (JB) prior to the creek banks,
then pipe "flat" to the creek. Provide velocities at outlet.
Sheet 8:
It was discussed that the wetland below the pond dam may be impacted in order to breach
the dam. There was discussion on whether to show as "total take ".
Sheet 8:
The stream classification at crossing Sta 69 +00 —L- was questioned. It was stated this site
was listed as "Intermittent -No Mitigation Req'd".

Sheet 9:
It was stated a box culvert is proposed for the jurisdictional stream crossing.
It was observed that the topo indicated a potential spring. This will need to be located
and addressed.
Sheet 12:
It was stated a box culvert is proposed for the jurisdictional stream crossing. It was
recommended to use an overflow pipe in swale.
Sheet 14:
It was recommended to use embankment rip rap at the ditch tie -in at the proposed box
culvert inlet.
Sheet 15:
It was recommended to relocate the pipe outlet out of the wetland, if possible.
Sheet 16:
It was stated a box culvert is proposed for the jurisdictional stream crossing.
Sheet 18:
The stream classification downstream of the pond was questioned. It was stated this site
was listed as "Intermittent -No Mitigation Req'd ".
The meeting was adjourned