September 21, 2012
Repairs to start Tuesday on Bonner Bridge in Dare County
will begin repairing the Bonner Bridge, which carries Highway 12 over
Oregon Inlet and connects Hatteras Island to the mainland, on Tuesday,
Sept. 25. The work will help fortify the bridge against the sand
erosion that commonly occurs in the inlet just south of the navigation
As part of the project, certified divers will place sand bags and wire
baskets filled with rocks on the inlet floor. They will span the width
of the bridge beneath its support system. The baskets and sand bags
will help prevent the current from washing away the sand around the
base of the bridge.
The project also includes installing a supplemental concrete support
structure just above the water line on one section of the bridge where
scour regularly occurs. This addition will help strengthen and protect
the bridge from the eroding sand.
Crews will do this work from several large barges. The barges will not
block the navigational channel. However, their anchors will be deployed
in the water. The North Carolina Department of Transportation advises
mariners to be aware of the anchor lines, which will be marked in
accordance with U.S. Coast Guard guidelines, and avoid the areas where
the barges are stationed to ensure safety.
Temporary periodic lane closures on the bridge will be required to
allow crews to deliver their materials to the barges. When the closures
are in place, signs, flaggers and/or portable traffic signals will
guide motorists through the area.
NCDOT awarded the contract for the $1.8 million project to American
Bridge Company Inc. of Coraopolis, Pa. Final completion is scheduled
for no later than Dec. 1.
For real-time travel information on Highway 12 at any time, call 511, visit www.ncdot.gov/travel or follow NCDOT on Twitter at https://twitter.com/ncdot_nc12.
Another option is NCDOT Mobile, a phone-friendly version of the NCDOT
website. To access it, type “m.ncdot.gov” into the browser of your
smartphone and bookmark it for future reference. NCDOT Mobile is
compatible with the iPhone, Android, and some newer Blackberry phones.