Hydro-Demolition Phase of Wendover Avenue Bridge Resurfacing Project Begins in Guilford County Friday, March 30, 2012

RALEIGH — The N.C. Department of Transportation has completed the initial bridge demolition work on two bridges included in the Wendover Avenue bridge resurfacing project and is set to begin the hydro-demolition phase of the project this weekend.  Construction began March 26 on the $2.2 million project to resurface the decks of seven bridges on Wendover Avenue in Greensboro.  

Crews will begin nighttime hydro-demolition operations on Sunday, April 1, weather permitting.  The work will occur each night from 7 p.m. until 6 a.m. Sunday through Thursday, and is scheduled to be complete no later than Nov. 15. Crews will begin hydro-demolition on the bridges over North Buffalo Creek and Elm Street and move west until all bridges are complete.

The Wendover Avenue bridge decks designated for resurfacing include:
  • The bridge over North Buffalo Creek;
  • The bridge over Elm Street;
  • The bridge over the Southern Railroad;
  • The bridge over Yanceyville Street;
  • The bridge over Friendly Avenue;
  • The bridge over West Market Street; and
  • The bridge over Holden Road.
The project will be the first in Division 7 to utilize hydro-demolition.  During this resurfacing process, the top inch or two of the existing deteriorated concrete will be removed using traditional milling machines and the remaining half-inch will be removed using jets of water with pressure exceeding 1,700 pounds per square inch.  

Hydro-demolition is more precise than traditional pavement removal with a jackhammer, and it reduces the potential for damage to the bridges.  In addition, hydro-demolition is safer and faster than traditional demolition methods and minimizes the impact to traffic.  

Approximately 45,000 vehicles per day travel on this section of Wendover Avenue, and completing the hydro-demolition at night will minimize the impact to about 80 percent of that traffic.  

NCDOT wants to alert residents that the innovative hydro-demolition technique will generate noise.  “It’s going to be loud,” says NCDOT District Engineer Chris Kirkman.  “We understand this may cause an inconvenience to nearby residents, but the benefits of the technique will allow us to complete the project as quickly and as safely as possible and with less impact to motorists.”

The contractor is required to comply with the City of Greensboro’s noise ordinance, which allows all road work except blasting and pile driving to occur during night hours on roads that are in the thoroughfare plan.

Kirkman anticipates the hydro-demolition part of the deck resurfacing operations to occur between 7 and 11 p.m. Then crews will resurface the bridge deck with a rapid strength modified concrete and reopen the bridge to traffic by 6 a.m.

“These bridges are in need of resurfacing to extend their lifespan, and we are fortunate to have the opportunity to use this cutting-edge technology to improve the travel experience for thousands of drivers in Greensboro,” says Kirkman.

NCDOT reminds motorists to watch signs for construction information, stay alert and obey the posted speed limit.

The department also urges motorists to “know before you go” about traffic conditions on Bryan Boulevard. For real-time travel information at any time, call 511, visit http://www.ncdot.gov/travel or follow NCDOT on Twitter.
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.


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