Route 125 #23 Bridge

Hancock, VT

Precast Concrete Speeds Construction After Hurricane Wreaked Havoc
Hurricane Irene wreaked considerable havoc on the East Coast in August 2011, and among its victims were a number of short-span bridges in Vermont. Because several were in isolated areas without viable detours or bypasses, officials chose precast concrete Northeast Extreme Tee (NEXT) girders to speed construction.

“The hurricane caused the bridge to fail, so it was a top priority to be returned to service,” says Kristin Higgins, project manager for the Accelerated Bridge Programs at the Vermont Agency of Transportation. “We wanted to create a prefab bridge that could be lifted into place quickly to ensure we minimized disruptions to traffic.”

The NEXT Beam is similar to a standard double-tee beam except the stems are wider to accommodate bridge design loads. It was developed by the PCINE as an alternative to adjacent box beams in the 45-ft- to 90-ft-span range to accommodate accelerated construction of bridges. For this project, four 71-foot-long NEXT beams, 28 inches deep, were used for the one-span bridge.

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Projects details

  • PrecasterJ.P. Carrara & Sons, Inc., Middlebury, VT

  • Owner/DesignerVermont Agency of Transportation (VTrans), Montpelier, VT

  • ContractorParent Construction, Hinesburg, VT

Key Project Attributes

  • Four 8-foot-wide precast concrete NEXT beams

  • Two-piece abutments and wing walls

  • Bridge Resources