Walden Bridge (VT 15-83)

Walden, VT

When challenges precluded maintaining traffic on the Walden Bridge over Joe’s Brook in Walden, Vermont, due to its narrow width, designers vowed to local citizens the closure would be minimized. To meet the 28-day schedule, they designed a precast, prestressed structure featuring NEXT D beams and beat the deadline by one day.

The bridge replaced a deteriorated single-span, two-lane structure built in 1933, explains Carolyn Carlson, senior structures project manager at the Vermont Agency of Transportation. “We considered a number of alternatives before concluding that the NEXT D beams offered the best option to meet all of the goals for us and the town.”

Read More

Projects details

  • Precaster(NEXT D beams) J.P. Carrara and Sons Inc., Middlebury, VT (Abutments, wing walls and footings) S.D. Ireland Companies, Williston, VT

  • OwnerVermont Agency of Transportation, Montpelier, VT

  • ContractorJ.A. McDonald Inc., Lyndon Center, VT


  • Four modified NEXT 28D beams (55.76 feet long and 8 feet wide with an 8½-inch flange thickness)

  • Total beam weight: 100,000 lbs

  • Level 2 dual-coated Z-Bar reinforcement

  • Precast concrete abutments, wing walls, and footings