New Method Speeds Up Bridge Construction Projects in Vermont

'Bridge in a backpack," is an example of the innovative ideas that are part of Vermont's accelerated bridge program that uses quick-building designs and other innovations

Burlington Free Press

The Vermont Transportation Agency is using new technology to cut construction time, reduce the backlog of bridges that need replacement and save monty. The program involves using a series of hollow tubes made of materila that is impervious to the elements.The composite material provides a protective barrier against road salt, chemicals and moisture which degrades conventional bridges.

The tubes are then filled with concrete and a deck is laid across the top. The bridge is expected to be ready for traffic in a fraction of the time it would take to build a traditional bridge.

(more on Vermont's accelerated bridge program and the 'bridge in a backpack'...)