Engineers hope that this composite tub girder will be a game change for bridge construction here in Maine. "We call it the 72-hour bridge,” explained Dr. Habib Dagher of the University of Maine.

Courtesy / AIT Bridges AIT Bridges has launched a composite “tub girder,” a U-shaped beam the company says is lighter, lower-cost and longer-lasting than typical concrete and steel girders.

The first steel girders, which are beams that support the deck for the new Grand Avenue traffic bridge, are scheduled to arrive in February and will span from the abutment in the Hot Springs Pool ...

The Fourteen Mile Bridge along Lincoln County Road 37 near Ranger is a press-brake-formed steel tub girder bridge. Designers from West Virginia University and Marshall University have been ...

About AIT Bridges AIT Bridges, a division of Advanced Infrastructure Technologies, is the leading producer of innovative composite bridge solutions, providing a unique tailored customer experience.

Submitted Photo Dr. Greg Michaelson, left, and Dr. Karl Barth pose for a photo on he side of a new press-brake-steel-tub-girder bridge in Lincoln County near East Lynn.

We explored a variety of concepts, from twin-tub girder types to orthotropic deck systems,” he notes. SSSBA organized a modular steel-bridge task group to explore the possibilities.

Submitted Photo Dr. Greg Michaelson, left, and Dr. Karl Barth pose for a photo on he side of a new press-brake-steel-tub-girder bridge in Lincoln County near East Lynn.

According to the Maine Department of Transportation, workers will use a composite tub girder system in a “double t” configuration to replace it.