Grist Mill Bridge Opens to Traffic with AIT Bridges Composite Beams

January 11 (2021

AIT Bridges, a division of Advanced Infrastructure Technologies (AIT), a designer and supplier of composite bridge systems and structural components, informed that, in conjunction with The Maine Department of Transportation, after the December 31st load testing, the replacement of the Grist Mill Bridge has opened to traffic, located on Route 1A , in Hampden Maine.

The former span was constructed in 1950 and was comprised of three bridges built one on top of the another. It has been replaced with a new span consisting of five composite beams manufactured at AIT Bridge’s Brewer, Maine facility. The technology was developed in cooperation with The University of Maine’s Advanced Structures and Composites Center.

The Grist Mill Bridge spans over the Souadabscook Stream which is an environmentally sensitive tributary of the Penobscot River. The total cost for the project is approximately $8.9 million.

Today, AIT Bridges offers the composite arch bridge system and composite beams; two building blocks capable of replacing most bridges across the country.

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