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Acrow Restores Traffic Flow After Bridge Collapse

Temporary Multi-Span Panel Bridge

Accelerated construction aids in restoration after over-height truck strikes bridge

An over-height tractor-trailer combination hit the I-5 bridge over the Skagit River in Burlington, Washington on May 23, 2013. The impact caused an entire 160-footlong (48.77m) segment to plunge into the water, along with the truck and two cars. Fortunately there was no loss of life.

The financial impact caused by the loss of a vital crossing illustrated the need for a swift solution. The Washington State Department of Transportation (WSDOT) awarded Atkinson Construction the emergency contract, and Acrow became part of the team to engineer a rapid solution for the bridge section.

Two 160-foot-long (48.77m) by 24-foot-wide (7.35m) Acrow bridges were designed to be installed using a full cantilever launch, as a crane-assisted launch would have created an obstruction during the placement of the bridge. The Acrow bridges were formally opened just 24 days after the collapse. They remained in place for four months, restoring traffic flow, while a permanent bridge was constructed.

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