Bridge Collapse Caused By Oversized Truck Hitting Span

Source: William M. Welch and Doug Stanglin / USA Today

The collapse of the Interstate-5 bridge over the Skagit River in Washington State was triggered by a truck with a excessively tall load hitting a steel girder, sending two vehicles into the icy water 50-feet below, Washington State Patrol Chief John Batiste said Friday.

Three people were hospitalized with non-life threatening injuries Thursday evening, but there were no fatalities.

Batiste said the truck, which was carrying drilling rig equipment, struck a bridge support girder, setting off a chain reaction. The vertical clearance from the roadway to the beam is 14.6 feet.

“For reasons unknown at this point in time, the semi struck the overhead of the bridge causing the collapse,” Batiste said.

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