Dale Ogden told CNN affiliate KING that he was driving near the tractor-trailer's pilot car when he saw a device on that car designed to indicate whether a truck can clear an obstacle hit the top of the bridge.

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The source of its excitement was not a cool car but a Web trailer for an upcoming movie called Transformers.

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He said his lorry had been pushed off the tarmac and the blue car was embedded in the trailer.

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That description, along with a civilian report of a speeding car, led responding officers to a nearby trailer park, he said.

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The bus was in collision with a sedan car and a pick-up truck pulling a trailer, Mr Lopez said.

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To get there, you have to drive over Pulaski County's winding roads, pass some sagging trailer homes with rusted cars out front, then get out of the car and cut across Bradley's cornfield.

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