@foxnews: 'BACK UP!': Authorities desperately shout at a truck driver who ignores a roadblock and heads straight toward a washed-out bridge in Colorado. Footage shows a worker in a neon vest frantically waving at the approaching truck as several voices scream for the driver to stop. Just ahead, the bridge over the Piedra River is completely gone after heavy rainfall triggered flooding across the region. Colorado Parks and Wildlife says patrols were already blocking the road when the frightening near-miss unfolded.