Shocking video shows big rig knocking over sign in Texas

HOUSTON, Tex. - Frightening video shows the moment a big rig with its bucket raised struck a trestle over the East Loop, sending it crashing to the ground and crushing the truck.

The northbound lanes of the East Loop were shut down at Market Street as authorities worked to clean up the aftermath of the crash.

Video obtained by ABC13 shows another motorist attempting to warn the truck driver as the big rig approaches the trestle.

The condition of the driver is unknown at this time.