Washington state bridge collapses

AP Photo/Skagit Valley Herald, Frank Varga

A portion of the Interstate 5 bridge is submerged after it collapsed into the Skagit River, dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013.

Crews survey the scene of a bridge collapse on Interstate 5 near near Mt. Vernon, Wash., May 23, 2013.

An aerial shot overhead by Chopper 7 of the I-5 bridge collapse.

Washington State Governor Jay Inslee addresses the media at the scene of a bridge collapse into the Skagit River on Interstate 5 near Mt. Vernon, Wash., May 23, 2013. People and cars were thrown into the river when the four-lane bridge collapsed. At least three people were rescued from the water but there have been no reported deaths.

AP Photo/Everett Daily Herald, Jennifer Buchanan

An upside-down vehicle rests in the water after a portion of the Interstate 5 bridge collapsed into the Skagit River in Mount Vernon, Wash., May 23, 2013.

A man is seen sitting atop a car that fell into the Skagit River after the collapse of the Interstate 5 bridge there minutes earlier Thursday, May 23, 2013, in Mount Vernon, Wash.

A scene of the I-5 bridge collapses in northwest Wash., May 23, 2013

A damaged truck sits submerged in the water on a portion of the Interstate-5 bridge that collapsed into the Skagit River, in Mount Vernon, Wash., May 23, 2013.

Shot taken by Chopper 7 of the I-5 bride collapse over the Skagit River north of Seattle.

A portion of the Interstate 5 bridge is submerged after it collapsed into the Skagit River, dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013.

Scene from the I-5 bridge collapse over the Skagit River north of Seattle on May 23, 2013.

A portion of the Interstate-5 bridge is submerged after it collapsed into the Skagit river dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013 according to the Washington State Patrol.

A portion of the Interstate 5 bridge is submerged after it collapsed into the Skagit river dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013.

A rescue boat and divers search near a portion of the Interstate 5 bridge that is submerged after it collapsed into the Skagit River, dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013.

AP Photo/Everett Daily Herald, Jon Bauer

Rescue workers look for victims after a portion of the Interstate 5 bridge collapsed into the Skagit River in Mount Vernon, Wash., May 23, 2013.

Rescue workers form a human chain as they begin to remove a woman from a smashed pickup truck that fell into the Skagit River after the collapse of the Interstate 5 bridge in Mount Vernon, Wash., May 23, 2013.

People look on after the Interstate 5 bridge collapsed over the Skagit River in Skagit County, Wash., May 23, 2013. The four-lane bridge collapsed about 7 p.m., Trooper Mark Francis said.

A portion of the Interstate 5 bridge is submerged after it collapsed into the Skagit River dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013.

View looking west at a portion of the Interstate-5 bridge submerged after collapsing into the Skagit river dumping vehicles and people into the water in Mount Vernon, Wash., May 23, 2013 according to the Washington State Patrol.

Crews survey the scene of a bridge collapse on Interstate 5 near near Mt. Vernon, Wash., May 23, 2013.