Minnesota bridge collapse and aftermath

Search-and-recovery teams working with dogs try to locate missing people in the area of the collapsed I-35W bridge on Aug. 2, 2007.  (Spencer Weiner / Los Angeles Times)

Officials ordered the immediate inspection of similar bridges in the state that have been rated “structurally deficient” by federal inspectors.  (Spencer Weiner / Los Angeles Times)

At least 20 vehicles remained submerged in the Mississippi River under the rubble of a collapsed highway bridge as divers try to locate missing people.  (Spencer Weiner / Los Angeles Times)

City officials in the lower left-hand portion of the photograph are dwarfed by the wreckage as they survey the collapsed I-35W bridge.  (Spencer Weiner / Los Angeles Times)

Emergency-response personnel view the scene on Aug. 2, 2007.  (Spencer Weiner / Los Angeles Times)

Cathy Quinn, left, comforts her daughter Kelsey after visiting with friends whose mother was missing. “This is just surreal,” Quinn said. “They only know that she drove to work, and she didn’t come home. I’ve gone over that bridge thousands of times.”  (Spencer Weiner / Los Angeles Times)

Cars and trucks sit stranded on a portion of the I-35W bridge that collapsed during rush hour, dumping dozens of cars into the Mississippi River near downtown Minneapolis.  (Spencer Weiner / Los Angeles Times)

All eight lanes of the span fell into the river.  (Scott Olson / Getty Images)

Railroad hopper cars were crushed beneath a collapsed portion of the I-35W bridge. Police said some of the cargo of polystyrene pellets spilled next to the freight cars.  (Don Bartletti / Los Angeles Times)

Officials said there was no indication that terrorism brought the bridge down.  (Scott Olson / Getty Images)

The 10th Avenue bridge frames a portion of the collapsed structure.  (Spencer Weiner / Los Angeles Times)

Four men kneel in prayer beside the coffin of Artemio Trinidad on Aug. 4, 2007. He was killed when the I-35W bridge collapsed.  (Spencer Weiner / Los Angeles Times)

Abundia Martinez with her daughter, Lorena, sits at the memorial for her husband Artemio Trinidad on Aug. 4, 2007. After the mass, Lorena was baptized.  (Spencer Weiner / Los Angeles Times)