 AP Photo/KMSP-TV This video frame grab taken from KMSP television shows a burning tractor trailor at the scene of a freeway bridge that collapsed over the Mississippi River in Minneapolis Wednesday. |
 AP Photo The entire span of an interstate bridge over the Mississippi River between Minneapolis and St. Paul collapsed during evening rush hour, sending vehicles, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Jim Mone A bridge carrying rush hour traffic over interstate 35W in Minneapolis is shown after it collapsed, sending numerous vehicles into the Mississippi River early Wednesday evening, Aug. 1, 2007. A busy highway bridge that spans the Mississippi River just northeast of Minneapolis collapsed during rush hour Wednesday, sending dozens of cars, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Jacob Reynolds Emergency vehicles are seen near the Interstate 35W bridge in Minneapolis after it collapsed, sending numerous vehicles into the Mississippi River, Wednesday, Aug. 1, 2007. The busy highway bridge that spans the Mississippi River just northeast of Minneapolis collapsed during rush hour Wednesday, sending dozens of cars, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Erik S. Steinmetz Wreckage lies in the water at the scene of a freeway bridge collapse over the Mississippi River in Minneapolis Wednesday, Aug. 1, 2007. The entire span of the 35W bridge collapsed about 6:05 p.m. where the freeway crosses the river near University Avenue. |
 AP Photo/Jacob Reynolds A water rescue boat is seen near the wreckage of the Interstate 35W bridge in Minneapolis, Wednesday, Aug. 1, 2007. The busy highway bridge that spans the Mississippi River just northeast of Minneapolis collapsed during rush hour Wednesday, sending dozens of cars, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Jacob Reynolds Vehicles burn in the wreckage of the I-35W bridge in Minneapolis after it collapsed, sending numerous vehicles into the Mississippi River, Wednesday, Aug. 1, 2007. The busy highway bridge that spans the Mississippi River just northeast of Minneapolis collapsed during rush hour Wednesday, sending dozens of cars, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Jacob Reynolds Emergency personnel respond at the Interstate 35W bridge in Minneapolis after it collapsed, sending numerous vehicles into the Mississippi River, Wednesday, Aug. 1, 2007. The busy highway bridge that spans the Mississippi River just northeast of Minneapolis collapsed during rush hour Wednesday, sending dozens of cars, tons of concrete and twisted metal crashing into the water. |
 AP Photo/The Minnesota Daily, Matthew Mead A man comforts an unidentified victim injured in the collapse of the Interstate I-35W bridge Wednesday night in Minneapolis. An interstate bridge that was in the midst of being repaired suddenly broke into huge sections and collapsed into the Mississippi River during rush-hour traffic, killing at least six people and sending vehicles, tons of concrete and twisted metal crashing into the water. |
 AP Photo/Adam Wolf Emergency personnel respond at the scene of a freeway bridge collapse over the Mississippi River in Minneapolis Wednesday, Aug. 1, 2007. The entire span of the 35W bridge collapsed about 6:05 p.m. where the freeway crosses the river near University Avenue. |
 AP Photo/Paul Battaglia Dr. Joseph Clinton, emergency medical chief at Hennepin County Medical Center in Minneapolis, gives an update on victims of the I-35W bridge collapse Wednesday, Aug. 1, 2007. An interstate bridge jammed with rush-hour traffic suddenly broke into huge sections and collapsed into the Mississippi River Wednesday, pitching dozens of cars 60 feet into the water and killing at least seven people. |
 AP Photo/Jim Mone A section of the I-35W bridge in Minneapolis rests on freight cars after collapsing Wednesday, Aug. 1, 2007. An interstate bridge jammed with rush-hour traffic suddenly broke into huge sections and collapsed into the Mississippi River Wednesday, pitching dozens of cars 60 feet into the water and killing at least seven people. |
 AP Photo/Morry Gash This is an aerial view of the Interstate 35W bridge over the Mississippi River seen Thursday, Aug. 2, 2007, in Minneapolis, after it collapsed during the evening rush hour Wednesday. |