The plates that connected the Interstate 35W bridge’s many steel beams are becoming the focus of investigators looking for the cause of its collapse – with one source close to the investigations ...

WASHINGTON — The Interstate 35W bridge collapsed because of forces so great a massive piece of steel was stretched as if it were latex, eventually ripping apart and causing one of the biggest ...

Federal safety investigators on Thursday pinpointed steel plates in a main truss as the locationwhere the deadly collapse of a Minneapolis bridge last year began. National Transportation Safety Board ...

National Transportation Safety Board investigators said on Nov. 13 that the 2007 Minneapolis bridge collapse that killed 13 people and injured 145 others started when gusset plates on the upper side ...

Critically important load-bearing calculations were inexplicably never performed during the design of a major bridge in Minnesota, setting up the catastrophic collapse of the span last year, a federal ...

Steel plates connecting beams in the Interstate 35W bridge in Minneapolis were too thin by half and fractured, “the critical factor” in the collapse that killed 13 people and injured 145, the National ...

Undersized gusset plates in the Interstate 35-W bridge in Minneapolis were "the critical factor" in the bridge collapse last year that killed 13 people and injured 100, the National Transportation ...

Old photos of the Interstate 35W bridge show two steel connecting plates were visibly bent as early as 2003 — four years before the span collapsed into the Mississippi River, killing 13 people.

WASHINGTONWASHINGTON — The deadly collapse of a Minneapolis bridge last year began at steel plates in a main truss, attributable to a design flaw and not corrosion, federal safety investigators said ...