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Looks like that bridge collapse a while back was a design error and not caused by atomic pigeon poop as was rumored right after the collapse. Of course we all knew that already.
NAB
From the AP story:
The Minneapolis bridge, one of the busiest in Minnesota, collapsed during a Wednesday evening rush hour into a tangle of steel and concrete and crushed cars. In addition to the 13 killed, 145 people were injured. A school bus with 52 children aboard that came to rest on an angled piece of pavement provided one of the enduring images of the tragedy.
Investigators have yet to issue their final determination on the cause of the Minneapolis collapse but have said an error in the original design was the critical factor. Certain gussets—steel plates that fastened the trusses together—were roughly half the 1-inch thickness they should have been, investigators said. A National Transportation Safety Board lab report made public Tuesday noted at least two gussets broke partially along lines of corrosion.
NAB
From the AP story:
The Minneapolis bridge, one of the busiest in Minnesota, collapsed during a Wednesday evening rush hour into a tangle of steel and concrete and crushed cars. In addition to the 13 killed, 145 people were injured. A school bus with 52 children aboard that came to rest on an angled piece of pavement provided one of the enduring images of the tragedy.
Investigators have yet to issue their final determination on the cause of the Minneapolis collapse but have said an error in the original design was the critical factor. Certain gussets—steel plates that fastened the trusses together—were roughly half the 1-inch thickness they should have been, investigators said. A National Transportation Safety Board lab report made public Tuesday noted at least two gussets broke partially along lines of corrosion.
