About last year's Interstate 35W Minneapolis bridge collapse

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They found a design flaw and it wasn't news. From Associated Press:
Gov't: Design Flaw in Bridge Collapse
Federal investigators have identified a design flaw as the cause of last year's Interstate 35W Minneapolis bridge collapse that killed 13 people and injured about 100, a congressional official said Tuesday.

The official, who was briefed by the National Transportation Safety Board, said that investigators found a design flaw in the bridge's gusset plates, which are the steel plates that tie steel beams together. The official spoke on the condition of anonymity so as not to pre-empt an update being provided later Tuesday by the NTSB chairman, Mark V. Rosenker.

The findings are consistent with what the NTSB said about a week after the Aug. 1 collapse, in which the bridge plunged into the Mississippi River. At the time, the NTSB said it had found issues with the collapsed bridge's gusset plates, but expected a full investigation to take more than a year.
And this was not a surprise to anyone:
The bridge was deemed "structurally deficient" by the federal government as far back as 1990.

Late last year, President Bush signed a massive spending bill which included $195 million to help replace the bridge. That came on top of the $178.5 million the federal government has already given Minnesota for the project.
So much money and zero work done... I keep thinking about Seattle and its downtown viaduct (route 99) -- what is the government's opinion on that? The structure is old and in need of earthquake and structural remediation. Is it in worse or better condition than the 35W bridge.

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This page contains a single entry by DaveH published on January 15, 2008 8:25 PM.

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