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Why did Francis Scott Key bridge collapse so catastrophically? It didn't stand a chance.
Similarly designed bridges have a long history of catastrophic failure, but those failures more typically ... "propagate" to the entire bridge, steel-truss structures are particularly at risk.
Officials weigh replacing or repairing historically significant metal truss bridge in Gregg Township
GREGG TOWNSHIP — Union County and PennDOT are expected to move forward with an estimated $2.2 million project to either replace or repair a historically significant metal truss bridge in Gregg ...
Reporter-Herald22d
A landmark of Loveland: Fairgrounds Park bridge finally gains historic landmark status
It took Loveland City Council less than 10 minutes Tuesday night to start work on an action their counterparts in 2007 failed ... the bridge exemplifies the Pratt Truss design, patented in 1844 ...