Walt Whitman, Ben Franklin bridges among 5 in Philadelphia area to be evaluated for collapse risk, NTSB says
An NTSB list of 68 bridges that should be evaluated for collapse risk includes five in the Philadelphia area that cross the ...
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Walt Whitman, Ben Franklin bridges among 5 in Philadelphia area to be evaluated for collapse risk, NTSB says
built in 1926 Delaware River Turnpike Bridge, built in 1956 Walt Whitman Bridge, built in 1957 Commodore Barry Bridge, built in 1974 Betsy Ross Bridge, built in 1976 Bridge owners have been tasked ...
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NTSB urges assessment of 68 bridges for vessel strike vulnerability
Three Philadelphia-area bridges and one Bucks County span are among the 68 structures that the National Transportation Safety Board recommends be evaluated for risk of collapse due to vessel ...