The 68 bridges that the NTSB recommends for assessment are those designed before the guidance was established and do not have a current vulnerability assessment, the NTSB said.

Over the last year, the NTSB identified 68 bridges built before 1991 that don't have a "current vulnerability assessment" and need to be evaluated. Latest U.S.

The National Transportation Safety Board is warning that 68 bridges in 19 states should be evaluated for their risk of collapse if a ship or other vessel were to strike them. The recommendations ...

WASHINGTON — Nearly a year since the catastrophic collapse of the Francis Scott Key Bridge after a container ship struck one of its piers, the National Transportation Safety Board is ...

The agency, over the last year, identified 30 owners of 68 bridges, crossing 19 states, designed prior to AASHTO's 1991 guidance that do not have a current vulnerability assessment.

NTSB recommends evaluations for ... "Today’s report does not suggest that the 68 bridges are certain to collapse," the NTSB ... which opened in 1972, was built before vulnerability assessments ...

The 68 bridges that the NTSB recommends for assessment are those designed before the guidance was established and do not have a current vulnerability assessment, the NTSB said.

WASHINGTON — Nearly a year since the catastrophic collapse of the Francis Scott Key Bridge after a container ship struck one of its piers, the National Transportation Safety Board is ...

Nearly a year since the catastrophic collapse of the Francis Scott Key Bridge after a container ship struck one of its piers, the National Transportation Safety Board is recommending that the owners ...