Over the last year, the NTSB identified 68 bridges built before 1991 that don't have a "current vulnerability assessment." The recommendations were issued to 30 owners of the 68 different bridges ...

The National Transportation Safety Board recommended that 68 bridges undergo ... began requiring vulnerability assessments of new bridges in 1994, the NTSB said. The Key Bridge was built before ...

The U.S. National Transportation Safety Board recommended March 20 that 30 owners of 68 bridges across 19 states conduct a vulnerability assessment to determine the risk of bridge collapse from a ...

NTSB urged 30 owners of 68 bridges across 19 states to conduct a vulnerability assessment ... the AASHTO acceptable level of risk. The NTSB recommended that bridge owners develop and implement ...

The bridge is among 68 nationwide - including Boston’s Tobin Bridge and Cape Cod’s Borne and Sagamore bridges - that do not ...

The NTSB told 30 owners of 68 bridges across 19 states to conduct a vulnerability assessment to determine the risk of a bridge collapse from a vessel collision. "We conclude in our report that had ...

The Rhode Island Turnpike and Bridge Authority has responded to a letter from the National Transportation Safety Board ...

Federal officials identified 68 bridges across the U.S. that should undergo reviews to determine their vulnerability to collapse in a ship strike.

Over the last year, the NTSB identified 68 bridges built before 1991 that don't have a "current vulnerability assessment." The recommendations were issued to 30 owners of the 68 different bridges ...