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 ...

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 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. In addition to the ...

The NTSB over the last year identified 68 bridges designed ... At the time, AASHTO also recommended that all bridge owners conduct a vulnerability assessment on existing bridges to "evaluate ...

NEWS INVESTIGATES HAS LEARNED A RISK ASSESSMENT IS UNDERWAY FOR THE CHESAPEAKE BAY BRIDGE. OUR EFFORTS TO CONFIRM THAT INCLUDED FILING A PUBLIC INFORMATION ACT REQUEST AND CONTACTING SEVERAL STATE ...

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. They include iconic ...