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 to determine their risk of collapse if involved in a vessel collision.
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 to determine their risk of collapse if involved in a vessel collision.