NTSB preliminary reports don’t usually reveal the cause of a crash since the investigation is still ongoing. A final report, which does usually contain the cause, will be released later.

NEW ORLEANS — Nearly a year after the collapse of the Francis Scott Key Bridge in Baltimore, the National Transportation Safety Board has issued a report detailing the factors leading to the ...

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 ...