PITTSBURGH—Investigators looking into the collapse of a Pittsburgh bridge nearly one year ago are looking closely at damage to the legs of the structure, the National Transportation Safety Board said Thursday.
An agency update on the Jan, 28, 2022, failure of the Fern Hollow Bridge said its engineers are examining “multiple fractures” found on the bridge’s legs. All four legs have been scanned to enable further analysis.
The span dropped a bus and four cars some 100 feet into a ravine, injuring several people hours before President Joe Biden visited the city to promote a massive infrastructure law. The span carried Forbes Avenue over Frick Park, Fern Hollow Creek and Tranquil Trail….