Investigators with the National Transportation Safety Board (NTSB) are calling on transportation officials across the nation to examine thousands of bridges following a probe into the January 2022, collapse of the Fern Hollow Bridge in Pittsburgh, Pennsylvania.
In a report published on May 18, NTSB provided an update on its investigation into the collapse of the bridge, which injured multiple people and damaged numerous vehicles.
Officials said that they have conducted 3-dimensional (3D) scans of select portions of the bridge’s superstructure, and performed mechanical and metallurgical testing of bridge components that were collected after it collapsed.
Additionally, investigators have conducted interviews and examined bridges that have similar construction or material features to Fern Hollow while also collecting and reviewing “a wide range of documentation from local, state, and federal sources,” they said….