PITTSBURGH — The National Transportation Safety Board will be at the scene of the collapsed bridge in Frick Park for a number of days as it takes a “microscope” to the situation to determine what led the structure to fall into the ravine below it Friday morning.
NTSB Chair Jennifer Homendy said during a news conference Saturday she is unsure exactly how long the NTSB will be in Pittsburgh as crews work to remove the Port Authority bus and other vehicles from the rubble and determine whether there are any other parts of the wreckage to inspect.
Homendy stressed that the cause of the collapse will not be determined while NTSB officials are on scene, and that a final report can be expected in 12 to 18 months. She said a preliminary report could be expected in the next 10 days.