A prolonged short circuit in the third-rail power system of Washington, D.C.’s Metrorail system has been determined to be the probable cause for a January 2015 electrical arcing and smoke incident that killed one passenger and injured dozens more, according to the National Transportation Safety Board (NTSB).
On Sept. 9, 2010, a 30-in.-dia, Pacific Gas & Electric-owned natural-gas pipeline exploded (above), killing eight people in a residential neighborhood of San Bruno, Calif.
An examination of the legal record shows how concern on paper prior to work on a bridge at Baylor University in 2014 did not foreclose choices and lapses in the field that culminated in tragedy.
A fatality linked to a September, 2015 forklift accident at a bridge connecting Wisconsin and Minnesota apparently triggered harsh words from OSHA officials.