The crew finished filling eight potholes on the Francis Scott Key Bridge and took a break in vehicles parked on the span nearby. The inspector checked their work, saw concrete still drying on two of the patches and began walking back to his own car.

“I started to hear a crumbling thunder noise,” Damon Davis told federal investigators, “and I instantly ran away.

“I stopped, I turned around, and I see the entire bridge collapse,” according to the NTSB transcript of the interview. “I call the foreman; then I quickly realize everything.”

Almost 20 months later, on Tuesday, the National Transportation Safety Board is scheduled to release the findings of its investigation of the Dali container ship’s crash into the Key Bridge, which plunged into the Patapsco River and killed six constructi

See Full Page