National Transportation Safety Board

May 9, 2016, 10am PDT
Unless D.C. Metro abides by the Federal Transit Administration safety directives issued Saturday and takes "urgent action," they threatened to shut down all or parts of the system, the nation's second busiest subway after New York's.
The Washington Post
May 24, 2013, 12pm PDT
Two cars plunged off the I-5 truss bridge, 60 miles north of Seattle, into the frigid Skagit River at the end of Thursday's commute, but no deaths nor serious injuries occurred. The likely cause appears to be a big-rig hitting the 58-year-old bridge.
Washington State Bridge Collapse - No Fatalities