The scene near Mount Vernon, Wash., soon after the I-5 bridge collapse. (Stephen Brashear/Getty Images)
On Tuesday the National Transportation Safety Board will meet to determine the probable cause of the collapse on May 23, 2013, of a bridge on Interstate 5 spanning the Skagit River in Washington State.
The bridge is a major thoroughfare for truck and tourism traffic between Canada and the United States, with more than 71,000 drivers using it daily. Was this another case study in America’s aging infrastructure and the need for more federal transportation spending?