Vehicles travel on Interstate 395 (I-305) next to a building construction site in Washington, D.C., U.S., on Wednesday, July 29, 2015. The U.S. Senate advanced its version of a long-term highway funding bill Wednesday as Congress prepares a stopgap measure to keep funds flowing for the next three months. The Highway Trust Fund's authorization is set to expire after July 31. Photographer: Andrew Harrer/Bloomberg via Getty Images