Blue Bridge, Truss bridge in Kennewick, United States

The Blue Bridge, officially the Pioneer Memorial Bridge, is a four-lane through arch bridge with a truss superstructure painted blue and white suspension beams. It carries U.S. Route 395 across the Columbia River between Pasco and Kennewick, and is one of three bridges linking Pasco to the Tri-Cities.

The bridge opened on July 30, 1954, replacing an earlier green structure that could no longer handle the region's growing traffic needs. Its design was chosen to provide a durable crossing for the increasing number of vehicles traveling between the two communities.

Locals call it the Blue Bridge after the paint on the truss superstructure, though it was green when built and only later repainted; the official name, Pioneer Memorial Bridge, was chosen in a 1967 radio contest. A 15-by-25-foot U.S. flag flies on top, added during the 1986 re-decking through a donation drive sponsored by the Shriners.

The crossing is well maintained and safe for regular vehicle traffic heading between the two cities. Peak traffic typically occurs during morning and late afternoon hours when commuters are traveling to and from work.

The bridge was dedicated without an official name on July 30, 1954; "Pioneer Memorial Bridge" was only chosen in a 1967 radio contest, yet locals kept their own nicknames, and the blue repaint made "Blue Bridge" the popular name.