Bridges

Who are we and what do we do?

The Multnomah County Bridge Section manages and maintains six Willamette River Bridges and over 20 smaller bridges elsewhere in the County. Our primary goals are to provide safe transportation facilities for the public, to protect the public investment by preserving our historic bridges, and to help plan for the transportation needs of the 500,000 new residents expected in the Portland area by the year 2020. Our facilities serve Willamette River users, pedestrians, cyclists, automobile commuters, buses, and commercial users. Our employees include: the operators who raise and lower the bridges; the maintenance workers who inspect, respond to emergencies, perform preventative maintenance, and perform maintenance repairs; and engineers who are responsible for design and construction of major repairs, renovations, and upgrades.

Who's responsible for that bridge?

Multnomah County maintains and operates the BurnsideBroadwayHawthorne, MorrisonSauvie Island, and Sellwood bridges.

The Oregon Department of Transportation maintains the Ross Island, Marquam, Fremont and St. John's bridges.

The Union Pacific Railroad maintains the Steel Bridge.


Ongoing County projects

Sellwood Bridge Project

The project to replace the 88-year-old Sellwood Bridge is in the construction phase. The new bridge is expected to open in the fall of 2015, with project completion in 2016. Visit the project website to learn more and tell us what you think. 

Willamette River Bridges Capital Improvement Plan

The County is in the midst of a major update to its 20-year Willamette River Bridges Capital Improvement Plan (CIP) to identify and prioritize capital projects required to sustain these important river crossings.

Morrison Bridge Lift Span Deck Replacement

In early 2014 the county will investigate the condition of the open steel grating on the lift span deck that was replaced in 2011 - 2012.  The deck surface is showing signs of premature wear.  The investigation will require occasional lane closures.

Read more.


Other projects

Willamette Light Brigade

The colorful architectural lights on the Morrison Bridge are now available for your special lighting display. To learn more about the program and download an application and visit the Willamette Light Brigade, a local non-profit organization that administers the program.