In many ways, the design of the Sellwood Bridge was inadequate from the day it opened.
NW Reeder Rd over Dairy Creek
The Sellwood Bridge opened to traffic on December 15, 1925.
Multnomah County has replaced the Sellwood Bridge and its interchange with Highway 43. Construction is complete.
Multnomah County is replacing the Sellwood Bridge and constructing a new interchange where the bridge connects to Hwy. 43 in Portland. Construction will be completed in 2016.
Stark Street over Beaver Creek
Moving the 1100-foot long truss span to set up a detour bridge was another milestone in the effort to replace Multnomah County’s 87-year old Sellwood Bridge.
Even though a number of outside firms reviewed the bridge design plans, many were surprised that only two teams submitted bids for construction of the three proposed bridges.
The new Sellwood Bridge has a steel deck arch design, with three arches supporting the deck of the main river spans.
The Sellwood Bridge is the first registered project in Oregon to pursue Greenroads certification, an independent certification process for sustainable transportation projects.
To make room for the new bridge, more than 800 trees were removed. We’ve now planted more than we removed.
Who Has Been Involved?
The March 11, 2011 earthquake in Japan was a reminder of the importance of building structures so they can survive a major earthquake.
Multnomah County maintains and operates the Burnside, Broadway, Hawthorne, Morrison, Sauvie Island, and Sellwood bridges.
The Burnside Bridge Maintenance Project repaired and improved the bridge to keep it safe and working for another 15-20 years.
We maintain six Willamette River bridges and over twenty smaller structures elsewhere in the county.
Broadway, Burnside, Hawthorne, Morrison, Sauvie Island and Sellwood Bridges.
A Broadway Bridge computer upgrade continues through September 2021. A two-year Morrison Bridge Painting project begins in mid-October 2021.
22 bridges, viaducts and other structures in east Multnomah County, and one on Sauvie Island.
Bridges are of two general types: fixed and movable.
Individuals, organizations, agencies, and/or businesses may request Multnomah County to provide copies of procurement and contract documents.