Maintenance crews from the Multnomah County Bridge Section have constructed a new walkway under the Sellwood Bridge, replacing an existing wooden deck.
The Sellwood Bridge is the busiest two-lane bridge in Oregon, it provides the only crossing for a 12-mile stretch of the Willamette River, between Portland and Oregon City.
Bridge Characteristics Crosses the Sandy River, 4 miles SE of Troutdale, OR where Stark Street meets Crown Point Highway
Bridge Characteristics Stark Street, SE of Troutdale, OR
Multnomah County has begun a process to construct a new Sauvie Island bridge. The existing bridge to the island was built in 1950 and is at the end of its service life.
The Burnside Bridge is an example of a Strauss-type bascule bridge.
Vertical lift bridges use a system of counterweights and cables to move an interior lift span section that remains horizontal as it is raised up & down like an elevator.
We are bridge operators, maintenance workers and engineers who manage and maintain six Willamette River Bridges and 20 smaller bridges elsewhere in the county.
The county adopted a 20-year Bridges Capital Improvement Plan in 2015 that identifies and prioritizes capital projects required to sustain its six Willamette River crossings.
Bascule bridges have sections called "leaves" that rotate upward and away from the centerline of the river, providing clear passage for river traffic.
Summary of current traffic lane, sidewalk, and bike lane closures on Multnomah County bridges
Field work has been completed on the Broadway Bridge repainting project that began in June 2015.
After more than a century of use, the eight-foot diameter steel wheels that help open and close the Broadway Bridge were replaced.
Bridge construction means there will be traffic delays and lane and sidewalk closures on the bridge and the streets that run beneath it in 2017-2019.
The Burnside Bridge maintenance project will impact river traffic that passes under the bridge from 2017 - 2019.
The County is considering a number of performance attributes that are important to bridge functionality and community livability.
County crews repaired cracked crossbeams on two columns that support the east approach to the Hawthorne Bridge in 2015 -2016.
Contact information for Multnomah County's Bridge Division, a division of the Department of Community Services.
Maintenance work performed by Multnomah County on county bridges over the Willamette River.
A new lift span deck was installed on the Morrison Bridge in 2017.
Learn how to arrange a Morrison Bridge light display with the Willamette Light Brigade and about events organized by the PDX Bridge Festival.
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.
Multnomah County maintains and operates the Burnside, Broadway, Hawthorne, Morrison, Sauvie Island, and Sellwood bridges.