Improvements
Currently under construction
ODOT is upgrading the Abernethy Bridge, which spans the Willamette River between Oregon City and West Linn, to withstand a major earthquake and widening it to accommodate a future third travel lane. Additional improvements are being made to the bridge's adjacent on- and off-ramps to improve safety. This work is expected to be completed in 2025.
Project details
Earthquake-ready Abernethy Bridge
The project will upgrade the Abernethy Bridge to withstand a major earthquake. Once complete, the Abernethy Bridge will be the first earthquake-ready interstate bridge across the Willamette River in the Portland metropolitan area.
OR 43 and OR 99E interchange improvements
Remove the current I-205 northbound on-ramp from OR 43. Travelers will instead use a roundabout to access I-205 northbound. The roundabout will reduce crashes and conflicts with movements to and from OR 43. To learn more about how the roundabout will function, please see this animation.
Realign or widen OR 99E on- and off-ramps.
Walking and biking improvements
New pedestrian and bicycle facilities around OR 43 and OR 99E to increase comfort for people walking, biking or rolling in these areas.
Sound walls
A sound wall is planned near the southbound lanes of I-205 at Exit 9, as determined by a vote among eligible residents and property owners.
Project improvements
The Abernethy Bridge construction project is ODOT's largest highway construction project in over 45 years. When completed, the Abernethy Bridge will be the first earthquake-ready interstate bridge across the Willamette River in the Portland area.