Project Details
In 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. When completed, the Abernethy Bridge will be the first earthquake-ready interstate bridge across the Willamette River in the Portland area. Additional improvements are being made to the bridge's adjacent on- and off-ramps and bicycle and pedestrian routes to improve safety.
The bridge work is expected to finish in 2027.
Earthquake-ready Abernethy Bridge
The project will upgrade the Abernethy Bridge to withstand a major earthquake and accommodate a third travel lane. Once complete, the Abernethy Bridge will be the first earthquake-ready interstate bridge across the Willamette River in the Portland metropolitan area.
We are widening the bridge both to the inside and outside. For the inside bridge widening, we are ‘sliding’ the northbound and southbound lanes apart to create an additional 16 feet of roadway in the middle.
OR 43 and OR 99E interchange improvements
A new roundabout connecting OR 43 with northbound I-205 was completed on time in August 2023. The roundabout replaced an elevated on-ramp that will be demolished. The roundabout is expected to reduce crashes by 48%.
Realign or widen OR 99E on- and off-ramps.
Walking and biking improvements
The project includes improved pedestrian and bicycle routes along OR 43 and OR 99E to increase comfort for people walking, biking or rolling in these areas.
Sound walls
A sound wall is being constructed near the southbound lanes of I-205 at OR 99E in Oregon City, as determined by a vote among eligible residents and property owners.