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Supplying safety and travel-time predictability to a regional economic engine

ODOT is beginning the I-205 Widening and Seismic Improvements Project, which will address congestion and traveler safety issues on a seven-mile stretch of I-205 between Stafford Road and OR 213. The project adds a third lane in each direction and upgrades the Abernethy Bridge and the eight other I-205 bridges in the project area to withstand a major earthquake.

Project Overview

More than 100,000 vehicles use this section of I-205 each day and drivers experience 5 ½ hours of congestion daily. This project will help relieve congestion by adding a third lane in each direction on a seven-mile stretch of I-205 between Stafford Road and OR 213.

The Abernethy Bridge, which crosses the Willamette River between West Linn and Oregon City, and the eight other I-205 bridge sites along this stretch of highway are vulnerable to severe damage or collapse in the event of a major earthquake. ODOT has designated I-205 as a statewide north-south lifeline route, which means it must be operational quickly if an earthquake renders other roadways unusable or impassable. It will be a critical route in getting supplies and services to the region.

This project will upgrade these bridges so they can withstand a major earthquake.

629 crashes in this corridor 2010-2014, 5.5 hours congestion per day, $5.5M cost of injuries, damage, delay and fuel from crashes

What are the issues?

  • The two-lane section of I-205 between the Abernethy Bridge and the Stafford Road interchange creates a bottleneck that causes congestion and crashes, creating delays for travelers and freight.
  • Closely spaced on-ramps on I-205 northbound on the Abernethy Bridge contribute to safety and travel-time predictability issues.
  • The Abernethy Bridge and eight bridge sites in the project area are seismically vulnerable in the event of a major earthquake.

What are the solutions?

  • Adding a third lane on I-205 in each direction between Stafford Road and OR 99E will improve traffic operations and reduce vehicle crashes. The improvements will make I-205 a consistent three-lane interstate in each direction from the Columbia River to I-5.
  • Seismically upgrading the Abernethy Bridge and all other I-205 bridges within the project limits ensures the corridor functions as a statewide north-south lifeline route after a major earthquake.

Learn more about the proposed solutions.

News & Events

Get the latest project news and media coverage.

Read past news, see upcoming events.

Thank you for participating in the Online Open House!

Jan 22, 2018 | News and Alerts

163 people provided comments during the I-205 Widening and Seismic Improvements online open house in November/December. Your feedback is important and has been reviewed by the project team. ODOT will present a project Cost to Complete report to Oregon Legislature in February. The legislature makes funding decisions regarding the project. Check back here for updates or sign up to get email updates on project developments.

Click on Project Details to watch videos and learn about the proposed improvements.


Contact us

For more information about this project, contact:

Kimberly Dinwiddie, ODOT Community Affairs Coordinator
Phone: 503-731-8281 | Email: Kimberly.Dinwiddie@odot.state.or.us

Send us comments.

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