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ODOT’s I-205 Improvements Project design is progressing, which addresses congestion and safety on a seven-mile stretch of I-205 between Stafford Road and OR 213.

At this online open house, you can learn about the project benefits, timeline, improvements and what to expect as the process moves forward.

About the Project

This project will help improve our economy by providing Oregonians faster, safer travel to access work and critical services, even after an earthquake or other major disaster.

The project widens I-205 by adding a third lane in each direction, improves the Abernethy Bridge and eight other I-205 bridges in the project area to ensure they can survive a major earthquake, and increases safety by addressing closely spaced entrance and exit ramps.

Project Overview

Project need

What is the problem?

Over 100,000 vehicles a day use I-205 in the project area, including almost 9,000 freight vehicles. This is the last two-lane section of I-205, and drivers experience nearly seven hours of traffic backups in this bottleneck every day, significantly impacting regional and state economic activity.

I-205 is designated as the north-south lifeline route through Oregon after a major earthquake. However, many of the bridges, including the Abernethy Bridge, are not earthquake-ready.

Closely spaced northbound on- and off-ramps at the Abernethy Bridge make it difficult for travelers to enter and exit I-205. The frequent weaving and merging conditions cause traffic to slow or stop, which contributes heavily to congestion.

Project Benefits

This project will help improve our economy by providing Oregonians faster, safer travel to access work and critical services, even after an earthquake or other major disaster.

Earthquake-Ready Bridges: The Abernethy Bridge and eight other I-205 bridges will be upgraded or replaced to withstand a major earthquake. An earthquake-ready corridor will support this critical lifeline route in providing supplies and services to the region after a disaster.

Fewer Crashes: Improved interchanges and on- and off-ramps will make travel safer, resulting in fewer crashes.

Reduced Congestion and Travel Times: The project improves travel for Oregonians by reducing crashes and daily congestion by 4.75 hours each day by making it easier and safer to enter and exit the interstate and adding a third lane in each direction.

Project Timeline and Phases

Phase 1
10th Street to OR 213

  • Design complete fall 2021
  • Construction anticipated to begin 2022

We are working to develop smaller packages of work within each of these two phases of I-205 construction. The first construction package is scheduled to begin work in 2022, and we look forward to sharing more information before construction begins.

Project design is fully funded, and ODOT is actively working to identify construction funding. Pending the result of the I-205 Tolling National Environmental Policy Act (NEPA) process, toll revenue could be a potential funding source. This project is part of a Comprehensive Congestion Management and Mobility Plan through ODOT’s Urban Mobility Office.

Phase 2
Stafford Road to 10th Street

  • Design complete 2025
  • Construction anticipated to begin in 2025

Project Phasing Map

(Project Phasing Map. Click to enlarge.)

Disadvantaged Business Enterprise (DBEs) Contracting Opportunities

ODOT is implementing numerous strategies to position DBEs for success and build a pipeline for future minority and female workers. ODOT will be maximizing opportunities in setting contracting and workforce goals. Some of these strategies include industry outreach events like “Meet the Primes” matchmaking DBE events, small business capacity strengthening, technical assistance, robust performance metrics to hold the construction contractor accountable. Visit ODOT’s Office of Civil Rights DBE webpage for more information.

Community Outreach

Communicating with travelers, businesses and communities is a project priority. Engagement has included stakeholder interviews, in-person and online open houses, community briefings and information booths at community events. We are broadening the outreach program to more closely connect with regional and statewide communities, including those who speak Spanish, Chinese, Vietnamese and Russian. View and share the translated project materials.

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Project Improvements

Review the project solutions map and click on the expandable sections below to learn more.

Proposed solutions map.

(Proposed Solutions Map. Click to enlarge.)

Click on the icons below to learn more about the project solutions.

A third lane will be added in each direction on I-205 between Stafford Road and OR 99E as well as a northbound entrance-to-exit lane, also referred to as an auxiliary lane, between OR 99E and OR 213. 

Widening I-205 requires removing part of the rock slope on the northbound side of I-205 between the Sunset Avenue overcrossing and the OR 43 interchange.

Simulation showing new, three lane condition on I-205.

(Simulation of new 3-lane configuration on I-205. Click to enlarge.)

Upgrades to the Abernethy, Main Street, 10th Street and Blankenship Road bridges will help them withstand a major earthquake. Once complete, the Abernethy Bridge will be the first earthquake-ready interstate structure across the Willamette River, making I-205 the regional north-south lifeline route after a disaster.

Main Street will include a new 6-foot sidewalk on both sides of the street under the bridge.

Isometric View of Completed Bridge.

(Bird's-eye-view of completed bridge. Click to enlarge.)

Isometric View of Completed Bridge.

(Side view of completed bridge. Click to enlarge.)

Widening I-205 requires rebuilding the West A Street and Sunset Avenue bridges that cross over I-205. These bridges, along with the Tualatin River, Borland Road and Woodbine Road bridges, will be rebuilt to withstand a major earthquake.

The following new replacement bridges will be wider than the current bridges, allowing more room for people walking, biking and rolling.

Simulation of West A Street bridge.

The new West A Street bridge includes a 6-foot shoulder/bike lane, a 7-foot curb and a sidewalk in each direction with an 8-foot parking area on one side. (Click to enlarge.)

Simulation of Sunset Avenue bridge.

The new Sunset Avenue bridge includes a 6-foot shoulder and an 8-foot sidewalk in each direction. (Click to enlarge.)

The following interchange and ramp changes will improve safety and travel-time predictability on I-205:

  • Removing the current I-205 northbound on-ramp from OR 43 and replacing it with a roundabout will reduce crashes to and from OR 43.
  • Extending the OR 43 to I-205 northbound on-ramp across the Abernethy Bridge.
  • Realigning or widening the on-and-off ramps at OR 99E.
  • Removing the Broadway Street bridge overcrossing. 

Other elements will improve safety and connectivity for people who walk, bike and roll in the interchange areas:

  • A new multi-use path along the riverside of OR 43 from the I-205 southbound exit ramp to the intersection with Willamette Falls Drive.
  • A new rapid flashing beacon and crosswalk to support people walking and bicycling across OR 43 to access Willamette Falls Drive and West A Street.
  • A new multi-use path and a 6-foot sidewalk connection with a new crossing on Clackamette Drive.
  • A new 8-foot sidewalk connection between ramp terminals on OR 99E.
  • Improved connections with other area trails and paths.

OR 43 Interchange.

(OR 43 Interchange. Click to enlarge.)

Five traveler information signs were installed in 2020 to help travelers get where they’re going more safely and efficiently. These signs display traffic flow information, roadway conditions and advisory speed limits. Two additional traveler information signs are planned.

Installed traveler information sign.

(Installed traveler information sign. Click to enlarge.)

Sound walls are planned at two locations near Blankenship Road and one location near the southbound lanes of I-205 at exit 9, as determined by a vote among eligible residents and property owners.

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What to Expect During Construction

Construction is anticipated to begin in 2022.

Traffic Impacts

One construction begins, two lanes of traffic on I-205 in each direction will be open during weekday business hours. Travelers can expect lane closures and some full closures with signed detours. Local roads will also experience lane closures and other traffic restrictions during the project.

More information will be provided as the project nears construction in 2022. Sign up to receive email updates about travel impacts at the How to Stay Informed station.

Rock Cut and Rock Removal

Removing part of the rock slope on the northbound side of I-205 is necessary to create space for the additional northbound travel lane in each direction on I-205 between the Sunset Avenue overcrossing and the OR 43 interchange.

While crews are actively working on the rock cut, they will follow safety processes which will include short-term traffic impacts to I-205 traffic and nearby local streets. Area residents will receive notification prior to the activity.

Rock Blasting Working Zone.

(Depiction of rock blasting work zone. Click to enlarge.)

Construction Noise

Construction will cause some increases in noise. Sources of noise will include rock removal and general construction. The project will obtain nighttime noise variances from project area jurisdictions. Before construction begins, a nighttime noise hotline will be shared.

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How to Stay Informed

Thank you for your participation! We will see you in early 2022 with updates about construction.

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