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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.
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.
10th Street to OR 213
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.
Stafford Road to 10th Street
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.
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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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.
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.
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.
The following interchange and ramp changes will improve safety and travel-time predictability on I-205:
Other elements will improve safety and connectivity for people who walk, bike and roll in the interchange areas:
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.
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.
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.
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.
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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Opinions expressed in comments do not necessarily reflect official positions of the Oregon Department of Transportation.