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OR 217 Auxiliary Lanes Project

Design Phase

Region 1: Portland metro and Hood River County (Beaverton, Tigard, Washington)

​​​​We are working to improve safety and help prevent bottlenecks on OR 217 between Beaverton-Hillsdale Highway and OR 99W. Construction is expected to begin in late 2021.​​​

Visit the online open house now through December 17, 2020 for more project updates and let us know what you think! 

¡Visite el sitio suplementario hasta el 17 de diciembre de 2020 para obtener más detalles sobre el proyecto y enviar sus comentarios! ​


Construction Impacts

We know more about what types of traffic impacts people will encounter during the four-year construction project, starting in late 2021. Construction will happen in phases and the sequencing and detailed schedule will be communicated as the project progresses. Detour routes will be established in partnership with local jurisdictions. In addition to nighttime lane and ramp closures, anticipated traffic impacts over the life of the project include:

  • 24/7 single lane closures for up to nine days at a time (this will happen twice; once near Scholls Ferry Road and once near OR 99W) and up to two days at a time (this will also happen twice; once near Greenburg Road and once near Denney Road).
  • Full closures of one direction of OR 217 for up to five weekends.
  • Up to five-month closure of the southbound on/off ramps at Denney Road before the new frontage road is open.
  • Up to two-month closure of northbound entrance loop ramp from OR 99W.
  • Up to six-month closure of the Hall Boulevard overpass between OR 99W and Pfaffle Street. A bike/pedestrian temporary bridge will be available during the closure as well as a signed detour for drivers.
  • Lane closures on local roads adjacent to OR 217.
There are more details about these impacts available on the online open house.

Meetings and Events

Visit the online open house available now through December 17, 2020! 

We are attending the following neighborhood association meetings to give briefings on the project:

  • CPO 4M (10/28/20)
  • Denney Whitford/Raleigh West NAC (11/12/20)
  • Greenway NAC (11/19/20)
  • Central Beaverton NAC (12/7/20) - upcoming
  • CPO 1 (12/8/20) - upcoming
  • CPO 3 (1/21/21) - upcoming
Please contact us if you'd like us to attend your neighborhood/business/community meeting.

View the project fact sheet​. 

Vea el folleto informativo del proyecto.

Read the July 2020 e-newsletter​.

Read the November 2019 e-newsletter​


​Project design: Now to spring 2021

Construction expected: late 2021 through 2025​



Visit the online open house​ now through December 17, 2020 for more project updates. 

Improving Safety and Travel Reliability

The OR 217 Auxiliary Lanes Project will address long-standing bottlenecks on the highway between Beaverton-Hillsdale Highway and OR 99W due to too many closely spaced interchanges. Auxiliary lanes are ramp-to-ramp connections that help reduce bottlenecks by giving drivers more space and time to merge safely. This decreases conflicts, improves safety and the flow of traffic, and ultimately allows the existing lanes to work more efficiently.

We will also address one of the worst bottleneck locations at the Allen Boulevard and Denney Road interchanges by adding a new frontage road, replace a major bridge structure and build four sound walls.

We aren't just making improvements to the highway itself. We also need to make the area surrounding OR 217 safer for all users. In partnership with the City of Beaverton and Washington County, we are making targeted improvements to local bicycle and pedestrian routes.

Project Need

OR 217 between Beaverton and Tigard has 10 interchanges in just over seven miles and some of the shortest merging spacing in the region. The interchange spacing, combined with 120,000 vehicles a day, leads to high crash rates and travel delays. The interchanges at Allen Boulevard and Denney Road are some of the worst bottleneck locations. This project will help minimize bottlenecks and help everyone on OR 217 get where they need to go.

Project Map


​Project El​​ements

Major elements of the OR 217 Auxiliary Lanes Project include:

  • Add southbound auxiliary lane from Beaverton-Hillsdale Highway to OR 99W.
  • Add northbound auxiliary lanes from OR 99W to Scholls Ferry Rd.
  • Replace the Allen Boulevard southbound on-ramp and the Denney Road southbound off-ramp with a new frontage road. This will reduce the amount of merging on the highway and in turn increase safety and reliability.
  • Replace the Hall Boulevard overpass between OR 99W and Pfaffle Street, including wider sidewalks and bike lanes.
  • Build four sound walls to reduce noise for project neighbors.
  • Widen two ramps: the Denney Road southbound on-ramp and the OR 99W northbound off-ramp.

What is an auxiliary lane and how will they improve travel on OR 217?

Auxiliary lanes are ramp-to-ramp connections that help reduce bottlenecks by giving drivers more space and time to merge safely. 

Studies show that auxiliary lanes reduce crashes by approximately 20%.  Fewer crashes mean a safer and more efficient highway.

Pedestrian and Bicycle Improvements

This project also includes targeted improvements to local bicycle and pedestrian routes, in partnership with City of Beaverton and Washington County, including:

  • Extend Fanno Creek Trail along the east side of OR 217 up to Allen Boulevard. This connection completes the OR 217 parallel bike path network from OR 99W to Allen Boulevard.
  • Widen sidewalk on north side of Denney Road from Fanno Creek Trail to SW 105th Avenue.
  • Build sidewalks and bike lanes on Hall Boulevard from Cascade Avenue to Scholls Ferry Road. 

Sound Walls

ODOT's noise study found that sound walls could help reduce highway noise for project neighbors along four section of OR 217. A majority of residents and property owners who would benefit from these sound walls voted in favor of each sound wall in 2019. Read more about the process on the sound wall page​.

​We will keep you informed

ODOT is committed to keeping you informed during construction. We will share progress and respond to questions with tools including:

  • Email updates.
  • Direct outreach to neighbors and key stakeholders.
  • Virtual briefings.
  • Website updates.
  • Future (virtual) open houses.
  • Updates to​ for traffic impacts.
  • Noise hotline.


OR 217 | OR 217 southbound Beaverton-Hillsdale Highway to OR 99W and OR 217 northbound OR 99W to Scholls Ferry Road​

Cost and Funding

The total project cost is $134 million. We are delivering on a legislative commitment to make these safety improvements through the Keep Oregon Moving (HB 2017) transportation funding package. Read more about HB 2017.​


Project benefits include:

  • The addition of new auxiliary lanes help prevent bottlenecks that cause congestion and crashes, which create delays for travelers and freight.
  • A new frontage road for southbound drivers connecting Allen Boulevard and Denney Road will make trips safer for drivers by decreasing the amount of merging on the highway.
  • New pedestrian and bicycle improvements enhance local neighborhoods and expand routes for pedestrians and people on bikes.

Additional Information

​Habla español? Podemos proveer la información en esta publicación en español. Para recibir la información en español, por favor llame al (503) 731-4128.

For Americans with Disabilities Act (ADA) or Civil Rights Title VI accommodations, translation/interpretation services, or more information call 503-731-4128, TTY 800-735-2900 or Oregon Relay Service 7-1-1

Contacts & Media


Project Contact

Community Affairs Coordinator
Lili Boicourt

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Last Updated

11/24/2020 9:28 AM

Project Number


Project Documents

Related documents to this project
2019_0521_OR217_Paneles_Español.pdfPaneles de exposición del proyecto usadas en la sesión pública el 21 de mayo, 2019.
2019_OR217_November_Enewsletter.pdfNovember 2019 e-newsletter
2019_0521_OR217_DisplayBoards.pdfProject display boards used at the May 21st, 2019 open house.
18841-OR217-OR10-OR99W-Snapshot.pdfA brief overview of the project, including costs and benefits.
2020_1117_OR217_Factsheet.pdfProject fact sheet, November 2020.
2020_1118_OR217_FolletoInformativo.pdfFolleto informative, noviembre 2020.

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