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OR 217: Auxiliary Lanes Project

Design Phase

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

​​The Oregon Department of Transportation is 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.​​​


Construction Impacts

Construction is expected to begin in 2021 and continue through 2025. Likely impacts include:
  • Extended weekend and directional closures of lanes and interchange ramps on OR 217
  • Construction noise
  • Lane closures on some local roads

Meetings and Events

Read the July 2020 e-newsletter​.

Read the November 2019 e-newsletter​

An open house was held on May 21st, 2019. Thank you to all who attended.

If you were not able to make it or would like to review the information in more detail, you can view the project display boards in English and Español​ as well as the fact sheet in English​​ and Español​​.


​Project design: Now to 2021

Construction expected: late 2021 through 2025​



Improving Safety and Travel Reliability

The OR 217 Auxiliary Lanes Project will improve safety and help prevent bottlenecks on a four-mile stretch of OR 217 between Beaverton-Hillsdale Highway and OR 99W. Adding new auxiliary lanes, or on-ramp to off-ramp connections, reduces merging slow-downs and gives drivers more time to make lane changes.

This reduces bottlenecks for drivers already on the highway. See the project map below for more details about which interchanges will be connected by the new auxiliary lanes.

The project will also add a new frontage road, replace a major bridge structure and add strategic bicycle and pedestrian improvements.

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:

  • Adding southbound auxiliary lane from Allen Blvd to OR 99W.
  • Adding northbound auxiliary lanes from OR 99W to Scholls Ferry Rd.
  • Replacing the Allen Boulevard southbound on-ramp and the Denney Road southbound off-ramp with a new frontage road to allow drivers to more safely travel south from Allen Boulevard to Denney Road.
  • Replacing the Hall Boulevard overpass between OR 99W and Pfaffle Street, including new sidewalks and bike lanes.
  • Sound walls to reduce noise for project neighbors.
  • Widening three ramps: the Denney Road southbound on-ramp, the Scholls Ferry northbound off-ramp and the OR 99W northbound off-ramp.

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

Auxiliary lanes separate the slower vehicles entering or exiting the highway from higher speed vehicles continuing to drive along the highway. They allow for more stable flow of traffic at interchanges. ODOT expects the project to reduce the number of crashes in the area by separating the weaving and merging lane from the rest of the highway.​

Example illustration of an auxiliary lane:

An auxiliary lane connects on- ramps to off-ramps
Note: The above image is not to scale and has been provided for illustrative purposes only.

For Southbound Travelers:

  • A fully-connected auxiliary lane from Beaverton-Hillsdale Highway to OR 99W will allow drivers to cross multiple interchanges without merging into OR 217 traffic.
  • A new frontage road between Allen Boulevard and Denney Road allows drivers to bypass OR 217 entirely.

For Northbound Travelers:​

  • A new auxiliary lane will connect OR 99W to Greenburg Road.
  • A second auxiliary lane will continue past OR 99W all the way to Scholls Ferry Road, allowing drivers to cross multiple interchanges without merging into OR 217 traffic.​

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​.

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. Construction will depend on funding availability.

​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 newsletters.
  • Direct outreach to nearby neighborhoods and businesses.
  • Updates to​ for lane closures once construction begins.
  • Website updates​​​​​​​.


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

Cost and Funding

Total project cost is $134 million.  These safety improvements are primarily funded by ODOT via the 2017 Keep Oregon Moving legislation. Read more about HB 2017.​


Project benefits include:

  • ​Preventing bottlenecks that cause congestion and crashes, which create delays for travelers and freight.
  • A new frontage road for southbound drivers connect Allen Boulevard and Denney Road will make trips safer for drivers by decreasing the amount of merging on the highway.
  • Enhancing ​local neighborhoods and expanding 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

7/13/2020 3:34 PM

Project Number


Project Documents

Related documents to this project
2019_May21_OR217_Paneles_Español.pdfPaneles de exposición del proyecto usadas en la sesión pública el 21 de mayo.
2019_OR217_November_Enewsletter.pdfNovember 2019 e-newsletter
2019_May21_OR217_DisplayBoards.pdfProject display boards used at the May 21st open house.
18841-OR217-OR10-OR99W-Snapshot.pdfA brief overview of the project, including costs and benefits.
2020_0410_OR217_Factsheet.pdfSpring 2020 fact sheet
2020_0512_OR217_FolletoInformativo.pdfFolleto informativo, primavera 2020

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