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Project Overview

Improving Safety and Reliability
This project will address long-standing congestion on OR 217 between Beaverton-Hillsdale Highway and OR 99W due to too many closely spaced interchanges: 10 interchanges in just over seven miles! This is 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 everyone on OR 217 get where they need to go more safely and reliably.

We will construct auxiliary lanes in both directions of OR 217 as part of the improvements. Auxiliary lanes are ramp-to-ramp connections on the highway that help reduce congestion 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 expect up to 73,000 hours of travel time saved each year with these improvements. Learn more about auxiliary lanes.

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. Read more about bicycle and pedestrian improvements.

Project Map

Map from Beaverton-Hillsdale Highway in Beaverton and Oregon 99W in Tigard. Nine project elements are shown as described below.

Project Elements

  • Add southbound auxiliary lane from Beaverton-Hillsdale Highway to OR 99W.
  • Add northbound auxiliary lanes from OR 99W to Scholls Ferry Road.
  • Replace Allen Boulevard southbound on-ramp and the Denney Road southbound off-ramp with a new frontage road
  • Replace the Hall Boulevard overpass between OR 99W and Pfaffle Street in Tigard, including wider sidewalks and bike lanes.
  • Build four sound walls to reduce noise for project neighbors. 
  • Widen three ramps: the Allen Boulevard southbound off-ramp, the Denney Road southbound on-ramp and the OR 99W northbound off-ramp.
  • Extend Fanno Creek Trail along the east side of OR 217 up to Allen Boulevard.
  • Widen sidewalk on north side of the Denney Road overpass.
  • Build sidewalks and bike lanes on the Hall Boulevard overpass from Cascade Avenue to Scholls Ferry Road.
  • Improve bridges including repaving bridge surfaces, adding protective screening and retrofitting bridge railings on the Allen Boulevard, Denney Road and Scholls Ferry overpasses.
  • Add stormwater management to protect Ash Creek, Red Creek, and Fanno Creek.

Project Benefits

  • The addition of new auxiliary lanes will reduce 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 people walking, bicycling and rolling.
Project design: 2017 through spring 2021
Construction: December 2021 through 2025

A schedule showing that construction is two years into the four-year construction period.PNG

Cost and Funding
The total project cost is $158 million primarily funded through the Keep Oregon Moving transportation package. The City of Beaverton and Washington County also contributed money toward the project.

Project Contacts

OR 217 Auxiliary Lanes Project Team 
Lili Boicourt

24/7 Noise Hotline for nighttime noise concerns

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Correo electrónico

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

Project Documents

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