Cornelius Pass Road (Cornell to U.S. 26)


About the project:

Cornelius Pass Road is a heavily used north/south arterial roadway. It is an important commuter and truck route connecting Highway 30 in Multnomah County to Tualatin Valley Highway in southern Hillsboro. Cornelius Pass Road, between Cornell Road and U.S. 26, carries about 40,000 vehicles per day. It is not adequate for existing traffic and projected traffic growth. 

This project will widen Cornelius Pass Road, between Cornell Road and U.S. 26, to three lanes in each direction with a center median and dedicated turn lanes at several intersections, including U.S. 26.

Additional improvements include:

  • Sidewalks on both sides of the roadway
  • Buffered bike lane on the west side of the road
  • Separated two-way bike path on the east side
  • Intersection upgrades
  • Additional street lighting (south to Aloclek Drive)

The $18.3 million project is funded through a combination of sources including private development, Phase 3d of the County's Major Streets Transportation Improvement Program (MSTIP), state of Oregon Immediate Opportunity Funds (IOF) and the city of Hillsboro's Transportation Development Tax and Traffic Impact Fee programs.

CPOs 7, 8, 9; Commissioner Districts 2 & 4

Media releases

Paving causes traffic delays on Cornelius Pass Road
Cornelius Pass Road nighttime traffic delays Sept 20 - Oct 8, 2016
Cornelius Pass Road nighttime signal work July 25 - August 1, 2016

Cornelius Pass/Evergreen intersection signal shutdown planned for three nights (July 5-7, 2016)
Imbrie Drive 5-day partial closure begins June 23, 2016
Evergreen Parkway reopens two days ahead of schedule
Evergreen Parkway two-week closure begins May 16
Cornelius Pass/Evergreen signal shutdown planned for 3 nights (Mar/Apr 2016)
Construction Begins July 13, 2015
May 7, 2015 Open House
January 9, 2014 Open House

Project Contact

Engineering and Construction Services
Capital Project Management
Email: Engineering and Construction Services

Project Map

CPR Vicinity Map

Current Activity - completed


Activity Update 3/3/2017: Landscaping and utility work to continue through March with occasional daytime lane closures. Permanent striping to be scheduled.

Activity Update 1/5/2017: New travel lanes are open. Expect daytime lane closures for utility work and landscaping through February.

Activity Update 12/29/16: Lane opening will be delayed due to expected snow fall and sanding. New lanes will open after sand is cleared, no earlier than Jan. 3.

Activity Update 12/16/16: All travel lanes will open by Jan. 1, 2017, with temporary lane closures planned for remaining site work.

Activity Update 11/01/16: Nighttime work, including paving, striping and installation of traffic detection loops, will be performed from 7 p.m. to 6 a.m. Sundays through Saturdays until Nov. 30. There will continue to be lane closures during daytime hours, as needed. The project on schedule for completion by Dec. 31.

Activity Update 10/31/16: Paving is scheduled from 7 p.m. Nov. 1 to 5 a.m. Nov. 2 between the U.S. 26 eastbound onramp and Cornell Road. Lane closures, signal shutdowns and occasional side-street detours will result. Traffic will be controlled by flaggers.

Activity Update 10/28/16: Today's paving work ended at 10:30 a.m.

Activity Update 10/27/16: Lane shutdowns due to paving on Cornelius Pass Road between Ronler and Imbrie drives will occur through 1 a.m.-4 p.m. Oct. 28. Turn lanes may be periodically closed at Evergreen while asphalt cools. Expect delays; work is weather dependent.

Activity Update 9/20/16: More nighttime work is planned on Cornelius Pass Road September 20 - October 8, 2016. Please see media release for full details.

Activity Update 7/25/16: Nighttime traffic signal installation is planned on Cornelius Pass Road at multiple intersections; Evergreen Parkway, Ronler Drive, Cornell Road and the US 26 eastbound on-ramp; beginning the evening of July 25, 2016. Traffic will be directed by flaggers between the hours of 7 p.m. and 5 a.m. due to signal shutdown. Traffic signal installation should be complete by August 1.

Alternate routes to area sporting and community activities near the Cornelius Pass Road area are encouraged during construction work.


The contractor is beginning to work on new portions of the project, which means to expect new work zones and traffic patterns. 

  • Expect to see construction work begin on the west side of Cornelius Pass Road, as well as on Cornell Road east and west of Cornelius Pass Road.
  • The TriMet bus stop on the north side of Cornell Road (just west of Cornelius Pass Road) is temporarily closed for the next few months. 
  • Expect changes to traffic patterns on Cornelius Pass Road (between Cornell Road and US Highway 26) where traffic will be directed to new northbound lanes as updated traffic signals are activated. 
  • Switching to the new traffic signals will require signal shutdowns. This night work will include flaggers to direct traffic. Dates to be determined. 



Subscribe to receive periodic e-newsletters for this project, which will include notification about upcoming traffic impacts expected throughout the course of this project.


June/July 2016
June 29, 2016
April 2016
March/April 2016
March 2016
Feb. 2016
Dec. 2015
Nov. 2015
Sep. 2015
July 2015
May 2015


Open House - May 7, 2015

Open House - January 9, 2014

Project Timeline

Construction start date: 07/13/2015
Estimated completion date: 07/05/2017


Note: Dates are subject to change due to weather and/or other unforeseeable events.