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Project-Details



I-5 ODOT RealTime Signs (Ross Island Bridge to Terwilliger Boulevard) 

Project Completed

Region 1: Portland metro and Hood River County (Portland, Multnomah)


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ODOT installed RealTime Variable Advisory Speed (VAS) signs along a busy stretch of Interstate 5 south of downtown Portland from the Ross Island Bridge to Terwilliger Bouleva​​rd to improve safety and traffic flow by providing drivers with real-time traffic information. Vea información en español​​.​​


Impacts

Construction Impacts

This project is complete and no additional traffic impacts are expected.

Schedule

Construction: 2025-2026.

Design was completed in 2024.​

Details

About

ODOT is improving its RealTime system to make roads safer and help Oregonians get where they're going more efficiently by providing real-time traffic information to drivers. We installed RealTime Variable Advisory Speed (VAS) signs along a busy stretch of Interstate 5 south of downtown Portland from the Ross Island Bridge to Terwilliger Boulevard. 

This project:
  • Installed 12 RealTime VAS signs at two locations – three signs per direction near SW California Street (south of Exit 298) and near S Hamilton Street (south of Exit 299). These two installations include building new truss sign bridges over the freeway.
  • Upgraded the variable message sign on I-5 north near Iowa Street (south of Exit 298).
RealTime VAS signs:
  • ​​Calculate and display advisory speeds based on conditions ahead using traffic sensors, weather sensors, and cameras along the roadway.
  • Improve safety and traffic flow by reducing crashes and their associated delays.
  • Help prevent rear-end crashes by warning drivers of slowdowns ahead.
  • Give drivers advance notice about speed changes ahead due to current conditions so they can make real time decisions.

Location

I-5 |

I-5 from the Ross Island Bridge to SW Terwilliger Boulevard

I5_VSS-Project Area Map-2024.png

Cost and Funding

$7 million

Additional Information

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

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

Contacts & Media

Project map

Project Contact

Community Affairs Coordinator
Lili Boicourt
Email
Lili.D.Boicourt@odot.oregon.gov
Phone
503-731-8247

Last Updated

9/18/2026 12:31 PM

Project Number

21602

Project Documents

Related documents to this project
I-5 RealTime Signs Ross Island Bridge SW Terwilliger FEB 2025.pdfA project mailer discussing the construction of I-5 RealTime Signs at Ross Island Bridge and SW Terwilliger
Upcoming Projects On I-5 Mailer FEB 2024.pdfA project mailer showing the upcoming projects on I-5