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Project-Details







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

Construction Phase

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


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ODOT is installing 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

Traffic Impact

Drivers should expect nighttime lane closures and shoulder closures during the construction period through 2025.

Construction Impacts

Saturday, Nov. 29- Saturday, Dec.​​ 6:
  • Nighttime single lane closures and daytime shoulder closures.​
Update Nov. 18: All overnight closures of I-5 are complete
The contractor closed I-5 overnight two nights in order to install the new RealTime sign bridges. This work is now complete and there are no more overnight closures. Nighttime single lane closures and shoulder closures will continue intermittently as needed through the end of the year.

Nighttime Noise
Those working or living in the area may hear the noise from heavy equipment, construction trucks, beeping noise when vehicles are in reverse, and equipment such as auger drills, backhoes, concrete mixers and saws, jackhammers and generators. A 24/7 nighttime noise hotline is available at: 503-276-7816.

Schedule

Construction: March 2025 through fall 2025. 

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 are installing 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 will:
  • Install 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.
  • Upgrade 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

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Last Updated

11/26/2025 3:25 PM

Project Number

21602

Project Documents

Related documents to this project
Upcoming Projects On I-5 Mailer FEB 2024.pdfA project mailer showing the upcoming projects on I-5
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