About the Project

News

Construction Underway to improve safety and travel on I-5 through the Rose Quarter

Crews install construction entrance mats near the entrance to the stormwater construction site as part of erosion control measures.

Crews install construction entrance mats near the entrance to the stormwater construction site as part of erosion control measures.

The I-5 Rose Quarter Improvement Project broke ground on the first phase of construction August 25, 2025. This phase focuses on maintaining existing facilities and preparing the I-5 Rose Quarter area for future construction phases.

Work includes:

  1. New stormwater facilities near the junction of I-5 and I-405 that will enhance Willamette River water quality by improving filtration of stormwater runoff from the interstates.
  2. I-5 bridge work to preserve existing infrastructure, including necessary bridge maintenance and retrofitting for seismic resiliency.
  3. Extending the existing merging lane along southbound I-5 from the Moda Center to the I-84 ramp and Morrison Bridge/OMSI exits to create more time and space for merging.
  4. New signage for highway safety and future construction. 

Construction of this phase is expected to continue through the end of 2026. 

Stylized map showing two locations of New Stormwater Facilities, partially beneath I-5 between I-5 and N Mississippi Avenue just north of I-5 and I-405 intersections, and under I-5 at the intersection of I-5 and I-405 and a Stylized map showing locations of three elements of project work along I-5. 1 Bridge work along I-5 starting around N Interstate Ave and ending just south of Burnside Bridge. 2 Extending existing merging lane on I-5 between the I-84 off ramp and just north of the Morrison/Omsi Exit. 3 New signage just north of the bridge work.

Work Happening Now: Stormwater Facilities & I-5 Bridge Work

In August and September, construction crews installed jobsite trailers, completed land surveys, located underground utilities, and installed fencing and erosion control measures at the stormwater site. Crews also began measuring existing bracings on I-5 bridges over NE Oregon St to confirm details for the fabrication of new seismically resilient braces. 

This month, crews will continue to prepare sites for seismic retrofitting by measuring additional braces, removing lead paint, and installing anchor bolts in reinforced concrete on I-5 supporting structures above NE Lloyd Blvd and NE Oregon St. Crews will also begin excavation for the bioswale stormwater filtration facility.

Upcoming Traffic Impacts

Some local street traffic impacts are expected on NE Oregon Street and NE Lloyd Boulevard near the Oregon Convention Center as crews continue preparing sites for seismic retrofitting.

Stylized map displaying sidewalk and lane closures on NE Lloyd Blvd and NE Oregon St. The map also shows open bicycle and pedestrian routes along these closures.

Sign up for text alerts and visit our Construction Travel Impacts page to stay up-to-date with the latest news on traffic impacts and active closures.

Graphic that says "CONSTRUCTION AHEAD: To learn more about upcoming construction and sign up for automated alerts, visit us at www.i5rosequarter.org/welcome"

Translation/Interpretation Accommodations

For ADA Title II or Civil Rights Title VI accommodations, translation/interpretation services or for additional information call 503-731-4128, TTY (800) 735-2900 or use the statewide Oregon Relay Service: 7-1-1.

Si desea obtener información sobre este proyecto traducida al español, sírvase llamar al 503-731-4128.

Если вы хотите, чтобы информация об этом проекте была переведена на русский язык, пожалуйста, звоните по телефону 503-731-4128.

如果您想瞭解這個項目翻譯成 繁體中文 的相關資訊，請致電 503-731-4128.

如果您想了解这个项目翻译成 简体中文 的相关信息，请致电 503-731-4128.

이 프로젝트에 관한 한국어로 된 자료 신청방법 전화: 503-731-4128.

Nếu quý vị muốn thông tin về dự án này được dịch sang tiếng Việt, xin gọi 503-731-4128.

Icon for TripCheck with website url "www.tripcheck.com"

For 24/7 road conditions and traffic alerts visit tripcheck.com or call 5-1-1.

Visit the Portland Area Construction Information website for more information about projects in construction.