Southbound I-5 Rose Quarter Closure Expected to Cause Significant Traffic Delays
Southbound Interstate 5 through Portland's Rose Quarter will be closed for up to five weeks, beginning September 11, leading to anticipated severe traffic delays.

Portland, OR, August 24, 2026 —
PORTLAND, OR – Southbound lanes of Interstate 5 (I-5) in Portland’s Rose Quarter are scheduled for a significant closure lasting up to five weeks, commencing on September 11. The closure is anticipated to cause severe traffic delays throughout the region.
The extended closure will impact the flow of southbound traffic as it passes through the Rose Quarter, a known bottleneck area. Officials are warning commuters and commercial drivers to prepare for substantial disruptions and to seek alternative routes where possible.
The exact duration of the closure is stated to be up to five weeks. Specific reasons for the closure were not provided in the summary. The impact on traffic is expected to be widespread, affecting not only local commuters but also potentially longer-distance travelers who rely on I-5 for North-South transit.
Motorists are advised to monitor local traffic advisories and consider adjusting travel times or routes to mitigate the impact of the closure. Further details regarding detours and recommended alternate routes are expected to be released by relevant transportation authorities closer to the start date.
Story summarized from the original created by Tarek Anthony on www.oregonlive.com, see more information here.