Skip to Main Content View Text-Only

The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info

Subscribe to RSS feed

Most Recent

View Less

Construction Starts on Terraced Rain Gardens Project


rain garden project construction signWondering about the new construction along I-5 in Southwest Portland? Construction started in July on our Terraced Rain Gardens Project.  


Environmental Services is partnering with Oregon Department of Transportation to construct a series of terraced rain gardens to treat stormwater runoff at the intersection of Interstate 5, SW Barbur Boulevard and SW 26th Avenue.  This project will protect water quality in Tryon Creek.


Stormwater runoff from these roads currently drains directly to Tryon Creek and carries pollutants to the creek. The rain gardens will slow runoff, reduce erosion and allow pollutants to settle out before the stormwater enters Tryon Creek. Tryon Creek is among the few streams in the Portland metro area with a run of steelhead trout, and coho salmon have been recorded spawning in the creek.

construction site near SW 26th Ave


For construction updates, check the project page.

To learn more about Environmental Services projects to improve Tryon Creek, visit the Tryon Creek Watershed page.


Please review our Code of Conduct rules before posting a comment to this site.
Report Abuse (Please include the specific topic and comment for the fastest response/resolution.)

Add a Comment (Sign-in required)