Wondering 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 26^th 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.

For construction updates, check the project page.

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