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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

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Iron Mountain Stream Restoration

before photo at Iron Mountain


The Iron Mountain Project is located just upstream of the Iron Mountain Bridge in Tryon Creek State Natural Area. The project has several components that will improve and protect the creek, wetland, stream bank and upland habitats of this reach.

At this site, Tryon Creek had degraded in-stream habitat, an exposed sanitary sewer line ran along the creek. To address these problems, Environmental Services re-meandered the stream away from the sewer, constructed a new stream bank to protect the sewer, added habitat structures (such as large wood) for fish, and improved the wetland riparian zone for flood storage. Restoration was completed in 2008.

after photo at Iron Mountain