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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

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Beaver at work in Tryon Creek


We thought you might like this beaver dam photo from an earlier, slightly warmer day this fall.  (Don't worry, our field crews are looking a little more bundled up this week.)

scientists at beaver dam in Tryon Creek  beaver dam from downstream

In September, we shared a story about lamprey in Tryon Creek.  On that same visit, Environmental Services staff discovered this brand new beaver dam in the creek.  This new work of natural art and engineering is between the Tryon Creek confluence with the Willamette River and Highway 43.

Learn more about why it’s good to see beaver activity in Portland’s streams in stories from Johnson Creek and Stephens Creek.

Check out this PBS documentary, Leave it to Beavers.  


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