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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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Help the Xerces Society and Crystal Springs Partnership rescue native freshwater mussels.


Why rescue mussels?

Freshwater mussels are the most threatened organisms in North America.  Previous surveys by Xerces have shown that Crystal Springs Creek supports large populations of native Floaters (Anodonta).  The City of Portland is working with the US Army Corps of Engineers to restore the Westmoreland Park duck pond to a more natural stream channel and planting native vegetation to help cool Crystal Springs Creek.  This restoration project can benefit native mussels in the long term, but right now, they need our help to be moved out of the areas that will be dewatered during the project, or they will not survive.

Who can help?

Volunteers must be 18 years or older and may register for one or both days. No prior experience is required. Be prepared for a day in and around the water. Closed toed shoes are a MUST! 

What will the work involve?

Volunteers will help survey for and collect native mussels.  Mussels will also be tagged, measured, and relocated out of harms way.

To register: Visit or email


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Spam Prevention In the Pacific Northwest, what state is Portland in?