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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

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

Projects

Mason Flats Wetland Enhancement Project

Construction completed in spring 2013

Columbia Slough Confluence Habitat Enhancement Project

Restoration at the Willamette River - Columbia Slough confluence

Big Four Corners Land Acquisition

Protection and restoration of Portland's fourth largest natural area

Columbia Slough Watershed Council

Learn about the Council's activities in the Columbia Slough watershed.

Clean Rivers Education

Learn about Environmental Services education programs.

Watershed Revegetation Program

Read about Portland's program to remove invasive, non-native plants and restore native vegetation.

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.