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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info

Sanitary Sewer Overflows (SSOs)


Status: No overflow advisory in effect.

Debris and other obstructions sometimes block sewer lines and can cause sewage releases. Information on current sanitary sewer overflows is posted on this page as well as our news section.

If a sanitary sewer overflows, Environmental Services issues an advisory to Portland media and places warning signs at the point of the overflow. If sewage overflows in a river or stream, Environmental Services posts warning signs at public access points downstream.

The advisory remains in effect and the signs remain in place for 48 hours after the overflow stops.