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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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Old pipes and culverts that are too small can cause water to back up or flood. More than 53 miles of Portland’s streams are in pipes and culverts.

Trees and other green infrastructure help slow and absorb stormwater, reducing flows to streams and sewer pipes.

Water always needs somewhere to go. Without proper management, stormwater can cause erosion and damage to roads, property and streams.