Skip to Main Content View Text-Only

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

More Contact Info

Portsmouth Stormwater Project

Updated October 15, 2018

Environmental Services is in the early stages of designing a stormwater management project in the Portsmouth Neighborhood as part of an agreement with the Oregon Department of Environmental Quality (DEQ).  When it rains, stormwater carries all the pollution on the street such as bacteria, fertilizers, pesticides, oil, and dirt into the storm drains which go straight into the Columbia Slough. The goal of this project is to control this pollution and keep it from entering the Columbia Slough. 

Engineers are designing a variety of methods to capture and filter the stormwater in your neighborhood, including green streets, stormwater filter vaults, and storm filter catch basins. These improvements will filter stormwater runoff, enhance public and environmental health, and protect water quality in the Columbia Slough.

Portsmouth Stormwater Porject map

We want to hear from you!

Stop by for coffee and meet staff to talk about the proposed green streets and underground stormwater planters.

Saturday, November 3
anytime between 10am and Noon
at the tent adjacent to Northgate Park on N Fessenden St


The project is still in design and is anticipated to begin construction in spring 2019.

For More Information

Contact Debbie Caselton at 503-823-2831 or for more information regarding this project. To sign up for email updates, please email Debbie with "Portsmouth Stormwater" in the subject line.