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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

Beaverton-Hillsdale Highway Water Quality Improvement Project

Updated April 12, 2019

Environmental Services completed construction earlier this year on a project around the intersection of SW Shattuck Road and Beaverton-Hillsdale Highway to improve water quality in Fanno Creek and pedestrian safety at the intersection. When it rains, stormwater now runs off Beaverton-Hillsdale Highway and flows in to underground vaults and above-ground green street planters on Beaverton-Hillsdale Highway. The vaults and planters collect and filter polluted stormwater before it flows into Fanno Creek.

BHH Project Map

Final Paving

Environmental Services is scheduled to return April 24th through 26th to do final paving in the areas where work was recently completed. This work is dependent on good weather and may need to be rescheduled.

When paving is complete, Portland’s Bureau of Transportation (PBOT) will install the appropriate striping for street crossings, bike lanes, and any turn lanes.

New Plants

Earlier this month, Environmental Services planted specially selected native plants, including native species that require minimal care and that can adapt to green street conditions. Any changes, alterations, or additions to the green street planter may disrupt the function and the growth of the plants. Please DO NOT prune or trim plants, add or replace plants without written approval, use chemical herbicides, fertilizers, or insecticides, modify or alter the function or design, add or remove soil, compost, mulch or rocks, or remove dead or dying plants.

Who is Responsible for Green Street Maintenance?

Environmental Services routinely monitors all green street planters to determine the level of work needed to maintain healthy plants and ensure that the planters’ function properly. During the first two years, the young plants are susceptible to damage. During this phase, Environmental Services contracts with professional landscapers to care for and maintain green streets. The City or professional landscaper will check to be sure the green street is functioning properly, remove sediment, clear curb openings, remove trash and debris, remove weeds, and water, trim, or remove/replace plants if necessary.  After this two-year period, Environmental Services staff will inspect each green street several times a year and provide maintenance services as needed.

How Can You Help?

If you are interested in planting and/or helping maintain a green street planter, become a Green Street Steward! By becoming a green street steward, you are helping your community and helping keep the Columbia Slough clean. Sign up at If you have questions, contact Svetlana Pell at or 503-823-8764.


Please don’t hesitate to contact Debbie Caselton with any questions at 503-823-2831 or