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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

Stormwater Solutions


Underground perforated pipes collect stormwater and allow it to soak into the ground

Downspout Disconnection

Redirecting roof runoff from the sewer system

Flow-Through Planters

Flow-through planters manage stormwater in areas not suitable for infiltration

Infiltration Planters

Infiltration planters work well in space limited sites with good drainage


Storing stormwater runoff for reuse

Vegetated Swales

Gently sloping, vegetated depressions that collect and treat stormwater runoff

Roof Gardens

Heavyweight roof systems that manage stormwater

Turf Block

Turf block allows rain to infiltrate parking areas, driveways and walkways

Rain Barrels

Using rain barrels to collect roof runoff for re-use

Soakage Trenches

Shallow lined trenches treat stormwater runoff from hard surfaces

Pervious Pavers

Pervious pavers allow stormwater to soak into the ground and reduce runoff

Vegetated Infiltration Basins

Rain gardens can dramatically reduce stormwater flow rates and volume

Why Sustainable Stormwater Management Matters

Benefits of natural stormwater management systems


Managing stormwater with lightweight vegetated roof systems

Contained Planters

Contained planter boxes reduce impervious area and stormwater volume


Information about the stormwater management benefits of trees

Pervious Pavement

Pervious pavement resembles conventional paving material but allows stormwater to infiltrate