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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

More Contact Info

Stormwater Solutions

Pervious Pavers

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

Turf Block

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

Downspout Disconnection

Redirecting roof runoff from the sewer system


Managing stormwater with lightweight vegetated roof systems


Storing stormwater runoff for reuse


Information about the stormwater management benefits of trees

Pervious Pavement

Pervious pavement resembles conventional paving material but allows stormwater to infiltrate


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

Infiltration Planters

Infiltration planters work well in space limited sites with good drainage

Rain Barrels

Using rain barrels to collect roof runoff for re-use

Vegetated Swales

Gently sloping, vegetated depressions that collect and treat stormwater runoff

Contained Planters

Contained planter boxes reduce impervious area and stormwater volume

Flow-Through Planters

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

Roof Gardens

Heavyweight roof systems that manage stormwater

Soakage Trenches

Shallow lined trenches treat stormwater runoff from hard surfaces

Vegetated Infiltration Basins

Rain gardens can dramatically reduce stormwater flow rates and volume

Why Sustainable Stormwater Management Matters

Benefits of natural stormwater management systems