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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

Soakage Trenches

Shallow lined trenches treat stormwater runoff from hard surfaces


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

Flow-Through Planters

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

Vegetated Swales

Gently sloping, vegetated depressions that collect and treat stormwater runoff


Storing stormwater runoff for reuse

Infiltration Planters

Infiltration planters work well in space limited sites with good drainage

Pervious Pavement

Pervious pavement resembles conventional paving material but allows stormwater to infiltrate

Turf Block

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

Vegetated Infiltration Basins

Rain gardens can dramatically reduce stormwater flow rates and volume

Downspout Disconnection

Redirecting roof runoff from the sewer system

Rain Barrels

Using rain barrels to collect roof runoff for re-use

Why Sustainable Stormwater Management Matters

Benefits of natural stormwater management systems

Roof Gardens

Heavyweight roof systems that manage stormwater

Contained Planters

Contained planter boxes reduce impervious area and stormwater volume


Information about the stormwater management benefits of trees


Managing stormwater with lightweight vegetated roof systems