Nicholas Institute for Environmental Policy Solutions
Nature-Based Solutions Case Study

Johnson Creek Restoration, Portland, Oregon

State/Territory:

Johnson Creek in Portland Oregon faces frequent nuisance flooding events due to urbanization and development-caused degradation. The city of Portland began purchasing vulnerable properties and moving people out of the floodplain, in order to begin reconnecting Johnson Creek to its floodplain and restoring wetland habitat. This project restored 63 acres of wetland and floodplain habitat and over half a mile of the creek, creating critical habitat for the endangered Coho and Chinook salmon and steelhead trout. The project also added woody debris, and planted thousands of native trees, grasses, shrubs, and wetland plants. This restoration reduced flooding, protects infrastructure, provides recreational opportunities, and supports wildlife. 

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Habitat Types

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Built Environments

Inland Wetland Habitats

Strategies

Nature-based strategies examined in this case study.

Floodplain Reconnection

Riparian Buffer Restoration

Nontidal Wetland Restoration

Top Outcomes

Climate threat reduction, ecological benefits, or social & economic benefit goals obtained in this case. Click to search for case studies with similar outcomes.

Protect Property and Infrastructure

Provide Recreational Opportunities

Reduce Inland Flooding

Support Native Plants

Support Wildlife