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

Southern Flow Corridor

State/Territory:

The Southern Flow Corridor project works to relieve more than 1,214 hectares of community from regular flooding and reconnect more than 65 hectares of Tillamook Bay’s salmon-bearing habitat to streams. This project converted retired dairy land into wetlands by removing a levee system. This restored 179 hectares of habitat and opened new tidal channels. The removal of the levee system reduced flooding on 1200 hectares of land, saving $9.2 million on flood recovery costs over the next 50 years. The restoration of salmon habitat contributes to the region’s fishing industry and cultural values.  

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Habitat Types

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Coastal Habitats

Inland Wetland Habitats

Riverine Habitats

Strategies

Nature-based strategies examined in this case study.

Riverine Connectivity Restoration

Floodplain Reconnection

Coastal Marsh 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

Reduce Coastal Flooding

Reduce or Avoid Costs

Support Resilient Fisheries

Support Wildlife

Sourcing

Case study originally found at: https://issuu.com/poweroferdc/docs/erdc-sr-21-2_ebook/s/12099868