Green River Stormwater Retrofit Estimate

Efforts

Efforts describe the goal-oriented activites of workgroups

• Knowledge Creation
  • Adaptive Management
  • Arts and Crafts
  • Lessons
  • Monitoring
  • Research
• Protection
  • Acquisition
  • Green Infrastructure
  • Regulation
• Restoration
  • Beach Nourishment
  • Engineered Log Jams
  • Fish Passage
  • Revegetation
• Social Change
  • Advocacy
  • Coordination
  • Education
  • Funding
  • Integrated Ecosystem Management
  • Legislation
  • Planning

Effort References

• RCO's PRISM Project Search
• Salmon Recovery Portal
• Ecology's Administration of Grants and Loans
• USACE Regulatory In-lieu Fee and Bank information Tracking System

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This project estimated the amount and cost of stormwater infrastructure that would be needed in the Duwamish River Watershed, or Water Resource Inventory Area (WRIA) 9, to improve stream flow and water quality to levels comparable to those found under fully forested conditions. The study accounted for existing stormwater infrastructure, anticipated population growth, and climate change impacts. Cost estimates for constructing stormwater retrofits throughout the Puget Sound basin were also derived via extrapolation of results. The project was funded by a grant from the USEPA, with match from King County, University of Washington, and the cities of Auburn, Covington, and Seatac. For more information, review the detailed

• http://www.kingcounty.gov/services/environment/watersheds/green-river/stormwater-retrofit-project.aspx

Notes

• First large scale estimate of total watershed retrofit return on investment in Western Washington.
• Wright 2013 developed initial analysis of a sub-catchment of the Newaukum Creek Watershed(https://digital.lib.washington.edu/researchworks/handle/1773/22903)