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Canyon Flood Mitigation & Partnership Opportunities City of Wenatchee • Chelan County • Chelan-Douglas Land Trust. Canyon Drain Public Meetings & Outreach 8/5/2010 City Council Work Session 9/2/2010 City Council Work Session 9/13/2010 Board of County Commissioners Meeting
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Canyon Flood Mitigation & Partnership OpportunitiesCity of Wenatchee • Chelan County• Chelan-Douglas Land Trust
Canyon Drain Public Meetings & Outreach 8/5/2010 City Council Work Session 9/2/2010 City Council Work Session 9/13/2010 Board of County Commissioners Meeting 11/1/2010 Informative flyer sent to County residents 12/2/2010 City Council Work Session 1/25/2011 Wenatchee School Board Meeting 4/19/2011 Wenatchee School Board Meeting 5/10/2011 Mailing to City residents along canyon drainages 6/29/2011 Wenatchee School Board Meeting 7/21/2011 Board of County Commissioners Meeting
Chelan County Stormwater Program • 2011 Chelan County Stormwater Comprehensive Plan – 75% complete. • Within the vicinity of Wenatchee, the county has both open and closed conveyance systems.
Summary of Flood Hazard Reports • Canyon No. 1 and No. 2 pose the highest risk of potential mud flows. • Risk factors • high hill slope gradient • high rainfall intensity • lack of vegetation • land-use practices • Debris, mud & sediment = System Failure
Conceptual layout of Water Quality/Flood Management Structures Proposed #1 Western Hills Stormwater Facility – City Proposed #1 Canyon Water Quality Facility –County
How Did We Get Here? • The CDLT coordinated a site visit with the city, and county to a potential joint use facility parcel (May 2011). • As a result, C.C. conducted a feasibility study of the site (July 2011). • City/county interface • Water quality improvement • Debris control now. Potential future flow control.
Joint Use Facilities… • Combined flood mitigation and water quality improvements with recreational facilities for schools, trailheads, and neighborhood parks.
Foothills Plan • Improved trailheads
Next Steps • Launch public outreach to explore joint use facility projects. • Pursue funding opportunities. • Follow-up with the Wenatchee School District on the Western Hills Facility. • Continue exploring partnership possibilities.