Plan WRIA8 Salmon Recovery Council September 18, 2014 John Engel, - PowerPoint PPT Presentation

Cedar River Corridor Plan WRIA8 Salmon Recovery Council September 18, 2014 John Engel, P.E. Supervising Engineer Nancy Faegenburg, Project Manager Cedar River

Today’s Presentation  Overview of Cedar Corridor Plan  Goals and desired outcomes  Stakeholder involvement process  Scope and Timeline for project

Cedar River Watershed Study Area: Landsburg to Lake Washington 22 River Miles

Flooding, Damages, Repairs Renton Airport/ Boeing Nov 1990 Renton Feb. 1996 Byers Bend, Jan. 2009 Belmondo Post 2009 Flood Belmondo post mitigation repair Emergency Repairs 2013

Why do a Corridor Plan? Multi-objective River and Floodplain Management  Detailed look at the floodplain, the risks and opportunities, alternatives development and communication with the public and stakeholders.  Clearly defined vision/ outcomes  Prioritized capital project list.  Evaluates public safety in project and strategy for implementation  Flood project mitigation integrated with salmon recovery plans

Improvements in Available Data 2001 Air Photo 2000 Hillshade Model 2001 Elevation Model 100 year FEMA 2013 Air Photo 2013 Hillshade Model 2013 Elevation Model 2014 Inundation Model

Examples of Detailed Flood Risk Information Channel Migration Mapping – under development Inundation depths based on Lidar and HEC- RAS model LIDAR Data showing detailed topography

Active Channel Migration – History Belmondo Reach Groundwork for Process Based Restoration

Plan Development  Existing Conditions Characterization  Problem Identification and Prioritization  Identify Opportunities and Potential Solutions  Evaluate, Prioritize and Sequence  End Products:  Clearly defined outcomes for the corridor  List of Recommended CIP’s to achieve outcomes  Conceptual Designs and Cost Estimates  Other Programmatic Actions to achieve outcomes

Project Funding, Partners & Participants  KC FCD, Lead Agency, project funding  Consultant team – technical and outreach assistance  KC WRIA and Science Staff  Partner Agencies (Cities and Tribes)  Advisory Committee  Community  City of Renton SRF Board grant – input to Corr. Plan.

Advisory Committee Recommendations:  Cities: Renton, Seattle  Muckleshoot Indian Tribe  Neighborhood Residents  River Safety Council and other recreational interests  WRIA 8, Cedar River Council  Industry: Boeing  Non-profits: Friends of the Cedar River, Forterra  Agencies:  Corps, WDFW, Ecology ,NOAA Fisheries, WDOT  County Parks

Timeline and Opportunities for Input  Preliminary Outreach to Partners and Community (Spring-Summer 2014)  Consultant (August 2014)  $550-600K  Advisory Committee (kick-off in Sept 2014)  Public Meetings (Fall 2014, Spring/Summer 2015, Fall 2015)  Plan Completed (December 2015)  FCD review and adoption (1Q 2016)  Project Selection and Implementation (2016)

Summary of Outcomes  Goal is to produce a comprehensive plan with a clear vision for long term flood protection.  Integrates multiple objectives  Prioritized set of CIP’s  Developed with input from an Advisory Committee

Rainbow Bend Successful flood damage reduction and river restoration, King County Team with City of Seattle 1990 Flood

Early 2013

October 2013

Sockeye in new channel

Contact Information: John Engel, P.E., Supervising Engineer Nancy Faegenburg, Project Manager Water and Lands Resources Division Rivers and Floodplain Management Section – Cedar River 206 477-4685 john.engel@kingcounty.gov 206 477-4688 nancy.faegenburg@kingcounty.gov