5.7.13 Introduction to the Iowa Flood Center Dr Weber

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5.7.13 Introduction to the Iowa Flood Center Dr Weber

  1. 1. www.iowafloodcenter. In response to extreme flooding in 2008, the state legislature established the Iowa Flood Center at the University of Iowa to serve as a technical resource for Iowans
  2. 2. A user-friendly, one-stop web platform, designed to allow access to:  Community-based flood conditions  Forecasts  Inundation maps  Flood-related data, information, and applications
  3. 3. Four Distinct Projects  Agricultural Drainage Study (UI + ISU)  Iowa Watersheds Project (UI)  Watershed Management Authorities (IaDNR)  Education and Outreach (IaDNR + ISU Extension) Background  Originated from 2008 disaster funding  Conceptualized with the Rebuild Iowa Office  Must be used to benefit the 85 Presidential Disaster Declared counties  Addressed needs identified in the 2010 legislative session
  4. 4. Overview:  To plan, implement, and evaluate watershed projects to lessen the severity and frequency of flooding in Iowa Specific Project Goals:  Maximize soil water holding capacity from heavy precipitation  Minimize severe scour erosion and sand deposition during floods  Manage water runoff in uplands under saturated soil moisture conditions  Reduce and mitigate structural and nonstructural flood damages
  5. 5.  Hydrologic model development  Identify areas in subwatersheds for project construction Phase I: Hydrologic Assessment  Engage landowners to construct projects in subwatersheds  Projects may include: Active and passive distributed storage, Floodplain restoration or easements, Buffer strip installation and enhancement, Advanced tile drainage  Monitor impact of constructed projects and evaluate feasibility at a larger scale Phase II: Project Construction & Implementation Engagement of Watershed Management Authority and private land owners will be vital to project success
  6. 6.  1986 – Formation of Soap Creek Watershed Board – 28E  1988 – Study identifies 154 project locations to reduce flooding  2012 – 132 watershed projects complete
  7. 7. Watershed Area 250 mi2 160,000 acres Area Controlled 5 mi2 2,889 acres Area controlled in 1993: 2%
  8. 8. Watershed Area 250 mi2 160,000 acres Area Controlled 25 mi2 15,911 acres Area controlled in 1999: 10%
  9. 9. Watershed Area 250 mi2 160,000 acres Area Controlled 38 mi2 24,460 acres Area controlled in 2005: 15%
  10. 10. Watershed Area 250 mi2 160,000 acres Area Controlled 47 mi2 30,129 acres Area controlled in 2008: 19%
  11. 11. Watershed Area 250 mi2 160,000 acres Area Controlled 60 mi2 38,100 acres Area controlled in 2012: 24%
  12. 12. 74% Reduction 48% Reduction 43% Reduction 47% Reduction 43% Reduction 18% Reduction

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