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FLOOD MANAGEMENT

FLOOD MANAGEMENT. March 9, 2006. RESPONSIBILITY AUTHORITY DISCRETION. map. What is the Problem?. Flood damage to homes and businesses Why is this happening recently? More rain When is the next big storm coming? Tomorrow or 2106? 100 year protection in rural areas?. PLANS.

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FLOOD MANAGEMENT

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  1. FLOOD MANAGEMENT March 9, 2006

  2. RESPONSIBILITY • AUTHORITY • DISCRETION

  3. map

  4. What is the Problem? • Flood damage to homes and businesses • Why is this happening recently? • More rain • When is the next big storm coming? Tomorrow or 2106? • 100 year protection in rural areas?

  5. PLANS • Flood Control Master Plan – 1998 • IRWMP - 2005

  6. SCWA Funding – Flood Mgt. • Ulatis and Green Valley - $1.1 million – dedicated property tax • Other Flood Control - $696,000 • Overall SCWA Budget $19 million

  7. SCWA Funding Authority • Pre – Prop 13: Ad Valorum tax – no vote • Pre – Prop 208: Benefit Assessments – 25% protest; majority vote

  8. Post Prop 13/208 • 2/3 vote for special taxes • Assessment district - mail ballot, benefit weighted majority vote

  9. Difficulties • Assessment District Boundaries • Cannot realistically assess upstream contributors • ACA 13

  10. Current Funding Policy • Easements required • Landowner (or others) share in capital costs • Landowner (or others) pay 100% of ongoing maintenance costs – assessment district • Not applicable for Small Project Program

  11. Flood Warning • Coordinate with County OES • Install new rain and stream gages • New telemetry • Information to public agencies and the public • Assist at EOC during big storms

  12. Ulatis Model & Vacaville Analysis • Calibrate Ulatis Model to 2002 and 2005 storms • Use model for Ulatis and Alamo Creek improvements

  13. Recommendations • Continue to Implement Flood Control Master Plan w/ Landowner cost sharing • Implement Flood Warning Program • Calibrate Ulatis Model and perform Vacaville studies • Support ACA 13?

  14. New Costs • Current FY - $253,400 • Next FY - $285,000 • Ongoing Salary and maintenance costs

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