1. Setback Levees: Hydraulic, Ecologic and Economic Benefits Tony Melone, PhD, PE, CFM 2011 ASFPM National Conference

2. Presentation Overview  Levee setback concepts  Multi-disciplinary approach: going beyond flood benefits  Ecosystem services: putting $$ values to environmental enhancement  Residual risk: planning for extreme events.

3. 180 th to 200 th Street Levee Setback Study

4. Soldiers Home Levee Setback Improvement Project New Setback Levee Floodplain Reconnected to River

5. Levee Setback Concepts

7. Channelized River Channel

8. Levee Setback Corridor

9. Ecosystem Services

10. Ecosystem Benefits - Wetlands Value = $36,000 per acre per year

11. Ecosystem Benefits

12. Floodplain Inundation – 14,500 cfs

13. Floodplain Inundation – 22,600 cfs

14. Flood Damage

15. Avoided Annual Damage

16. Closing Statement  Multi-disciplinary evaluation of levee options identifies the dollar value of benefits to a community:  Flood protection benefits – Avoided damage losses  Ecosystem service benefits