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The River, the Levies, and the Future of New Orleans

The River, the Levies, and the Future of New Orleans. Ken Tabbutt April 14, 2006. Reconstructing New Orleans: Class, Race and the Ownership Society. Natural Earth Cycles. James Hutton (1726 – 1797). National Galleries of Scotland. “The Present is the Key to the Past”.

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The River, the Levies, and the Future of New Orleans

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  1. The River, the Levies, and the Future of New Orleans Ken Tabbutt April 14, 2006 Reconstructing New Orleans: Class, Race and the Ownership Society

  2. Natural Earth Cycles

  3. James Hutton (1726 – 1797) National Galleries of Scotland “The Present is the Key to the Past”

  4. Natural Geologic (and Atmospheric) Processes • Earthquakes • Tsunami • Volcanic Eruptions • Floods • Hurricanes • Sedimentation • Subsidence and Uplift • Meteorite Impacts • Climate Change Shake Map of Nisqually Earthquake 2/01

  5. Flood Events (Rivers) United States Geologic Survey

  6. HydrographMississippi River, Baton Rouge United States Geologic Survey

  7. Discharge Rating Curve Fetter, C. W., 1994, Applied Hydrogeology: Prentice Hall.

  8. HydrographMississippi River, Baton Rouge United States Geologic Survey

  9. Discharge Exceedance Probability

  10. Flooding

  11. Natural Disasters or Hazards

  12. River Flooding Hazard

  13. Lower Mississippi RiverCairo, Illinois - Mouth

  14. New Orleans

  15. Natural (and unnatural) Processes • Subsidence • Flooding • Hurricanes • Sea Level • Rise Image obtained from NASA

  16. Natural (and unnatural) Processes • Subsidence • Flooding • Hurricanes • Sea Level • Rise Image obtained from NASA

  17. Subsidence • Natural gradual subsidence of the Gulf Coast Basin and the Mississippi delta sediments (compaction and tectonic) • Resource extraction (gasand oil) • Lack of sediment supply

  18. Natural (and unnatural) Processes • Subsidence • Flooding • Hurricanes • Sea Level • Rise Image obtained from NASA

  19. Flooding

  20. New Orleans Levees

  21. Natural (and unnatural) Processes • Subsidence • Flooding • Hurricanes • Sea Level • Rise Image obtained from NASA

  22. Hurricane Katrina

  23. Natural (and unnatural) Processes • Subsidence • Flooding • Hurricanes • Sea Level • Rise Image obtained from NASA

  24. Sea Level Rise

  25. Sea Water Temperature

  26. Mitigation New Orleans, Louisiana FEMA floodmap

  27. Mitigation • Engineered Solutions • Flood Control • Channelization • Floodproofing • Social Solutions • Remove Structures • Zoning • Warning Systems • Flood Insurance (spread the cost)

  28. Society must understand the spatial and temporal impact of these processes in order to avoid potential hazards. • We must weigh the long-term costs associated with these natural cycles. • We must understand how anthropogenic practices can change the spatial and temporal nature of these cycles. • We must understand they are dynamic systems.

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