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Recurrent Coastal Flooding: Planning to Adapt

Recurrent Coastal Flooding: Planning to Adapt. Management/ Retreat Accommodation Protection. Levee in North Dakota Photo by Andrea Booher /FEMA. Adaptation Strategies. Elevated house in Mississippi Photo by Robert Harris /FEMA. Management . Accommodation. Elevated house in Mississippi

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Recurrent Coastal Flooding: Planning to Adapt

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  1. Recurrent Coastal Flooding:Planning to Adapt

  2. Management/ Retreat Accommodation Protection Levee in North Dakota Photo by Andrea Booher/FEMA Adaptation Strategies Elevated house in Mississippi Photo by Robert Harris/FEMA

  3. Management

  4. Accommodation Elevated house in Mississippi Photo by Robert Harris/FEMA

  5. VIMS Eastern Shore Seawater Lab FEMA Zone VE (Coastal High Hazard)

  6. Protection Photo by DAVID ILIFF. License: CC-BY-SA 3.0 Created marsh in Virginia Photo by K. Durhing

  7. Recommendations Multilayered Flood Protection Use multiple protection layers to “buy down” risk and reduce the consequences if adaptation fails

  8. Recommendations Flexible adaptation plans • Adaptable because: • Timing can be changed • Can switch between options • Structures designed to be upgraded • Land planning includes potential future uses • Considers new infrastructure planning Monitor 10 indicators: MSL, peak surge tide level, conditions of flood defense structures, developed area, intertidal habitat, etc.

  9. Carl Hershner Center for Coastal Resources Management Virginia Institute of Marine Science College of William and Mary carl@vims.edu

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