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Hybrid Edges: A Typology of Coastal Adaptation Strategies

Kristina Hill, University of California Berkeley
Tuesday, June 17 @ 11:20am


Coastal cities around the world have begun to plan and build physical adaptation strategies for storm surges and/or sea level rise. These strategies are often quite different: some use concrete and steel barriers, some use landforms such as beaches and marshes, and others use tiered development to build urban districts that are resilient to flooding. Some are dynamic, as in the case of movable barriers and beaches that must be replenished after major storm events, while others are fixed in their spatial position and are intended to be relatively permanent. A typological organization of these strategies that uses examples from different cities can help create a set of investment choices for communities that bring multiple benefits: protection from flooding, coastal habitat areas, and resilient urban developments. Depending on a city’s local topographic conditions, wave energy regimes, and the availability of basic materials such as sand or rock, hybrids of dynamic and fixed coastal structures can provide long-term resilience to rising sea levels and more extreme rainfall events. It may be possible to delay re-development of urban districts until tiered urban design approaches are better understood, if communities use landform strategies (beaches, marshes) in the near term. New coastal districts could be produced over 50-100 years that support resilience, quality of life, and biodiversity.


Presentation Slides
81339 kb uploaded September 30, 2014 12:08pm