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Resilience from coastal protection.

Lesley C Ewing1

  • 1California Coastal Commission, 45 Fremont Street, San Francisco, CA 94105, USA lewing@coastal.ca.gov.

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Summary

Coastal protection structures offer resilience against hazards. Evaluating environmental, economic, and social values enhances community safety and development, as shown by the Coastal Community Hazard Protection Resilience (CCHPR) Index.

Keywords:
CCHPR Indexcoastal communitiescoastal hazardsresilienceshore protection elements

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Area of Science:

  • Coastal engineering
  • Environmental science
  • Community resilience

Background:

  • Coastal areas face significant threats from natural hazards, necessitating robust protection measures.
  • Shoreline protection elements, including built structures and natural features, are crucial for community safety and development.
  • Existing protection strategies often focus narrowly on disaster mitigation, overlooking broader environmental, economic, and social benefits.

Purpose of the Study:

  • To discuss key aspects of shoreline protection influencing community resilience and disaster preparedness.
  • To present methods for evaluating and quantifying the economic, environmental, and social/cultural values of shore protection.
  • To introduce and demonstrate the Coastal Community Hazard Protection Resilience (CCHPR) Index for assessing resilience.

Main Methods:

  • Literature review on shoreline protection and community resilience.
  • Development of a framework for evaluating diverse values of coastal protection.
  • Application of the Coastal Community Hazard Protection Resilience (CCHPR) Index to an urban beach case study.

Main Results:

  • Shoreline protection provides multifaceted benefits beyond disaster mitigation, including environmental, economic, and social/cultural values.
  • Quantifiable metrics can be established to assess these diverse values.
  • The CCHPR Index effectively evaluates the resilience capacity of coastal communities under different protection schemes.

Conclusions:

  • Effective community resilience requires integrating diverse values into shoreline protection strategies.
  • The CCHPR Index offers a valuable tool for assessing and enhancing coastal community resilience.
  • Expanding the scope of shoreline protection evaluation to include economic, environmental, and social factors is essential for sustainable coastal development.