Barrier Island Morphology

Oral

1734 - Implications Of Consolidation On Barrier Beach Stability

Presenting Author(s)

• 

  Robert Nicholls, BSc, PhD

  Professor of Coastal Engineering
  University of Southampton

Additional Author #1(s)

• LB

  Lauren Burt, BSc, MSCc

  Graduate Coastal Engineer
  New Forest District Council

Additional Author #2(s)

• JS

  Joel Smethurst, MEng, PhD

  Associate Professor in Geotechnical Engineering
  University of Southampton

Additional Author #3(s)

• CT

  Charlotte Thompson, BSc, PhD

  Director, Channel Coastal Observatory
  Channel Coastal Observatory

This research demonstrates that consolidation can be a significant process on barrier beaches using Hurst Spit, UK as an example. Consolidation influences natural morphodynamics of natural unmanaged barriers and volumetric requirements and approach during beach nourishment. Characterising the geological and geotechnical properties of the back barrier sediments is low cost and simple. Similar investigations at other barrier beaches that provide important protection functions is prudent to assess the potential for consolidation. Rapidly retreating shingle beaches appears especially vulnerable. This could lead to guidance for coastal engineers on when and how to include consolidation in management and design.