ICCE 2018 Cover Image

Supplementary Files

Conference Presentation File

How to Cite

Nicholls, R. J., Burt, L., Smethurst, J., & Thompson, C. (2018). IMPLICATIONS OF CONSOLIDATION ON BARRIER BEACH STABILITY. Coastal Engineering Proceedings, 1(36), sediment.67.


Barrier beaches often overlie backbarrier deposits composed of poorly consolidated sediments. Hence, they can consolidate significantly if loaded. A retreating barrier beach provides such a load. In the static situation of beach nourishment, the increased load of the raised beach volume will also cause increased consolidation. These can lower beach elevation promoting wave overtopping, overwashing and retreat. However, there is limited research concerning the role of consolidation on the stability of barrier beaches worldwide. This paper focuses on this issue using Hurst Spit on the UK south coast as a study site where consolidation is a known significant process (Nicholls, 1985; Burt et al., 2018). It is a storm beach composed of shingle (pebble and cobble) sediments and formerly retreated at 2 to 3 m/yr, Since the later 1990s it has been more stabilized by a major nourishment (Bradbury and Kidd, 1998), but continues to retreat slowly (Figure 1). A second nourishment phase is now being actively assessed following major damage in the large storm of 14 February 2014. In this context, the role of consolidation has been analyzed via new data collection, consolidation modelling and morphodynamic modelling. This paper presents these results and their implications.


Bradbury, Kidd (1998). Proceedings of the 33rd MAFF (Defra) Conference of River and Coastal Engineers.

Burt, Nicholls, Smethurst, Thompson (2018) Marine Geology, in preparation.

Nicholls (1985) Unpublished PhD Thesis, University of Southampton.

Rosati, Dean, Stone (2010). Marine Geology (271) 1-16

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.