Event archive

Event Organiser: ICE

Colwyn Bay coastal physical modelling, Abergele

  • Lecture
  • Abergele
  • 07 December 2017
  • 18:00 - 20:00
Colwyn Bay coastal physical modelling, Abergele

About this event

Conwy Borough County Council is currently regenerating the waterfront along the promenade in Colwyn Bay, North Wales. As part of the development, a beach nourishment scheme is being implemented to help protect the promenade and to reinstate the amenity beach that has been lost from the area through coastal erosion. The works are being carried out in a number of phases with a couple of major phases having already been completed.

The next phase of the works have presented a difficult challenge to the Council and their designers. The frontage immediately south of the Rhos-on-Sea breakwater to the north of the bay, runs very obliquely to the incoming waves. This has led to uncertainty in the numerical modelling that has been carried out to try and predict the beach response under a number of different scheme layouts. For this reason, a physical model of the bay and different schemes was commissioned and has been carried out at HR Wallingford.

The physical model was carried out in a specialist basin that measures 50 by 30 m at a scale of approximately 1:50. This has allowed us to model over 2.5 km of the Colwyn Bay sea-front. Several different schemes were tested including a beach recharge only scheme as well as the use of detached emergent offshore breakwaters. The presentation will include details of the Colwyn Bay Waterfront Project physical modelling works and also an introduction to the physical modelling procedure and model set-up.

Our speaker, Tom Rigden, is a scientist in the Coastal Structures Group with over 9 years’ experience of physical modelling studies having completed an MSc in Flood risk at the University of Plymouth. He has worked on and managed a number of physical modelling studies including breakwaters for ports and terminals as well as surf reefs for coastal protection.

Tom has lead HR Wallingford’s use and development of 3D laser scanning and applying digital terrain models to assess damage coefficients for physical models for breakwaters and cumulative scour impacts on beach morphology and around marine structures.

Event venue

The Kinmel Hotel and Spa
St George Road
Abergele LL22 9AS
United Kingdom

For more information please contact:

Cherry Cronly

e: Cherry.cronly@ice.org.uk