The report examines the causes and impacts of the flooding and outlines recommendations to improve flood risk management in the area.
During two storms on December 30, 2023 and January 2, 2024, approximately 34 properties in Llansteffan were affected by flooding to varying degrees.
While the recorded rainfall levels—19mm and 32mm respectively—were not exceptional, they followed an unusually prolonged wet period, making ground conditions highly saturated. This contributed to increased surface water runoff, which overwhelmed local watercourses.
The flooding was further exacerbated by the burial of a key outfall under the beach, preventing effective drainage between the two storms.
To understand the events and impacts, three stakeholder engagement sessions were held in April 2024, allowing affected residents to share their experiences.
The investigation also reviewed the response efforts of key agencies, including Carmarthenshire County Council, Natural Resources Wales, Dŵr Cymru Welsh Water, and Mid and West Wales Fire and Rescue Service.
The report concludes with a series of actions aimed at improving flood risk management, enhancing community resilience, and reviewing maintenance and operational activities.
Cabinet Member for Transport, Waste and Infrastructure Services - Cllr Edward Thomas said: “Over a year has passed since this event in Llansteffan, however my thoughts are with those within the local community that were affected by the flooding and are still impacted by its devastating effect.
“Carmarthenshire County Council welcomes the publishing of the Flood Investigation Report and we will oversee the implementation of these recommendations through a multi-agency project group, which we will continue to chair in the short term. The Council remains committed to working closely with all relevant authorities and the local community to help mitigate future flood risks and enhance preparedness.”
The full Llansteffan Flood Investigation Report is available on the Carmarthenshire County Council website.
Carmarthenshire County Council will be hosting a public meeting in the spring to engage with residents on the findings of the investigation report. A time, date and location will be communicated during the coming weeks.