The ongoing debate over the sea defence scheme in Gwynedd's Barmouth resort has sparked a heated discussion, with a flood expert proposing radical alternatives that challenge the status quo. Dr. Graham Hall, a geologist with a reputation for his work in neighbouring Fairbourne, argues that the proposed solutions could lead to the loss of the entire beach in north Barmouth, a crucial tourist attraction. This beach is particularly vulnerable to storm surges and sea level rise due to its off-shore topography and ongoing sand loss.
Dr. Hall's concerns are not merely theoretical. He highlights the potential negative impacts of the proposed sea defence scheme, such as the loss of beach access and the potential for increased erosion. The rock armour revetment, for instance, could restrict beach access and do little to prevent sand loss, potentially exacerbating the issue. The secondary wall, with its 1.2km-long recurve face, is described as a "featureless concrete canyon" that could be detrimental to people's wellbeing.
In contrast, Dr. Hall proposes a series of near-shore boulder reefs, which have proven effective in encouraging beach replenishment and diminishing wave energy. These reefs, placed at the low tide mark, would cause waves to swirl behind the rocks, losing energy and depositing sediment. This strategy has been successfully implemented in other locations, such as Borth, Ceredigion, and Sea Pulling in Norfolk, where it has created shallow, sheltered bays ideal for swimming.
Another alternative suggested by Dr. Hall is the creation of a retention lake, which could become a tourist attraction like an aqua park. This solution addresses both flooding and tourism concerns, transforming a less-visited area of the town into a potential revenue generator. Additionally, raising the primary sea wall by one metre and giving it a recurved face would provide better protection without significantly altering the beach's visibility from the promenade.
However, the council has rejected some of these alternatives, citing concerns about cost, visual impact, and safety. They argue that the rock revetment, when combined with other measures, will significantly reduce the risk of flooding and loss of life. The council also emphasizes the need for better beach access and public amenities, with plans for six new sets of steps and a new walkway.
Despite the council's stance, Dr. Hall's proposals have sparked a much-needed conversation about the future of Barmouth. The debate highlights the importance of considering multiple perspectives and exploring innovative solutions to complex problems. As the planning process continues, it is crucial to weigh the potential benefits and drawbacks of each proposal to ensure a sustainable and resilient future for Barmouth.
