A massive and intricate project has been initiated to safeguard a picturesque old fishing village from the relentless sea in Mumbles, Wales. The venture, which commenced last year, is a significant investment with hopes of protecting the Mumbles community for the next century or more.
The Mumbles coast is renowned for its stunning views, including the sandy beach, calm sea, attractive promenade, and local shops. However, a stroll along the Mumbles promenade now reveals a scene of cranes, heavy machinery, and construction equipment, indicating a transformation underway. The ambitious multi-million-pound project aims to replace the deteriorating century-old seawall, suffering from visible cracks. This civil engineering endeavour aims to shield businesses, organizations, attractions, events, and numerous residences against rising sea levels attributed to climate change. The Welsh Government asserts that the new sea defenses will secure the coast for the next century.
A senior project manager for Knights Brown, Neil Chambers, explained the meticulous construction process required for the new defenses to withstand the corrosive seawater. Special reinforcements and impermeable concrete with micro silica additives have been incorporated into the design to enhance durability. The Mumbles Coastal Protection Project, spearheaded by the Welsh Government and Swansea Council, in partnership with Knights Brown, commenced in early 2023 and is anticipated to conclude in 2025. Approximately 110 workers from Knights Brown have been diligently working on the initiative.
The construction of the sea walls presents unique challenges, especially coordinating with the tides, but meticulous planning ensures the smooth running of operations. The new sea walls are engineered to be higher, pushing back seawater and fostering marine wildlife. The design accounts for projected sea levels in 2070, with provisions for emergency water inflows. The specially designed ‘wave return’ feature aims to redirect water back to the sea and prevent splashing onto the promenade.
Apart from their functional aspects, the sea walls exhibit intricate hexagonal tiles designed to encourage marine life and mimic natural rock surfaces. The construction process unearthed notable archaeological findings, including prehistoric peat beds and remnants of Victorian-era oyster vessels. The community has been apprised of the developments to minimize disruptions, with arrangements made to accommodate businesses and residents affected by the construction.
The revitalized seafront in Mumbles is set to feature a reinforced concrete wall with enhanced safety measures and additional amenities for visitors. The enhanced promenade will offer expansive spaces for various activities, with landscaped areas, play equipment, seating, lighting, and increased accessibility for all. The endeavor aligns with the Welsh Government’s commitment to assess and enhance flood and coastal erosion risk management schemes, ensuring long-term resilience against climate challenges.
Swansea Council officials and residents express their appreciation for the project’s progress, highlighting the essential protection it provides against climate-induced threats. The collaborative efforts of contractors, authorities, and the community embody a commitment to safeguarding the Mumbles community for generations to come.