The Cardiff Bay Barrage

The Cardiff Bay Barrage is a large dam built across the Millennium Bay in Cardiff, Wales, designed to control water levels and transform the area into a vibrant mixed-use space. Constructed between 1997 and 2000, it allows tidal water to flow in and out, creating a freshwater lake during low tide and enabling navigation. The barrage also provides flood protection, generates renewable energy through tidal power, and includes walkways, roads, and leisure facilities for public use. Overall, it enhances flood safety, environmental quality, and urban development in Cardiff.