Claerwen Dam




The Claerwen reservoir and dam in Powys, Wales, were the last additions to the Elan Valley Reservoirs system built to provide water for the increasingly demanding city of Birmingham. [1]
The construction of the Claerwen dam, instead of the three dams originally proposed, was commenced in 1946 and completed in 1952. The water impounded formed a reservoir about 4 miles long with a capacity of 10,625 million gallons. Approximately 9.5 miles of road were also provided as access up the Claerwen Valley.[2]