 A report suggested that the best solution would be the incorporation of those areas into an Internal Drainage Board, and the Commissioners therefore applied to the River Board to enlarge their District by the addition of which included parts of Sedge Fen, Decoy Fen and Redmere.The expansion was ratified by the Great Ouse River Board (Burnt Fen Internal Drainage District) Order, which was passed in 1962.It revoked all of the Burnt Fen Acts, and after 203 years, the Commissioners ceased to exist, being replaced by an elected board of 20 members.