sentences:  The canal became part of the Grand Union Canal in 1929, and responsibility passed to British Waterways in 1963.Initial attempts to reopen the canal following the formation of the Grand Union Canal Society in 1967 were unsuccessful, but interest revived in 1985, and soon after a decision by the Department of Transport in 1988 to build a navigable culvert where the new Aston Clinton bypass would cross the arm, the Wendover Arm Trust was formed.The Trust split the task of reopening the canal into three phases, and phase 1 of the project, the first from the junction at Bulbourne to a winding hole near Little Tring Farm, was completed and reopened in 2005.