 In return, Britain relinquished its claim on islands in Cobscook Bay.During the 1930s, President Franklin D. Roosevelt promoted the ill-fated Quoddy Project as a tidal power project for the Cobscook Bay area as part of his New Deal through the Public Works Administration.Part of this project involved construction of a tidal barrage between Moose Island and Pleasant Point to contain the waters of Cobscook Bay, resulting in the present-day causeway carrying Maine State Route 190 and the abandoned Maine Central Railroad.