Erie Canal Bicentennial Commemorative Coin Act This bill directs the Department of the Treasury to mint and issue 50,000 $5 gold coins, 400,000 $1 silver coins, and 750,000 half-dollar clad coins in recognition of the bicentennial of the Erie Canal. The designs of the coins must be emblematic of the Erie Canal and its impact on the development of the United States and New York. All sales of coins issued under this bill must include a surcharge to be paid to the Erie Canalway Heritage Fund, Inc., to support the historic preservation and community development of the Erie Canalway National Heritage Corridor in New York and for educational and commemorative programs.