Great Lakes Maritime Act of 1980

[AI summary unavailable — showing source text] Great Lakes Maritime Act of 1980 - Title I: Water Resources Project Authorization - Authorizes the Secretary of the Army, through the Chief of Engineers, to extend the navigation season on Lakes Superior, Huron, Michigan, and Erie and their interconnecting navigation channels in accordance with specified recommendations of the Corps of Engineers. Authorizes appropriations for such purpose. Directs the Secretary, in cooperation with other departments, agencies, and instrumentalities of the United States, and with State and local governments, to determine the extent of shoreline damage in the United States causally related to the regulation of the waters of Lake Superior by the International Joint Commission - United States and Canada. Requires that a report on such findings be made to Congress before September 30, 1982. Title II: Equitable Service for Foreign Trade of Great Lakes Ports - Amends the Merchant Marine Act, 1936, to direct the Secretary of Commerce to establish trade routes, services, or lines that take into account the seasonal closure of the Saint Lawrence Seaway and that provide for alternate shipping routes via a different range of ports during such closure. Title II…