Great Lakes passenger steamers the lakes grew in size and number, and additional decks were built on the superstructure to allow more capacity. This inexpensive method of adding capacity was adapted from river steamboats and successfully applied to lake-going craft. The Erie Canal opened in 1825, allowing settlers from New England and New York to reach Michigan by water through Albany and Buffalo. This route opening and the incorporation of Chicago in 1837, increased Great Lakes steamboat traffic from Detroit through the straits of Mackinaw to Chicago. The screw propeller was introduced to the Great Lakes by "Vandalia" in 1842 and allowed the building
Great Lakes Charter Great Lakes Charter The Great Lakes Charter is a good-faith agreement among the Governors of the U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin, and the Premiers of the Canadian provinces of Ontario and Quebec. The charter outlines a series of principles to collectively manage the use of the Great Lakes Basin's water supply. It also includes a notice and consultation process for proposals to divert large amounts of water out of the Basin and for large in-Basin uses. It was signed on February 11, 1985. In 2001, the Great Lakes Governors and Premiers signed