History of the Hudson River hundred years, various groups had sought to have a canal built between the Great Lakes and the Hudson River. This would link the frontier region of the United States to the Port of New York, a significant seaport during that time period as it is today. Construction of the canal began in 1817 and finished in 1825. Originally called "Clinton's Ditch", after NY Governor DeWitt Clinton, the canal proved to be a success, returning revenues of over $121 million after an initial construction cost of only $7 million. After the canal was built, freight could travel from many frontier cities,
Asian carp introduced. The United States Environmental Protection Agency is also concerned about the possibility of Asian carp migrating to the Great Lakes. In 2002, the U.S. Army Corps of Engineers completed an electric fish barrier in the Chicago Sanitary and Ship Canal, the only navigable aquatic link between the Great Lakes and the Mississippi River drainage basins. The initial fish barrier was used as a demonstration project to study the design's effectiveness. Following positive results, construction began on a second, permanent barrier in 2004. In addition to the canal, the corps has identified 19 sites in five additional states, from Minnesota