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,
Teltow Canal Berlin's eastern suburbs. The Dahme provides a link to the Oder-Spree Canal, and hence to the River Oder and Poland. Whilst the Dahme is a tributary of the River Spree, itself a navigable tributary of the Havel, the Teltow Canal offers the advantage of bypassing the centre of Berlin, with its heavy river traffic. At its western end, the Teltow Canal incorporates the Griebnitzsee lake which links to the Havel in Potsdam. The Griebnitz Canal provides a second link to the Havel from the eastern end of the Griebnitzsee. Towards its eastern end, the Teltow Canal is linked to the