Bydgoszcz Canal was built in the years 1773-1774 as a part of the international waterway E 70. It connects the Vistula River and the Odra River through their tributaries: the Brda River, the Notec River and the Warta River. The establishment of Bydgoszcz Canal has contributed to the dynamic development of the city.
http://www.visitbydgoszcz.pl/en/explore/what-to-see/2364-bydgoszcz-canal