nyoman vistula. and from 24 to 39 this facility was built. connection of lakes and existing river beds. and only 9 km of the canal was artificially dug. the dense forests were impenetrable swamps. during 3,700 workers were working simultaneously during construction. prussia, seeing that russian and polish goods were going past prussia and past and the treasury there was not replenished, sharply reduced prices went. and then the channel lost its relevance. nevertheless, it worked and worked, not in such quantities , of course, but these were internal movements of goods, it operated before the first world war and people had already begun to take notice that there were beautiful picturesque places on the canal, it was necessary to build campsites, houses on the canal, kayaking, boating, boats had already begun or was slowly developing, but the war of 1914 got in the way, very heavy fighting took place here , and all conditions for safe navigation were violated. world war ii, many airlocks were blown up. from the 1950s to 2004, the canal did not