
Only a part of the project has been finished - under the name Gabčíkovo Dam/Waterworks. The project, involving Hungary and Czechoslovakia, was agreed on 1977 ("Budapest Treaty").
The treaty envisioned a cross-border barrage system between the towns Gabčíkovo, Czechoslovakia and Nagymaros, Hungary. But in May 1992 Hungary terminated the treaty from 1977.
Czechoslovakian government decided to switch to an alternative solution on smaller scale (known as "Variant C"). The artificial canal would be started at Čunovo, a village in Slovakia, and the Gabčíkovo power-plant would operate in run-of-the-river mode with no water level fluctuation.
The main aim was to divert part of the river into artificial canal to the hydroelectric power plant near Gabčíkovo, to provide clean source of electric power /it provides 8% of the total annual energy of the Slovak Republic/, to eliminate regular flooding and they have tried to take advantages in the damn for recreation and tourism