Water construction Drahovce – Madunice also known as Sĺňava Reservoir.
The Drahovce – Madunice Water Structure is a multipurpose water works, which uses the Váh section between Piešťany and Hlohovec, was built between 1956 – 1959. The commencement of permanent operation was in 1960.
The primary purpose of the water construction is to ensure sufficient water for the Jaslovské Bohunice nuclear power plant and water abstraction for irrigation. Secondary purposes include recreation, water sports and fishing, as well as environmental protection and enhancement.
Drahovce weir is situated on the Váh river in rkm 113.43. The total length of the gate is 132.0 m, it consists of six weir fields covered by double-segment hooks with a width of 16.0 m and a height of 7.8 m with a total capacity of 3400 m3 · s − 1
The restraint is situated on a plane and is formed by a weir and a system of two perimeter dams. The flooded water creates a maximum flooded area of 4.3 km² with a total tank volume of 12.5 mil. m3