Essential Projects Small Balaton water protection system

Kis Balaton water protection system

Client: OVIBER Ltd., West-Transdanubian Environment and Water Management Directorate

(The design process is continued by the VIZITERV Consult Ltd. as a successor)

Kis-Balaton vízvédelmi rendszerThe design process of the protection system was initiated by the regional Water Management Directorate in 1979, based on the concept of the directorate developed in 1976.

The concept divided the implementation of the system into two phases. The investment program for the first phase was approved in 1981, then, after preparing the final designs, the construction was completed in 1984. The investment program for Phase II. was prepared in 1984 and was approved by the Government in 1986 on the grounds of the judgement of the National Council for Environment Protection (OKTT). The construction was started simultaneously with the design process.

The Kis-Balaton Water Protection System is aimed at reducing the nutrient load, especially the phosphorus load of the Keszthely bay in the Balaton. The protection system consists of two lakes, on which water flows through. The construction of Phase I., i.e. the Hídvégi Lake was finished in 1984; the construction of Phase II., i.e. the Fenéki Lake was started in the same year.

The Fenéki Lake contains the area of the ’Ingói berek’ (marshland), which was inundated in 1992.  The ’Ingói berek’ is located on the north-western part of the lake, its area is appr. 16 km2. After years of work and examination of several additional alternatives, the Government decided to modify the second phase of the protection system, i.e to change the regulation of waters for the rehabilitation of the ’Ingói berek’ in its Governmental Decision no. 2371/1999 (27/12).


Main works
Phase I:
  • 19 km of levee
  • 1 control structure
    (50 m
  • 2 sluices (5,8 m3/s)
  • 2 pump stations for excess waters
Phase II:
  • 59 km of levee
  • 3,3 km of channel for water level controll
  • 1 control structure
    (40 m
  • 2 sluices (~ 17 m3/s)
  • 2 structures for shipping
  • 7 pump stations for excess waters
Project leader

Márta Farkas
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