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Group of workers in blue uniforms installing large metal panels along a roadside barrier. The scene includes a paved walkway, vehicles on the adjacent road, and green hills in the background under a clear blue sky.
Group of workers in blue uniforms installing large metal panels along a roadside barrier. The scene includes a paved walkway, vehicles on the adjacent road, and green hills in the background under a clear blue sky. © JaP Jacina Company

The purpose of the project was to provide flood protection for the city of Banská Bystrica against the Hron River.

Location: 
Banská Bystrica / Slovakia

Build time: 
2018 - 2022

Client: 
Slovenský vodohospodársky podnik, š.p. (Slovak Water Management Company)

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Flood protection of the urban area

The purpose of the project was to provide flood protection for the city of Banská Bystrica against the Hron River.

The construction works encompassed a wide range of flood protection measures designed to significantly enhance the safety and resilience of the urban area of Banská Bystrica. These measures included the modification and reinforcement of existing riverbanks and levees, the construction of new flood protection walls, as well as the supply and installation of mobile flood barrier systems that can be quickly deployed during emergency situations. A key component of the project was the construction of a floodwater pumping station, enabling the controlled discharge of internal waters during high‑water events and ensuring that the city remains protected even when river levels reach critical thresholds.

The overall flood protection system for the city was engineered to withstand a 1‑in‑100‑year flood event, aligning with modern European standards for municipal flood resilience and ensuring long‑term protection for residents, infrastructure, and local economic activities.

Scope of works

  • Construction of a mobile barrier storage facility with a total area of 2,900 m², providing fast and organised access to emergency equipment.
  • Construction of flood protection walls along a combined length of 9.1 km, forming a continuous protective barrier across key vulnerable zones.
  • Supply and installation of mobile flood barriers totalling 4.1 km, enabling flexible and rapid deployment when flood risks increase.
  • Construction of a floodwater pumping station to manage and discharge internal waters during flood events.

Completed works (key quantities)

  • Reinforced concrete piles 3,012 pcs
  • Underground sealing wall using jet grouting technology 6,332 m
  • Concrete18,250 m³
  • Construction aggregate 45,000 tons
  • Reinforcing steel 1,300 tons
  • Concrete floodgate structure with three openings and metal railings, located next to a road. The structure includes vertical control rods and mechanical equipment on top. Trees and streetlights line the background under a clear blue sky. © Peter Bohačiak / STRABAG
    Concrete floodgate structure with three openings and metal railings, located next to a road. The structure includes vertical control rods and mechanical equipment on top. Trees and streetlights line the background under a clear blue sky. © Peter Bohačiak / STRABAG
  • Straight paved road running alongside a tall concrete flood protection wall. On the left side, there is grassy terrain with power lines and poles, and a few houses in the distance. A forested hill rises on the right under a clear sky. © Peter Bohačiak / STRABAG
    Straight paved road running alongside a tall concrete flood protection wall. On the left side, there is grassy terrain with power lines and poles, and a few houses in the distance. A forested hill rises on the right under a clear sky. © Peter Bohačiak / STRABAG
  • Construction site with multiple upright concrete columns arranged in rows, forming the framework of a large structure. A crane is positioned in the center, lifting materials. The background shows hills, scattered buildings, and a partly cloudy sky with dramatic cloud patterns. © Peter Bohačiak / STRABAG
    Construction site with multiple upright concrete columns arranged in rows, forming the framework of a large structure. A crane is positioned in the center, lifting materials. The background shows hills, scattered buildings, and a partly cloudy sky with dramatic cloud patterns. © Peter Bohačiak / STRABAG