• Restore capacity

    Dam dredging and cleaning restores the dams, reservoirs or lakes to their full capacities.

    Reservoir & lake dredging
  • Prevent turbine damage

    Sediments can cause severe wear damage to the turbines if they reach the level of the water outlets. Therefore dam dredging is crucial.

    Reservoir Lake Dam Dredging Landscape

Reservoir, lake & dam dredging

Reservoir, lake and dam dredging is a type of maintenance dredging, which involves silt removal. A variety of dams are constructed in rivers for different reasons. For example, they can be a part of a hydro power installation, used for agricultural purposes or for fresh water storage. Throughout the years, hydro-power dams, reservoirs and freshwater lakes retain and accumulate quantities of sandy deposits in or behind them. As a result, sediments diminish the total water reserve capacity of the plant. This is called reservoir sedimentation. If not maintained, sediments can reach the water outlets and thus, cause severe wear damage to the turbines.

Therefore, maintenance dredging (or dam sediment removal) is very important. In other words, reservoirs, lakes and dams must be dredged regularly, to restore them to their full capacities and prevent the sediments from reaching the turbines or outlets.

Sediments in lakes and reservoirs mainly consist of clay, silt and varied sizes of sand. It can also contain chemical precipitates, organic debris and often, combinations of these. We offer a variety of dredgers engineered for dam dredging and silt removal in different conditions.

Our dredgers

Most suitable for reservoir, lake & dam dredging

Auger Dredger 200 auger head

Auger ECO 200

Length over pontoons:11.5 m
Design draft:0.76 m
Auger head power:25 kW
Dredging depth (45°):9 m
Cutter Suction Dredger 300 cutter head

Cutter ECO 300

Length over pontoons:11.5 m
Design draft:0.78 m
Cutter head power:35 kW
Dredging depth (45°):6 – 8 m
Plain Suction Dredger 200 design

Plain Suction ECO 150

Length over pontoons: 9 m
Design draft:0.60 m
Dredging depth (45°):8 m

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Dredge Yard Netherlands
Weena 750
Rotterdam, Netherlands
Tel. +31 85 3035 866

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