Royal HaskoningDHV

Royal HaskoningDHV

Dams and Hydropowe Services


We have has designed more than 150 dams of various types ranging from arch type to concrete gravity, concrete buttress, earthfill, rockfill, masonry or combinations of these, to small low cost earthfill embankment type agricultural dams. The company has commissioned a number of large dams including buttresses up to 44m high, concrete mass gravity walls, double curvature arches reaching up to 37m in height and various earthfill and rockfill walls - as well as a large geomembrane lined dam (4-million m²) and a dam featuring some of the largest Hydroplus units in the world. Medium sized concrete masonry dams are also a speciality, as are economical masonry structures using labour-intensive construction methods.

Our expertise incorporates dams and hydropower and covers the entire life-cycle from feasibility studies, costing, detail design and specifications, contract documentation / administration and supervision to project management.

Services Offered Include:

Project management, project optimization, transient analysis, waterways designs, including intakes, screens, gates and stoplogs, penstock and steel liner designs, site supervision and manufacturing quality control

Hydrology, materials investigations, hydraulics, structural designs, seismic investigations, hydro-mechanical, electrical, dam safety investigations, dam type selection studies, dam break analyses, instrumentation, site supervision and environmental study

Some sterling projects include:

  • The 1,332MW Ingula Pumped Storage Scheme on the border of KwaZulu-Natal and the Free State (in JV with Arcus Gibb (Pty) Ltd and Knight Piesold (Pty) Ltd.
  • Shongweni Dam, which won the SAICE Award for Technical Excellence in 2003.
  • Jozini Hydro-Electric Project in KwaZulu-Natal.
  • Lucilla Poort Dam in Zimbabwe.
  • Mohale Dam in Lesotho, which won the Fulton Award for Technical Excellence in 2005.

Our engineers in South Africa and Zimbabwe are certified Approved Professional Engineers for dam safety inspections and rehabilitation.  Safety inspections have been undertaken for more than 25 impoundments - several classified as High Hazard Category III dams. 

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