Drilling in remote and dificult access locations: Lesotho LHDA dam geotechnical investigations - Oxbow and Senqu

The Oxbow site, managed by Espee Van Huyssteen, was an investigation for the potential dam site on the Malibamatso River, quarries for construction materials and the pipeline to the ‘Muela dam. Using three YWE D90 drill rigs, Geomechanics drilled 18 boreholes up to 75m deep including Lugeon testing.

The Senqu B site, managed by Dean MacDonald, was an investigation for a potential dam site on the Senqu river near the village of Tsoelike in the Qachas Nek area. Using three WYE D90 rigs, Geomechanics drilled 23 boreholes up to 100m deep including Lugeon and falling head testing.

To read more about the challenges of working in such remote and steep locations click here