Construction of a new drinking water reservoir in Mauritius has taken a step closer to completion following the finish of Bauer’s work on constructing the cut off wall.
Bauer has said that it completed the work on the 2.4km-long diaphragm cut-off wall for main contractor China International Water & Electric Corp on the Bagatelle Dam Project a year to the day after it started.
The 56,781m2 wall is socketed into basalt rock. According to Bauer, the basalt at the project site is very hard but around 20,000m2 of weathered material had to be penetrated by the wall for the new dam. In addition, Bauer also had to excavated up to 28m depth of basalt in the central area of the dam in order to construct the cut-off wall to the required depth.
Completion of the dam will mark a significant change in water supply in Mauritius where, although there is a high annual rainfall, the country lacked any major water storage facilities. The earth embankment dam is due to be completed in 2017 and will eventually impound 16M.m3 of water.