A break in a critical waterway shut down a hydro-electric dam in southern Laos and raised questions about the quality of construction at the facility that sends most of the power it generates to Vietnam.
While officials said the Dec. 16 break in the Xekaman 3 facility’s penstock posed no threat to people living downstream, it marked the second breakdown in the tunnel that channels water to the power turbine, RFA’s Lao Service has learned.