|The Xe Bang Fai river in Laos started to break its banks over the last two weeks in some areas, causing testing to stop for the Nam Theun 2 project.|
The rainy season in Laos is well advanced now, and the Province of Khammouane, where most of the Nam Theun 2 Hydroelectric Project (NT2) is located, has been hard hit over the last two weeks. Just over a week ago there was 225mm of rain over central Khammouane in one night, leading to floods in several places around the province – including the provincial capital of Thakek. Apparently there were places in Thakek up to a meter deep in water for a while: a combination of heavy rain and blocked drains, according to a local official. Those of us who were in Lao’s capital Vientiane during last year’s floods will vividly remember this.
As a result of this heavy rain, the Xe Bang Fai River, which drains a significant part of Khammouane, started to break its banks over the last week in some areas. The Xe Bang Fai is very significant to the NT2 as it is the river that will receive the water discharged from the hydropower facility when it is operating. The incremental impacts of NT2 water on the regular flood cycle of the Xe Bang Fai river has always been a concern for the project, and was studied extensively.