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Hydropower Dam Collapse in Southern Laos

By Joel Turner July 24, 2018
Carr Fire

Hundreds of people are missing and several are presumed dead after a hydropower dam collapsed in southeast Laos

A hydropower project under construction in Laos failed Monday night, releasing a catastrophic torrent of water onto the rural villages below, sweeping away homes and people in a muddy tide.

Hundreds were initially reported missing and 27 deaths have been confirmed.

Officially, nearly 7,000 people have been rendered homeless after flash flooding inundated a half dozen villages in southernmost Attapeu province near the borders with Cambodia and Vietnam. Survivors were left clinging to trees, or stranded on a handful of rooftops peaking above the floodline.

People are evacuated by boat after a dam failed in southeastern Laos

People are evacuated by boat after a dam failed in southeastern Laos.

Twenty-seven people have been killed, and 131 people have been added to an official missing persons list, according to Prime Minister Sisoulith.

People are evacuated on July 24, 2018 after a dam collapsed in Laos

People are evacuated on July 24, 2018 after a dam collapsed in Laos.

When the dam failed, millions of tons of water cascaded downstream. Photos and videos posted by state media showed villagers, some just young children, perched on rooftops to escape the flood.

The area has been declared a disaster zone, and provincial authorities have requested donations of emergency aid provisions, including food, drinking water, medicine, cash and clothing.

Emergency shelter is also urgently needed, according to the UN Office for the Coordination of Humanitarian Affairs. Schools have been repurposed to house evacuated families, but another 1,300 tents are required.

Just hours before the disaster on Monday, the Laotian, Thai and South Korean consortium behind the project warned that one of its dams was dangerously unsafe and would send walls of water surging downstream if it collapsed, VOA reports.

The structure that collapsed is reportedly one of three “earth-filled” auxiliary dams supporting the $1.02 billion Xe-Pian Xe-Namnoy hydropower project, a system of dams, reservoirs and channels.

As with dozens of other hydropower projects that impoverished and riverine Laos has okayed in its bid to become the battery of Southeast Asia, this one relied on foreign developers, and intended on exporting most of the electricity generated.

The 410 MWXe-Pian Xe-Namnoy project was slated to come online this year, with a plan to sell 90% of the power generated to Thailand.

As water released by the dam continued to surge downstream, flash flooding reached neighboring Cambodia on Wednesday.

Officials in Stung Treng Province, about 100 miles south of the Xe-Pian Xe-Namnoy project, said 25,000 Cambodians along the Sekong River required evacuation to higher ground. About half the affected families were relocated as of Wednesday night, the government reported.

With the dam overflow exacerbating already heavy monsoon rains, river levels are expected to continue to rise for several days.

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