Erosion along the Hinboun River

Theun-Hinboun Dam and Expansion Project

"[Before the dam] I used to be able to earn 100,000 kip from one hour's fishing. Now I must work hard all day for [the plantation company] to earn 20,000 kip."

Fisherman from Ban Nong Boua, along the Hinboun River, 2007.

When the Theun-Hinboun Hydropower Project in Laos was completed in 1998, the Asian Development Bank (ADB) called it a “winner” with “little for the environment lobby to criticize.” But International Rivers soon uncovered a different story. Today, the Theun-Hinboun Power Company (THPC) and the ADB admit that more than 29,000 people in 71 villages – mostly subsistence farmers – have lost fisheries, rice fields, vegetables gardens and fresh drinking water supplies as a result of the dam.

The project diverts water from the Theun to the Hai and Hinboun Rivers (see map), causing serious erosion and flooding in these river basins. Many villagers living along the Hai and Hinboun Rivers have abandoned wet-season rice fields because the floods have made rice cultivation unviable. The flooding has also caused water contamination, livestock deaths and other hardships for villagers living downstream. Alarmingly, water fluctuations have reportedly resulted in the death of several people. But THPC’s mitigation and compensation program started too late and has done too little to address these impacts, ignoring the recommendations of a review the company itself commissioned.

The Theun-Hinboun Power Company is a joint venture between the Government of Laos, Norwegian state-owned company Statkraft and GMS Power of Thailand. Although the project has made villagers poorer, it has generated windfall profits for its shareholders. Located downstream from the Nam Theun 2 Dam, Theun-Hinboun's earnings were boosted by the long delays in Nam Theun 2's implementation. To make up for the reduced water flows caused by Nam Theun 2 and to increase profits, the company built second dam on the Nam Gnouang River, a tributary of the Theun River. The additional dam – known as the Theun-Hinboun Expansion Project – has displaced 4,800 people and effectively doubles flows down the Hai and Hinboun rivers, causing more flooding, erosion, fisheries losses and resettlement. The Theun-Hinboun Power Company is moving thousands of people living downstream along the Hai and Hinboun rivers into consolidated villages located away from the rivers. Many people are concerned about where they will grow rice or fish in the future, and lack information about how they will be able to generate a livelihod in the new settlements. Their access to land is further constrained by the expansion of concessions designated for rubber tree plantations. 

International Rivers is closely monitoring the situation of affected communities, particularly those located downstream. We are working to ensure villagers who have been displaced by the Theun-Hinboun Dam and Expansion Project receive full remedial support until their livelihoods have been restored. We are also calling on THPC to establish an international monitoring system in line with the guidelines set out by the World Commission on Dams, including making a commitment to ensure the monitoring reports are publicly accessible in Lao and English languages.

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