The Lai Chau dam on the river Da in northwestern Vietnam was completed on 2 May, one month ahead of schedule, project consultant AF Group announced on 16 June. An inauguration ceremony was held on 23 May by the Son La Hydro Power Project Management Board, which is managing the project on behalf of owner-operator Vietnam Electricity (EVN). The 131 m-high, 620 m-long roller compacted concrete gravity dam was built in 26 months by a consortium led by Vietnam's state-owned constructors, the Song Da Corporation, creating a reservoir with a maximum storage capacity of 1.2 × 10~9 m~3. It features a gated spillway with six bays, each 14.5 m wide and 20.5 m high.
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机译：项目顾问AF集团6月16日宣布，越南西北部Da河上的荔洲大坝已于5月2日完工，比原计划提前了一个月。 Son La水电项目管理委员会于5月23日举行了落成典礼，该委员会代表业主兼经营者越南电力公司（EVN）管理该项目。由越南国有建筑商宋大公司牵头的财团在26个月内建造了这座高131 m，长620 m的碾压混凝土重力坝，该水库的最大蓄水量为1.2×10〜9 m〜3它具有带六个隔间的门控溢洪道，每个隔间宽14.5 m，高20.5 m。
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