The Trung Son dam is a medium-sizedhydropower dam (260 megawatts) that was developed with theaim of achieving social and environmental sustainability.Experience gained from the Trung Son Hydropower Project canprovide relevant information for dam projects of a similarsize. This report is the result of a knowledge-sharingexercise conducted at the end of 2019 by the World Bank withTrung Son Hydropower Company Limited (TSHPCo) participation.The project benefitted from a decision-making process basedon an adaptive management principle, defined by a frameworkof measures and implementation process. Detailed activitiescan evolve if they remained consistent with this framework.Experience gained from the Trung Son Hydropower Projectdemonstrates how relocation evolved, requiring continuousnegotiations and engagement of all stakeholders to deal withunexpected problems. The critical management of downstreamimpacts during reservoir impoundment requires mitigation ofspecific risks. Assessed during the project preparationstage, downstream impacts associated with reservoirimpoundment will be minimized through maintenance of aminimum environmental flow. The Trung Son reservoir area israpidly evolving, with a newly created infrastructurenetwork bringing both opportunities and challenges. Tofurther provide support to local households and theircommunities, the scope of the corporate socialresponsibility of TSHPCo will need to be confirmed, andinteraction with the local government is likely to continueover a long period of time.
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