The Chilean tunnelling division of European contractor Strabag has been awarded a US$ 490 million contract to design and build tunnelling and civil works for the Alto Maipo Hydroelectrical Power Plant.

The four and a half year project includes detail design engineering and construction of underground and civil works of the two hydroelectric plants Alfalfal II and Las Lajas. Work will commence immediately.

The Alto Maipo Hydropower Plant is located 50 km southeast of the city of Santiago, in the high Maipo River basin of the municipal district of San José de Maipo. Once operational, the hydroelectric complex will have a total capacity of approximately 531 MW.

Alto Maipo S.p.A is a subsidiary of the Chilean-based AES Gener and the US-based AES Corporation.

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