Ribeiradio and Ermida Dams

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The Ribeiradio and Ermida project consists of the accesses to the Ribeiradio Dam and the re-establishment of the EM 569 highway on the River Vouga near Aveiro, some fifty kilometres north of Coimbra in Portugal.The "Aproveitamento Hidroelectrico Ribeiradio–Ermida " is an EDP (Electricidad de Portugal) project consisting of the execution of two hydraulic jumps, with eight-kilometre spacing, the Ribeiradio and Ermida Dams. The objective of this hydroelectric operation is essentially the generation of hydroelectric power, although it is also intended for flood abatement and water storage.The works are divided into three parts: The Ribeiradio and Ermida Dams and their accesses.The Ribeiradio Dam has a gravity profile with an arc-shaped wall of 240 meters in radius and has a height of 78 meters. It also includes the power station accesses (1.6 kilometres) and those to the Observation and Control building (POC).The Ermida dam has a height of 35 meters and is 175 meters in long. It includes the accesses to the power station and the right bank from the EM-569 highway.Accesses to the Ribeiradio Dam and the re-establishment of the EM 569 highway: The Ribeiradio Dam accesses are 1 kilometre long on the right bank and 1.2 kilometres on the left bank, with a mean slope of 10%.The re-establishment of the EM 569 highway on the right bank of the Ermida Dam is approximately 2.35 kilometres. It includes the construction of a bridge over the River Salgueira.

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