Alto Tâmega Dam (Portuguese: Barragem do Alto Tâmega) is a concrete double curvature arch dam on the Tâmega River. It is located in the municipalities of Ribeira de Pena and Vila Pouca de Aguiar, in Vila Real District, Portugal.

Alto Tâmega Dam
Location of Alto Tâmega Dam in Portugal
Official name	Barragem do Alto Tâmega
Country	Portugal
Location	municipalities Ribeira de Pena and Vila Pouca de Aguiar, Vila Real District
Coordinates	41°34′28.7″N 7°43′52″W
Purpose	Power
Status	Under construction
Opening date	2024
Dam and spillways
Type of dam	Concrete double curvature arch dam
Impounds	Tâmega River
Height	106 m (348 ft)
Length	334 m (1,096 ft)
Installed capacity	160 MW (210,000 hp)
Annual generation	139 GWh

It is part of the wider Tâmega Electricity-Generating Group formed of 3 dams and 3 plants[1]

Iberdrola signed a 70-year concession with the Government of Portugal in July 2014 for the design, construction and operation of three projects: Alto Tâmega, Daivões and Gouvães dams.[2]

Construction of the dam will be completed in 2024.[3]

Dam

Alto Tâmega Dam is a 106.5 m tall and 334 long double-curvature concrete.[4]

Reservoir

The reservoir surface area for the dam has 7.4 km².[4]

Power plant

The generating unit of the dam consists of two 80MW turbine units with a maximum flow rate of 200m³/s producing 139GWh of electricity a year. The dam contains two lateral spillways with combined discharge capacity of 1,825m³/s, which protect the dam from over-topping.[4]

See also

• List of power stations in Portugal
• List of dams and reservoirs in Portugal

References

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