Barragem de Maranhão, Hydroelectric dam in Alcórrego e Maranhão, Portugal
The Barragem de Maranhão is a concrete dam in northern Alentejo that spans the river valley and creates a large water reservoir. This installation combines a hydroelectric generator and storage lake in one structure that supports farming and power supply across surrounding areas.
The dam was built in 1957 as part of Portugal's modernization plan to boost electricity generation during the mid-twentieth century. It became an important project for expanding hydropower use in the Portalegre region.
The dam shapes how the local landscape functions and shows visitors the relationship between water management and power generation in action. You can observe how infrastructure here serves both farming and energy needs simultaneously.
Visitors can enjoy views across the water and surrounding landscape from the dam, with access usually available from local roads. Keep in mind that safety regulations apply around the facility and some areas may not be freely accessible.
The dam was built using traditional Portuguese construction methods adapted to local conditions. This approach made it a noteworthy example of how regional engineering skill was applied to large-scale infrastructure projects.
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