Três Marias Dam, Embankment dam and hydroelectric power station in Três Marias, Brazil.
Três Marias Dam is a 2700-meter-long embankment structure crossing the São Francisco River with six turbines that produce electricity. The installation creates a large reservoir that extends for many kilometers behind the barrier.
Construction began in 1957 and took about four years, involving thousands of workers on the project. The finished structure became part of a larger development of hydropower in Brazil during that period.
The structure shaped local identity by transforming the river landscape and the communities that depend on its water. People in the region grew accustomed to living alongside a vast reservoir that controls their water supply and defines the geography around them.
The site is reachable through the town of Três Marias and offers viewing points for visitors who want to see the scale of the installation. There are areas where you can observe the structure and the water behind it clearly, though access to some parts may be restricted.
New islands formed in the reservoir after flooding, including an area that was protected to preserve nature. This protected land shows how the landscape reorganized itself after the reservoir was created.
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