Três-Marias reservoir

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Três-Marias reservoir
View of the reservoir from 2014
View of the reservoir from 2014
Location: Minas Gerais , Brazil
Tributaries: Rio Sao Francisco
Drain: Rio Sao Francisco
Larger places nearby: Três Marias
Três Marias Reservoir (Brazil)
Três-Marias reservoir
Coordinates 18 ° 15 ′ 0 ″  S , 45 ° 16 ′ 0 ″  W Coordinates: 18 ° 15 ′ 0 ″  S , 45 ° 16 ′ 0 ″  W
Data on the structure
Construction time: 1957-1961
Height above foundation level : 75 m
Crown length: 2700 m
Base width: 600 m
Power plant output: 396 MW
Data on the reservoir
Water surface 1040 km²dep1
Storage space 21,000 million m³

The Três Marias Reservoir (in Portuguese, Lago de Três Marias or Represa Três Marias ) in Brazil is one of the largest reservoirs on earth. It is located south of Três Marias, a small town in the northwest of the state of Minas Gerais on the São Francisco River . It is 276 km to Belo Horizonte , the capital of Minas Gerais, and 438 km to the Brazilian capital, Brasília .

Location and shape of the Três-Marias reservoir

Três Marias dam and reservoir

The dam was built in record time from 1957 to 1961 during the presidency of Juscelino Kubitschek . Two shifts were employed and approximately 10,000 workers were employed.

The purpose of the dam was to control floods, improve navigability , use hydropower to develop industry, and provide irrigation.

The dam is one of the largest earth dams on earth. It is a maximum of 75 m high and 2700 m long and has a base width of 600 m. The associated hydropower plant, named after Bernardo Mascarenhas, has an output of 396 MW.

The reservoir, which is also called “Fresh Sea of ​​Minas”, has a capacity of 21 billion cubic meters, a water surface of 1040 square kilometers and extends over eight municipalities.

Name origin

There are several versions of the origin of the name Três Marias.

  1. a possible reference are the three belt stars of the constellation Orion, which is visible here in every season.
  2. it could also mean the three waterfalls that used to be here at the location of the reservoir.
  3. but the most popular version refers to three sisters who lived on the right bank of the river. They were triplets, all called Maria, and were very beautiful. Unfortunately, legend has it that all three drowned in the river.

See also

Web links