Eng Souza Dias Dam
Encyclopedia
The Engineer Souza Dias Dam, formerly known as the Jupiá Dam is an embankment dam
Embankment dam
An embankment dam is a massive artificial water barrier. It is typically created by the emplacement and compaction of a complex semi-plastic mound of various compositions of soil, sand, clay and/or rock. It has a semi-permanent waterproof natural covering for its surface, and a dense, waterproof...

 on the Paraná River
Paraná River
The Paraná River is a river in south Central South America, running through Brazil, Paraguay and Argentina for some . It is second in length only to the Amazon River among South American rivers. The name Paraná is an abbreviation of the phrase "para rehe onáva", which comes from the Tupi language...

 near Três Lagoas in São Paulo
São Paulo
São Paulo is the largest city in Brazil, the largest city in the southern hemisphere and South America, and the world's seventh largest city by population. The metropolis is anchor to the São Paulo metropolitan area, ranked as the second-most populous metropolitan area in the Americas and among...

, Brazil. It was constructed for hydroelectric power production, flood control
Flood control
In communications, flood control is a feature of many communication protocols designed to prevent overwhelming of a destination receiver. Such controls can be implemented either in software or in hardware, and will often request that the message be resent after the receiver has finished...

 and navigation
Navigability
A body of water, such as a river, canal or lake, is navigable if it is deep, wide and slow enough for a vessel to pass. Preferably there are few obstructions such as rocks or trees to avoid. Bridges must have sufficient clearance. High water speed may make a channel unnavigable. Waters may be...

. Studies on the dam and power plant began in 1951 which recommended the dam along with the Ilha Solteira Dam
Ilha Solteira Dam
The Ilha Solteira Dam is an embankment dam on the Paraná River near Ilha Solteira in São Paulo, Brazil. It was constructed between 1967 and 1973 for hydroelectric power production, flood control and navigation....

. The dam was inaugurated in 1968 and its generators were commissioned between 1969 and 1974.

Dam and reservoir

The Souza Dias Dam is a 53 m (173.9 ft) high and 5495 m (18,028.2 ft) long combination concrete gravity and embankment dam. The concrete power plant, navigation lock and spillway
Spillway
A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed. In the UK they may be known as overflow channels. Spillways release floods so that the water does not overtop and damage or even destroy...

 section section of the dam measures 1040 m (3,412.1 ft) long while the earth-fill embankments flanking the concrete section measure 2070 m (6,791.3 ft) long on the right and 2385 m (7,824.8 ft) long on the left. The reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 created by the dam has a 3.353 km³ (0.804427479600173 cu mi) capacity of which 900000000 cubic metre is live (active or "useful") storage. The reservoir has a catchment area of 470000 square kilometre and surface area of 330 square kilometre as well. The dam's spillway contains 37 floodgate
Floodgate
Floodgates are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to adjust flow rates in sluices and canals, or they may be designed to stop water flow entirely as part of a levee or...

s, each with a 1208 m3/s discharge capacity for a total discharge of 44696 m3/s. The average long-term flow at the dam is 6350 m3/s and the record maximum flow was 28943 m3/s which was reached on October 2, 1983.

The dam's navigation lock is 210 m (689 ft) long, 17 m (55.8 ft) wide and affords transportation on the Paraná and Tietê River
Tietê River
The Tietê River is a Brazilian river in the state of São Paulo.The source is in Salesópolis in the Serra do Mar, at 1,120 m altitude...

s. It was inaugurated January 1998.

Power station

The dam's power station contains 14 x 110.8 MW generators
Electrical generator
In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...

 that are powered by Kaplan turbine
Kaplan turbine
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by the Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and...

s for a total installed capacity of 1,551.2 MW. In addition, the power station contains two 5 MW service generators for powering the dam's facilities itself. Together, dam's generators are designed to discharge 6440 m3/s of water, bringing the total discharge capability of the dam to 50130 m3/s at a reservoir elevation of 280.5 m (920.3 ft) above sea level.

See also

  • Energy policy of Brazil
    Energy policy of Brazil
    Brazil is the 10th largest energy consumer in the world and the largest in South America. At the same time, it is an important oil and gas producer in the region and the world's second largest ethanol fuel producer....

  • Itaipu Dam
  • Ilha Solteira Dam
    Ilha Solteira Dam
    The Ilha Solteira Dam is an embankment dam on the Paraná River near Ilha Solteira in São Paulo, Brazil. It was constructed between 1967 and 1973 for hydroelectric power production, flood control and navigation....

  • Eng Sérgio Motta (Porto Primavera) Dam
    Eng Sérgio Motta Dam
    The Engineer Sérgio Motta Dam, formerly known as the Porto Primavera Dam, is an embankment dam on the Paraná River near Rosana in São Paulo, Brazil. It was constructed between 1980 and 1999 for hydroelectric power production, flood control and navigation. The dam is named for Sergio Roberto Vieira...

  • List of power stations in Brazil
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