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 São Paulo (, ; Portuguese for ' Saint Paul') is the most populous city in Brazil, and is the capital of the state of São Paulo, the most populous and wealthiest Brazilian state, located in the country's Southeast Region. Listed by the Ga ...

, Brazil. It was constructed between 1980 and 1999 for hydroelectric power production, flood control and

navigation Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, ...

. An estimated 11 million tropical trees were submerged

Technical

The dam is named for Sergio Roberto Vieira da Motta, a prominent industrial engineer in São Paulo. At in length, it is the longest dam in Brazil. The tall dam creates a reservoir with a capacity and surface area of . The dam supports hydroelectric

power plant A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an el ...

on its southern end with an installed capacity of . The power plant contains 14 x

Kaplan turbine The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to ach ...

generators. Although there are no plans to install them, the power plant has room to accommodate an additional four generators. The dam also supports a long and wide

navigation lock A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water lev ...

on its southern end with the ability to transport 27 million tons a year.

History

Construction on the dam began in 1980 and the first filling of the reservoir to above sea level was complete by 1998. It was inaugurated in 1999 with the first three generators commissioned in March. In 2000, five more generators came online and by 2001, a total of ten were in operation. The second filling to above sea level was complete in March 2001 and by October 2003, all 14 generators were in operation. The dam flooded of the

Lagoa São Paulo Reserve The Lagoa São Paulo Reserve ( pt, Reserva Lagoa São Paulo) is an ecological reserve in the state of São Paulo, Brazil. It was created in 1942, but over the years suffered considerable degradation by illegal invasions and squatters. It was large ...

and of the

Great Pontal Reserve The Great Pontal Reserve ( pt, Grande Reserva do Pontal), formally called the Pontal do Paranapanema State Reserve ( pt, Reserva Estadual Pontal do Paranapanema), is an ecological reserve is the state of São Paulo, Brazil. It was created in 1942, ...

. In compensation, the Companhia Energética de São Paulo (CESP) created the Rio Ivinhema State Park, the Rio do Peixe State Park, the Aguapeí State Park and the Cisalpina Private Natural Heritage Reserve. In 2005, an infestation of '' Hydrilla verticillata'' was discovered in the reservoir, the first time the invasive weed was discovered in Brazil. The dam has also had negative effects on downstream fish reproduction and has a long

fish ladder A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as move ...

References

Sources

* * {{DEFAULTSORT:Eng Sergio Motta Dam Dams completed in 1999 Energy infrastructure completed in 1999 Energy infrastructure completed in 2000 Energy infrastructure completed in 2001 Dams in São Paulo (state) Hydroelectric power stations in Brazil Embankment dams Dams on the Paraná River Locks of Brazil 1999 establishments in Brazil Dams with fish ladders

Technical

History

See also

References

Sources