Jirau and Santo Antonio Dams on Madeira River, Brazil

The two mega hydroelectic power plants, fueled by the Jipau and Santo Antonio dams on the Madeira River are to be completed by 2015, despite local opposition violation of human rights. In Jan 2016, Nilce de Souza Magalhães of MAB was assassinated.


Among the IIRSA projects approved in 2000- Initiative for the Integration of South American Regional Infrastructure -, there was the construction of two dams on the Madeira River, the biggest tributary of the Amazon River. The communities of Jirau and Santo Antonio, where the dams would be built, launched the Viva Rio Madeira Vivo campaign and oppose the megaprojects that would flood their territories and destroy the areas ecosystem. According to International Rivers Network, the Madeira River is the Amazons largest and most important tributary. Spanning about a quarter of the Brazilian Amazon, the Madeira Basin is a treasure trove of biodiversity, providing home to the spotted jaguar, giant otter, pink dolphin, and countless other endangered mammal species. The river teems with life – an estimated 750 fish species migrate some 4,500 km each year to spawn and feed in the nutrient-rich, muddy waters of the upper Madeira. But all this is under threat. The Brazilian government is building two massive hydroelectric dams on the Madeira. Construction of these projects–plus two additional dams upstream–would transform the Madeira into an industrial shipping canal, providing the power and transport needed to move large quantities of resources out of the Amazon—and accelerate its destruction. The project is the largest of the IIRSA.

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Basic Data
NameJirau and Santo Antonio Dams on Madeira River, Brazil
SiteMadeira River
Accuracy of LocationHIGH local level
Source of Conflict
Type of Conflict (1st level)Water Management
Type of Conflict (2nd level)Dams and water distribution conflicts
Land acquisition conflicts
Climate change related conflicts (glaciers and small islands)
Specific CommoditiesWater
Project Details and Actors
Project DetailsSanto Antonio Dam: The dam itself will be 13.9 m (46 ft) tall and 3,100 m (10,171 ft) long, creating a reservoir with a surface area of 271 km2 (105 sq mi) (164 km2 (63 sq mi) of which is the existing river channel). The dams power plant is divided into four sets of Kaplane-bulb turbines for a total of 44, each at 71.6 MW, for a total installed capacity of 3,150.4 MW.

Jirau Dam: The length of the entire dam will be 1,100 m (3,609 ft) while the embankment section will be 800 m (2,625 ft). The embankment dam will be arched, 63 m (207 ft) tall and will have an asphalt-core. Its structural volume will be 2,000,000 m3 (70,629,333 cu ft) of which 17,000 m3 (600,349 cu ft) will be asphalt. The dams spillway will consist of 21 gates and will have a maximum discharge of 82,000 m3/s (2,895,803 cu ft/s). The Santo Antonio dam power station will have a generating capacity of 3,150 MW and Jirau dam power station a capacity of 3,750 MW, both costing in total nearly US$15 billion.
Level of Investment (in USD)15,600,000,000
Type of PopulationRural
Start Date01/2006
Company Names or State EnterprisesOdebrecht Energy Luxembourg (Odebrecht) from Brazil
ANEEL from Brazil
GDF Suez (GDF Suez) from France
Eletrobras from Brazil
Energia Sustentável do Brasil from Brazil
Relevant government actorsBrazilian government, FUNAI (governement's indigenous affairs department), Brazil’s Economic and Social Development Bank, BNDES
International and Financial InstitutionsInter-American Development Bank (IADB)
River Plate basin development fund - Fondo Financiero para el Desarrollo de la Cuenca del Plata
Banco Santander (Santander) from Spain
Inter-American Commission on Human Rights
Banco Nacional de Desenvolvimento Econômico e Social (BNDES) from Brazil
Environmental justice organisations and other supportersMovement Viva o Rio Madeira Vivo, Brazil, The Instituto Madeira Vivo (The Living Madeira Institute)
The Conflict and the Mobilization
Intensity of Conflict (at highest level)MEDIUM (street protests, visible mobilization)
When did the mobilization beginPREVENTIVE resistance (precautionary phase)
Groups MobilizingIndigenous groups or traditional communities
International ejos
Local ejos
Social movements
Forms of MobilizationCreation of alternative reports/knowledge
Development of a network/collective action
Development of alternative proposals
Involvement of national and international NGOs
Lawsuits, court cases, judicial activism
Media based activism/alternative media
Objections to the EIA
Official complaint letters and petitions
Public campaigns
Street protest/marches
Environmental ImpactsPotential: Biodiversity loss (wildlife, agro-diversity), Floods (river, coastal, mudflow), Food insecurity (crop damage), Global warming, Loss of landscape/aesthetic degradation, Deforestation and loss of vegetation cover, Large-scale disturbance of hydro and geological systems, Reduced ecological / hydrological connectivity
Socio-economic ImpactsPotential: Displacement, Loss of livelihood, Violations of human rights, Loss of landscape/sense of place
OtherDisplacement of people
Project StatusUnder construction
Pathways for conflict outcome / responseDeaths
Institutional changes
Negotiated alternative solution
Strengthening of participation
Application of existing regulations
Nilce de Souza Magalhães, activist of MAB, was killed in Jan 2016 [1]
Do you consider this as a success?No
Why? Explain briefly.Despite the protests, the construction of the dams is underway, it started commercial operations by 2012 and construction is expected to be over by 2015.
Sources and Materials

Convention 169 ILO


Escritos sobre o agua, Forum Carajas, 2003.

Las Venas del ALCA: Integracion de la Infraestructura Regional de Sudamrica, IIRSA.

Bolivia, un pas de transito y de extraccin de recursos, Fobomade, 2003.

Otro paso en la explotacin de los pueblos y territorios Sudamericanos, Friends of the Earth, 2003.

The El Norte Amazonico de Bolivia y el Complejo del rio Madera. Fobomade, 2007.

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Madeira Fact Sheet, IRN, 2007
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Energia Sustentavel do Brasil
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Inter-American Development Bank
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Madeira River, International Rivers Campaigns
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L'Inganno dei Green Bond, Re:Common
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Madeira River dams, Survival
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The Madeira River Complex, AmazonWatch
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[1] MAB, 22June2016, Corpo de Nicinha é encontrado após cinco meses desaparecido
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Media Links

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Other Documents

Jirau Dam on the Madeira River, 2012 Nationalgeographic
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Jirau Dam under on-going construction on the Madeira River The Washington Post
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Nilce de Souza Magalhães Nilce de Souza Magalhães (MAB), killed in Jan 2016
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Meta Information
ContributorLucie Greyl & Joan Martinez Alier
Last update23/06/2016