|Official name||Presa Tumarín|
|Opening date||2019 est.|
|Construction cost||US$1.1 billion|
|Dam and spillways|
|Type of dam||Gravity, roller-compacted concrete|
|Impounds||Río Grande de Matagalpa|
|Height||45 m (148 ft)|
|Length||350 m (1,150 ft)|
|Total capacity||200,000,000 m3 (160,000 acre·ft)|
|Catchment area||15,300 km2 (5,900 sq mi)|
|Surface area||20 km2 (7.7 sq mi)|
|Max. water depth||30 m (98 ft)|
|Turbines||3 x 84.22 Kaplan-type|
|Installed capacity||253 MW|
|Annual generation||1,184 GWh (est.)|
The Tumarín Dam is a gravity dam currently under construction on the Río Grande de Matagalpa just upstream of the town of Tumarín in the South Caribbean Coast Autonomous Region, Nicaragua. It is located about 35 km (22 mi) east of San Pedro del Norte, where the Río Grande de Matagalpa meets the Tuma River. Preliminary construction (roads, bridges and foundation) began in 2011 and main works are expected to begin in February 2015. Completion is scheduled for 2019. Brazil's Eletrobras will fund the US$1.1 billion under a 20 to 30 year build–operate–transfer (BOT) agreement. The project is being developed by Centrales Hidroelectricas de Nicaragua (CHN). The power station located at the base of the dam will house three 84.33 MW Kaplan turbine-generators for an installed capacity of 253 MW.
- "Perfil Central Hidroeléctrica Tumarín" (PDF) (in Spanish). Ministerio deEnergía y Minas. Retrieved 29 April 2014.
- "Brazilian companies to build a US$1.1 billion dam in Nicaragua as of next February". Trade News. 12 November 2014. Retrieved 22 November 2014.
- "Nicaragua set to break ground on 253-MW Tumarin hydroelectric project". Hydro World. 29 January 2014. Retrieved 29 April 2014.
- Kaften, Cheryl (24 August 2011). "Mixing Water with Oil: Nicaragua Adds Hydroelectric Capacity to Its Power Portfolio". GreenTechnologyWorld. Retrieved 29 April 2014.