La Yesca Dam is an embankment dam on the Santiago River  northwest of Guadalajara on the border of Mexico's Nayarit and Jalisco states. Construction on the dam began in 2007 after Empresas ICA was awarded the main construction contract. The dam was inaugurated by President Felipe Calderón on 6 November 2012. The dam supports a 750 MW hydroelectric power station and is part of the Hydroelectric System Santiago. Its construction will improve the regulation of water flow and subsequently power generation downstream at the El Cajón and Aguamilpa Dams.