La Yesca Dam
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| La Yesca Dam | |
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  La Yesca Dam Location of La Yesca Dam in Mexico | |
| Official name | Presa Yesca |
| Country | Mexico |
| Location | La Yesca |
| Coordinates | 21°11′50″N 104°05′44″W / 21.19722°N 104.09556°W |
| Purpose | Power, river regulation |
| Status | Operational |
| Construction began | 2007 |
| Opening date | 6 November 2012 |
| Construction cost | US$768 million |
| Owner | Federal Electricity Commission |
| Dam and spillways | |
| Type of dam | Embankment, concrete-face rock-fill |
| Impounds | Río Grande de Santiago |
| Height | 220 m (722 ft) |
| Length | 628 m (2,060 ft) |
| Elevation at crest | 579 m (1,900 ft) |
| Dam volume | 11,900,000 m3 (15,564,612 cu yd) |
| Spillway type | Service, gate-controlled channel |
| Spillway capacity | 15,915 m3/s (562,033 cu ft/s) |
| Reservoir | |
| Total capacity | 2,500,000,000 m3 (2,026,783 acre⋅ft) |
| Active capacity | 1,392,000,000 m3 (1,128,513 acre⋅ft) |
| Catchment area | 51,590 km2 (19,919 sq mi) |
| Surface area | 33.4 km2 (13 sq mi)[1] |
| Normal elevation | 575 m (1,886 ft) |
| Power Station | |
| Commission date | 2012 |
| Type | Conventional |
| Turbines | 2 x 375 MW Francis-type |
| Installed capacity | 750 MW |
| Annual generation | 1,210 GWh (planned) |
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La Yesca Dam is an embankment dam on the Santiago River 90 km (56 mi) 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.[2] The dam supports a 750 MW hydroelectric power station and is part of the Hydroelectric System Santiago.[3] Its construction will improve the regulation of water flow and subsequently power generation downstream at the El Cajón and Aguamilpa Dams.[4]
