| Chicoasén Dam | |
| Name Official: | Presa Manuel Moreno Torres |
| Location Map: | Mexico |
| Coordinates: | 16.9417°N -93.1006°W |
| Country: | Mexico |
| Location: | Chicoasén, Chiapas |
| Status: | In use |
| Construction Began: | 1974 |
| Opening: | 1980 |
| Owner: | Comisión Federal de Electricidad |
| Dam Height: | 2610NaN0 |
| Dam Length: | 4850NaN0 |
| Dam Crosses: | Grijalva River |
| Res Name: | Chicoasén Reservoir |
| Res Capacity Total: | 16130000000NaN0 |
| Res Catchment: | 526000NaN0 |
| Plant Commission: | 1980-2005 |
| Plant Turbines: | 5 x 300 MW, 3 x 310 MW Francis turbines |
| Plant Capacity: | 2,430 MW |
The Chicoasén Dam (officially known as Manuel Moreno Torres) is an embankment dam and hydroelectric power station on the Grijalva River near Chicoasén in Chiapas, Mexico. The dam's power plant, officially named for Manuel Moreno Torres, contains 5 x 300 MW, 3 x 310 MW Francis turbine-generators. Torres was Comisión Federal de Electricidad's (the dam's owner) Director General in the later 1950s. The original generators were first operational in 1980 while the 310 MW units were ordered in 2000 and operational by 2005. Since then, the hydroelectric power station is the largest in Mexico.[1] The dam was designed in the early 1970s and constructed between 1974 and 1980 under topographical and geological constraints. It is an earth and rock fill embankment type with a height of 2610NaN0and length of 4850NaN0.[2] It withholds a reservoir of 16130000000NaN0and lies at the head of a 526000NaN0 catchment area.[3] It is the tallest dam in North America.