Moyocoya Dam
| Moyocoya Dam | |
|---|---|
 Moyocoya Dam at night | |
| Official name | Moyocoya Dam |
| Location | Itzatlahuitl, Xallipan |
| Purpose | Power, flood control, water storage, recreation |
| Status | Operational |
| Construction began | 1932 |
| Opening date | 1939 |
| Construction cost | 61 million Zacapine amatl (49 million Latin solidus) in 1932 |
| Owner(s) | Zacapine government |
| Operator(s) | Roads, Bridges and Dams Administration |
| Dam and spillways | |
| Type of dam | Concrete arch-gravity dam |
| Impounds | Yoliliz river |
| Height | 222 m (728 ft) |
| Length | 380 m (1,250 ft) |
| Elevation at crest | 377 m (1,237 ft) |
| Width (crest) | 14 m (46 ft) |
| Width (base) | 200 m (660 ft) |
| Dam volume | 2,480,000 m3 (3,240,000 cu yd) |
| Spillway type | 2 controlled drum gates |
| Spillway capacity | 11,000 m3/s (390,000 cu ft/s) |
| Reservoir | |
| Creates | Lake Seti |
| Total capacity | 40.500 km3 (32,834,000 acre⋅ft) |
| Active capacity | 22.346 km3 (18,116,000 acre⋅ft) |
| Inactive capacity | 18.154 km3 (14,718,000 acre⋅ft) |
| Catchment area | 500,000 km2 (190,000 sq mi) |
| Surface area | 544 km2 (210 sq mi) |
| Maximum length | 175 km (109 mi) |
| Maximum water depth | 200 m (660 ft) |
| Normal elevation | 3,280 m (10,760 ft) |
| Power Station | |
| Operator(s) | Electric Network Administration |
| Commission date | 1939–1960 |
| Hydraulic head | 180 m (590 ft) (Max) |
| Turbines |
|
| Installed capacity | 2,538 MW |
| Capacity factor | 29% |
| Annual generation | 6.4 TWh (23 PJ) (2022) |
The Moyocoya Dam is a hydroelectric Arch-gravity dam in the Itzatlahuitl section of the Yoliliz river in the Xallipan Republic of Zacapican. Built between 1932 and 1939, the Moyocoya Dam was the last of the great Xolotecatl era megaprojects to be completed as it was finished almost a full year after the assassination of Xolotecatl Acuixoc in 1938. The dam was proposed by the Public Works Secretary, Achto Moyocoya, who championed the project and rallied political support to push through the many hurtles the dam would face before and during construction. The project would come to bear Secretary Moyocoya's name as a result of his vigorous advocacy.
The dam sits just 40 kilometers from the center of Tzopilopan, a city of 1.7 million and the capital of Xallipan.