| Irganai Dam | |
|---|---|
 | |
  Location of the Irganai Dam in Dagestan  Irganai Dam (Russia) | |
| Country | Dagestan, Russia |
| Location | Untskul region |
| Coordinates | 42°44′42.72″N 46°49′53.76″E / 42.7452000°N 46.8316000°E |
| Status | Operational |
| Construction began | 1979 |
| Opening date | 1998 |
| Owner(s) | RusHydro |
| Dam and spillways | |
| Impounds | Avar Koisu |
| Height | 111 m (364 ft) |
| Length | 317 m (1,040 ft) |
| Reservoir | |
| Creates | Irganai reservoir |
| Total capacity | 705,000,000 m3 (2.49×1010 cu ft) |
| Surface area | 18 km2 (6.9 sq mi) |
| Power Station | |
| Turbines | 4 x 200 MW |
| Installed capacity | 400 MW 800 MW (max. planned) |
| Annual generation | 1,280 GWh |
Irganai Dam is a hydroelectric dam in the Untskul region of Dagestan, Russia. It is located on the river Avar Koisu.