| Kayrakkum Dam | |
| Location Map: | Tajikistan |
| Coordinates: | 40.277°N 69.8161°W |
| Country: | Tajikistan |
| Location: | Kayrakkum Ghafurov District, Sughd Province |
| Purpose: | Irrigation, power |
| Status: | O |
| Construction Began: | 1952 |
| Dam Type: | Embankment |
| Dam Crosses: | Syr Darya River |
| Dam Length: | 1202m (3,944feet) |
| Dam Height: | 32m (105feet) |
| Dam Elevation Crest: | 351.5m (1,153.2feet) |
| Spillway Capacity: | 3960m3/s |
| Res Name: | Kayrakkum Reservoir |
| Res Capacity Total: | 4200000000m2 |
| Res Capacity Active: | 2300000000m2 |
| Res Capacity Inactive: | 1900000000m2 |
| Res Catchment: | 136000km2 |
| Res Surface: | 513km2 |
| Res Elevation: | 347.5m (1,140.1feet) |
| Plant Operator: | Barki Tojik |
| Plant Commission: | 1956-1957 |
| Plant Type: | Conventional |
| Plant Turbines: | 6 x 21 MW Kaplan-type |
| Plant Capacity: | 126 MW |
The Kayrakkum Dam (Russian: Кайраккумская ГЭС; Tajik: НБО Қайроққум), also spelt variously as Kayrakum, Kairakum, Qayraqqum or Qayroqqum, is an embankment dam on the Syr Darya River near the town of Kayrakkum in Sughd Province, Tajikistan. It is situated on the western edge of the Fergana Valley and creates Kayrakkum Reservoir. The reservoir supplies water for irrigation, primarily in Uzbekistan downstream, and hydroelectric power production.[1] The reservoir is also a Ramsar site. The dam's power station has an installed capacity of 126 MW and is operated by Barki Tojik.[2] Construction on the dam began in 1952. It began to impound its reservoir in 1956 and the first two generators were commissioned that year. The other four were operational in 1957 and the project was complete in 1959.[3] The power station is currently undergoing a rehabilitation which should be completed in 2020. Two new and larger turbines will increase the installed capacity to 142 MW.[4] [5]
The 32m (105feet) tall and 1202m (3,944feet) long embankment dam is filled with sand, gravel and rock. Its spillway and power station are co-located on the left side of the dam in a gravity dam section. The spillway contains six maintenance gates and six operational gates with a total discharge capacity of 3960m3/s. The power station houses six 21 MW Kaplan turbine-generators. Kayrakkum Reservoir has a total storage capacity of 4200000000m2 and surface of 513km2. Of the total reservoir capacity, 2300000000m2 can be used for irrigation downstream and/or power generation. 1900000000m2 is dead or unusable storage.[3]