CISRG Database

(Dams Database: Rogun, Tadjikistan)

Head Office: 11753 Canfield Road, SW, Calgary Alberta T2W 1J6
Fax 403-250-6711 Tel: 403-238-1567 or 403-250-3930

History of Rogun Dam

Rogun Dam is being built primarily for irrigation and hydropower. It will be a 335-meter-high, earth/rockfill dam with the capacity to produce 3,600-MW of electricity. Considered the world's highest dam, and this project is also located in a zone of high seismic and tectonic activity. Construction is to occur between 1998 and 2003.

The Rogun Dam was under construction at the break up time of the USSR (1991), and development was stalled by wars in the region. During massive flood in 1993, the partly constructed structure of the Rogun Dam was completely devastated.

The observations and outcomes from the study of Nurek dam are applicable for the development of the Rogun Dam and mitigation of the hazards of RIS in the area of the new dam development.

It has to be noted that during the local political disturbance significant observations were lost. This presumed lost data as well as the long term components of the RIS may be bridged by pertinent ongoing monitoring which still must be reinforced by complementary equipment.

Based on the USA-USSR Exchanges in Earthquake Prediction, Nurek is one of the most completed RIS monitoring. The results from Nurek could affect significantly the manner of impoundment of the Rogun reservoir in view of the risk mitigation of relative dense population (estimated as over 28,000 people) to be affected by the resettlement of population associated to the new reservoir. The mitigation of RIS risk for the local people is best referred lately from the Lesothos impoundment in South Africa, where first resettlement associated to RIS was noted [both voluntarily as well as involuntarily] as relocation because of affected dwellings by induced seismicity.

Elements of RIS control through relationship of activities and the Rate of Impoundment (Operations) might have application for other seismic reservoirs elsewhere.

It is important to note that the Rogun reservoir will produce a higher stress concentration in the crust than Nurek. This is associated with an increased hydraulic head [about + 11%], increased storage volume [about 27% larger than Nurek] and increased land lost [about 13%] (although this is relatively less than that of Nurek because of high slope gradient of the upstream part of the river).