Silveh Dam

Dam in West Azerbaijan Province, Iran

36°47′0.32″N 45°6′47.30″E / 36.7834222°N 45.1131389°E / 36.7834222; 45.1131389PurposeInter basin transfer, IrrigationStatusOperationalConstruction began2004Opening date2015Owner(s)Regional Water Company of West AzerbaijanDam and spillwaysType of damEmbankment, earth-fillImpoundsLavin RiverHeight (foundation)92 m (302 ft)Height (thalweg)93 m (305 ft)Length731 m (2,398 ft)Spillway typeUncontrolled, serviceSpillway capacity1,040 m³/s (37,000 cu ft/s)ReservoirCreatesSilveh ReservoirTotal capacity163,000,000 m³ (132,000 acre⋅ft)

The Silveh Dam (Persian: سد سیلوه) is an earth-fill embankment dam on the Lavin River just downstream of the village of Silveh in Piranshahr County, West Azerbaijan Province, Iran. The primary purpose of the dam is interbasin transfer for irrigation. Since completion, a tunnel and canals shift water from the reservoir north to the Chaparabad area. The project essentially transfers water from the Little Zab River basin to the Lake Urmia basin in an effort to help replenish the lake and irrigate about 9,400 ha (23,000 acres) of farmland.^{[citation needed]} Construction on the dam began in 2004 and it was expected to be complete by the end of 2015.^[1]^[2] The dam was effectively completed as of 2018.^[3] The village of Silveh will be flooded when the reservoir is impounded.^[4]

The dam is 102 m (335 ft) above its foundation with a length of 750 m (2,460 ft). It has an uncontrolled spillway with a maximum discharge capacity of 1,040 m³/s (37,000 cu ft/s). The reservoir created by the dam will store 163,000,000 m³ (132,000 acre⋅ft) of water. Near the northeastern edge of the reservoir water will be able to enter a 841 m (2,759 ft) long tunnel which will discharge it into the opposing valley, within the Lake Urmia basin. About 121,700,000 m³ (98,700 acre⋅ft) of water will be transferred through the tunnel annually while an estimated 10,800,000 m³ (8,800 acre⋅ft) will be sent downstream to Piranshahr during the same period.^[5]

References

^ "Completed by the end of the 94 dams Silveh Piranshahr" (in Persian). Kurd Press. 23 August 2014. Archived from the original on 20 January 2015. Retrieved 20 January 2015.
^ "Evaluating Liquefaction Potential in an Embankment Dam Foundation Using Shear Wave Velocity Measurements". CSCE 2007 Annual General Meeting & Conference. June 2007. Retrieved 20 January 2015.
^ Jafarzadeh, Fardin (July 2018). "Sealing Performance of Silveh Embankment Dam Cutoff Wall Based on Instrumentation Measurements". Researchgate.
^ "Villages under the dam Silveh determine Piranshahr" (in Persian). MEHR News Agency. 14 August 2014. Retrieved 20 January 2015.
^ "Silveh Dam and Irrigation and Drainage" (in Persian). Omran Iran - Deputy Governor of West Azerbaijan. Archived from the original on 20 January 2015. Retrieved 20 January 2015.