Sanliurfa tunnels system

The sanliurfa Tunnels System will be one of the longest irrigation tunnels system in the world when completed in 1993, comprising two concrete lined tunnels each 7,62 m in diameter, 26.4 km in length and discharging water from the Atatürk Dam reservoir at a maximum rate of 328 m 3 /sec. The supplied water will be conveyed to the Urfa-Mardin plains by an open channels system providing the irrigation of 476 474 hectares of land, of which 327 825 hectares will be by gravity and 148 649 hectares by pumping. Sanliurfa Tunnels, is the most important component of the South-East Anatolia Irrigation Project, (“GAP”) and will be entirely constructed by using Turkey’s own resources.