The Manasi River (simplified Chinese: 玛纳斯河; traditional Chinese: 瑪納斯河; pinyin: Mǎnàsī hé, Uyghur: ماناس دەرياسى also called Manas) is in the south of Dzungarian Basin, Xinjiang, China.
Historically, the Manas River crossed a large section of the Gurbantünggüt Desert, terminating in Lake Manas (45°48′00″N 85°56′00″E / 45.80000°N 85.93333°E); its length then was about 450 km (280 mi) long. However, due to the water diversion for irrigation and other needs, the Manas River's water has not reached the eponymous lake since the 1960s, and the lake has gone dry.[1][2]
Numerous reservoirs are constructed on the Manas River and connected streams in the Shihezi City-Manas County area, including the Jiahezi Reservoir (夹河子水库; Jiāhézi shuǐkù) with the dam at 44°27′00″N 86°7′15″E / 44.45000°N 86.12083°E. The reservoirs and canals form an extensive irrigation system in the area.