Tuanjie Gou Aqueduct Introduction: Tuanjie Gou Aqueduct is a landmark building in Dazhai and a symbol of the spirit of Dazhai. The aqueduct was built in the 1970s. In order to introduce water into Hutou Mountain and irrigate the terraced fields, the Dazhai people built an aqueduct in Tuanjie ditch and covered the water aqueduct with stone slabs to form a water-transporting system below. A dual-purpose pedestrian bridge above. Below Tuanjie Valley is the famous Dazhai Reservoir, with the majestic aqueduct crossing it in the sky, which is a spectacular sight.