Project construction scale: The maximum adjustable water volume of the project is 26 million m3/year, including 21 million m3/year in Zhangjiakou City and Chongli County, and 5 million m3/year in Chongli (Chicheng) Tourist Area.

Project construction content: It is planned to divert water from Yunzhou Reservoir and supply water to Zhangjiakou City, Chongli County, Chongli County and Chicheng County ski resorts through the water transmission system. The new pumping main is 20.0km long (tho tunnels are 6020m and 1240m long respectively), with 4-level pumping stations. The new gravity section pipeline is 69.9krn long (one tunnel is 18.4km long). The new pumping branch is 6.75km long (one tunnel is 920m long), with 6-level pumping s ations. Project construction period: The total construction period is 3 years.