The Xiaolangdi Multipurpose Dam

The Xiaolangdi Multipurpose Dam

The Xiaolangdi Multipurpose Dam was built approx. 40 km north of Luyoang in the Chinese province of Henan between July 1994 and June 2001. This dam was designed to fulfill the following tasks:

• Flood protection for the densely populated areas along the lower course of the Huang He River (Yellow River)
• Water supply at low water at the lower course
• Electricity generation from water power (1.800 MW)
• Irrigation of agricultural areas
• Control and reduction of sludge deposition

 Lot 2, which was carried out by Wayss & Freytag in a joint venture, comprised:

• Intake and outlet structure (281 m long, 46 m wide and 108 m high)
• Stilling basin (plunge pool)
• Absorption basin
• Spillway
• 10 Tunnels

Further details:       

• 18,260,000 m³ ground and rock excavation (excavated material)
• 1,200,000 m³ tunnel excavation (excavated material)
• 1,850,000 m³ concrete for the structures
• 580,000 m³ concrete for the tunnels
• 91,000 t reinforcing steel