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Wan’an

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Wan’an completed
Wan’an completed

Particulars

Owner: China Guodian Corporation

Designer: Yangtze Valley Planning Office

Contractor: Hydropower Command (China An’neng Construction Corporation)

Statistics

Type: Gravity

Purpose(s): Hydropower / Navigation

Reservoir capacity: 2216 m3x106

Height: 68 metres

Length: 1104 metres

Volume of RCC: 156 m3x103

Total volume: 1480 m3x103

Construction Dates

Start of Project: 11/84 (November 1984)

Start of RCC: 12/90 (December 1990)

End of RCC: 12/92 (December 1992)

End of Project: 06/94 (June 1994)

Country: China

River: Ganjiang

DMS Co-ordinates: unknown

DD Co-ordinates: unknown

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork

Spillway

SlopeType
ogeeTraditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
65
Pozzolan (kg/m3)Pozzolan Type
105Low-lime flyash (ASTM Class F)