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Son La

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Son La completed
Son La completed

Particulars

Owner: EVN (Electrictie de Vietnam)

Designer: PECC1 (Power Engineering Consulting Company Nº1)

Contractor: Song Da Corporation (SDC)

Statistics

Type: Gravity

Purpose(s): Flood Control / Hydropower

Reservoir capacity: 9260 m3x106

Height: 138 metres

Length: 962 metres

Volume of RCC: 2677 m3x103

Total volume: 4800 m3x103

Construction Dates

Start of Project: 04/04 (April 2004)

Start of RCC: 01/08 (January 2008)

End of RCC: 08/10 (August 2010)

End of Project: 12/12 (December 2012)

Country: Vietnam

River: Sond Da (Black river)

DMS Co-ordinates: 21˚29'43.85"N, 103˚59'47.14"E

DD Co-ordinates: 21.495514, 103.996429

Facings

Upstream

SlopeType
VerticalRCC against formwork (GEVR/GE-RCC)

Downstream

SlopeType
0.73RCC against formwork (GEVR/GE-RCC)  [stepped face]

Spillway

SlopeType
separate 

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
60
Pozzolan (kg/m3)Pozzolan Type
160Low-lime flyash (ASTM Class F)