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Teesta low dam (Stage IV)

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Teesta low dam (Stage IV) completed
Teesta low dam (Stage IV) completed

Particulars

Owner: NHPC Ltd.

Designer: NHPC Ltd.

Contractor: Hindustan Construction Co. Ltd., Mumbai

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: 37 m3x106

Height: 45 metres

Length: 196 metres

Volume of RCC: 167 m3x103

Total volume: 170 m3x103

Construction Dates

Start of Project: 05/06 (May 2006)

Start of RCC: 01/13 (January 2013)

End of RCC: 05/15 (May 2015)

End of Project: 08/16 (August 2016)

Country: India

River: Teesta

DMS Co-ordinates: 26˚55'41.17"N, 88˚27'15.97"E

DD Co-ordinates: 26.928102, 88.454437

Facings

Upstream

SlopeType
0.40RCC against formwork (GEVR/GE-RCC)  [stepped face]

Downstream

SlopeType
0.80RCC against formwork (GEVR/GE-RCC)  [stepped face]

Spillway

SlopeType
separate 

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
85
Pozzolan (kg/m3)Pozzolan Type
135Low-lime flyash (ASTM Class F)