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Peñas Blancas

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Particulars

Owner: ICE (Instituto Costarricense de Electricidad)

Designer: ICE (Ing. William Porras)

Contractor: ICE (Ing. Irene Zúñiga)

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: 2 m3x106

Height: 48 metres

Length: 211 metres

Volume of RCC: 120 m3x103

Total volume: 170 m3x103

Construction Dates

Start of Project: 04/00 (April 2000)

Start of RCC: 07/01 (July 2001)

End of RCC: 01/02 (January 2002)

End of Project: 07/02 (July 2002)

Country: Costa Rica

River: Peñas Blancas

DMS Co-ordinates: unknown

DD Co-ordinates: unknown

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork  [stepped face]

Spillway

SlopeType
0.80Reinforced conventional concrete cast after RCC placement

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
90
Pozzolan (kg/m3)Pozzolan Type
35Natural pozzolan (ASTM Class N)