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Porce II

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Porce II completed
Porce II completed

Particulars

Owner: Empresas Públicas de Medellín

Designer: INTEGRAL S.A.

Contractor: Dragados y Construcciones S.A. (following Astaldi S.p.A., CMC, Federici, Recchi, Topco J.V.)

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: 211 m3x106

Height: 123 metres

Length: 425 metres

Volume of RCC: 1305 m3x103

Total volume: 1445 m3x103

Construction Dates

Start of Project: 11/94 (November 1994)

Start of RCC: 12/96 (December 1996)

End of RCC: 09/00 (September 2000)

End of Project: 03/01 (March 2001)

Country: Colombia

River: Porce

DMS Co-ordinates: 06˚48'21.25"N, 74˚08'53.13"W

DD Co-ordinates: 6.805903, -74.148094

Facings

Upstream

SlopeType
0.10Slip-formed/extruded facing elements

Downstream

SlopeType
0.35Slip-formed/extruded facing elements  [stepped face]
0.75 

Spillway

SlopeType
0.75Reinforced concrete cast against precast units or slip-formed facing elements

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
132
120
Pozzolan (kg/m3)Pozzolan Type
88Natural pozzolan (ASTM Class N)
80