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General Information

Name in local language: Barragem do Cabril
Beginning of works: 1950
Completion: 1954
Status: in use

Project Type

Structure: Arch dam
Function / usage: Hydroelectric dam / plant
Material: Concrete dam

Location

Location: , ,
,
Impounds:
  • Zêzere River
Coordinates: 39° 55' 4.61" N    8° 7' 55.86" W
Show coordinates on a map

Technical Information

Dimensions

height 136 m
retained water volume 719.0 hm³
crest length 290 m
dam volume 360 000 m³

Materials

Excerpt from Wikipedia

Cabril Dam (Portuguese:Barragem do Cabril) is a concrete double curvature arch dam on the Zêzere River, where the river forms the border line between the districts of Castelo Branco and Leiria. It is located in the municipality Sertã, in Castelo Branco District, Portugal.

Construction of the dam began in 1950. The dam was completed in 1954. It is owned by Companhia Portuguesa de Produção de Electricidade (CPPE).

Dam

Cabril Dam is a 132 m tall (height above foundation) and 290 m long double curvature arch dam with a crest altitude of 297 m. The volume of the dam is 360,000 m³. The dam features on both banks one shaft spillway (combined maximum discharge 2,200 m³/s) and one bottom outlet (maximum discharge 200 m³/s). The Dam's arch is crossed by Estrada Nacional 2, Portugal's longest road

Reservoir

At full reservoir level of 294 m (maximum flood level of 296.3 m) the reservoir of the dam has a surface area of 20.23 km² and a total capacity of 720 mio. m³ (active capacity 615 mio. m³). Minimum operating level is 240 m. With the 615 mio. m³ water 339.3 GWh can be produced.

Power plant

The hydroelectric power plant went operational in 1954. It is owned by CPPE, but operated by EDP. The plant has a nameplate capacity of 108 (97) MW. Ist average annual generation is 304.8 (301 or 312) GWh.

The power station contains 2 Francis turbine-generators with 47 MW (61 MVA) each in a surface powerhouse at the toe of the dam. The turbine rotation is 214.3 rpm. The minimum hydraulic head is 84.6 m, the maximum 121.5 m. Maximum flow per turbine is 54 m³/s.

Text imported from Wikipedia article "Cabril Dam" and modified on July 23, 2019 according to the CC-BY-SA 4.0 International license.

Participants

Owner
Structural engineering
Contractor

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Relevant Publications

  • About this
    data sheet
  • Structure-ID
    20012686
  • Published on:
    03/08/2004
  • Last updated on:
    10/01/2020
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