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REGISTRO ITALIANO DIGHE

Ufficio Periferico di Cagliari

versione italiana


 

Chicoasén (or Manuel Moreno Torres) Dam

 

 

Country

Mexico (Chiapas)

Italy (Sardinia)

River

Grijalva

Tirso

Dam type

Zoned rockfill with earth core

Concrete hollow-gravity

Construction period

1975-1980

1982-2000

Structural height

261 m

100 m

Gross storage capacity

1,443 Mm³

748 Mm³

Active storage capacity

270 Mm³

745 Mm³

Volume of the dam

15,400,000 m³

1,071,000 m³

Maximum controllable water surface

394.00 m a.s.l.

116.5 m a.s.l.

Maximum water surface

395.00 m a.s.l.

118 m a.s.l.

Crest elevation

402.00 m a.s.l.

120 m a.s.l.

Crest length

584 m

582 m

Maximum discharge capacity

Spillway: 15,000 m³/s;

Power plant: 5 x 186.7 m³/s.

Spillway: 2,835 m³/s;

Outlet works: 700 m³/s;

Power plant: 30 m³/s.

Nameplate capacity of the powerplant

Chicoasén is increasing its current installed capacity from 1,500 MW to 2,400 MW and will have 8 units generating 300 MW each

20 MW

Notes

Chicoasén Dam is the world’s fifth tallest. It’s named after Eng. Manuel Moreno Torres, the CFE Director General between 1959 and 1964.

Grijalva River carries huge loads of silt that could fill the reservoir, reducing the useful lifetime of the dam. For this reason, other dams are proposed for control of sediments on some tributary rivers.

The reservoir upstream of Cantoniera dam, Lake Omodeo, is the largest man made in Italy. It is named after Eng. Angelo Omodeo (1876-1941), who thought of the main water systems in Sardinia.

 

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Ultimo aggiornamento: 7 novembre 2005