Gallito Ciego dam

Gallito Ciego dam Represa Gallito Ciego
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Location:  Peru Tributaries: Río Jequetepeque Drain: Río Jequetepeque Major cities nearby: Cajamarca Larger places nearby: Tembladera
Peru
Coordinates	7 ° 14 '4 "  S , 79 ° 12' 34"  W Coordinates: 7 ° 14 '4 "  S , 79 ° 12' 34"  W
Data on the structure
Lock type:	Earthfill dam
Construction time:	1981-1988
Height of the barrier structure :	102 m
Height of the structure crown:	413  m
Building volume:	13.9 million m³
Crown length:	782 m
Base width:	472 m
Power plant output:	34 MW
Operator:	Statkraft
Data on the reservoir
Altitude (at congestion destination )	404  m
Water surface	14.2 km²
Reservoir length	9 km
Reservoir width	1.6 km
Storage space	476 million m³
Total storage space :	392 million m³
Catchment area	3 500  km²
Design flood :	1 600  m³ / s

The Gallito Ciego dam (Spanish Represa Gallito Ciego ) is located on the Jequetepeque River in northwestern Peru in the Cajamarca region . The dam is located on the edge of the Peruvian Western Cordillera 77 km west of the city of Cajamarca . It is primarily used to irrigate up to 42,700 hectares of cultivated land in the downstream coastal plain (Jequetepeque – Zaña irrigation project) and to regulate runoff. Furthermore, a hydropower plant uses the gradient to generate energy. Gallito Ciego literally means “blind rooster”. The plant was taken over by SN Power Perú in 2003. Statkraft has been the operator of the facility since 2014 .

dam

The Gallito Ciego dam was built in 1981–1988. The dam project was largely implemented by the AGC consortium (Züblin AG, Wayss and Freitag). The planning was carried out by Salzgitter-Consult GmbH. The financing was provided by the Kreditanstalt für Wiederaufbau . The 102 m high earth embankment dam has a crown height of 413  m , a crown length of 782 m and a base width of 472 m. At the western end of the dam there is a flood relief system with a chute with a capacity of 1600 m³ / s.

Reservoir

The Río Jequetepeque is dammed over a length of 9 kilometers. The target is 404  m , the water surface at full water is about 14.2 km². The total storage space is 476 million m³. 392 million m³ of this (between the storage heights 361  m and 404  m ) form the usable storage space. 84 million m³ are below the minimum usable water level, 94 million m³ are above the maximum usable water level (between the water level 404  m and 410  m ). The national road PE-08 (Cajamarca – Ciudad de Dios) runs along the north bank of the reservoir. The catchment area covers around 3500 km².

Hydroelectric power plant

The hydroelectric power station Gallito Ciego (span. Central Hidroeléctrica Gallito Ciego ) was completed 1995-1997. It has a total installed capacity of 37.4 MW. The power plant has two vertically directed Francis turbines . The drop height is 83 m, the volume of water used is 42 m³ / s. The annual energy production is 156 GWh. There is an equalization basin below the hydropower plant.

ecology

In the mountainous region, the rainy season lasts from January to April, in which about 75 percent of the annual precipitation falls. During the El Niño years there are particularly pronounced heavy rain events. Due to the heavy deforestation in the upstream area, the Río Jequetepeque carries a large amount of sediment, which leads to a gradual silting of the reservoir.

Individual evidence

1. ↑ ^{a b} Troubled waters settle behind Peruvian dams . International Water Power & Dam Construction. January 12, 2000. Retrieved August 17, 2019.
2. ↑ ^{a b c d e f} Central Hidroeléctrica Gallito Ciego . Statkraft. Retrieved August 17, 2019.
3. ↑ ^{a b c d} Hans Meister: Water for life? Social consequences of the Gallito Ciego dam . Willi Knecht. Retrieved August 17, 2019.
4. ↑ ^{a b c} Guía de la central hidroeléctrica gallito ciego . www.buenastareas.com. October 7, 2010. Retrieved August 17, 2019.

Web links

• Complejo Turistico Gallito Ciego