Río Chancay (Lambayeque)

Río Chancay Río Reque
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Data
location	Peru
River system	Río Chancay
Headwaters	Western Cordillera , 20 km southwest of Bambamarca 6 ° 47 ′ 41 ″  S , 78 ° 39 ′ 2 ″  W
Source height	approx.  3750  m
muzzle	Pacific Ocean Coordinates: 6 ° 54 '32 "  S , 79 ° 53' 29"  W 6 ° 54 '32 "  S , 79 ° 53' 29"  W
Mouth height	0  m
Height difference	approx. 3750 m
Bottom slope	approx. 19 ‰
length	200 km
Catchment area	approx. 3950 km²
Right tributaries	Río Maichil
Reservoirs flowed through	Cirato dam
Small towns	Etén

The Río Chancay is a 200 km long tributary of the Pacific Ocean in northwestern Peru .

River course

The Río Chancay rises in the Western Cordillera , 20 km southwest of Bambamarca at an altitude of about 3750  m . It initially flows 20 km to the west and then turns 30 km to the north. At the town of Chancay Baños , he turns again to the west. The small town of Santa Cruz de Succhabamba is a few kilometers south of the river. From river kilometer 130 the trunk road 6A or 6B (Santa Cruz de Succhabamba - Chiclayo ) follows the river. The Cirato dam ( ⊙ ) is located on the river at river kilometer 107 . Much of the river water is fed through an underground pipeline to the Carhuaquero I – III ( ⊙ ) and Carhuaquero IV hydropower plants , which are located on the southern bank of the river at river kilometer 94. The water is then directed to the Carhuaquero V hydroelectric power station before returning to the river at river kilometer 90. At river kilometer 92 the Río Maichil flows from the north into the Río Chancay. At river kilometer 85 there is a dam ( ⊙ ) on the river. On the right bank branches off a 17 km long canal, which leads part of the river water to the Tinajones reservoir ( Reservorio de Tinajones ). The Río Chancay eventually reaches the coastal plain. At river kilometer 58 a canal branches off to the right above a weir ( ⊙ ). After about two kilometers, it splits into the more northerly Canal Taymi and the Río Lambayeque . Both channels are used for irrigation and do not reach the sea. The lower reaches of the Río Chancay is also called the Río Reque . The Río Chancay flows mainly in a westerly direction. The city of Chiclayo is 8 km north of the river. The river finally flows into the sea near the small town of Etén .

 Map with all coordinates: OSM | WikiMap

Hydrology

The catchment area of the Río Chancay covers an area of ​​about 3950 km². It extends over the regions of Cajamarca and Lambayeque . The flow rate fluctuates very strongly. During the rainy season, runoffs of 1000 m³ / s can be achieved, during the dry season it can only be 5 m³ / s.

Individual evidence

1. ↑ ^{a b} Principales cuencas hidrográficas a nivel nacional . Ministerio de Agricultura y Riego. Retrieved May 21, 2019.