Río Chira

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Río Chira
Poechos Dam

Poechos Dam

location EcuadorEcuador Ecuador , PeruPeruPeru 
River system Río Chira
Confluence of Río Catamayo and Río Macará
4 ° 17 ′ 8 ″  S , 80 ° 8 ′ 31 ″  W
Source height approx.  220  m
muzzle in the Pacific Ocean Coordinates: 4 ° 52 ′ 41 ″  S , 81 ° 9 ′ 38 ″  W 4 ° 52 ′ 41 ″  S , 81 ° 9 ′ 38 ″  W
Mouth height m
Height difference approx. 220 m
Bottom slope approx. 1.2 ‰
length approx. 190 km
Catchment area 19,095 km²
Left tributaries Río Quiroz , Río Chipillico
Right tributaries Río Alamor , Quebrada Almendro
Reservoirs flowed through Poechos Reservoir
Big cities Sullana
Small towns Zapotillo

The Río Chira is an approximately 190 km long tributary of the Pacific Ocean , which in sections forms a border river between Peru and Ecuador . The Río Chira drains an area of ​​19,095 km². 7162 km² of this are in Ecuador.

River course

The Río Chira arises 25 km west-northwest of the city of Macará in the western foothills of the Andes at the confluence of the Río Catamayo and Río Macará . The Río Chira initially flows 120 km to the southwest. It forms the state border over a length of 52 km up to the confluence of the Río Alamor ( Río Malves ). The small town of Zapotillo is located on the northern bank of the river. At river kilometer 108, the river is dammed by a dam ( ) over a length of about 20 km to the Poechos reservoir . The reservoir has a capacity of 885 million m³. Below the dam, the Río Chipillico flows into the Río Chira on the left. At river kilometer 70 the big city Sullana is on the left bank of the river. Two kilometers downstream is a weir ( ) on the Río Chira. Above the weir, part of the river water is diverted via an irrigation canal. The water is used to irrigate agricultural areas north of the lower reaches. In the lower 70 kilometers, the Río Chira turns west. Finally the Río Chira flows into an estuary , which is separated from the sea by a spit .

f1Georeferencing Map with all coordinates: OSM | WikiMap

Individual evidence

  1. a b c Cuenca e hidrografía del río Chira . Ministerio de Agricultura y Riego, Perú. Retrieved January 13, 2019.