The Great Chüy Canal (Kyrgyz: Чоң Чүй каналы, [ʧɔɴ ʧyj kʰɑnɑɫɯ], Russian: Большой Чуйский канал, often abbreviated БЧК) is one of an extensive complex of irrigation canals of the Chuy Valley in Kyrgyzstan and to some extent Kazakhstan, composed of three branches: the Western Great Chüy Canal, the Eastern Great Chüy Canal, and the Southern Great Chüy Canal. The Great Chüy Canal flows through the northern part of Bishkek, the capital of Kyrgyzstan, from east to west. It was built under the administration of the Soviet Union, with as authoring engineer. The canal reaches the Ala-Archa River.