Deokali Canal
India
Deokali Canal is one of the largest canals located in Ghazipur district of Uttar Pradesh, India. The canal is almost 90 km (56 mi) long. It has an average width of 40 m (132 ft). The cost of making the canal was 2.9 carore in 1978.
Canal data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).