Kaptai Lake Chittagong Kaptai Lake is the biggest man made lake in Bangladesh. It is situated in the Kaptai Upazila under Rangamati District of Chittagong Division. The lake was made because of building the Kaptai Dam on the Karnaphuli River, as a feature of the Karnaphuli Hydro-electric task. The Kaptai Lake's normal profundity is 100 feet (30 m) and most extreme profundity is 490 feet (150 m). Development of the store for the hydro-electric plant started in 1956 by the Government of East Pakistan. Subsequently, 54,000 sections of land (220 km2) of farmland in the Rangamati District went submerged and made the lake. The hydro-electric undertaking was subsidized by the United States. The task was done in 1962. Worldwide Engineering Company and Utah International Inc. gotten the agreement for development of the dam. The dam is 670.8 meters in length, and 54.7 meters high. The dam has a 745 feet (227 m) long spillway containing 16 doors. Through the spillway 5,250,000 cu ft/s
History of Bangladesh.