Complex sentence: It was built in the early 1980s on the Chilik River at the base of the Sogety Plateau (Syugaty Hills) as part of an irrigation project; the dam was completed in 1983 and the site became operational in 1985.
Split into simpler sentences: It was built in the early 1980s on the Chilik River at the base of the Sogety Plateau (Syugaty Hills) as part of an irrigation project. The dam was completed in 1983 and the site became operational in 1985.