The world's longest masonry dam is ____________.
Masonry dams are dams made out of masonry – mainly stone and brick, sometimes joined with mortar. They are either the gravity or the arch-gravity type. Nagarjuna Sagar Dam is the world's largest masonry dam built across Krishna River in Nagarjuna Sagar, Nalgonda district of Telangana. The dam was constructed between the years of 1955 and 1967.