The Andharmanik River is located in Bangladesh. It is one of the larger coastal rivers of the Ganges–Padma system, and one of the major rivers of Kalapara Upazila in Patuakhali District. In recent years the people of Kalapara have raised their concerns regarding the gradual drying up of the river. From the total length of about 40 kilometres (25 mi), at least 25 kilometres (16 mi) of the river have permanently dried out due to the sedimentation and rise of new alluviums. During the 1960s, the local government constructed many dams over Andharmanik and other nearby rivers to avoid the salination of the arable lands. Mainly from this period Andharmanik began to dry up. One of the most influential of these dams is the one over the Kochupatra river which is the source of Andharmanik. Other cau