The River Krishna is the second
biggest river in the peninsular India and takes birth
in the Mahadev range of Western Ghats. It rises in the
Western Ghats at an altitude of 1,336.49 m above sea level
near Mahabaleshwar in Maharashtra and flows across the
peninsula from west to east for a lenth of about 1,392
k.m. before it drains into the Bay of Bengal. It enters
the state of Karnataka at its 304 k.m . and passes through
the state for 480 k.m. and finallyfalls into Bay of Bengal
near Bapatla in AndhraPradesh . It is an interstate river
flowing in three States viz., Maharastra, Karnataka and
Andhra Pradesh. The river basin is 2.57 lac sq.k.m, and
the States of Maharastra, Karnataka and Andhra Pradesh
contributes 68,800 sq.k.m. (26.8%), 1, 12,600 sq.k.m.
(43.8%) and 75,600 sq.k.m. (29.4%) respectively. The Upper
krishna Project was originally conceived by the erstwhile
state of Hyderabad along with the Lower Krishna Project
was originally conceived by the erstwhile state of hyderabad
along with the Lower Krishna Project (now known as Nagarjunasagar
project). This project could not be initially implemented
because the submersion was mostly in Bijapur Dist., which
was then not a part of state of Mysore (Karnataka). After
the reorganisation of states the scope of the project
was modified so as to include two storage reservoirs.