River Systems and Drainage
The district falls under two distinct river basins, the Godavari basin and the Krishna basin. The Godavari basin extends over 4,411 square kilometers of which Manjra river basin cover 1989 square kilometers and Karanja river basin covers 2422 square kilometers. The Krishna basin covers 585 square kilometers of which Mullamari river basin covers 249 square kilometers and Gandarinala river basin covers 336 square kilometers. The main river of the district is Manjra River, which is a tributary of the Godavari River. The Karanja River itself is tributary of Manjra River. These rivers and their rivulets are not navigable.