The Kali River or Kalinadi (Kannada: ಕಾಳಿ ನದಿ) is a river flowing through Karwar, Uttara Kannada district of Karnataka state in India. The river rises near Diggi, a small village in Uttar Kannada district. The river is the lifeline to some 4 lakh people in the Uttara Kannada district and supports the livelihoods of tens of thousands of people including fishermen on the coast of Karwar. There are many dams built across this river for the generation of electricity. One of the important dams build across Kali river is the Supa Dam at Ganeshgudi. The river runs 184 kilometers before joining Arabian Sea.
Significant and pictureseque, the Sadashivgad fort is now a popular tourist destination located by the coastal highway Kali river bridge, which has been built above the confluence of the river and the Arabian Sea.
The National Highway NH-17 continues on the Kali Bridge built over Kali River and the road continues to split the Sadashivgad granite rock hill to connect Karnataka to Goa.
Untreated effluents released directly into the river by industrial units and illegal sand mining in the Supa Dam area resulted in serious disturbances to the river's ecology. The government strategy for controlling the pollution from illegal sand mining has produced a cleaner river. The releases from a papermill have drawn crocodiles to the Anshi Dandeli Tiger Reserve. Chemical and petroleum companies near its estuary have been leaking toxic wastes, including mercury, into the Kali River for decades.
^The former village of Supa, which gave its name to the dam and the taluka, was drowned when the reservoir was created. For its location see Belgaum(topographic map, 1:250,000), series U502, sheet ND 43-02, United States Army Map Service, May 1960