Supa Dam is the second largest dam in the State. This 101 Mtrs high and 332 Mtrs long concrete gravity dam is built across the Kalinadi river in Joida Taluk of Uttara Kannada District. It has a catchment area of 1057 Sq.Kms and the live storage capacity is 145 Tmcft. (Thousand Million Cubic Feet). Three radial gates of size 15 x 10 Mtrs are provided to regulate the flood discharge. The reservoir has two saddle dams of length 705 Mtrs and 940 Mtrs.

Supa Dam Power House is located at the right bank toe of the dam. It has two vertical axis Francis turbines of 50 MW each. They generate about 542 Million Units annually.