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
Karwar(topographic map, 1:250,000), series U502, sheet ND 43-02, United States Army Map Service, March 1960