| Joida | |
| Location Map: | India Karnataka#India |
| Coordinates: | 15.2761°N 74.5267°W |
| Country: | India |
| Location: | Joida |
| Status: | O |
| Construction Began: | 1974 |
| Opening: | 1987 |
| Dam Type: | Concrete gravity |
| Dam Height: | 1010NaN0 |
| Dam Length: | 3320NaN0 |
| Dam Crosses: | Kalinadi River |
| Res Capacity Total: | 41780000000NaN0 |
| Res Capacity Active: | 41150000000NaN0 |
| Res Catchment: | 10570NaN0 |
| Plant Hydraulic Head: | 720NaN0 (design) |
| Plant Commission: | 1985 |
| Plant Turbines: | 2 x 50 MW Francis-type |
| Plant Capacity: | 100 MW |
Supa Dam is built across Kalinadi (Kannada) or Kali river in state of Karnataka in India and is the tallest dam in Karnataka. The 101 meters high and 332 meters long dam has 3 gates of 15x10 meters.[1] The dam's gross capacity is 4.178 cubic km or 147 tmc ft. It is situated at GaneshaGudi, which is in Joida taluk of Uttara Kannada district. The dam forms the main storage reservoir to all the power houses in Kalinadi hydro power project of total installed capacity of 1180MW, which includes main Nagzari power house of 810 MW capacity. The power house at the foot of the dam has two 50 MW electricity generators. The electricity generated is supplied to different parts of Karnataka. The dam was built by Hindustan Steel Works Construction Limited and is designed, owned and operated by Karnataka Power Corporation Limited. The power house was commissioned in 1985. The dam is basically used for generation of hydro electricity.