Supa Dam is built across Kalinadi (Kannada) or Kali river in state of Karnataka

Karnataka

Karnataka , the land of the Kannadigas, is a state in South West India. It was created on 1 November 1956, with the passing of the States Reorganisation Act and this day is annually celebrated as Karnataka Rajyotsava...

 in India. The dam is situated in Joida

Joida

Joida is a small town in the Western Ghats of Karnataka, India. The town is the headquarters of the eponymous taluk, lying in the Uttara Kannada district. Located close to Ambikanagar, Joida is also called Supa by locals. KPCL maintains the Supa Dam, which straddles the Kali River nearby.Joida...

 taluk of Uttara Kannada

Uttara Kannada

Uttara Kannada also known as North Canara or North Kanara, is a district in the southern Indian state of Karnataka. It is bordered by the state of Goa and Belgaum District to the north, Dharwad District and Haveri District to the east, Shimoga District and Udupi District to the south and the...

 district. The power house at the foot of the dam has two electricity

Electricity

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

 generators of fifty megawatt each. The electricity

Electricity

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

 generated is supplied to different parts of Karnataka. The dam was built by Hindustan Steel Works Corporation Limited (HSCL) and is now operated by Karnataka Power Corporation Limited

Karnataka Power Corporation Limited

Karnataka Power Corporation Limited is a company owned by the government of Karnataka, and is engaged in the generation of electrical power. The modes for generation of electric power are hydroelectric, thermal and diesel...

. The power house was commissioned in 1985.

Background

The construction started in 1974 and ended in 1987. It has a gross storage capacity of 4178 Mcum and a live storage of 4115.25 Mcum of water. It is designed having two generators of 55 MVA and has a generator voltage of 11KV. The entire generator output accounts for 100 MW of electricity with 2916 Terminal Amp/unit and a line voltage of 110 KV. They generate about 542 Million Units annually. The output four lines of the grid are distributed between the substations at Ponda and Ambewadi equally. It is a concrete gravity dam with a height of 101 m and length of 332 m with 3 radial gates of 15m x 10m dimension and has vertical Francis turbine

Francis turbine

The Francis turbine is a type of water turbine that was developed by James B. Francis in Lowell, Massachusetts. It is an inward-flow reaction turbine that combines radial and axial flow concepts....

s with a design head of 72 m.