Basava Sagar Dam, previously known as Narayanpura Dam, is a dam constructed across the
Krishna River
The Krishna River in the Deccan Plateau, Deccan plateau is the third-longest in India, after the Ganga, Ganga and Godavari. It is also the fourth-largest in terms of water inflows and river basin area in India, after the Ganga, Indus and Godav ...
at
Yadgir District, Karnataka State, India. The reservoir that it impounds is known as Basava Sagar, and has a total storage capacity of 37.965
tmcft
Tmcft, (Tmc ft), (TMC), (tmc) is the abbreviation of thousand million cubic feet (1,000,000,000 = 109 = 1 billion), commonly used in India in reference to volume of water in a reservoir
or river
A river is a natural stream of fresh wa ...
(1.075 km
3), with 30.5 tmcft (0.85 km
3) live storage.
The full reservoir level is 492.25 m MSL and the minimum draw down level is 481.6 m MSL. It was a single purpose project meant only for irrigation, but downstream electrical generation and drinking water considerations enter into its management. The dam is 29 meters high and over long,
and has 30 gates for water release. 22 Spillway Gates are present in the Dam
It took Rs. 50.48
crore
Crore (; abbreviated cr) denotes the quantity ten million (107) and is equal to 100 lakh in the Indian numbering system. In many international contexts, the decimal quantity is formatted as 10,000,000, but when used in the context of the India ...
to complete.
Gates
There are thirty spillway gates built into the dam. Each of these spillway gates are of the Ogee type. It is a common and basic design which transfers excess water from behind the dam down a smooth incline into the river below. These are usually designed following an ogee curve. Most often, they are lined on the bottom and sides with concrete to protect the dam and topography. The dam falls under the Parliamentary Constituency of Vijayapura, and it is classified as being an earthen/ gravity and masonry build type.
When it was completed in 1982
it provided water to irrigate 4.21 lakh hectares in
Jewargi taluka in
Kalaburagi district
Kalaburagi district, formerly known as Gulbarga district, is one of the 31 districts of Karnataka state in southern India. Kalaburagi city is the administrative headquarters of the district. The district is the headquarters of Kalaburagi divi ...
,
Shahapur and
Shorapur
Shorapur, is a city and taluka in Yadgir district in the Indian state of Karnataka and a historical place. Surapura was the land of the famous prince of Surapura aasthana, Raja Venkatappa Nayaka, the young rebel freedom fighter against British ...
talukas in Yadgir district,
Sindagi and
Indi
Indi may refer to:
*Mag-indi language
*Division of Indi, an electoral division in the Australian House of Representatives
* Indi, Karnataka, a town in the state of Karnataka, India
* Instrument Neutral Distributed Interface, a distributed control s ...
talukas in
Bijapur district, and
Lingsugur and
Devadurga talukas in
Raichur district
Raichur District is an administrative district in the Indian state of Karnataka. It is located in the northeast part of the state and is bounded by Yadgir district in the north, Bijapur district, Karnataka, Bijapur and Bagalkot district in the n ...
.
Future potential
Nearly 2000 MW capacity
pumped hydroelectric energy storage (PHES) plant can be installed using the Basava Sagara reservoir as its upper reservoir. In the downstream of the dam, lower reservoir with 5
tmcft
Tmcft, (Tmc ft), (TMC), (tmc) is the abbreviation of thousand million cubic feet (1,000,000,000 = 109 = 1 billion), commonly used in India in reference to volume of water in a reservoir
or river
A river is a natural stream of fresh wa ...
storage capacity can be located to utilize nearly 60 meters water head. PHES plant is a low cost method to store the excess power generated by the solar and wind power plants during the day time and make available for use during the night hours. Also substantial secondary hydro power can be generated using the flood water flows at no extra cost during the monsoon season. Also the downstream dam with 5 tmcft storage can have 200 MW hydro power capacity to generate secondary power from floodwaters during the monsoon season.
Incidents
In 1992, two of the irrigation gates partially failed.
In 2005, there was a collapse of one of the gates in the dam and up to a lakh cusecs of water was being released before emergency actions were effective.
The gate broke open on the morning of 6 October and most of the water flow was stopped by the afternoon of the 9th. Basava Sagar reservoir dropped several metres as a result.
In April 2011, farmers fearing loss of their crops staged a protest at Narayanpur dam, and forced the staff to release water after officials had shut down releases due to low rainfall and inflows. This type of protests in earlier years, such as the one in April 2005 where large numbers of police prevented the farmer's from releasing the water.
As of August 2013, the project has an estimated capacity of 31.47 TMC.
See also
*
Almatti Dam
The Lal Bahadur Shastri Dam is also known as Almatti Dam is a hydroelectric project on the Krishna River in North Karnataka, India which was completed in July 2005. The target annual electric output of the dam is 560 MU (or GWh).
The Almatti D ...
*
Upper Krishna Project
The Upper Krishna Project
(UKP) is an irrigation project across the Krishna River to provide irrigation to the drought-prone areas of Vijayapura district, Karnataka, Bagalkot, Kalburgi, Yadgir and Raichur districts in the state of Karnataka in ...
*
Rajolibanda Diversion Scheme
"Rajaolibanda Diversion Scheme" or "RDS" is an irrigation project located across River Tungabhadra in Jogulamba Gadwal district of Telangana, Kurnool district of Andhra pradesh and Raichur district of Karnataka. It is an inter-state barrage on th ...
References
External links
* Photos:
{{Krishna River dams
Dams in Karnataka
Dams on the Krishna River
Buildings and structures in Yadgir district
1982 establishments in Karnataka
Dams completed in 1982
20th-century architecture in India