 |
|
The Hemavathi
River starts in the Western Ghats at
an elevation of about 1,219 metres near Ballala rayana durga in the Chikmagalur District of the state of Karnataka,
in southern
India. It flows through Tumkur, Hassan District where
it is joined by its chief tributary, the Yagachi River, and then into Mysore district before
joining the Kaveri near Krishnarajasagara. It is approximately 245 km long and has a
drainage area of about 5,410 km².
Hemavati
Dam and Reservoir
Hemavathy Dam is constructed across the river Hemavathy,
an important tributary of the river Kaveri. The dam is
located in Gorur, near
the city of Hassan in Karnataka. Built in 1979, the reservoir has been serving
multiple purposes of providing water supply for drinking and other purposes and
for irrigation of the agricultural land of the nearby villages. The dam is 58
meters in height, and 4692 meters long, impounding a reservoir of 8502
hectares
The Shettihalli Rosary Church,
which was submerged during the construction of the dam can be seen only when
the dam height is low during the summer months. The church was constructed by
French Missionaries in the 1860s, and has a mighty and magnificent structure in
the Gothic
Architecture. In 1960, when the government decided to build the
dam, the church was abandoned. When the water level is low, sometimes coracles
are used to go inside the church.
Hemavathy Dam is a large reservoir covering a
catchment area of 2,810 sq km. With a length of 4,692 meters and a height of
58.5 meters the reservoir has gross storage capacity of 1,050.63 mcm. The
reservoir has 6 large radial spillway
gates.
*********************************************************************************************************************************** |
 |
The Tungabhadra Dam is constructed across the Tungabhadra River, a tributary of the Krishna river. The
dam is near the town of Hospet in Karnataka. It is a multipurpose dam
serving irrigation, electricity generation, flood control, etc. This is a joint
project of erstwhile Hyderabad state and erstwhile Madras Presidency when the construction
was started; later it became a joint project of Karnataka and Andhra Pradesh after its completion in
1953. The main architect of the dam was Dr Thirumala Iyengar, an engineer from
Madras.
The dam creates the biggest reservoir on the Tungabhadra River with 101 tmcft of
gross storage capacity at full reservoir level (FRL) 498 m MSL, and a water
spread area of 378 square kilometres. The dam is 49.39 meters high above
its deepest foundation. The left canals emanating from the reservoir
supplies water for irrigation entirely in Karnataka state. Two right bank
canals are constructed — one at low level and the other at high level serving
irrigation in Karnataka and Rayalaseema region of Andhra Pradesh. Hydropower units are installed on
canal drops. The reservoir water is used to supply water to downstream barrages Rajolibanda and Sunkesula located on the Tungabhadra River. The identified water use
from the project is 220 tmcft by the Krishna Water Disputes Tribunal. Karnataka and Andhra Pradesh
got 151 tmcft and 79 tmcft water use entitlement respectively.
|
 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The Almatti Dam (ಆಲಮಟ್ಟಿ ಅಣೆಕಟ್ಟು) is
a hydroelectric project on the Krishna River in North Karnataka,
which was completed in July 2005. The target annual electric output of the dam
is 560 MU (or GWh).
The Almatti Dam is the main reservoir of the Upper Krishna Irrigation Project. The 290 MW power station is located on the right side of
the Almatti Dam. The facility uses vertical kaplan turbines five 55MW generators and one 15MW generator.
Water is released in to the Narayanpur reservoir after
using for power generation to serve the downstream irrigation needs.
During the initial
stages of the project, estimated costs were projected as Rs.14.70 billion, but following the
transfer of project's management to the Karnataka
Power Corporation Limited (KPCL),
the estimated cost was reduced by over fifty percent to Rs. 6.74 billion.
The KPCL eventually completed the project at an even lower cost of Rs.
5.20 billion. The entire dam
was finished in less than forty months, with construction ending in July 2005.
The dam is located on the edge of Bijapur and Bagalkot districts. Geographically, it is located in the
Bijapur district, but large areas
of Bagalkot district have also been submerged due to filling of the reservoir. The dam holds a gross water storage
capacity of 123.08 TMC at
519 meters MSL.
The full reservoir level of Almatti dam was originally
restricted to 519 meters MSL by the supreme court of
India.The Krishna River conflict between Andhra Pradesh, Karnataka, and Maharashtra was resolved by the Brijesh Kumar Tribunal and the dam was authorised to be raised to the height of 524 meters MSL with nearly 200 TMC gross storage capacity.
******************************************************************************************************************************************************************************************************
Major & Minor
Dams in Karnataka (above 20 m
height)
|
No comments:
Post a Comment