This was once part of the famed
Vijayanagar Empire and the Vijayanagar Emperor, Achutedeva Raya had
commissioned a man made tank here.
The Emperor had constructed an
anecut and a bund across a river flowing here. He also built an agrahara or a
settlement to house Brahmins and priests. This was sometime in 1532.
Inscriptions dating back to the
Vijayanagar period tells us that the anecut was built on the banks of the
Arkavathi river and a temple for Chandramoulishwara constructed.
When the Agrahara became
populated, it was called Siva Samudra Agrahara.
A few years later, Kempe Gowda, the founder ofBangalore
received this Agrahara and Bangalore
along with twelve hoblis from the Vijayanagar Emperor.
A few years later, Kempe Gowda, the founder of
Kempe Gowda then went on to
form the province
of Bangalore and Siva
Samudra Agrahara was part of it. Over centuries, the small tank served the water
needs of the people, catering to the domestic
and irrigation needs of the area.
During the time of Hyder Ali and Tipu Sultan, the Agraha came to
be more popularly known as Hesarghatta. During the Wodeyar rule, the small tank
was upgraded into a major water supply project.
Recommissioned in 1894, the
manmade reservoir was expected to meet the drinking water needs of Bangalore . The credit for
this project, called Chamarajendra Water works, goes to the then Diwan of Mysore , Seshadri Iyer and the then Chief Engineer of Mysore State ,
M.C. Huthcins.
Once the TG Halli became
operational, Hesarghatta was neglected and it was in 1994 that it last filled up.
Since then, there has not been any water in the vast lake except in a few
patches.
Thankfully, this year has
seen copious rains in Karnataka and other parts of the country. The rains have
led to the Hesraghatta
Lake showing signs of revival
and today it holds around eight feet of water. This may not mean much as the reservoir
can hold upto thirty five feet of water but the fact that water has started
flowing indicates that the water body, one given up for dead, can be revived.
If the State Government and
the authorities are serious about ensuring that the water once again continues
to flow into the reservoir, they have to clear the encroachments, repair the
infrastructure in and round the reservoir, revive the water source and clear
the water channels.
The total catchment area
draining into the reservoir is 73.84 km2 (2189 mi2), out of
which the direct draining catchment is 2.68 km2 (6.86 sq mi2). There
are 184 tanks built in the Arkavathy river basin upstream of the Hesaraghatta.
These needs to be revived.
The Arkavaty originates in
the Nandi Hills in Chikaballapur district and it joins the Cauvery
in Kanakapura after flowing through Kolar and Bangalore rural districts. The Vrishabhavaty
and the Suvarnamukhi are the tributaries which drain part of Bangalore
and Anekal taluks into the Arkavati
River .
All these needs to be taken
into consideration for reviving the Hesarghatta.
By the way, there is a
Government plan to pump water from Ethinahole to the Hesarghatta and TG Halli reservoirs.
This is the plan of the Urban Development Department.
These two reservoirs were Bangalore ’s major source
of drinking water until the Cauvery project was implemented in 1971.
The Urban Development
Department wants to go ahead with the project and the Water Resources
Department has agreed to give 2.5 tmcft of water from Ethinahole. This water
would be pumped to TG Halli and Hesaraghatta lakes, be treated and then it will
be pumped to the city.
For this to be effective,
Hesaraghatta has to be restored before
water is pumped into it. The water holding, pumping and supply infrastructure in
Hesarghatta has not been used since 1986.
When Hesarghatta supplied
water, it was initially taken by gravity through a 1.4 m dia (42" dia)
Hume pipe to the Soladevanahalli pumping station. Water was then pumped,
initially using steam pumps and later electric pumps, to the Combined Jewel
Filters (CJF) plant at Malleswaram for treatment and supply.
The pipes must have rusted
and broken down at some places. There is need to repair the existing pipes and
also lay new ones if the Urban Development Department wants to reuse the
Hesarghatta for water supply.
The department scheme
envisages pumping water from the west-bound Ethinahole river through canals to
a collection centre near Sakaleshpura. From there, the water would be allowed
to flow in an open canal till Tumkur and the BWSSB will pump the water to TG
Halli and Hesaraghatta reservoir from there.
At present, 19 tmcft of water
has been allocated from the Cauvery and the BWSSB has the capacity to supply
1,400 MLD of water from all the five Cauvery drinking water projects. The
available water is expected to meet the city’s demand till 2015
Is the water in Hesarghatta a
sign for urban planners that all is not lost and that there is still hope for
reviving the lakes and water bodies in and around Bangalore . The answer is yes and it is high
time that the Government and urban planners launched along term plan involving
people, Government agencies and NGOs to bring back water naturally to
habitations.