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Hemavathy. Karnataka Govt. should implement Netravati-Hemavati link to save Kaveri.

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Hemavathy, Bangalore's last hope, also dries up

 


Two of the existing three jack wells on the Hemavathy backwaters installed by Hassan municipality have gone dry, officials are a worried lot, as they have no alternative to provide drinking water.
The water that Bangalore was depending on to tide over the shortage till the South-West monsoon is almost gone.  The live storage at Hemavathy reservoir has been wiped out.
Some water is being released to the big cities of Bangalore and Mysore from the dead storage. But Hassan has been largely denied its share.
Barely 48 hours after Chief Minister Siddaramaiah said water supply in all cities in the Cauvery basin will be normal, an official source told Express: “Pumping of water from the dead storage at Hemavathy Reservoir will be stopped from Tuesday keeping in view the supply of drinking water to Hassan city. The authorities were pumping water at the rate of 5,000 cusecs daily to be supplied to Bangalore city from the Krishnaraja Sagar Reservoir.’’
A source said around three tmc ft of water is still available at Hemavathy Reservoir. Since the level has gone beyond the dead storage,  it is very difficult to draw water, the source pointed out.
Last week, officials had dispelled fears of a crisis, saying they would draw water from the Hemavathy in case the KRS dried up.
The silver lining is that the situation at KRS appears to be slightly better. Though the live storage is still less than one tmcft, the inflow  is at the rate of 2,500 cusecs through the day due to some rain in K R Nagar and surrounding areas. Following this, officials at KRS have increased the speed of outflow towards Bangalore from the rate of 750 cusecs to 1,000 cusecs.
 Expressing unhappiness over the release of water to KRS from Hemavathy to meet the needs of Bangalore, Hassan MLA H S  Prakash said: “Instead, the government should at least give permission to install one more jack well near the dead storage to lift water for Hassan city.’’
Two of the existing three jack wells on the Hemavathy backwaters installed by Hassan municipality have gone dry. Officials are a worried lot, as they have no alternative to provide drinking water, if the third jack well goes dry. Residents have been getting water once in two days from the third jackwell.

http://newindianexpress.com/cities/bangalore/Hemavathy-Bangalores-last-hope-also-dries-up/2013/05/21/article1599533.ece?service=print

Netravati Hemavati LinkPrintable Version
 The Proposal: This link proposes to divert 188 Mcum of surplus water from Netravati basin to water short Cauvery basin to irrigate an area of about 33,813 hectares under the command of Hemavati Irrigation Project in the drought prone Tumkur, Hassan and Mandya districts of Karnataka.  In this project too, the total lift shall be of the order of 81 m, in two stages; consuming a total power of about 6 MW.  The total length of the canal is about 11 km., which includes 3 tunnels of total length of 8.4 km. 
Engineering Aspect:
 The project proposal comprises two stages. Under Stage-I, the surplus waters of Yattinhole reservoir of Netravati basin will be lifted to a height of 19.50 m to divert into Hemavati river.  Under Stage-II, the combined surplus waters of Kerihole and Hongadhallad hole reservoirs of Netravati basin will be lifted to a height of 61.31 m for diverting into Hemavati river of Cauvery basin.  The conveyance system from Yattinhole to Hemavati river is 3.54 km long (including 3.04 km long tunnel).  The interlinking tunnel from Keri hole to Hongadhallad hole reservoir is 3.98 km long.  The conveyance system from Hongadhallad hole to Hemavati river is 3.30 km long with a tunnel of 1.375 km. 
 Environmental Issue: The Yattinhole reservoir at FRL 900.00 m will submerge about 295 ha of area in Sakleshpur taluk of Hassan district, of which 78 ha is in forest land, 173 ha in cultivable land and 44 ha  under non-agricultural use.     The Keri hole reservoir at FRL 865.70 m will submerge an area of about 120 ha of which, 33 ha is forest land, 73 ha is cultivable land and 14 ha under non-agricultural use.  The third reservoir viz. Hongadhallad hole at FRL 865.70 m will submerge about 350 ha, of which 97 ha is forest land, 218 ha is cultivable land and 35 ha under non-agricultural use. No important historical monuments and archaeological structures will be coming under submergence.  The submergence area coming under these reservoirs are uninhabited and as such no population is affected due to the submergence.     


http://www.nwda.gov.in/index4.asp?ssslid=118&subsubsublinkid=42&langid=1

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