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Welcome
Presentation on diversion of west flowing streams from
the upper reaches of Western ghats near Sakleshpura,
Hassan...
The Project
2

E I Technologies Pvt. Ltd.

Scheme for diversion of flood water from selected streams
near Sakleshpura (Wes...
Introduction
3



E I Technologies Pvt. Ltd.

Karnataka State having a geographical area of 1,91,976 sq.km happens to be
...
Introduction
4



E I Technologies Pvt. Ltd.

It is pertinent to note that as per statistics available, Karnataka is seco...
River basin map of Karnataka
5
No.

E I Technologies Pvt. Ltd.

River Systems

Drainage Area
1000 sq. km

1.

Godavari

2....
Drought map of Karnataka
6

2/3rd of Geographical area of Karnataka
State is under arid/semi arid conditions
and stand 2nd...
Yield of Rivers in Karnataka
7

E I Technologies Pvt. Ltd.
Drainage Area

No.
1.
2.
3.
4.
5.
6.
7.

River Systems

1000
sq...
Plight of People & Quality of Water
8



E I Technologies Pvt. Ltd.

Incidentally, all the four Districts fall under the ...
Efforts by GoK & Initiatives
9



E I Technologies Pvt. Ltd.

Government of Karnataka has earlier initiated several propo...
Present Proposal
10



E I Technologies Pvt. Ltd.

Diversion of surplus flood waters from upper reaches of Yettinahole,

...
Present Proposal
11



E I Technologies Pvt. Ltd.

On detailed study and evaluation, some of the streams which are origin...
Streams identified for harnessing
12

E I Technologies Pvt. Ltd.

No. Name of the Elevation
stream
(m)

1 Yettinahole
2 Ye...
Streams identified for harnessing
13

E I Technologies Pvt. Ltd.

No. Name of the Elevation Catchment
stream
(m)
area
(Sq ...
Harnessing West Flowing streams
14

E I Technologies Pvt. Ltd.

It is difficult to harness the entire water available in W...
West Flowing River – Proposed Scheme
15




E I Technologies Pvt. Ltd.

Extent of Watershed Area in Western Ghats of Ka...
Scheme at a glance
16

E I Technologies Pvt. Ltd.



The present scheme envisages the following:-



It is proposed to h...
Scheme at a glance
17



E I Technologies Pvt. Ltd.

The pipeline will be routed parallel to existing corridors in order ...
Scheme at a glance
18



E I Technologies Pvt. Ltd.

From the reservoir two raising mains have been proposed one to
Chikk...
Index map – Diversion scheme within western Ghats
19
19
Index map of the Scheme
20

E I Technologies Pvt. Ltd.

SHIMOGA

A.P

CHITRADURGA

CHIKBALLPUR
UDUPI
TUMKUR
CHIKMAGLUR

HA...
Salient features
21

E I Technologies Pvt. Ltd.

No

Particulars

Scheme

1

Total combined yield in TMC

24.01

2

Catchm...
Conclusion
22



E I Technologies Pvt. Ltd.

The scheme envisaged happens to be the best option available for the
Governm...
Conclusion
23



E I Technologies Pvt. Ltd.

The said scheme of diverting 24.01 TMC of surplus water from Yettinahole
and...
E I Technologies Pvt. Ltd.

Discussions
25

Thank You
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Yettinahole Project - Diverting west flowing water to an arid land

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This project seeks to divert water from west flowing rivers to semi arid Karnataka

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  • Good presentation , for awareness of people with regard to meager quantity of water planning to be diverted and very meager forest area of 20 hectares are going to be used .
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Yettinahole Project - Diverting west flowing water to an arid land

  1. 1. Welcome Presentation on diversion of west flowing streams from the upper reaches of Western ghats near Sakleshpura, Hassan district E I Technologies Pvt. Ltd.
  2. 2. The Project 2 E I Technologies Pvt. Ltd. Scheme for diversion of flood water from selected streams near Sakleshpura (West) to provide drinking water to drought prone areas, which includes selected taluks of Tumkur, Chitradurga, Bangalore rural and north besides Kolar & Chikkaballapura districts (East)
  3. 3. Introduction 3  E I Technologies Pvt. Ltd. Karnataka State having a geographical area of 1,91,976 sq.km happens to be the eighth largest State in India with a population of 52.85 millions as per 2001 census. It is blessed with major perennial rivers such as Godavari, Krishna, and Cauvery besides 13 West flowing rivers.  The intensity of rainfall across the State varies from 400 mm in the Eastern and Central area to more than 6000 mm in Western Ghats. Scanty and erratic rainfall in the Eastern and Central Karnataka has resulted in the area becoming gradually drought prone.
  4. 4. Introduction 4  E I Technologies Pvt. Ltd. It is pertinent to note that as per statistics available, Karnataka is second only to Rajasthan when drought prone areas are considered.  Out of several districts, which are facing acute drinking water shortage besides underground water becoming polluted, Bangalore Rural, Tumkur, Kolar and Chikkaballapur happens to be the worst affected and the ground water in some of these places has fluoride content much in excess of permissible limit.
  5. 5. River basin map of Karnataka 5 No. E I Technologies Pvt. Ltd. River Systems Drainage Area 1000 sq. km 1. Godavari 2. % 4.43 2.31 Krishna 113.01 58.93 3. Cauvery 36.13 18.84 4. North Pennar 6.94 3.62 5. South Pennar 3.76 1.96 6. Palar 2.97 1.55 7. West Flowing Rivers 24.53 12.79 191.77 100 Total
  6. 6. Drought map of Karnataka 6 2/3rd of Geographical area of Karnataka State is under arid/semi arid conditions and stand 2nd only to Rajasthan in the country in terms of its drought prone areas (SOURCE dmc.kar.nic.in)
  7. 7. Yield of Rivers in Karnataka 7 E I Technologies Pvt. Ltd. Drainage Area No. 1. 2. 3. 4. 5. 6. 7. River Systems 1000 sq. km Godavari 4.43 Krishna 113.01 Cauvery 36.13 North Pennar 6.94 South Pennar 3.76 Palar 2.97 West Flowing Rivers 24.53 Total 191.77 Estimated Average annual yield % MCM TMC 2.31 58.93 18.84 3.62 1.96 1.55 12.79 100.00 1415 27451 10980 906 56600 97352 50 970 388 32 2000 3440
  8. 8. Plight of People & Quality of Water 8  E I Technologies Pvt. Ltd. Incidentally, all the four Districts fall under the Cauvery, Palar and Pennar basins, but there is acute scarcity in availability of Drinking water, resulting in exploitation of underground water to a great extent. The water table has reached alarming depths of 305 m to 427 m (1000 to 1400 ft).  Quality of water being used especially in the Districts of Chikkaballapura and Kolar are contaminated. Since there are no options, the people are using the same water and getting affected by several water borne diseases, due to the presence of harmful salts like Fluorides, Nitrates etc.
  9. 9. Efforts by GoK & Initiatives 9  E I Technologies Pvt. Ltd. Government of Karnataka has earlier initiated several proposals to mitigate the drinking water problem and to improve the quality. However, the projects implemented have not met the required results since sustainability and assured quantity of water is not guaranteed.  This has resulted in identifying an independent source which is free from Interstate Dispute and at the same time can act as a sustainable source. Such source is the West Flowing Streams.
  10. 10. Present Proposal 10  E I Technologies Pvt. Ltd. Diversion of surplus flood waters from upper reaches of Yettinahole, Kadumanehole, Kerihole and Hongadahalla streams by lifting and conveying it to east to benefit Kolar, Chikkaballapura, Bangalore (Rural) and Tumkur Districts. Following table reveals the beneficiary statistics in the above districts. Sl.No 1 2 3 4 Total Population as per Census, Name of the Benefiting District 2011 Area in sq.km Population Growth Bangalore (Rural) 9,87,257 2,239 16.02% Tumkur 26,81,449 10,598 3.74% Kolar 11.04% 15,40,231 4,012 Chickballapura 12,54,377 4,208 9.17%
  11. 11. Present Proposal 11  E I Technologies Pvt. Ltd. On detailed study and evaluation, some of the streams which are originating at the highest level close to Sakhleshpura in the Western Ghats i.e. Yettinahole, its tributaries and other streams have been identified as most suitable source. The streams that have been proposed to be harnessed are listed below. 1. 2. 3. 4. 5. Yettinahole Yettinahole Tributary-1 Yettinahole Tributary-2 Kadumane hole – 1 Kadumane hole - 2 6. Yettinahole lower reach 7. Kerihole 8. Hongadahalla hole
  12. 12. Streams identified for harnessing 12 E I Technologies Pvt. Ltd. No. Name of the Elevation stream (m) 1 Yettinahole 2 Yettinahole Tributary - 1 3 Yettinahole Tributary– 2 4 Kadumane hole-1 5 Kadumane hole – 2 Catchment area (Sq Km) Yield (June to November) TMC Divertible yield and dependability (June to November) TMC 50% 90% 75% 50% 7.99 10.15 10.89 11.91 1.18 800 810 48.80 7.20 90% 75% 6.08 6.75 0.90 1.00 850 9.80 1.22 1.36 1.60 900 13.80 1.72 1.91 2.26 950 7.50 0.93 1.04 1.23 87.08 10.85 12.06 Total= 14.26 10.15 10.89 11.91
  13. 13. Streams identified for harnessing 13 E I Technologies Pvt. Ltd. No. Name of the Elevation Catchment stream (m) area (Sq Km) 6 7 8 Kerehole Yettinahole down stream Hongada halla Yield (June to November) TMC 75% 3.35 1.61 Divertible yield and dependability (June to November) TMC 50% 90% 75% 50% 3.97 3.90 4.16 4.42 1.90 7.44 8.81 760 770 24.30 11.60 90% 3.02 1.45 730 60.20 6.70 96.06 183.14 11.17 12.40 14.68 10.27 22.02 24.46 28.94 20.42 Total Total 6.37 6.88 7.68 11.04 21.93 12.10 24.01 The total divertible yield at 50% and 75% dependability will be 24.01 TMC and 21.93 TMC respectively.
  14. 14. Harnessing West Flowing streams 14 E I Technologies Pvt. Ltd. It is difficult to harness the entire water available in Western Ghats due to  Environmental constraints  Presence of Western Ghats barrier which is quite high.  Engineering challenges  Economic viability Hence , an effort has been made to divert only a meager percentage of water that too from the upper reaches of the Western Ghats close to the plateau.
  15. 15. West Flowing River – Proposed Scheme 15    E I Technologies Pvt. Ltd. Extent of Watershed Area in Western Ghats of Karnataka – 26,390 Km2 Available Catchments – 13 Present Scheme considers tapping streams which are originating from upper reaches of Western Ghats near Sakleshpur having an elevation above 800 m It is clear from the above schematic representation that a meager percentage of water is being planned to be diverted from West to East for the purpose of meeting the drinking water requirement in the drought prone areas in the present scheme.
  16. 16. Scheme at a glance 16 E I Technologies Pvt. Ltd.  The present scheme envisages the following:-  It is proposed to have simple diversion structures across the stream which will have a capacity to hold the water for a maximum of about one hour and keeping the water level restricted within the flanks of the streams.  A suitable intake structure and lifting arrangements will be planned on the foreshores in order to lift the water only during peak monsoon / floods and for the rest of the time the water will be allowed to flow.  The water from the pump house will be conveyed and lifted through dedicated raising main (pipes) which will be buried under the ground.
  17. 17. Scheme at a glance 17  E I Technologies Pvt. Ltd. The pipeline will be routed parallel to existing corridors in order to minimize the opening of the new corridors for laying of these pipelines.  The Raising mains will be taken from the intake structure up to Haravanahalli near Sakleshpura beyond which it is planned to have a gravity canal (233 km) to convey the water up to Tumkur. The alignment of the canal has been planned along the ridge line bifurcating the Cauvery and Krishna basins.  A raising main for a length of 8.1 km has been planned to convey the water to a storage Reservoir, near Devarayana Durga, with a capacity of about 10 TMC.
  18. 18. Scheme at a glance 18  E I Technologies Pvt. Ltd. From the reservoir two raising mains have been proposed one to Chikkaballapura (88.2 km) and other to Kolar (55.9 km) to feed MI Tanks in the respective Districts. Cost  Based on the line estimate that has been prepared considering the general alignment that has been envisaged (as explained above) the preliminary costing works out to about Rs.8323.50 crores for diverting about 24 TMC of water. In other words, the cost of diverting the 1 TMC of water will be about Rs. 346.81 crores.
  19. 19. Index map – Diversion scheme within western Ghats 19 19
  20. 20. Index map of the Scheme 20 E I Technologies Pvt. Ltd. SHIMOGA A.P CHITRADURGA CHIKBALLPUR UDUPI TUMKUR CHIKMAGLUR HASSAN KOLAR MANGALORE MANDYA T.N
  21. 21. Salient features 21 E I Technologies Pvt. Ltd. No Particulars Scheme 1 Total combined yield in TMC 24.01 2 Catchment area in Sq.Km 176.74 3 Length of Garland canal /pipeline within Western Ghats in Km 4 Extent of area to be acquired in Ha 81.6 Km (Pipeline) 192 (30 m width) i) In Forest (Ha) 20 ii) Others (Ha) 172 5 Accessibility Good 6 Ease of Construction Easy 7 Time for completion 3 years 8 Cost of the Project in crores 8323.50 9 Cost per TMC in crores 346.81
  22. 22. Conclusion 22  E I Technologies Pvt. Ltd. The scheme envisaged happens to be the best option available for the Government of Karnataka to mitigate the drinking water problems being faced by the people in the eastern plateau especially Kolar and Chikkballapur districts.  In order to implement this scheme , detailed investigations followed by a comprehensive DPR is necessary and the same is already initiated by Govt. of Karnataka .  The present scheme envisaged by KNNL, that of diverting surplus water from Yettinahole and other streams near Sakleshpura can be taken up immediately as the investigations and preparation of DPR could be completed early.
  23. 23. Conclusion 23  E I Technologies Pvt. Ltd. The said scheme of diverting 24.01 TMC of surplus water from Yettinahole and other streams is sustainable , free from tribunals, least effect on ecology and environment of Western Ghats, and cause least effect to the downstream commitments.  The scheme of diverting surplus water from Yettinahole can be taken up and completed within Five year span thereby mitigating the drinking water problems of Kolar and Chikkaballapura districts within a short time.
  24. 24. E I Technologies Pvt. Ltd. Discussions
  25. 25. 25 Thank You

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