interlinking of rivers
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shruti vimal
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21-02-2010, 12:24 PM

i need complet info
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25-08-2010, 10:08 PM

we are greatfull for ur work,
can u pls send me details of this report.
seminar surveyer
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28-10-2010, 05:30 PM

Interlinking of Rivers:
Why it won’t work
South Asia Network on Dams, Rivers & People

Stated objectives

To take water from surplus to deficit areas
To solve the problems of ALL drought and floods permanently
President on Aug 14, 2005 address to the nation: “I feel that it has the promise of freeing the country from the endless cycle of floods and droughts. “

Stated Benefits

Flood Control (40 m ha area and 260 m people saved from floods that leads to damages of Rs 2400 crore/year)
Drought proofing (86 m people in 14 states, 116 districts saved)
Relief of 1200 crore per year from floods/ drought damages
Irrigation: 35 m ha
Hydropower generation 34 000 MW installed capacity
Foodgrains production: 400 m t by 2020
70 lpcd water to every citizen

List of proposed Links

Peninsular Component

Mahanadi (Manibhadra)– Godavari (d/s)
Godavari (Inchampalli) – Krishna (Nagarjunsagar)
Godavari (Inchampalli Low Dam) – Krishna (Nagarjunsagar Tail Pond)
Godavari (Polavaram) – Krishna (Vijaywada)
Krishna (Almatti) – Pennar
Krishna (Srisilam) – Pennar
Krishna (Nagarjunsagar) – Pennar (Somasila)
Pennar (Somasila) – Cauvery (Grand Anicut)
Cauvery (Kattalai) – Vaigai – Gundar
Ken – Betwa
Parbati – Kalisindh – Chambal
Par – Tapi – Narmada
Damanganga – Pinjal
Bedti – Varda
Netravati – Hemavati
Pamba – Achankovil – Vaippar

Himalayan Component

Kosi – Mechi
Kosi – Ghagra
Gandak – Ganga
Ghagra – Yamuna
Sarda – Yamuna
Yamuna – Rajasthan
Rajasthan – Sabarmati
Chunar – Sone Barrage
Sone Dam – Southern Tributaries of Ganga
Brahmputra – Ganga (MSTG)
Brahmputra – Ganga (JTF) (ALT)
Farakka – Sunderbans
Ganga – Damodar – Subernrekha
Subernrekha – Mahanadi

Main Features

30 River Links
Involving 37 Rivers
How much additional water? 300 BCM (President of India speech on May 11, 2005)
No of reservoirs: 60 (Rainer Horig)
Estimated cost: Rs 5 60 000 crores
Estimated submergence
1 675 000 ha (Rainer Horig: 625 000 ha for canals and 1 050 000 ha for reservoirs)
Estimated displacement:
0.45 M (official document)
3.47 M (Rainer Horig)

Some basic Questions

Is the need for the ILR established?
Has it been established if some basins are surplus or deficits?
Definitions of Surplus and Deficit
Is any basin really water surplus?
Question on hydrologic viability
Is the feasibility of the proposal established?
Is the Optimality of the proposal established? Is it the least cost option?
Has the social, environmental viability been established?
Is the economic and financial viability of the project and implimentation established?
Is ILR feasible in current constitutional set up?
Is the project and implimentation desirable?

Can ILR solve flood “problem”?

According to President (speech on 110505) flood affects 8 major basins, 40 m ha and 260 m people
ILR is to have Lined Canals with 1:3,000 to 1:5,000 slope or 0.33 to 0.20 m per km. Maximum flow velocity 2 m/s. A 100 m wide & 10 m deep lined canal can carry about 1,000 cumecs.

1,000 (2.0%)

1,500 (2.5%)

Water to be diverted through ILR canal(cumecs)

Average flood discharge(cumecs)

(Figures thanks to SG Vombatkere, ILR figures from official website:

ILR can clearly not help solve flood problem

What about these floods of 2005, Mr President?
The Central Gujarat region that experienced serious floods were to receive MORE water from Paar-Tapi Narmada Link proposal.
Mumbai that experienced unprecedented floods was to receive more water from Damanganga Pinjal link proposal.
The Krishna basin areas of Maharashtra and Karnataka were to receive more water from other basins.
The ILR could have done nothing about the floods in Sutlej basin.
And what about the floods of Cauvery basin in October 2005?

What do experts say about ILR and Floods?
Dr. Bharat Singh, Professor Emeritus at the Water Resources Development Training Centre at the IIT, Rourkee, and Member of the National Commission for Integrated Water Resources Development Plan (1996-99), has said, “any water resources engineer will immediately discard the idea of the inter-linking of rivers as a flood control measure” (A big dream of little logic, The Hindustan Times, 9 March 2003).
John Bricoe, Senior Water Resources Expert of the World Bank has said, "River linking per se will do little to reduce flood damage since the size of the link canals would usually be miniscule compared to flood flows." Junaid Ahmad, Senior Manager, Social Development, World Bank was also said ILR won’t help flood problems.

Can ILR help the drought areas?

According to President (speech on 110505) 86 m people, 14 states and 116 districts are affected by drought annually
Can ILR benefit all drought prone areas
YES says President of India
NO if you care to look at the map and topography
Do we have other options for these areas?
Do we have evidence that such options can work?
Hundreds of examples (e.g. Alwar, Ralegaon, Sukhomajri, many others)
Have these options been explored?

Links will consume, and not generate power

Ganga-Subarnarekha (G-S) 60 m
Subarnarekha-Mahanadi (S-M) 48 m
Godavari-Krishna (G-K) 116 m

Need for 3,400 MW of dedicated power generation

[Source : ]

Some Social Impacts

Dams: Submergence, displacement (see earlier slide)
The link canals, “will be 50 - 100 m wide and more than 6 m deep.” Total canal length 14,000 km. Land for canals alone at least 2,100 sq km (210,000 ha). (
Downstream areas: Drying up of rivers, destruction of biodiversity, increase of salinity ingress, death of fisheries and fisherfolks’ livelihoods, stoppage of groundwater recharge
Deforestation: destruction of livelihood for surrounding population, large number of environmental impacts
Loss of opportunity of development for the deprived people
Permanent loss of rivers and environmental resources

Poor Quality studies of NWDA

FR has details of only three of them

impactedParbati Kalisindh Chambal Link includes ten dams

However, FR says there will be no impact on the wildlife
KBL FR agrees substantial portion of Panna Tiger Reserve would be
When latest figures are available

KBL FR has population figures based on 1981 population and cost figures based on 1995 costs
FR has details of only one dam

Ken Betwa Link proposal includes five dam proposals

MP and Maharashtra disagree
Tapi has surplus water
Gujarat does not agree
Damanganga water can be exported to Pinjal

AP says it no water to export

Godavari is surplus basin
Orissa says it has no water to export

Mahanadi is surplus basin
Ground reality/ discrepancy
NWDA claim

Ken Betwa Link FR

When Ken has floods, so has Betwa, when Betwa faces water scarcity, so does Ken. Both are part of Bundelkhand.
Use of wrong, outdated and manipulated data to prove that Ken is Surplus and Betwa is deficit basin.



Cultivable land in Upper Basin

3854.5 mcm

(-)2427 mcm

Water Export(+) or Import(-)
(-)1762 mcm

5085 mcm

Surplus (+) / deficit (-)

5200 mcm

Projected water required to irrigate 1 ha

6157 cu m
5327 cum

Water required to irrigate 1 Ha



Irrigable land in Upper basin



Cultivable land


UP has strong objections

Principal Secretary (Irrigation),UP has said in official meeting, “Ken Basin is not a surplus basin and if water is transferred from this basin there might be unrest in the Budelkhand region.”
“The area presently irrigated south of Lalitpur and Jhansi districts will get affected dur to KB Link project and implimentation.”
“The investment made by UP on Rajghat and Matatila dam will become waste”
“The hydropower generation of Rajghat and Matatila Power Houses would be hampered”

Parbati-Kalisindh-Chambal Link

Totally Ten dams are planned as part of this link, but info of only three included in the FR
Socio-Economic and Environmental impacts study yet to be done and no information about this in the FR
17 308 ha will be submerged in three dams as given in FR. For the other 7 dams, about 21 800 ha to be submerged. In addition, at least 3 500 ha land will be required for canals
Social impacts based on 1991 census figures in 2005
FR failed to establish the need for the PKC link

Salient features of Polavaram

12x80 MW installed capacity

436792 Ha

Annual irrigation
291114 Ha

Net Area to be irrigated
323396 Ha

Irrigation: Culturable command area

582.57 TMC


274.57 TMC

Godavari Delta demand

Demands of Orissa
1.5 TMC

Demands of Chhattisgarh
23.44 TMC

Water supply to Vizag
193.36 TMC

Irrigation: LMC & RMC

84.7 TMC (incl evaporation)
Water Utilisation; Diversion to Krishna

75.2 TMC

Live storage

194.6 TMC (5511 MCM)
Gross storage at FRL
41.15 m


45.72 m

Reservoir data: FRL

80170 MCM

75% dependability
Available runoff at Polavaram dam site (Assessed by NWDA from computed series of 1951-52 to 1980 –81

102000 cumecs
Design flood

306643 sq km
Catchment area
1023 mm

Hydrology: Rainfall

Near Polavaram village in W Godavari dist, 42 km u/s of the existing Cotton Barrage

Location of Dam

Polavaram: Serious implications

Submergence: 276 villages, over two lac people including villages in Orissa and Chhatisgarh, mostly adivasi population
Human Rights violations
Public Hearing violations
EIA violations
No R&R plan
Submergence of deposits of Chromite, graphite, iron ore and coal bearing area
3 705 ha Forest land under submergence
Submergence of parts of Papi Hills WLS
Environmental clearance under suspicious circumstance
Environmental clearance without forest clearance

National Commission about ILR-1


“The Himalayan Component data are not freely available but on basis of published information it appears that this component may not be feasible for the period of review up to the year 2050.” (Executive Summary, pp (ix))
Further it says about the Himalayan links, “the costs of construction and environmental problems would be enormous. These links should only be taken up if and when they are considered unavoidable in national interest.” The Commission also noted, “On the basis of published information, the commission is of the view that the Himalayan component would require more detailed study using systems analysis techniques.” (p 187-88)

National Commission about ILR-2


“As regards east flowing peninsular rivers, the studies indicate that based on mean annual flows except for Krishna (if irrigation intensity is adopted at a rather high 45 %), Cauvery and Vaigai, the balances are positive in other cases. The shortage in Cauvery is 12 % of gross demand and that in Vaigai 16 %. These shortages result from increasing the present irrigated area to 1.4 times in case of Cauvery and 1.6 times in case of Vaigai and assuming return flows at 60 % of the imbalance. In case the return flow is taken as 80 % of the imbalance, there is no shortage in Krishna and those in Cauvery and Vaigai are reduced to 5 and 8 % respectively. Thus, there seems to be no imperative necessity for massive water transfer. The assessed needs of the basins could be met from full development and efficient utilization of intra-basin resources…” (Executive Summary, pp (ix))
Par-Tapi-Narmada Link proposal: “Taking the entire system, the cost of water delivered is high and can hardly be borne by the farmers at prevailing agricultural prices. The irrigation rates may have to be very heavily subsidized which is not in conformity with current thinking. It is felt that these links should be deferred till the impact of the SSP is seen and need for additional water is clearly established.”
Netravati-Hemavati link: “The cost is rather high due to requirement of lift.”

Some Eminent persons on ILR:

Bharat Singh: “There really seems to be no convincing argument or vital national interest which can justify undertaking this mammoth undertaking”.
Jairam Ramesh, Member of Parliament said in a Short Duration Debate in Parliament on July 26, 2005, “To imagine that we are going to be able to solve our annual problems of flood and drought by a massive programme of inter-linking of rivers, in my view, there would be no greater calamity than massive inter-linking of rivers.”

Do we have options?

Flood Management
Drought Management
Water Supply
Food Production

Options for Power

Better performance of existing infrastructure (see next slide for performance of existing hydro)
Reduce T&D losses
End Use efficiency (pumps, CFLs)
Demand Side Management
According to former power minister, the potential in India for this is equivalent to additional installed capacity of 25 000 MW
Peak management: Most big hydro storage for peaking pwoer
Generation options: Small Hydro, wind, biomass, solar
Small hydro potential is 15 000 MW as per CEA, hardly 15% of that has been exploited
Pump storage potential in existing storage project and implimentations

Advocacy for large hydro

There is strong push for large hydro project and implimentations today, as if large hydro project and implimentations are good in themselves.
In fact installed capacity of large hydro has increased at a compound growth rate of 4.35% per annum during 1991-2005, HIGHER than all other power sub-sectors.
There is little attempt for credible assessment of performance of large hydro. How have they performed?

Diminishing Returns from Large Hydro

As can be seen from the chart here, the Million Units energy generated from large hydro project and implimentations has been almost continuously falling over the last eleven years.
The fall from 1994-5 to 2004-5 is huge 31%.
There are many reasons for this, use of increasing large hydro to provide peaking capacity is surely not one of them to the best of our information.

Monsoon above normal in majority of these years
87 %
100 %

105 %

81 %
91 %
92 %
96 %
105 %

102 %

103 %

100 %

110 %

Monsoon Rainfall

What is going on?

Role of

President of India
Supreme Court of India
WB, other international forces
NDA govt
UPA govt
States, state level politicians
Bangladesh, Nepal
Academics, experts
Communities and Civil Society



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