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The
benefits of the Navagam Dam as assessed by the Khosla Committee
are as follows:
- In
ratio of 15.80 lakh hectare (39.4 lakh acres) in Gujarat
and 0.4 lakh hectares (1.00 lakh acres) in Rajasthan. In
addition, the Narmada waters when fed into the existing
Main canal system would release Mahi water to be diverted
on higher contour enabling additional irrigation of 1.6
to 2.0 lakh hectares (4 to 5 lakh acres) approximately in
Gujarat and 3.04 lakh hectares (7.5 lakh acres) in Rajasthan.
- Hydro
Power generation of 951 MW at 60% LF in the mean year of
development and 511 MW on ultimate development of irrigation
in Gujarat, Madhya Pradesh, Maharashtra and Rajasthan.
The Khosla
Committee stressed an important point in favour of high Navagam
Dam, namely, additional storage. They emphasized that this
additional storage will permit greater carryover capacity,
increased power production and assured optimum irrigation
and flood control and would minimize the wastage of water
to the sea. The Khosla Committee also observed that instead
of higher Navagam Dam as proposed, if Harinphal or Jal Sindhi
dam were raised to the same FRL as at Navagam, the submergence
would continue to remain about the same because the cultivated
and inhabited areas lie mostly above Harinphal while in the
intervening 113 km (70 miles) gorge between Harinphal and
Navagam, there is very little habitation or cultivated areas.
The Khosla
Committee rejected the proposal of Maharashtra Government
that the Narmada canal should take off at +185/190 from Navagam
dam FRL 210 on the ground that it would be wasteful to use
power for lifting of water when flow irrigation can easily
be provided with the canal offtaking at +300.
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