Narmada Canal

The Narmada Canal is a contour canal in Western India that brings water from the Sardar Sarovar Dam to the state of Gujarat and then into Rajasthan state. The main canal has a length of 532 kilometres (331 mi) (458 kilometres (285 mi) in Gujarat and then 74 kilometres (46 mi) in Rajasthan). It is the second longest canal in India (after the Indira Gandhi Canal) and the largest canal by water carrying capacity (40,000 cusec at source).[1] The main canal is connected with 42 branch canals providing irrigation to 2,129,000 hectares (5,260,000 acres) farmland (about 18 lakh hectares in Gujarat and 2.5 lakh hectares in Rajasthan).[1] The canal is designed to transfer 9.5 Million acre-feet (MAF) (approx. 11.7 Billion cubic metre (BCM)) water annually from the Narmada Basin to areas under other river basins in Gujarat and Rajasthan. (9 MAF for Gujarat and 0.5 MAF for Rajasthan).[2]

Narmada Main Canal
Sardar Sarovar Canal
Sardar Sarovar Canal with flow.jpg
View of the Kutch Branch Canal of Narmada Main Canal paved with concrete lining, meandering through northwestern India.
Location
CountryIndia
StateGujarat, Rajasthan
Physical characteristics
SourceSardar Sarovar Dam
 • locationKevadia, Narmada district, Gujarat, India
 • coordinates21°49′49″N 73°44′50″E / 21.83028°N 73.74722°E / 21.83028; 73.74722
Length532 km (532,000 m)
Width 
 • minimum10.3 m (34 ft) Width at tail
 • maximum76 m (249 ft) Base Width at source
Depth 
 • maximum7.6 m (25 ft) depth at source
Discharge 
 • minimum70.79 cumec at tail (Gujarat-Rajasthan Border)
 • maximum1132.66 cumec (40000 cusec) at source
Basin features
River systemNarmada
Aforementioned information retrieved from the Narmada Control Authority[1]

Soon after the completion of the construction project, the Narmada canal was inaugurated on 24 April 2008.[3] It has carrying capacity of 40,000 cubic foot per second (cfs or cusec) at its head in Navagam and is decreased to 2,600 cusecs at Sanchore. On the way, Narmada main canal crosses many rivers and water bodies. The main canal itself can hold 220 MCM (Million cubic metre) of water at full supply depth. It is designed not only for the water supply but also the storage of water to improve the response time of the system.[4]

Irrigation in GujaratEdit

The main canal has 38 branches in Gujarat.

Saurashtra Branch CanalEdit

Saurashtra Branch is the largest of these branches which has a length of 104.46 km and discharge of 15,002 cubic feet per second (424.8 m3/s). The Saurashtra branch canal has 3 mini hydroelectricity plants to utilize the energy from water at the fall of 52 metres (171 ft) in first 59 km. Subsequently, in the 59 to 104.46 km span it has five pumping stations to pump the water 66 metres (217 ft) up before tailing into Bhogavo - II reservoir.[4]

Irrigation in RajasthanEdit

Although the Narmada River does not flow through Rajasthan and no area of Rajasthan falls in the Narmada basin, considerations were made to irrigate its lands with the water from the Narmada River that flows through the neighboring state of Gujarat, to encourage peasants to settle in the areas along the international border with Pakistan. After traversing 458 kilometres (285 mi) in Gujarat, the Narmada canal enters Rajasthan near Shilu in the Sanchor tehsil of Jalore.[5] The 74 kilometres (46 mi) main canal, with 9 major distributaries, serves an area of 1,477 square kilometres (570 sq mi), including 124 villages.[6] In total, it was designed to irrigate 246,000 hectares (610,000 acres) in 233 villages in Jalore and Barmer and provide drinking water to 1,336 villages.[5]

The Narmada canal has a few unique features compared to other projects:[7]

  1. Irrigation water is delivered to farmer groups, via Water Users Associations (WUA), not to individual farmers. WUAs are responsible for the operation and maintenance of field water canals.
  2. Micro-irrigation systems such as drip and sprinklers to be encouraged for efficient water usage.

Solar panelsEdit

Solar canals are being installed along a 1 kilometre (0.62 mi) pilot project section of the Sanand Branch Canal near Chandrasan village to generate 1 megawatt (1,300 hp) of electricity. The solar panels are forecast to also reduce evaporation of water from the canal by 9,000,000 litres (2,000,000 imp gal; 2,400,000 US gal) per year.[8][9]

See alsoEdit

Further readingEdit

ReferencesEdit

  1. ^ a b c "Salient Features of Sardar Sarovar Project: Narmada Main Canal System". Narmada Control Authority (NCA). Retrieved 12 March 2015.
  2. ^ "Salient Features of NWDT Award". Narmada Control Authority (NCA). Retrieved 28 November 2021.
  3. ^ "Field Visit Report: Narmada Command Project Area in Rajasthan" (PDF). Narmada Control Authority (NCA). Indore: Govt. of India. 9 May 2013. Retrieved 12 March 2015.
  4. ^ a b "Sardar Sarovar Project – The Engineering Marvel" (PDF). Sardar Sarovar Narmada Nigam Ltd. Archived (PDF) from the original on 2019-12-31. Retrieved 2020-07-12.
  5. ^ a b Parsai, Gargi (29 February 2012). "As Narmada water trickles in, life blooms in barren Jalore". The Hindu. Sanchor, Jalore. Retrieved 13 March 2015.
  6. ^ "Narmada Canal Project". Water Resources Department. Govt. of Rajasthan. Retrieved 12 March 2015.
  7. ^ "Components of Project". Sardar Sarovar Narmada Nigam Ltd. Retrieved 13 March 2015.
  8. ^ "Gujarat dedicates India's first canal-top Solar Power Project to the nation!". Narendra Modi. 23 April 2012. Retrieved 13 March 2015.
  9. ^ Khanna, Summit (7 February 2012). "Solar power cells on Narmada canal to light up rural homes". dna. Gandhinagar: Diligent Media Corporation Ltd. Retrieved 13 March 2015.