CE Main Canal

Chief  Engineer (Main Canal),SSNNL,Gandhinagar

 This office is currently in charge of Operation & Maintanance of Narmada Main Canal. Narmada Main Canal is offtaking from pond No. 4 of Sardar Sarovar Dam at Navagam near Kevadia Colony. Narmada Main Canal is a contour canal. It is the biggest lined irrigation canal in the world. It is about 458.318 km long up to Gujarat-Rajasthan border. The canal extends further in the state of Rajasthan to irrigate areas in Barmer and Jhalore districts of Rajasthan.The Main Canal is lined with plain cement  concrete to minimise seepage losses to attain higher velocity and to control the water logging in future.The lining work is carried out with the mechanized pavers. Such a large scale paving of concrete lining is done for the first time in India.

 The Main Canal in its journey has to negotiate several water streams, rivers, roads, railways etc.This is possible by constructing appropriate structure on the canal. In all, there are 630 structures of various types are constructed on the Narmada Main Canal. Narmada Main Canal is completed up to 458.318 km and water has been flowing throghout it right upto the state of Rajasthan.

 The work of Operation & Maintanance of Narmada Main Canal ch. 0 to 458.318 km is alloted to below mentioned three division offices under the Superintending Engineer(O&M), SSNNL, Gandhinagar.

 

Sr.No.

Name of division

Reach of NMC in km.

1

Narmada  Project  Main  Canal

Dn.No.1, Vadodara

Ch.0 to 144.500 km

2

Narmada  Project  Main  Canal

Dn.No.2, Gandhinagar

Ch.144.500 to 293.501 km

3

Narmada  Project  Main  Canal

Dn.No.3, Chanasma

Ch.293.501 to 458.318 km

 

Features of Narmada Main Canal:

 1.Full supply level (F.S.L.) at H.R.:- 91.44 m (300 ft.)

 2.Length up to Gujarat-Rajasthan border: - 458.318 km

 3.Base width in head reach:- 73.10 km

 4.Full supply depth (F.S.D.):- 7.60 m

 5.Design discharge capacity

    1. At head:-1133 cumecs (40,000 cusecs)

    2. At Gujarat Rajasthan border:-74.55 cumecs (2600 cusecs)

 6.Details showing the total No. of Structures on Narmada Main Canal are as under.

Sr. No.

Type of Structures

Nos. of Structures

0 to

144.500 km

144.500 to

293.501 km

293.501 to

458.318 km

Total

 1

 Aqueduct

 5

 0

 0

 

2

 Syphon Aqueduct

 7

 0

 0

 7

3

 Drainage Syphon

59

 52

 65

 176

4

Canal Crossing

17

8

0

25

5

Railway Crossing

5

8

3

16

6

Supper Passage

0

1

1

2

7

Head Regulator (HR)

21

26

26

73

8

Escape

4

8

3

15

9

Bridge

69

96

106

271

10

CR/Bridge

9

3

7

19

11

Cross Regulator (CR)

4

2

0

6

12

CR/Canal Syphon

0

7

6

13

13

Canal Syphon

1

0

1

2

 

Total

201

211

218

630

  1. Organisation Chart of C.E (Main Canal)
  2. Index Map of NMC
  3. Districtwise,Talukawise and village wise length of NMC NMC.
  4. Major structures on NMC.
  5. HR on NMC
  6. CR on NMC
  7. Escapes on NMC
  8. Control Cabin on NMC
  9. Line diagram of NMC Reach 0 to 458.318 km
  10. Photographs of CR/HR/ESCAPE/Aquedust/CSY and control cabin.