KRISHNA BHAGYA JALA NIGAM LIMITED PRELIMINARY REPORT FOR REMODELLING OF NARAYANPUR LEFT BANK CANAL AND ITS NETWORK Estimated Cost – 3060 Crores May - 2012 KRISHNA BHAGYA JALA NIGAM LIMITED (A Government of Karnataka Undertaking) PWD office Annexe, 3rd Floor, K R Circle, Bangalore – 560 001 Krishna Bhagya Jala Nigam Limited Preliminary report on Remodeling of NLBC Network under UKP Contents Chapter 1. General ...................................................................................................... 1 1.1. Engineering aspects: ............................................................................................................... 3 1.1.1. Remodelling of canal network under NLBC..................................................................... 3 1.1.2. Using Telemetry for proper measurements and data acquisition .................................... 3 1.1.3. Automation of Regulators ................................................................................................ 4 1.1.4. Land Reclamation ........................................................................................................... 4 1.2. Topography ............................................................................................................................. 5 1.3. General Climatic condition ...................................................................................................... 5 1.3.1. General ........................................................................................................................... 5 1.3.2. Rainfall ............................................................................................................................ 6 1.3.3. Temperature.................................................................................................................... 6 1.3.4. Humidity .......................................................................................................................... 6 1.3.5. Cloudiness ...................................................................................................................... 6 1.3.6. Wind ................................................................................................................................ 6 Chapter 2. Inter State Aspects ................................................................................... 8 2.1 States traversed by Krishna River ........................................................................................... 8 2.2 Interstate awards of Krishna Water Dispute Tribunal .............................................................. 8 Chapter 3. Survey and Soil Investigation .................................................................. 9 3.1 Background ............................................................................................................................. 9 3.2 Observations ........................................................................................................................... 9 Chapter 4. Hydrology ................................................................................................ 11 Chapter 5. Irrigation Planning .................................................................................. 14 5.1 Proposed cropping pattern as per original report .................................................................. 14 5.2 Crop Water Requirement ...................................................................................................... 15 Chapter 6. Planning for other intended benefits .................................................... 16 6.1 Flood control ......................................................................................................................... 16 6.2 Power .................................................................................................................................... 16 6.3 Drinking water and Industrial requirements ........................................................................... 16 Chapter 7. Cause and remedial measures .............................................................. 17 7.1 Engineering aspects: ............................................................................................................. 17 7.1.1 Diagnosis of the problems and analysis ........................................................................ 17 7.1.2 Defects in the design ..................................................................................................... 17 7.1.3 Defects in Construction ................................................................................................. 18 Krishna Bhagya Jala Nigam Limited Preliminary report on Remodeling of NLBC Network under UKP 7.1.4 Defects in Operation and Maintenance ......................................................................... 18 7.1.5 Defects in Cross Drainage ............................................................................................ 19 7.1.6 Remedial measures ...................................................................................................... 19 7.2 Remodelling of canal network under NLBC .......................................................................... 19 7.2.1 Narayanpur Left Bank Canal ......................................................................................... 19 7.2.2 Land Reclamation ......................................................................................................... 25 7.3 Non Engineering Aspects ...................................................................................................... 25 a) Involvement of Beneficiaries in the management of the project for self-sustainability under NLBC .................................................................................................................................... 25 Chapter 8. Conclusion .............................................................................................. 27 Chapter 9. Construction Organisation .................................................................... 28 8.1 . Organization setup for Remodelling works .......................................................................... 28 Chapter 10. Cost ......................................................................................................... 33 8.1 Major repairs carried out ....................................................................................................... 33 8.2 Cost estimate ........................................................................................................................ 33 Chapter 11. Benefit Cost Ratio ................................................................................... 35 Annexure - 1 ................................................................................................................ 36 Details of Canal system under NLBC ............................................................................................... 36 Narayanapur Left Bank Canal .......................................................................................................... 36 Shahapur Branch canal .................................................................................................................... 38 Mudbal Branch canal ........................................................................................................................ 39 Jewargi Branch canal ....................................................................................................................... 40 Indi Branch canal .............................................................................................................................. 42 Annexure - 2 ................................................................................................................ 44 Krishna Bhagya Jala Nigam Limited Preliminary report on Remodeling of NLBC Network under UKP List of Figures Figure 7.1:- Slope failure, damage to lining/leakage at structures of NLBC Conditions of Canals ............... 21 Fig 7.2 – At Ch: 40+325 Km ........................................................................................................................ 21 Fig 7.3 – At Ch: 41+470 Km ........................................................................................................................ 21 Fig 7.4 – At Ch: 42+700 Km ........................................................................................................................ 21 Fig 7.5 – At Ch: 47+500 Km ........................................................................................................................ 21 Fig 7.6 – At Ch: 46+300 Km ........................................................................................................................ 21 Fig 7.7 – At Ch: 51+460 Km ......................................................................................................................... 21 Fig 7.8 – At Ch: 53.120 Km ......................................................................................................................... 22 Fig 7.9 – At Ch: 53+360 Km ........................................................................................................................ 22 Fig 7.10 – At Ch: 65+490 Km ....................................................................................................................... 22 Fig 7.11 – At Ch: 66+800 Km ......................................................................................................................