Contents. Performance assessment-external & Internal indicators Follow-up action on Modernization activities

Transcription

1 Training for Asian Young Professionals on Performance Assessment of Irrigation Systems ( 9 th to 13 th April 2018 in Beijing, China) Experiences on performance assessment and modernization of Irrigation systems in Karnataka, India By M G Shivakumar Chief Engineer VJNL, UBP Zone, Chitradurga Water Resources Department, Karnataka, India Contents Modernization Experiences in Karnataka, India Performance assessment-external & Internal indicators Follow-up action on Modernization activities Allied modernization activities ABOUT KARNATAKA Karnataka is the Seventh largest Indian State by Area. Geographical area of the State :1,91,791 Sq. Km ( Lakh Ha.) accounting for 5.83% of the total area of the country. Cultivable Command Area of the State Net Sown Area of the State Lakh Ha Lakh Ha. Ultimate Irrigation Potential of the State from all sources : Major & Medium Irrigation Minor Irrigation Ground Water TOTAL : Lakh Ha. : Lakh Ha. : Lakh Ha. : Lakh Ha. MASSCOTE Workshops -Karnataka Almatti Lifts NLBC & NRBC VNC & TLBC Hemavathy Irrigation Potential of Lakh Ha. achieved under Major & Medium Irrigation up to March Mean annual rainfall of the State is 1,355 mm. More than 73% of this rainfall is received due to the South West monsoon. 3 1

2 IWMI3. Output per unit irrig. supply ($/cu. m.). Lam Pao, Thailand Dez, Iran Guilan, Iran Seyhan, Turkey Majalgaon, India Dantiwada, India Bhakra, India Muda, Malaysia Kemubu, Malaysia Beni Amir, Morocco Office du Niger, Mali Rio Yaqui Alto, DR Coello, Colombia Saldaña, Colombia Cupatitzio, Mexico Rio Mayo, Mexico Cam Sun, Vietnam IWMI1. Output per cropped area ($/ha). Lam Pao, Thailand Dez, Iran Guilan, Iran Seyhan, Turkey Majalgaon, India Dantiwada, India Bhakra, India Muda, Malaysia Kemubu, Malaysia Beni Amir, Morocco Office du Niger, Mali Rio Yaqui Alto, DR Coello, Colombia Saldaña, Colombia Cupatitzio, Mexico Rio Mayo, Mexico Cam Sun, Vietnam MASSCOTE application in Karnataka, India External Indicator - GLBC and Bhadra output per cropped area MASSCOTE applied to 7 large irrigation projects Around 300 engineers at various levels trained hands-on Over a million hectares command covered by MASSCOTE MASSCOTE methodology extensively field tested in Karnataka A friendly tool for all stakeholders to understand the system comprehensively Capacity building-in new concepts of canal operation & modernization Typology of irrigation systems has emerged Testing and validating MASSLIS and MASSMUS 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 BHADRA = US $ 1700 /ha GLBC US $1844/ha ch110 External Indicator - GLBC and Bhadra output per unit of water used RICE upstream the canals and along the river Dry crops at TAIL END (Land use map of Raichur district) Bhadra US $ /m 3 ch GLBC US $ 0.23/m

3 HIGH LAND PRODUCTIVITY (TLBC+VNC) 3200 $/YEAR/IRRIGATED AREA HIGH WATER PRODUCTIVITY(TLBC+VNC) 0.63 $/M3 Interventions due to MASSCOTE - Results and Impact Complete re-engineering of the whole rehabilitation package of Bennithora system Measuring devices (flumes) installed for the first time on canals Redesigning of canal offtakes and regulators in Gandorinala project for better canal operation Water reached stretches beyond 110 km upto 200 km (for first time) in Bhadra system Telemetry system of data acquisition and transmission in GLBC & 6 other projects IMPLEMENTATION STRATEGY FOR MODERNIZATION 1.The policy issues ; i. Revised approach to hydraulic equity ii. Accept the need for flexible Cropping patterns. iii. Shift from protective to productive irrigation iv. Service oriented management (SOM) and explicit IWRM v. Revisiting the concept and practices of Payment for water services 2. Improve the internal performance indicators 3. Improve the water use efficiency 4. Capacity building at all levels 5. Establishing a centre of excellence in WRD (AC-IWRM) 6. Plan for Modernization, Monitoring and Evaluation 3

4 Vision G-B An economically sustainable and equitable water delivery system which supports growth of agriculture wealth by increasing recycling and conjunctive use. Vision Bhadra A modern, economically sustainable, multi purpose water resource project maximizing agricultural output and water productivity through adoption of modern irrigation management techniques, participatory management by stake holders, greatly enhancing the quality of life of the people and economic outputs while preserving and enhancing the quality of environment. TLBC-Canal Suggestions Operation for one improvements-short Year term Allocation of water to the distributaries to be determined by installing measuring devices at initial reaches of outlets. Water to be supplied to the tail enders first Providing hand held GPS to each sub-division to measure cropped area of the individual farmer Silt removal and jungle clearance of the distributaries has to be done before start of season. Action for arresting the leakages found in some outlets, gates of escapes, certain reaches of embankments of distributaries and in aqueducts to be made Water Management to be done from tail end to upstream. Regulation of water flow in Main canal & second level and tertiary off-take points Offtake operators to be outsourced in case of in-adequate staff for water management WUCS assisted with finance and administration. TLBC-Canal Operation improvements-long term CANAL: TLBC should be covered under GIS for maintenance of canal, providing information to farmers, for tax collection. Creation of Balancing Reservoir as per topography of ground to give assured water to tail end. Automation of Canal Network system(priority - Main Canal) Some of the users are constructing big size farm ponds along distributories. They are to be properly Planned & Regulated. The reaches of the canal which are passing near public places are to be provided with RCC Cut & Cover. Provide inlets in the hillock reaches of cannal along with catch water drain Security task force should be formed to give assured quantam of water to all stakeholders FOLLOW-UP ACTION 4

5 BENNITHORA PROJECT-Measuring device on main canals BENNITHORA-Measuring device on distributary FLUME ON LBC FLUME ON RBC KEY FINDINGS AND FOLLOW-UP ACTION OF GB- RAP / MASSCOTE BUFFER Km 10 OF RBC ON BENNITHORA BENNITORA RBC KM 68 KEY FINDINGS AND FOLLOW-UP ACTION OF GB- RAP / MASSCOTE Operation cost is too high. One single management centre for two projects instead of three (30,000 Ha). In Bennitora Project, one division and three sub-divisions are shifted to other projects thereby reducing the operation cost by 26% and one sub division from Gandorinala is shifted to other project thereby reducing the cost of operation by 30% COST ANALYSIS IN % COMMUNICATION 1% TRANSPORTATION 6% OTHERS 9% ADMINISTRATIVES EXPENCES 4% STAFF 80% 5

6 BENNITHORA PROJECT Water balancing reservoirs under Bennithora Project WEIRS ON RBC AT SENSITIVE OFF-TAKES BRIDGE-CUM-BARRAGES : INDEX 1) In between Malakood-Tonasanhalli 2) Near Kalagurti Barrage 3) Near Kalahipparaga BARRAGES : Bridge-cum-barrage 1) In between Kanasur-Bennur 2) Near Hebbal. BENNITHORA PROJECT CONSTRUCION OF BRIDGE-CUM-BARRAGE ACROSS NAGOORHALLA NEAR TADKAL KEY FINDINGS AND FOLLOW-UP ACTION OF GB- RAP / MASSCOTE CONSTRUCTION OF BRIDGE / BARRAGE AT TADKAL (Km 60 of Gandorinala) FOUNDATION WORK DIVERSION 6

7 Infrastructure improvement Bhadra Modernization Bennithora: Improved service road LBC 21 km Bhadra Modernization GLBC 7

8 FLOW MEASUREMENT & TELEMETRY Flow measurement & telemetry is introduced in 6 projects; - Bhadra, - Upper Tunga, - Gondi, -VNC -Tungabhadra Canals & -Singatalur LIS. Discharge and water level measured and transmitted in real time Main canals : Transit Time Flow meters. Distributaries : Radar Type flow meters. Bhadra Right Bank Canal Telemetry Distributaries & Branch Canals have Radar Type Flow Meters Main Canals have Transit Time Type Flow Meters Allied modernization activities WATER CONSERVATION MEASURES Karnataka has initiated many water conservation measures to enhance water use efficiency, increase the area under irrigation, prevent land degradation due to water logging and salinity and to improve productivity of land and water. Micro-irrigation Modernization Tank filling schemes (drinking water & groundwater recharge) Pick-ups, Barrages, check dams SCADA & Automation-NLBC Canal System Canal top solar pv projects Dam Rehabilitation and Improvement Programme (DRIP) 32 8

9 MICRO-IRRIGATION To enhance Water Use Efficiency (WUE) in irrigation projects, a paradigm shift in the method of application of water from flood/furrow irrigation to micro-irrigation is under implementation in several projects of the State, thereby increasing the WUE to over 80% from the present 50% in flow irrigation. The projects under implementation are: 1. Upper Bhadra - 2,25,515 Ha Drip (Ongoing) 2. Singtalur LIS - 87,793 Ha Drip 3. Shiggaon LIS - 13,500 Ha Sprinkler (Implemented) 4. Ramthal LIS - 24,000Ha Drip (Implemented) 5. Koppal LIS - 1,12,000Ha Drip 6. Savanur LIS - 15,500 Ha Drip 7.Nandawadagi - 36,100 Ha Drip 7.Purigalli LIS - 10,250 Ha Drip Total - 5,24,658 Ha Shiggaon LIS Ramthal LIS Modernization-Canal improvements Sl Project Cost of the Length of canal Present status no project in modernisation in M illion (INR) Km 1 Narayanpura Left Completed Bank canal- ERM Tungabhadra left 2. bank Under progress canal 3. Kolachi RBC Under progress MODERNIZATION OF CANALS 4. Gondhi Anecut canals Under progress modernisation 5. Tunga Anecut Canals Under progress Rampura Canal NLBC Main Canal 6. Cauvery Basin a) Anecut Canals 23 Nos Completed b) Canals under reservoir completed 10 Under Progress Total 11, Plans are afoot to undertake modernisation of Malaprabha, Vijaynagar channel, Upper Mullamari and Gandorinala, Narayanapura Right bank canal, Harangi left and right bank canals, Harohalli, Bangaradoddi, Hangood series, Kanva canals, Markonahalli, Vishveshwaraiah Canal network (2 nd phase), Hebballa chennaiah, Sahukar Chennaiah, Hebballa left bank canal, Suvarnavathi Left and Right bank canals for a total length of about 2500 Kms with a estimated amount of INR Million 35 Nugu left bank Canal IBC Main Canal 36 9

10 TANK FILLING SCHEMES To meet the drinking water needs in water stressed areas and for groundwater recharge, a large number tank filling schemes are taken up. Notable among them are Details of nearing completion and ongoing works Sl Project No of tanks Present status no 1. Hiranyakeshi 22 Nearing completion 2. Tunga lift 32 Nearing completion 3. Anachi,Sankh& Bhuyyar 25 Nearing completion Sl Project No of Present status no tanks 7 1. Mambapur, Bhuthanal, Begum talab, Bubleshwar, Tidagundi & Completed Sarwad in Bijapur Dist. 2. Kaginele 23 Completed 3. Ubrani-Amrutapura 146 Completed 4. 6 Nos of tank filling schemes 114 completed in Cauvery Basin Completed (Kanva, Alamburu etc..) 5. Rajanahalli Completed, 3 under progress Total Yettinahole 527 Ongoing 5. Upper Bhadra LIS 367 Ongoing Nos of tank filling schemes under progress in Cauvery Basin (Chikkanandhi, Sathnur, Gandhigrama, Shriranga, Arkalgud-Ganganalu.etc ) Total Ongoing It is planned to take up about 32 tank filling schemes under which it is planned to fill up 970 Nos of tanks Tank Filling Projects in VijayapurDistrict Ubrani-Amruthapura LIS Bhutnal Tank Filling Begum Talab Tank Filling Mamdapur Tank Filling Kanva Kadapur

11 Construction of Barrage Pick-ups, check dams A large number of pick-ups, barrages and check dams are taken up for rain water harvesting SCADA AUTOMATION UNDER NLBC CANAL SYSTEM Data Centre BCB across Vedavathy River near Bageshettihalli in Hosadurga Taluk of Chitradurga District. Demand Approval Farmer Request Water demand Outlet Gate Online Information Hanumsagar pickup weir in NLBC command Chandapur Barrage across River Manjra 41 HR Gate 42 Installation of Fully Automated Integrated Gates CANAL TOP SOLAR PV PROJECTS A pilot project of Canal Top Solar Power Project of 1 MW Capacity on ARBC Main Canal is successfully completed and commissioned. 5,000 Units of power is being generated from the commissioned Solar PV Project. A 10 MW Canal Top Solar PV Project on Intake Gravity Canal of Koppal LIS is being taken up

12 Dam Rehabilitation and Improvement Programme (DRIP) Bhadra dam pointing & grouting work Major dams taken up under DRIP for rehabilitation and improvement are Almatti, Narayanapura, KRS, Hidkal, Malaprabha, Hemavathy, Bhadra, Harangi, Kabini, Karanja, Lower Mullamari and Bennethora, Etc ALMATTI DAM - Upstream pointing to Masonry Joints & Placing of the Concrete in Stilling Basin Karnataka-FAO publications Working documents on modernization workshops are published by FAO; Case study-almatti (UKP). Report31.pdf Case study-bhadra. 2.pdf Case study-gandorinala-bennitora. Case study-glbc Case study-narayanpur (UKP) ect_naryanpur.pdf Case study- Hemavathi. df THANK YOU 12