Water Use Efficiency Studies of Major Medium Irrigation Projects

Water use efficiency studies of major medium irrigation projects
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Goals. Assessment of the accompanying efficiencies.Dam Efficiency (inflow and discharge pattern)Delivery System/Conveyance efficiency.On ranch application efficiency.Drainage efficiencyIrrigation potential made

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Water Use Efficiency Studies of Major & Medium Irrigation Projects

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Objectives Evaluation of the accompanying efficiencies. Dam Efficiency (inflow and discharge design) Delivery System/Conveyance productivity. On ranch application effectiveness. Waste effectiveness Irrigation potential made & used.

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Constitution of TAC for Evaluation Chairman – Member (wp&p), CWC Vice Chairman – Commissioner (CAD&WM) MOWR. Part Secretary – Director (IPO), CWC. Individuals: Chief Engineer (PO MIO), CWC Commissioner (PP), MoWR Financial Advisor, MoWR. Dy. Official (WM), Ministry of Agriculture. Asst. Chief General, ICAR. Joint Advisor (Water Resources) Planning Commission. Part (SML), Central Ground Water Board. Boss Engineer of Concerned venture Director IP(N/S). Executive, EWV, CWC.

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Dam/Reservoir Efficiency (E R ) The Maximum live stockpiling achieved amid a year E R= ______________ Designed live stockpiling

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Delivery framework/Conveyance Efficiency (E C1 ) & water conveyance framework efficiency(E C2 ) E C1= Total water conveyance at delta to the piece of fields Water discharged at the venture head work waterway transport productivity. E C2 = Actual water conveying limit of all waterways Designed Capacity of all Canals For principle trench & Distribution-release >150 C/S. For Distribution arrange release < 150 C/S. For both lined & unlined channels. Test speaking to from head/Middle/Tail closes.

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Data to be gathered Designed conveying limit of the considerable number of waterways. Real Carrying limit of the considerable number of waterways. Leakage in different scopes of different trenches. Dissipation misfortunes in different channels.

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On ranch Application Efficiency(E f ) Water utilized by harvest to meet evapo-transpiration needs. E f = - - - - - Water Delivered to the field.

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On ranch Application productivity Data to be gathered Actual editing example, sort and scope. Weighted normal precipitation in the charge Reference evapo-transpiration in the range. Trim coefficient in regard of different products Effective precipitation in the summon. Permeation misfortunes in paddy fields. Gross, field and Net water system prerequisites.

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Drainage Efficiency (E d ) W d E d = - - (W s + R e - E t ) W d = Total water depleted from the framework W s = Total water provided to the framework. R e = Effective precipitation amid the period under consideration. E t = Water utilized by products to meet evapo- transpiration needs.

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Drainage effectiveness Data to be gathered Total measure of water discharged to different fields in the order region. Measure of water required by different yields Amount of water emptied out of the summon zone subsequent to satisfying need of different harvests. Sufficiency & execution of existing seepage framework.

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Irrigation Potential Created (IPC)& Irrigation Potential Utilized (IPU) Irrigation Potential Created (IPC): The water system potential made by a venture at a given time amid or after its development is the total gross territory that can be flooded every year by the amount of water that could be made accessible by all the associated and finished works upto the finish of the water courses or the last point in the water conveyance framework. The territory can be flooded from a venture in an outline horticulture year, that is, from the 1 st July to 30 th June one year from now for the anticipated trimming design and acknowledged water remittance on its full improvement. Prior to a range is incorporated under potential made, it must be guaranteed that the water for the territory to be accounted for upon is accessible and the transport framework upto and including the water system outlet to serve a region up to 40 hectares in the zone to be flooded is finished. Water system Potential Utilized (IPU): The water system potential used is the aggregate region for which water is really conveyed to the outlet upto 40 hectare obstructs as arranged.

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Format for Report on Water Use Efficiencies (Chapter 1 to 7 as given beneath) Contents Chapter-1 Project Details 1.1. Presentation including goal of the reviews 1.2. Extend - Salient components 1.3. List Map Chapter-2 Dam/Reservoir Efficiencies 2.1. Hydrology . 2.1.1 75% yearly tried and true streams (composed! foreseen) 2.1.2 Actual 75% tried and true yearly streams 2.1.3 I inflow design on ten day by day I month to month premise 2.1.4 Water spillage . 2.2. Dissipation misfortunes in the store 2.3. Drainage misfortunes from the store 2.4 Calculation and introduction of Efficiencies in unthinkable frame

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Chapter-3 Canal/Conveyance Efficiencies 3.1. Trench Capacity 3.1.1 Designed conveying limit 3.1.2 Actual conveying limit 3.2. Leakage in different ranges of different waterways 3.3. Vanishing misfortunes in different waterways 3.4. Figuring and introduction of Efficiencies in unthinkable frame in 2 sections as given underneath (a) For waterways having release more than 150 cuse6 (b) For trenches having release upto 150 cusec Chapter-4 On Farm Application Efficiency 4.1. Trimming design 4.1.1 Designed editing design 4.1.2 Actual trimming design 4.1.3 Comparison 4.2. Weighted normal precipitation in the order of the venture 4.3. Reference evapotranspiration in the territory under review 4.4. Edit co-proficient regard of different yields 4.5. Viable precipitation in the summon 4.6. Permeation misfortunes in paddy fields 4.7. Ground Water part 4.8. Net water system prerequisite 4.9. Field water system prerequisite 4.10 Net water system necessity 4.11 Calculation and introduction of Efficiencies in forbidden shape

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Chapter-5 Drainage Efficiency 5.1. Aggregate sum of water discharged to different fields 5.1.1 Surface Water 5.1.2 Ground Water 5.2 Amount of water required by different yields 5.3 Amount of water emptied out of the summon range 5.4 Adequacy and execution of existing seepage framework 5.5. Requirement for outer seepage framework, if any 5.6. Issues of water logging, saltiness, alkalinity, if any 5.7. Estimation and introduction of Efficiencies in unthinkable shape Chapter-6 Potential made and Utilized 6.1 Year astute Potential Creation 6.2 Year savvy Potential Utilization Chapter-7 Findings and Recommendations 7.1. Suggestion for development in Water Use Efficiencies 7.1.1. Dam/Reservoir productivity 7.1.2. Trench/Conveyance effectiveness 7.1.3. On Farm application productivity 7.1.4. Waste productivity

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Project Selection Criteria Different bowls Different Agro-Climatic zones.

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Checking the outcomes Remote Sensing Technology to be utilized.

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Water Use Efficiency Studies of Vamsadhara Project Stage II

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Project points of interest River : Vamsadhara Type of project : Major Irrigation/ Inter state extend. Sort of Structure : Barrage. Location : Srikakulam(Dt) CCA : 59,987 ha(1,48,230 acres) Ultimate Irrigation Potential : 59,987 ha(1,48,230 acres) Potential Created : Stage I Stage II 59,987 Ha 82,087 Ha Potential utilized : 82,087 Ha (upto 2006)

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Salient elements: 1. Hydrology. Catchment area - 9,371 Km 2 Mean Annual rainfall - 1,914 mm Average rainstorm - 1,067mm precipitation. Greatest surge - 6,764 m 3/Sec discharge observed Total Yield - 115 Tmc Share of A.P. - 50% 75% reliable yearly - 70.452 Tmc(1994 Mcum) yield Share of A.P. - 35,226 Tmc(997 Mcum) Stage I utilization - 17.841 Tmc (505 Mcum) Storage capacity - 17.33 Mm 3

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2. Flood: Length : 475.79 m Spillway bays: 22 Nos. (18.29 m x 4.75 m) Scorring sluices: 2 (12.19mx 4.88 m)

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Dam/Reservoir Efficiency (Barrage) Water Spillage : Increasing pattern Evaporation losses: Negligible Seepage losses : Nil Success Indicator : Surplus in all years considered

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3. Channels: LMC No. furthermore, size of vents: 2.44 m x 2.44m – 9 Nos. Length of Canal : 107.80 Km Carrying capacity : 70.23 M 3/s (2480 c/s) (Des)

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CANAL CHOSEN Name of the Canal : 48R L.M.C Discharge : above 150 cusecs Reach : Head achieve Details of Reach : Km 0.00 to km 2.00 Canal misfortunes : 6.23 m 3/s/M. sqm. (Drainage misfortunes) Conveyance proficiency : 90.50%

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CANAL CONVEYANCE EFFICIENCY Seepage misfortunes FORMAT – An I. Distinguishing proof Particulars: 1. Name of the Project : Vamsadhara Project Major/Medium : Major Irrigation Project 2. Circle : Vamsadhara Project Circle, Srikakulam 3. Division : Vamsadhara Project Division, Srikakulam. 4. Nature of Field Studies : Measurement of drainage loss of Distributary by Inflow-Outflow technique. 5. Particulars of trench reach: ; 48R of L.M.C (i) Main channel/Distributary : Distributary (ii) Lined/Unlined : unlined (iii) Discharge over 150 C/s : above 150 Cusecs. Release beneath 150 C/s (iv) Length of reach : From km 0.00 to km 2.00 6. Trim season details : : Khariff 7. Span of Field Studies : on 22.12.2006 Cont.

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II. FIELD OBSERVATIONS DATA SHEET Measurements of Discharge at upstream control Point @ CH 0.00 Using Current meter :1.505 Cumecs. 2. Release @ middle of the road openings & off taking channels. (i) Pipe outlets : NIL Cont .

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Off taking Channels : NIL. 3. Estimations of Discharge at down stream Control point @ 2.00 km. Using Current meter : 1.362 Cumecs 4. Seepage misfortune = 1 – 2 – 3 = 1.505-1.362 = 0.143 Cumeces Cont.

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Wetted border of segment 6. Drainage