Regarding WOrks in Himachal Pradesh of Irrigation infarstructure

HPCDP presentation regarding WOrks in Himachal Pradesh of Irrigation infarstructure

1. Introducing new concept in respect of HPCDP JICA –ODA Phase-I on basis of lessons learned Under HPCDP JICA –ODA Phase-II Hamirpur (H.P.) 12 th Dec, 2023 1

2. 2 Category wise details of prepared 225 DPRs as on 11/12/2023 S.N. Category Categories wise Nos. of Prepared DPRs of Different BPMUs Hamirpur Una Bilaspur Mandi Gohar Sarkaghat Kullu Palampur Dehra Dharamshala Chamba Rampur Solan Nahan Total 1 Channel 1 2 5 6 1 1 16 2 Channel + Desilting Basin 1 1 3 2 13 5 3 1 2 1 32 3 Channel + Pipe 1 1 4 1 9 9 1 4 2 3 35 4 Channel + Pipe + Desilting Basin/ Filtration Chamber 3 7 2 4 1 1 3 6 2 29 5 Channel + WST 1 1 6 Pipe +WST 1 1 7 Channel + Pipe + WST 4 3 1 1 1 3 1 14 8 Channel + Pipe + WST + Desilting Basin/Filtration Chamber 2 1 1 5 11 20 9 Pipe + Filtration Chamber+ Pressure Break +Repair of Existing Tank 1 1 10 Channel + G.I Pipe / MSERW Pipe+ Desilting Basin 1 1 3 5 11 Channel + G.I Pipe / MSERW Pipe 1 1 12 GI Pipe+ HDPE Pipe 1 1 13 Lift + MDT + ARV +BPC 4 3 5 1 2 15 14 Lift + MDT + WST+ ARV +BPC 1 1 15 Lift + MDT / OHT + ARV 5 11 4 3 3 5 8 4 43 16 Lift + MDT / OHT + WST+ ARV 3 1 3 7 17 Channel + Lift (Solar pumping) + ARV 1 1 18 MDT +Lift + ARV+ DT +Channel +Electricity 1 1 2 Grand Total 13 15 13 19 15 16 18 20 15 27 12 15 16 11 225

3. OUTLET CHAMBER WITH HYDRANT FOR DISTRIBUTION SYSTEM IN FIELDS OLD SYSTEM NEW SYSTEM Distribution Pipe Network System to Outlet - two different materials used GMS (Galvanised Mild Steel ) & H.D.P.E (High Density Polyethylene) fittings was used in Hydrant for usage of water in fields. ( Materials used:- G.I Tee with Steel Clamps, G.I Riser Pipe, H.D.P.E P.P Ball Valve and Elbow Bend with Clamp) From Distribution Pipe Network System to Outlet one uniform material of H.D.P.E is used HDPE (High Density Polyethylene) fittings with Electrofusion welding is used in Hydrant for usage of water in fields. ( Materials used:- Service Saddle, HDPE Riser, HDPE P.P Ball Valve and Elbow Bend with holding Clamp ) Drawback in Old System:- H.D.P.E Pipe & GMS Pipe were of different material ( different coefficient of thermal expansion) so there were chances of leakage So in New System Complete fitting of HDPE material is used with Minimum no.of Joints. 3

4. 4 Hydrants in Phase-I two different materials used Galvanised Mild Steel & H.D.P.E. fittings ( G.I Tee with Steel Clamps, G.I Riser Pipe, H.D.P.E P.P Ball Valve and Elbow Bend with Clamp) Chances of leakage more due to different coefficient of thermal expansion

5. 5 RCC Chamber for Hydrants in Phase-I

6. 6 HDPE Riser with PP Valve Box Valve with Cover Box Valves for Hydrants (Phase-I sub project LIS Beha Balla – BPMU Hamirpur ) Drawback:- Box Valves were directly placed on the Ground without any firm base leading to which boxes were filled with soil coming from beneath and were filled above PP valve making the hydrants defunct.

7. 7 Some were filled with soil completely, that whole HDPE riser assembly was submerged in soil Inlet and outlet openings were not closed which were at 30 cm depth, leading to which soil was entering in the box. Box Valves for Hydrants (Phase-I sub project LIS Beha Balla – BPMU Hamirpur )

8. 8 Proposed Hydrants in Phase-II (With Valve Box) Cost of One Hydrant including all assembly with Valve Box will be around 7000/- The cost of RCC Chamber including all assembly, per Hydrant Chamber, was 12000-13000/- Savings of Rs 5000-6000 Per Hydrant Chamber PP Valve Box with Cover HDPE Pipe

9. 9 Hydrants in Phase-II (With Concrete Chamber) HDPE fittings with Electrofusion welding Materials used:- Service Saddle, HDPE Riser, HDPE P.P Ball Valve and Elbow Bend with holding Clamp Complete fitting of HDPE material is used with Minimum no.of Joints to avoid leakage

10. PIPELINE DISTRIBUTION SYSTEM OLD SYSTEM NEW SYSTEM HDPE pipe class PE 80 and grade PN 4.0 & 6.0 was used in the DPRs Minimum 90mm Dia was incorporated in DPR and in 6m length due to which no. of joints were more. Only Single Tank (MDT) was proposed and whole CCA was irrigated through Distribution Pipeline System. Now HDPE pipe class PE 100 and grade PN 6.0 is being used in DPRs. For more effective Operation & maintenance, main line & distribution lines are designed to carry different discharge, so as to get minimum dia (63mm/ 75mm ) in distribution. Pipe in rolls/Coils are also preferred to reduce no. of joints. Provision of zonal Storage tanks are also made, kkeping in view the CCA topography, to be more farmer friendly usage. 10

11. 11 Main Line 90mm Dia Distribution Line 75mm Dia Water Storage Tanks Sump Well Collection Tank Main Delivery Tank -1 Main Delivery Tank -2 Rising main-1 Rising main-2

12. 12 Water Storage Tanks (7 no.) Desilting Chamber (2 Nos) GI Feeder Pipe

13. AIR RELEASE VALVE & PP Valve Chamber OLD SYSTEM NEW SYSTEM No Air Release Valve (ARVs) were used in Distribution Network. ARVs provided at Outlet Pipes with Tank, at summit point at Syphon in distribution network Sluice valves are replaced with PP valves, in Regulation Chambers, for ease of operation, maintenance and are economical. Drawback in Old System:- Bursting and blockage of pipes due to air entrained in pipes (lower efficiency). Introduction of Air Release Valves will reduce the risk of pipe bursting water Hammer Improvement : increased life of pipes (free from blockages and bursting). 13

14. 14 Regulation Chamber with PP Valve & Air release valve PP Valve Air Release Valve

15. CHANNELS & DISTRIBUTION SYSTEM OLD SYSTEM NEW SYSTEM No Provision of Escape Points in Channels and in Hybrid System (Channel & Pipes System) No provision for checking of blockage in pipes. In channels, flood protection structures & escape points are being provided as per site requirement In certain cases length of channels increased and extended beyond the GCA boundary to drain out excess water in rainy season. Trash Rack with chamber is provided in Hybrid System at Channel & pipe junction to stop entry of foreign material. Provision for Escape Point(s) in Pipe Distribution network so that water doesn’t freeze in winter ( In Snow Bound Areas). Provision of Desilting Basin & Filtration Chamber is also made Drawback in Old System:- Bursting and blockage of pipes occurred due to freezing of pipes 15

16. Provision of ESCAPE POINTS in Pipes in Snowbound areas & Flow Irrigation Schemes 16 Escape points

17. 17 Provision of Filtration Chamber in Feeder Pipe (right Phase CCA) Provision of Desilting Chamber in Main Channel (left Phase CCA) Feeder Pipe (75 mm Dia) Water Storage Tanks (5 No.s ) Distribution Line (75 mm Dia) Main Channel

18. Drawing- Desilting Basin (Channel) 18

19. 19 Filtration Chamber for Pipe Irrigation

20. Hybrid System OLD SYSTEM NEW SYSTEM Either Lift, Flow or Tubewell Irrigation Systems were being adopted As per Site condition, Hybrid systems are also being adopted 20

21. 21 Hybrid System through Channel & Solar Pumping Machinery Phase 1 area being irrigated through Solar pumping machinery & Outlets Phase 2 area being irrigated through Channel Main Delivery Tank Sump Well Desilting Basin Main Channel Distribution Channel Rising Main

22. 22 Hybrid System through Channel & Lift System Phase 2 area being irrigated through Channel Phase 1 area being irrigated through pumping machinery & Outlets Main Delivery Tank Storage Tank Main Channel Desilting Basin Main Channel Sump Well Rising Main

23. PUMPING MACHINERY OLD SYSTEM NEW SYSTEM Centrifugal Pumps in Two stages (Booster & Main Stage) was used with Positive Suction. Open well /Vertical Submersible Pumps with Perforation Chamber are used in Single Stage or Double Stage and Centrifugal Pumps in some cases with Negative suction. Drawback in Old System Centrifugal Pumps with Negative Suction requires Priming, less Efficiency and requires regular maintenance. Advantages in New System Open well /Vertical Submersible Pumps have higher efficiency with self priming ability and Centrifugal Pumps with positive Suction requires no priming and less maintenance. Perforation Chamber provides protection for Pumps from Flood and ensure clear water for usage. 23

24. Perforation Chamber New Proposal of Head Weir in Phase-II Perforation Chamber in No Fine concrete has been proposed adjacent to Head Weir for protection of Pumps during Floods And to ensure Silt free water for pumping

25. AUTOMATION of PUMPING MACHINERY OLD SYSTEM NEW SYSTEM Manual Operations Provision of Mobile Automation for Operation Components M-Power Module, Mobile Set with SIM, Relay Selector. Drawback in Old System:- Farmers & Beneficiaries have to manually operate pumping machineries . Advantages in New System:- Avoid wastage of water (optimized use) Efficient use of resources and Less Manpower/drudgery . 25