Detailed project report of Damanganga-Pinjal link project Salient Features Sl. Particulars No. 1 Name of the Project 2 Type of Project (Irrigation or Multipurpose) 3 Location 3.1 River Basin a) Name b) Located in i) State(s) ii) Countries (if international river) 3.2 River / Tributary 3.3 State(s)/District(s)/Taluk a(s) in which the following are located: a) Reservoirs State District Taluka b) Head work State District Taluka c) Command Area d) Power house State District Taluka Damanganga-Pinjal Link Project Drinking Water Supply Maharashtra and Gujarat Damanganga basin and Pinjal Sub basin of Vaitarna basin Gujarat and Maharashtra Not Applicable Damanganga/Vagh; Vaitarna/Pinjal Bhugad Khargihill Gujarat and Maharashtra Maharashtra Valsad and Nasik and Thane Nasik Kaprada and Trimbak, Jawhar and Trimbak Mokhada Bhugad Khargihill Khargihill dam dam saddle dam Gujarat and Maharashtra Maharashtra Maharashtra Valsad and Thane Thane Nasik Kaprada and Jawhar Jawhar Trimbak Not Applicable. The project has been planned as drinking water supply project to augment domestic water supply of Mumbai city Bhugad Khargihill Maharashtra Maharashtra Nasik Thane Trimbak Jawhar i Detailed project report of Damanganga-Pinjal link project 3.4 Name of village near Head works 3.5 Location of Head works a) b) c) 3.6 a) b) 3.7 a) b) c) d) e) 4 a) b) c) d) Bhugad Behadpada Bhugad Khargihill Khargihill saddle dam dam dam 0 0 Longitude 20 12’ 30” 20 05’ 05” 200 05’ 18” Latitude 730 17’ 32” 730 16’ 27” 730 15’ 22” Lies in Earthquake Zone The project sites lie in seismic Zone-III as No. per the zoning map of India (IS: 1893-2002, Part-1). Project area reference to: 46 H/8 and 46 E/5 Survey of India Toposheets Index Plan Plate: 1.1 Access to the project Name Distance from project site Airport Mumbai/ Surat 170 km to 200 km Rail head Valsad/Umbergaon on 90 km to 100 km WR Road head Valsad/Bhilad on NH- 80 km to 95 km 8, Nasik on NH-3 River port Hazira 100 km to 150 km Seaport Mumbai 170 km to 200 km Interstate aspects of the project Catchment area of the basin Damanganga basin (km2) 2331(km2) Vaitarna basin (km2) 3647 (km2) State-wise details of Damanganga Basin Vaitarna Basin 2 catchment area (km ) (km2) Maharashtra 1438 3647 Gujarat 430 Union territory i) Dadra & Nagar Haveli 393 ii) Daman & Diu 70 Total 2331 3647 Submergence due to Bhugad Dam Khargihill Dam projects (ha) Maharashtra 916 1558 Gujarat 987 Total 1903 1558 Water allocation for the Water sharing between the States of Gujarat state (if any) / country and Maharashtra is under finalisation ii Detailed project report of Damanganga-Pinjal link project e) Water allocation for Not Applicable other states / countries f) Committed utilisation Bhugad (Mm3) Khargihill (Mm3) Irriga- Water Indu- Hydel Irriga- Water Indu- Hydel Upstream Projects i) Projects completed ii) Projects under construction iii) Future projects iv) Any other Downstream Projects i) Projects completed ii) Projects under construction iii) Future projects iv) Any other Sub-total g) Proposed annual utilisation by the project i) Irrigation ii) Water supply to Mumbai city (Mm3) iii) Hydel (evaporation losses) (Mm3) iv) Thermal Power (Mm3) v) Local Domestic and Industrial (Mm3) Gross annual utilisation (Mm3) (sum of i to v) h) Minimum agreed / proposed flow in the river for maintaining ecology 5 Estimated life of the projects (years) 6 Irrigation (ha) 7 8 Flood control Navigation tion supplystrial 18.77 16.69 - tion supply strial 14.38 29.65 - 8.20 2.03 6.65 77.70 16.78 0.72 3.94 - Bhugad (Mm3) 91.00 (Mad huban dam) - 57.51 - Khargihill (Mm3) - - - - - - - - - - - - - - 9.00 5.00 - - 11.00 5.00 91 - 7.03 6.65 77.70 69.81 5.72 3.94 Not Applicable 210 Not Applicable 369 - - 5.00 5.00 215 374 5.79 5.11 57.51 100 years Not Applicable. Damanganga – Pinjal link has been planned as a drinking water supply project to augment domestic water requirement of Mumbai city. No flood control envisaged No navigation proposed iii Detailed project report of Damanganga-Pinjal link project 9 Water supply 9.1 Domestic a) Names of towns / villages served b) Size of population served c) Quantum of water made available (m3) d) Quantum of water per capita (litre) 9.2 Industrial a) Name(s) and its location(s) b) Quantum of water made available (m3) 10 Project performance a) b) c) d) e) 11 11.1 11.1.1 a) b) i) ii) iii) c) 11.1.2 Irrigation Power Flood control Water supply Navigation Hydrology Catchments Catchments area at headwork site Gross Intercepted By existing projects By ongoing projects By contemplated projects Un-intercepted Catchment area classification according to mode of precipitation Damanganga – Pinjal Link Project will augment domestic water supply of Mumbai city. The population of Mumbai city as per census of the year 2011 is 1.84 crores. In addition, the villages lying in the periphery/vicinity of the reservoirs and villages developed for settlement of PAPs will also get drinking water supply to an extent of 10 Mm3(for both Domestic and Industrial use) from these two reservoirs. 895 Mm3 (210 Mm3 from Bhugad dam; 369 Mm3 from Khargihill dam; and 316 Mm3 from Pinjal dam) Diverted water will be used to augmentation of domestic water supply of Mumbai city The project envisages providing 10.0 Mm3 of water to meet the water requirements of the population in the vicinity of the reservoir for various uses including industrial purpose. Bhugad Khargihill Period of No. of Period of No. of simulation failure simulation failure Not Applicable Not Applicable 30 30 Not Applicable Not Applicable 30 30 Not Applicable Not Applicable Bhugad Dam (km2) 708 Khargihill Dam (km2) 646 52 33 75 548 Bhugad Dam 20 19 154 453 Khargihill Dam iv Detailed project report of Damanganga-Pinjal link project a) b) 11.2 11.2.1 Rain-fed (km2) Snow-fed (km2) Precipitation Catchments 708 Nil 646 Nil Annual rainfall Annual Snowfall (mm) (mm) Damanganga Pinjal Damanganga Pinjal a) Average 2245 2758 Nil Nil b) Maximum 2983 2983 Nil Nil c) Minimum 1657 2440 Nil Nil 11.2.2 Command Area Not Applicable 11.3 Annual yield calculated at Bhugad Khargihill 3 the proposed site (Mm ) Gross Net Gross Net a) Average yield 785.1 667.7 985.8 871.3 b) At 50% dependability 733.2 610.1 939.4 820.2 c) At 75% dependability 517.3 394.6 748.0 629.4 d) At 100% dependability 372.4 283.7 477.0 400.9 11.4 Climatic Data (command) Not Applicable 11.5 Seismic coefficients Bhugad Dam Khargihill Dam Concrete Earthen Concrete Earthen a) Horizontal 0.09 0.02 0.18 0.04 b) Vertical 11.6 Utilisation within the State (Mm3) 11.6.1 Water availability (State’s share in case of interstate river) 11.6.2 Committed utilisation a) Upstream Projects i) Projects completed ii) Projects under construction iii) Future projects iv) Any other b) Downstream Projects i) Projects completed ii) Projects under construction iii) Future projects 0.09 0.02 0.17 0.03 Water sharing between the States of Gujarat and Maharashtra is under finalisation Bhugad dam (Mm3) Major & Minor Medium Khargihill Dam (Mm3) Major & Minor Medium - 18.77 16.69 - 14.38 29.65 - 94.58 - - 78.95 - 91 - - - - - - - - v Detailed project report of Damanganga-Pinjal link project iv) Any other 11.6.3 Proposed utilisation by the project a) Irrigation b) Water supply (Mm3) 11.7 Floods near the headwork site 11.7.1 Observed period of record a) Maximum water level (El-m) b) Maximum discharge estimated (Cumec) c) Year of occurrence, date 11.7.2 Estimated Flood Magnitude (Cumec) a) 50 year return period diversion flood (Cumec) b) 100 year return period diversion flood (Cumec) c) Standard project flood d) Maximum probable flood (Cumec) 11.7.3 Design flood (Cumec) a) Dam (Cumec) b) Weir / Barrage c) Construction Diversion d) Flood control works 11.7.4 River flows (minimum observed) a) Water level (El-m) b) Discharge (Cumec) c) Months of Nil flow, if any 12 Reservoir 12.1 Water levels (m) a) Maximum Water Level (m) b) Full Reservoir Level (m) c) Minimum Draw Down Level (m) d) Outlet levels i) Irrigation (m) - Bhugad Dam - Khargihill Dam Not Applicable 210 Not Applicable 369 Mm3 110.03 88.30 8700 1584 3rd August, 2004 Bhugad Dam 13th , July, 1994 Khargihill Dam 3786 4138 4074 4418 Not Applicable 8992 Not Applicable 10222 8992 Not Applicable Not Applicable Not Applicable Damanganga 10222 Not Applicable Not Applicable Not Applicable Vagh River bed level 0.00 January to May River bed level 0.00 January to May Bhugad Khargihill 164.249 155.000 163.870 124.830 154.520 109.750 Not Applicable Not Applicable vi Detailed project report of Damanganga-Pinjal link project ii) iii) e) 12.2 12.3 12.4 12.5 a) b) c) 12.6 12.7 a) b) c) a) b) 12.8 Power (m) Others (please specify) Dead Storage Level (m) Free board (m) Wave height (m) Live storage (Mm3) Capacity at (Mm3) Full reservoir level (Mm3) Minimum draw down level (Mm3) Dead storage level (Mm3) Flood absorption capacity (Mm3) Sedimentation (Mm3) and levels after Years Above MDDL Below MDDL Encroachment of live storage (per cent) Sedimentation volume (Mm3) New zero elevation Average monthly evaporation losses from the reservoir Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 12.9 Seepage in the reservoir 120.00 Nil 112.50 4.07 2.76 398.574 105.75 Nil 93.00 5.04 2.13 420.046 427.07 28.496 460.896 40.850 5.280 Not Applicable 2.542 Bhugad Reservoir Khargihill Reservoir 50 Years 100 Year 50 Year 26.29 52.54 24.03 10.60 21.60 10.20 6.6 % 13.2 % 5.7 % 100 Year 48.55 19.20 11.6 % 36.79 67.73 73.46 33.92 107.80 112.50 89.60 93.00 Monthly Evaporation depths (mm) Bhugad and Pinjal Reservoir Khargihill Reservoirs 127.6 142.6 127.6 66.0 203.2 55.8 225.6 75.0 251.6 105.4 203.2 105.0 101.6 99.2 101.6 114.7 152.4 150.0 203.2 207.7 152.9 225.0 127.6 235.6 Both the reservoirs are appeared to be tight vii Detailed project report of Damanganga-Pinjal link project 13 Submergence 13.1 Land and property submerged a) Villages affected (No.) i) Fully ii) Partially b) Land affected (ha) i) Gross ii) Culturable iii) Forest iv) Others (specify) c) Buildings / houses (No.) d) Road / Rail (km) e) Transmission lines (km) f) Any other 13.2 Submergence ratio (with reference to CCA) 13.3 Number of families affected 13.4 Anticipated back water levels at important places along the periphery of reservoir 14 Head works 14.1 Dam 14.1.1 Embankment Dam Bhugad Reservoir Khargihill Reservoir 14 Nil 14 16 Nil 16 1903 810 290 803 523 Nil Nil Nil Not Applicable 1558 612 676 270 452 Nil Nil Nil Bhugad 1098 Bhugad Reservoir Khargihill 1204 Khargihill Reservoir 164.249 m upto 15 km from dam axis 155.000 m upto 16 km from dam axis Bhugad Khargihill a) Type of dam (Homogenous/Zoned/Ro ck-fill/Concrete faced) b) Length of dam at top (m) i) Right Flank ii) Left Flank (m) c) Top width (m) Concrete faced Rock Fill (CFRD) Concrete faced Rock Fill (CFRD) 527.5 527.50 16 341.0 341.0 10 d) Maximum height above GL (m) e) Dyke(s) i) Number ii) Total length (m) iii) Maximum height (m) f) Type of cut off and 68.63 72.92 Not Applicable Khargihill Saddle dam 1 400.40 25.92 Not Applicable viii Detailed project report of Damanganga-Pinjal link project 14.1.2 a) b) c) d) e) f) g) h) 14.1.3 a) b) c) d) e) f) g) h) i) j) k) i) ii) l) maximum depth Masonry and Concrete Dam (Non-over flow section) Type of Dam (masonry/concrete/ composite, any other) EL of top (m) (Road EL) EL of deepest foundation (m) Length at top (m) Length at the river bed (m) Width at top (m) Width at deepest bed level (m) Maximum height above deepest foundation level (m) Spillway (overflow section) Type of spillway (Ogee / chute / side channel / tunnel / siphon / any other type (specify) Full reservoir level (m) Maximum water level (m) Length (m) Maximum height above the deepest foundation (m) Crest level (m) Number of gates Type of gate Size of gate (mXm) Maximum discharging capacity (cumec) at Tail water level (m) Maximum (m) Minimum (m) Type of energy dissipation arrangement Bhugad Dam Khargihill Dam concrete concrete 168.270 98.850 158.920 81.000 174.5 174.5 173.20 173.20 8.00 69.642 8.00 85.60 69.42 77.92 Ogee Ogee 163.870 164.249 149.50 54.15 154.520 155.006 104.00 63.52 153.00 9 Radial 13.50x11.51 8849 138.52 6 Radial 14.00 x 16.00 9238 115 m 98.37 m Ski jump bucket type (Stilling basin with Chute block 96.00 m 78.80 m Ski jump bucket type (Stilling basin with Chute block and end ix Detailed project report of Damanganga-Pinjal link project m) Type of hoisting arrangement and its capacity 14.1.4 River sluice(s), Irrigation / Power outlet(s) a) Purpose b) Number c) Size (m) d) Sill level (El-m) e) Number of gates f) Type of gate g) Size of gate (mXm) h) Type of hoisting arrangement and its capacity 14.2 Barrage 14.3 Weir 14.4 Head Regulator(s) 15 Canal System 16 Cropping Pattern 17 Power 17.1 Type – Conventional / Pumped storage 17.2 Installed capacity (MW) 17.3 Annual PLF % 17.4 Annual energy (MU) a) Firm (MU) b) Seasonal (secondary) (MU) Total (MU) 17.5 Off peak requirement for pumping* * For pumped storage projects only 17.6 Head Race Channel / Tunnel 17.7 Balancing Reservoir 17.8 Fore bay and end sill) Hydraulic, 110 t sill) Hydraulic, 200 t River sluice 2 2.50 m x 3.0 m 108.0 m 2 Vertical lift 2.50 m (W) x 3.0 m(H) Hydraulic, 300 t River sluice 3 3.00 m x 5.00 m 98.0 m 3 Radial 3.00(W) x 5.30(H) Hydraulic, 120t/150t No barrage proposed No weir proposed No Head Regulator proposed Not Applicable. The diversion of water is through tunnels only and no canal is proposed. Not Applicable Bhugad Powerhouse Khargihill Powerhouse Conventional Conventional 2.00 76.68 3.00 61.64 9.09 13.68 16.20 20.52 22.77 Not Applicable 36.72 Not Applicable Not Applicable Not Applicable No balancing reservoir proposed No fore way proposed x Detailed project report of Damanganga-Pinjal link project 17.9 a) i) iii) Intakes Upper Intake Type & size of intake Stability of the slope/cuts around intake iv) Submergence of the entry below water level vi) Intake gates-number, type & size vii) Details of anti-vortex arrangements viii) Type of hoisting arrangement and its capacity b) Lower Intake (for pumped storage scheme) 17.10 Surge tank / shaft 17.11 Penstocks / pressure shafts a) Number, diameter & length b) Inclination c) Liner type d) Grade of steel e) Reach-wise rock cover f) Reach-wise rock properties-RMR/Q g) Reach-wise rock participation factorscomputed & adopted h) Reach-wise liner thickness i) Necessity for heart treatment, if any j) Bifurcation / trifurcation 17.12 Power House a) Type (surface or underground) b) Orientation Bhugad Powerhouse Khargihill Powerhouse Bell Mouth Not Applicable Bell Mouth Not Applicable Yes Yes 2 Nos. 2 Nos. Centre line of Penstock is kept 4.83 m below MDDL Rope drum hoist, 25t/ 10 t capacity Centre line of Penstock is kept 4.0 m below MDDL Not Applicable Not Applicable Not Applicable Not Applicable Diameter - 1.5 m Length - 177 m Not Applicable Diameter - 1.5 m Length - 215 m Not Applicable one bifurcation Bhugad Dam Power house Surface one bifurcation Khargihill Dam Power house Surface Not Applicable Not Applicable xi Rope drum hoist, 25t/ 10 t capacity Detailed project report of Damanganga-Pinjal link project c) Rock types encounteredRMR/Q values d) Major wedge formations, if any e) Rock ledge dimension between cavities f) Maximum head (m) g) Minimum head (m) h) Head loss in water conductor system (m) i) Design head (m) j) Dimensions (m X m) k) Unit capacity l) Installed capacity (MW) m) Type of turbine n) Type of generator o) Type of power house crane p) Number & size of draft tube gates/bulk head & capacity of hoists 17.13 Switch yard a) Type b) Voltage level 17.14 Transformer Cavern 17.15 Tail Race Channel a) Shape & size b) Length c) Recovery slope d) Maximum tail water level (m) e) Minimum tail water level (El-m) f) Average tail water level (El-m) g) HFL of recipient river channel at outfall h) Draft tube gates-number, type & size 17.16 Tail Race Tunnel 18 Cost 54.87 15.83 0.20 64.52 19.75 0.02 41.66 32.7 X 8.28 2 X 1.0 MW 2.0 MW Horizontal Francis AC Synchronous EOT 49.40 32.7 X 8.28 2 X 1.5 MW 3.0MW Horizontal Francis AC Synchronous EOT 2 Gates of 3.4 m X 2.34 m, Rope drum hoist of 6 t capacity 2 Gates of 3.4 m X 2.0 m, Rope drum hoist of 6 t capacity Out door 33kV Not Applicable Out door 33kV Not Applicable Open channel of 12.7 m width 70.0 m 1V:6H 115.00 Open channel of 12.7 m width 60.0 m 1V:6H 96.00 107.50 89.00 109.00 90.00 112.20 98.00 2 number stop log type Not Applicable 2 number stop log type Not Applicable xii Detailed project report of Damanganga-Pinjal link project 18.1 Cost of project (` lakh) Unit-wise Unit – I: Head Works Unit – III: Power house 18.2 Allocated cost (` lakh) a) b) c) d) e) f) 19 19.1 Irrigation Power Flood control Navigation Water supply Any other Benefits / Revenue Benefits a) b) c) d) e) f) 20.2 Food production (tonne) Power (kwh) Flood protection (ha) Navigation (tonnage) Water supply Any other (fisheries) Revenue a) b) c) d) e) f) i) ii) iii) g) Betterment levy Water Rates Irrigation Cess Pisciculture rights auction Power Rates Navigation Cargo Rates Regd. Charges Passenger Tax Others Total 21 Benefit Cost (BC) Ratio a) BC Ratio b) Internal Rate of Return (IRR) 271130 lakh 3531 Not Applicable. The project has been planned as drinking water supply scheme for augmenting domestic water supply of Mumbai city. As such whole cost of entire Project has been allocated to domestic water supply. Not Applicable Not Applicable Not Applicable Not Applicable 274661 lakh Quantity Nil 25.29 MU Nil Nil 579 Mm3 Nil Quantity Unit Price Nil 2.72/kWh Nil Nil Nil Rate Not Applicable 579 Mm3 Not Applicable Not Applicable 25.29 MU 2.72/kWh Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Value (Rs. in lakh) Nil 688 Nil Nil 72533 Nil Amount (Rs. in lakh) 72533 688 73221 1.95 16.29 % xiii Detailed project report of Damanganga-Pinjal link project xiv