Polavaram Irrigation Project

Polavaram Irrigation Project
Progress during the period 26th Mar – 1st Apr 2018 Water Resources Department #55 Virtual Review of Polavaram Project by Hon’ble Chief Minister Dt. 2nd April 2018 Polavaram Irrigation Project

Main Components Of Dam Works
Project status Description Completed Overall Project 52.00% Right main canal *88.90% Left main canal *58.10% Connectivities 56.10% Head works – Main dam Excavation for spillway & spill channel : lakh cum completed out of total lakh Cum (70.9%). Concreting for spillway & St. Basin: 4.65 lakh cum (excluding 1.65 L Cum of crevices filling) completed out of lakh Cum (28.4%). D’wall concreting done for Rm out of 1427 Rm (76.7%). Fabrication of Radial Gates completed for 10,450MT out of MT (58%). Jet Grouting for d/s Coffer dam completed for 1098m out of 1417m (78%). Jet Grouting for U/s Coffer dam completed for 777 m out of 2050 m (37.9%). PIP– Main Canals RMC : Excavation completed for total length of Km (100%), Lining completed for KM out of Km (84%). Structures 182 completed. LMC : Excavation completed for Km out of Km (78%), Lining completed for KM out of M (59%). Structures 137 Completed. Main Components Of Dam Works Completed Spillway & Spill channel excavation & PH excavation(total Earthwork) 70.9% Spillway & Spill channel (total concrete) 13.2% Diaphragm wall construction. 76.7% Radial Gates fabrication 58% Over all Dam works 34% * As per Revised estimate

OVERALL STATUS CIVIL WORKS
Sl no. Component Scope (INR Cr.) Completed Value (Cr) % 1 Head Works 5,438.24 1,852.30 34.1% 2 LMC 2,159.20 1,253.66 58.1% 3 RMC 2,171.03 1,929.01 88.9% 4 Connectivity 505.67 283.79 56.1% Sub total Civil Works 10,274.14 5,318.76 51.8% 5 LA and R&R 33,051.62 5,865.84 17.7% Total 43,325.76 11,184.60 25.8% CIVIL WORKS

WEEKLY TICKER REPORT Head Works RMC LMC Connectivity

CONSTRUCTION PROGRAMME OF DAM PACKAGE
As on Dt. 2nd April, 2018 No Activity Agency Unit Total Done/ Paid Bal Start End Feb -Mar Apr – June July – Sept Oct - Dec Jan – Mar July – Dec 2018 2019 1 Excavation - Spill Channel + Embankment NEC L Cum 653 482.54 170.46 Sep-13 Dec-18 Crore 855.47 644.79 210.68 2 Excavation of Pilot Channel 50 19.2 30.8 Dec-16 45.59 10.11 35.48 3 Excavation - Powerhouse Foundation TBD 124 94.7 29.3 Jul-18 319.16 117.38 201.78 4 Concrete - Spillway 11.95 3.38 8.57 Mar-19 828.8 167.06 661.74 5 Concrete- Stilling Basin+Apron+Divide wall 4.44 1.27 3.17 Feb-17 COST INCLD IN SL NO 4 6 Concrete - Spill Channel + Excavation+ Filter 18.16 Apr-18 May-19 820.61 7 Spill Way Bridge Spans 49 Nov-18 Apr-19 9.99 8 Spill Channel Bridge Jun-18 Jun-19 46.07 9 Gates – Design & Approval NK Naidu LS 0.9 0.1 Oct-16 10 Excavation – Approach Channel TTY 131 29.52 101.48 114.32 20.66 93.66 11 Fill - Earth Dam GAP - I 15.61 47.42 28.22 12 Fill - Earth Dam Gap - III 0.5 1.57 13 Fill - Coffer Dams (U/s & D/s) - Jet Grouting m 3467 1875 1592 Dec-17 106.36 36.71 69.65 14 Fill - Rockfill guide Bund on Spillway U/s 12.16 51.56 15 Fill - Protection of Godavari Left Bank 7.4 28.04 16 Gates – Fabrication BEKEM MT 18000 10450 7550 Mar-17 456.37 69.03 387.34 17 Gates – Erection, Commissioning & Testing 48 Sep-18 COST INCLD IN SL NO 16 18 Diaphragm Wall+ Supporting services Bauer L&T M 1427 968 459 467.72 319.14 148.58 19 Fill - Coffer Dams (U/s & D/s) 95.62 Oct-18 105.25 20 Fill - ECRF Dam 88.6 Jan-19 Dec-19 422.79 21 Spillway Excavation+ Road + others 711.15 411.64 299.51 Mar-13 TOTAL

This week’s Progress in Nutshell (26th March. To 1st April)
S.NO DESCRIPTION Total Qty Completed As on 1st Apr This Month progress ( March,18) Previous Week THIS WEEK BALANCE 1 Earthwork Excavation L cum 791.17 13.63 4.16 4.20 324.42 2 Concrete Spillway & Stilling Basin 16.39 4.65 0.92 0.24 0.26 11.74 3 Trunion Casting Nos 96 76 5 20 4 Arm Girders Fabrication 384 - Nil Horizontal Girders 192 6 Thrust Blocks 7 Trunion Pins 53 43 8 Trunion Brackets 66 21 30 9 Diaphragm wall m 1427 1095.2 83.6 8.8 36.8 331.80 10 Jet Grouting (D/s) 1417 1098 319 11 Jet Grouting (U/s) 2050 777 650.5 85.5 166.5 1273

PERCENTAGE COMPLETION
Excavation Status PERCENTAGE COMPLETION Left flank Target Date Jun’ 2018 Balance Qty L Cum Total Qty 131 L Cum Total Qty 161 L Cum Balance Qty Nil Total Qty 448 L Cum Balance Qty L Cum 902 Hill Godavari River U/S Coffer dam D/S Coffer dam ECRF dam Total Qty 50 L Cum Balance Qty L Cum Approach Channel Spill Channel Pilot Channel Spillway Total Qty 124 L Cum Balance Qty L Cum River diversion 26% Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 70 L Cum Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty L Cum Qtty for CC Blocks &Embkt: L cum Target Date Jun’ 2018 Embt. Qty 7.79 L Cum Filters exvn Qty L Cum Component Target completion date 902 Hill Bal Spill ch. App. Ch. Pilot Ch. Total Qty Completed Balance L cum L Cum L Cum Legend Completed Critical Non critical

Earthwork - Progress Achieved (Period 25th Mar – 1st Apr’18)
Item Total Involved Qtty. Executed Qtty. Balance Quantity as on 26th Mar'18 Target from 26th Mar – st Apr '18 Progress achieved from 26th Mar – 1st Apr'18 Short fall Balance Qty as on 2nd Apr 2018 Spill Channel 902 Hill 163 94.78 68.22 1.05 1.96 67.17 Balance 448 387.76 60.24 3.10 -- 57.14 CC Blocks 30.8 30.80 - Embankment 7.79 Total 649.59 482.54 167.05 4.15 162.90 Pilot Channel 50 19.24 30.76 Spillway 161 Left Flank 124 94.67 29.33 0.05 1.49 29.28 Total ( Navayuga) 984.59 757.45 227.14 4.20 3.45 222.94 Approach Ch. (TTY) 131 29.52 101.48 0.70 Grand total * 786.97 328.62 324.42 *Total Quantity involved including excavation for CC Blocks, Filters, Qtty for Embkt., etc

Revised Programme of Earthwork Excavation
Item Bal Qty. ( L cum) Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Oct-18 Nov-18 Dec-18 Spill Channel 902 Hill 67.17 Qty. Executed so far L Cum 0.44 L cum/day Balance 57.14 Qty. Executed so far L Cum 0.37 L cum/day CC Blocks 30.80 0.11 L cum/day Embankment 7.79 0.05 L cum/day Pilot Channel 30.76 Qty. Executed so far L Cum 0.12 L cum/day Left Flank 29.28 Qty. Executed so far L Cum 0.24 L cum/day TOTAL 222.94 1.28 1.09 0.28 Approach Channel 101.48 Qty. Executed so far L Cum 0.10 L cum/day 0.25 L cum/day 0.40 L cum/day 0.60 L cum/day 324.42

Details of Concrete Works
Revised Dt. 19 March 2018 Name of the Component Total Quantity involved (L.Cum) Executed by M/s Transstroy (L.Cum) Executed by M/s Navayuga Total Executed Balance Quantity Remarks Spill Way (Body wall) 11.95 2.43 0.95 3.38 8.57 Stilling Basin (including Divide wall, Training wall, Fish ladder & Apron) 4.44 0.91 0.36 1.27 3.17 Total blocks (21.5 x 21.5m): 245 nos. 104 nos completed Sub-total 16.39 3.34 1.31 4.65 11.74 Spill channel ( CC Blocks) 18.75 -- Design of CC Blocks to be approved. Grand Total 35.14 30.49 Undulations/ Crevices filled up 1.65 -

Stilling Basin Physical Status of Spill Way & Stilling Basin Concrete
Component Total Qty. Executed Balance Spillway 11.95L cum 3.38+ (*1.37) L cum 8.57 L cum Stilling Basin 4.44 L cum * L cum 3.17 L cum Total 16.39 L cum L cum 11.74 L cum Stilling Basin Completed(104) Planned/progress (16) * Crevices/undulations

Progress for the period : 26,324 cum
This Month(Apr, 2018)Cumulative : cum Cumulative in March : 91,762 cum Cumulative in Feb‘18 : 40,077 cum Cumulative in Jan‘18 : 25,500 cum Cumulative in Dec ‘17 : 55,685 cum Cumulative in Nov : 44,651 cum Cumulative in Oct : 57,156 cum Cumulative in Sep : 60,950 cum Cumulative in Aug : 64,559 cum Cumulative in July : 78,860 cum Cumulative in June : 33,529 cum Cumulative in May : 30,063 cum Cumulative in Apr : 19,754 cum Cumulative in Mar : 17,832 cum Cumulative in Feb : 3,118 cum Cumulative in Jan‘17 : 2,076 cum Cumulative in Dec’ : cum Total spillway qtty. : L Cum Total Executed : *1.65 L Cum Balance : L Cum * Crevices/undulations

SPILLWAY CONCRETE PROGRAMME/PROGRESS BY NAVYUGA
REVISED PROPOSALS AS PER M/S NEC SPILLWAY CONCRETE PROGRAMME/PROGRESS BY NAVYUGA

SPILLCHANNEL CONCRETE PROGRAMME

Qtty. Achieved during the period Total Executed Qty. So far
Progress of Diaphragm Wall during the period 26th Mar – 1st Apr 2018 Ch.58m to m S.No Item Total Quantity Executed Balance as on 26th Mar’ 18 Target for the period Qtty. Achieved during the period Short fall Total Executed Qty. So far Qty. 26th Mar – 1st Apr’18 ( as on 1st Apr’18) 1 Trenching in soils (Sqm) 65,130 46,051 19,079 1300 1310 - 47,331 2 Trenching in Rock Cut (Sqm) 2,982 2,094.60 887.40 50 62.4 2,157 3 Completed D’wall length (m) 1427 1,058.40 368.60 25 36.8 1,095.20 Total no. of Panels : 400 , Completed : 295 Nos.

Progress of Jet Grouting during the period (26th Mar – 1st Apr’18)
S.No406 Item Total Quantity Executed Qty. Balance as on 26th Mar 2018 Target for the period Qtty. Achieved during the period Short fall Total Executed Qtty. So far ( as on 1st Apr 2018) Jet Grouting for Down stream Coffer Dam 1. Jet Grouting Columns ( No) 945 733 212 -- 2. Length of Jet Grouting (Rmt) 1417m 1098 **319 Jet Grouting for Upstream Coffer Dam:- 1367 407 960 120 111 9 518 2050 m 610.5 *1439.5 180 166.5 13.5 777 * 400m of River lean flow width is involved ** will be taken up after River diversion during March 2018.

CONSTRUCTION SCHEDULING FOR THE WORK OF ECRF DAM AND COFFER DAMS
S.NO Task Name Duration Start Finish 2018 2019 Mar Apr May Jun July Aug Sep Oct Nov Dec Jan Feb SCHEDULE FOR ECRF Dam & COFFER DAMS 670 days Mar-18 Dec-19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 U/s & D/s Cofferdam 365 days Mar-19 i Submission of Design and drawings 0 days Feb-18 ii Approval of Design & drawings by CWC 91 days May-18 3 Months iii Formation of D/s Cutoff ( in river portion) 60 days Jun-18 2 Months iv Formation of U/s Cutoff 121 days 4 months v Formation of U/s Cofferdam 181 days Oct-18 6 months vi Formation of D/s Cofferdam 122 days Jan-19 Gap-II ( ECRF Dam) Apr-18 2 months Jul-18 a. Diaphgram wall ( Balance work) 3 months b. Vibro Compaction 274 days Dec-18 2 months c. Vibro stone column d. Formation of hearting & rock fill embankment 456 days 15 months VII e. Finishing works Sep-19 4 months

Schematic Diagram of Hydraulic Gates

Programme & Progress - Gate Leaf
Elevation: M S.No Description of Item Total quantity required Executed quantity as on 25thMar Programme for this week Achieved for this week Shortfall Balance as on 2nd Apr,18 Remarks 1 Skin plate assemblies 48 sets - Completed 2 Side guide assemblies After Embedded parts fixed in concrete 3 Seal assembly with SS bolts 4 Horizontal girders 192 Nos 5 Arms girders 384 Nos 6 Horizontal girder bracings Steel awaited 7 Trunnion (48 L + 48 R) 96 Nos 75 Nos 20 8 Trunnion Pins 52 Nos 43 9 Self lubricating Bushes 16 Nos 80 To be imported from Japan Brackets (48 L + 48 R) 60 Nos 30 10 Sub Assemblies : 48L + 48R Arm assembly with trunnion 58 Nos 37 Bush fitting with trunnion Trunnion with bush pin & bracket assembly 3 Nos 92

Hydraulic Hoist River Sluice Gates
Elevation: M S.No. Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Receipt of hydraulic cylinders from Germany 96 No - Drawings under finalization at CWC Spillway Stop log Gates Elevation: M S.No Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Embedded parts 48 vents - Design pending at CWC 2 Stoplog elements 5 sets River Sluice Gates Elevation: M S.No Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Embedded parts 10 sets - Steel to be obtained for Liners by Agency. 2 Gate leaf 10 sets Drawings to be approved by CWC. 3 Hydraulic hoist Drawings to be approved by CWC

STATUS OF DESIGNS S.No Description Approved by CWC Present Status I.
SPILLWAY 1. Over flow blocks (49Nos.) a) 37 Blocks (Nos.3&4, 15 to 48) Approved up to El Designs & drawings from El to were submitted to CWC. Under Scrutiny at CWC b) 10 Blocks (Nos. 5 to 14) Approved up to El Designs & drawings from El to were submitted to CWC. Under Scrutiny at CWC c) One Block (No.50) Under Scrutiny at CWC d) One Block (No.2) & Fish Ladder Submitted to CWC & remarks communicated. Pending with the Agency. 2. NOF & Key blocks (4Nos) (Nos. 0, 1, 51 & 52) 3. Stilling basin Block No. 2 to 18 & 35 to 50 Block No. 19 to 34 Submitted to CWC & remarks communicated. Geological Inspections to be made. Pending with the Agency.

STATUS OF DESIGNS 6. 7. 8. 9. 10. 11. 12. S.No Description
Approved by CWC Present Status 4. Instrumentation (Block Nos.4, 26 & 40) 5. Divide Walls (Block Nos. 18, 26, 34 & 42) Under Scrutiny at CWC 6. Right Training wall 7. Spillway bridge Submitted to CWC & remarks communicated. Pending with the Agency. 8. Approach channel Pending with the Agency 9. Hydraulic design for spill channel 10. CC panels for spill channel 11. Spill channel bridge 12. Inlets to spill channel (2 Nos.) Yet to be submitted by the Agency

STATUS OF DESIGNS S. No Description Approved by CWC Present Status 13.
Slope Stability of Abutment hillocks(Rock Portion) Submitted to CWC & remarks communicated. Pending with the Agency 14. Spill channel slope in soil portion and slope stabilization details As per CWC remarks, additional ECPT tests are to be conducted and stone column design is to be submitted. Pending with Agency 15. Design of Spill channel Embankment Pending with the Agency 16. Power House rock slopes

STATUS OF DESIGNS S.No Description Approved by CWC Present Status II.
EARTH/ECRF DAMS 1. Earth Dam for Gap-I Submitted to CWC as Earth dam & remarks communicated. Pending with the Agency 2. ECRF Dam for Gap-II Yet to be submitted by the Agency 3. Earth Dam for Gap-III Under Scrutiny at CWC 4. Instrumentation for Gap-I & II 5. U/s Coffer Dam 6. D/s Coffer Dam Submitted to CWC & remarks communicated. Pending with the Agency. 7. Jet Grouting Column for U/s & D/s Coffer Dams 8. Diaphragm Wall for ECRF Dam

STATUS OF DESIGNS S.No Description Approved by CWC Present Status III.
GATES 1. Radial Gates a) Designs & EM parts of Radial Gates b) General Arrangement Drawing Under Scrutiny at CWC 2. Stoplog Gates Designs of Stoplog Gates Submitted to CWC & remarks communicated. Pending with the Agency. EM parts of Stoplog Gates c) 75 T Gantry Crane including Track 3. Hydraulic hoisting arrangement for Radial Gates Hydraulic hoist cylinders Hoist supporting Structure Power pack unit

STATUS OF DESIGNS S.No Description Approved by CWC Present Status 4.
River Sluice Gates with Bonnet arrangement a) EM parts with liner arrangement b) Service & Emergency gates Submitted to CWC & remarks communicated. Pending with the Agency. 5. Hydraulic hoisting arrangement for River Sluice Gates Hoisting arrangement Under Scrutiny at CWC 20 T EOT Crane 6. Pre-stressed anchorage for Radial Gates 7. Vertical Gates Shaft & Gorbel for River Sluice Piers

Main Works to be completed & Funds Required for River Diversion
Dt. 2nd April 2018 Reservoir Storage level Main items to be Completed Total Amount Expenditure Incurred Amount Required for completion +41.15m Spillway 343.91 697.18 Radial Gates 456.37 69.03 387.34 Spill Channel 805.94 Approach Channel 240.51 83.96 156.55 Pilot Channel 45.59 10.11 35.48 U/s and D/s Coffer Dams 211.62 36.71 174.91 Protection works 28.04 - Gap III 1.57 Gap I 47.42 Spill channel bridge 46.07 Diaphragm wall 462.2 319.14 143.06 LA&RR Total

Polavaram Irrigation Project – Reimbursement Details
Rs. in Crores Total Expenditure incurred up to February,2018 13,201.62 Expenditure incurred after declaration as National Project up to February,2018 8,065.75 Amount Re-imbursed by GOI 5,342.26 Amount to be Reimbursed 2,723.49

LA and R&R Status (L.A, Submergence, Land to Land and Housing)
For EL m (FRL) COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) LA R&R 98818 3348 212.55 95470 TOTAL

LA and R&R Status (L.A, Submergence, Land to Land and Housing)
For EL m COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) W.G District L.A (In Acres) R&R (No. of PDFs) 12449 2584 160.00 9865 TOTAL E.G District 480.99 281.98 925.73 199.01 8104 764 52.55 7340 334.53 Grand Total

Quality Control tests Conducted during 26th Mar – 1st Apr’18
Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests Conducted during the period Remarks A SPILLWAY 1 Tests on Cement Fineness 2 3 All the tests conducted during this week satisfied the standards. Consistency tests IST and FST Compressive Strength 6 Tests on Fine Aggregate Fineness Modulus 7 Silt Content Tests on Coarse Aggregate Gradation 21 Crushing value Flakiness & Elongation Los Angles Abrasion Value Aggregate Impact Value

Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests actually Conducted Remarks 4 Tests on Steel Tensile strength - Tests completed as per standards Yield Sterength Elongation 5 Concrete Cubes Compressive Strength 280 All the tests conducted during this week satisfied the standards. B Jet Grouting 1 Bentonite Density 7 9 Viscosity 2 Neat Grout 140 Bleed

Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests actually Conducted Remarks 3 Spoil Return Density 42 48 All the tests conducted during this week satisfied the standards. Bleed 4 UCS Stress 20 5 Permeability Flow 7 14 C Diaphragm wall 1 Aggregate Grain Size 30 34 51 CCS

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