Polavaram Irrigation Project Progress during the period 05th Mar – 11th Mar 2018 Water Resources Department #53 Virtual Review of Polavaram Project by Hon’ble Chief Minister Dt.12 March 2018 Polavaram Irrigation Project

Main Components Of Dam Works Project status Description Completed Overall 54.4% Right main canal 91.0% Left main canal 59.6% Head works 41.2% Head works – Main dam Excavation for spillway & spill channel : 778.80 lakh cum completed out of total 1115.59 lakh Cum (70%) Concreting for spillway & St. Basin: 5.57 lakh cum completed out of 16.39 lakh Cum (34.00%) D’wall concreting done for 1030.4 Rm out of 1427 Rm (72%) Fabrication of Radial Gates completed for 10,450MT out of 18000 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 354 m out of 2050 m (17.26%) PIP– Main Canals RMC : Excavation completed for total length of 177.9 Km (100%), Lining completed for 146.11 KM out of 177.9 Km (82%). Structures 182 completed(56-Progress) for 255nos. LMC : Excavation completed for 164.748 Km out of 210.927 Km (78%), Lining completed for 124.593 KM out of 210.927 M (59%). Structures 137 Completed (87- progress) for 452 nos. Main Components Of Dam Works Completed Spillway & Spill channel excavation & PH excavation(total Earthwork) 70% Spillway & Spill channel (total concrete) 16% Diaphragm wall construction. 72% Radial Gates fabrication 58%

CONSTRUCTION PROGRAMME OF PIP HEAD WORKS Revised Feb. 2018 CONSTRUCTION PROGRAMME OF PIP HEAD WORKS 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 653 471.12 181.88 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 3.87 8.08 Mar-19 776.47 124.95 651.52 5 Concrete- Stilling Basin+Apron+ Divide wall 4.44 1.26 3.18 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 NO 2312 733 1579 Dec-17 106.36 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 968 459 467.72 248.22 219.5 19 Fill - Coffer Dams (U/s & D/s) Transstroy 95.62 105.25 20 Fill - ECRF Dam 88.6 Dec-19 422.79 21 Spillway Excavation+ Road + others 711.15 429.23 281.92 Mar-13 TOTAL 5385.91 1664.37 3324.9  AMOUNT AFTER DEDUCTING TENDER DISCOUNT OF (-)14.055 % 

This week’s Progress in Nutshell (5th March. to 11th March) S.NO DESCRIPTION   Total Qty Completed As on 11th Mar This Month progress ( March,18) Previous Week THIS WEEK BALANCE 1 Earthwork Excavation L cum 1115.59 778.80 1.36 0.24 1.26 336.79 2 Concrete Spillway & Stilling Basin 16.39 5.57 0.11 0.17 10.82 3 Trunion Casting Nos 96 73 23 4 Arm Girders Fabrication 384 - Nil 5 Horizontal Girders 192 6 Thrust Blocks 7 Trunion Pins 51 45 8 Trunion Brackets 48 9 Diaphragm wall m 1427 1030.4 23.6 7.6 18.8 396.6 10 Jet Grouting (D/s) 1417 1098 319 11 Jet Grouting (U/s) 2050 354 238.5 132 156 1696

PERCENTAGE COMPLETION Excavation Status PERCENTAGE COMPLETION Left flank Target Date Jun’ 2018 Balance Qty 101.48 L Cum Total Qty 131 L Cum Target date- Feb.’18 Total Qty 160 L cum Balance Qty 3 L cum Ch. 356- Ch..900 Total Qty 161 L Cum Balance Qty Nil Total Qty 288 L Cum Balance Qty 64 L Cum 902 Hill Godavari River U/S Coffer dam D/S Coffer dam ECRF dam Total Qty 50 L Cum Balance Qty 31 L Cum Approach Channel Spill Channel Pilot Channel Spillway Total Qty 124 L Cum Balance Qty 29 L Cum River diversion 26% Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 70 L Cum Qtty for CC Blocks &Embkt: 38.59 L cum Component Target completion date 902 Hill 31.08.2018 Bal Spill ch. App. Ch. 31-12-2018 Pilot Ch. Total Qty Completed Balance 1115.59 L cum 778.80 L Cum 336.79 L Cum Legend Completed Critical Non critical

Earthwork - Progress Achieved (Period 05th – 11th Mar’18) Item Total Involved Qtty. Executed Qtty. Balance Quantity as on 5th Mar - 11th Mar'18 Target from 5th Mar – 11th Mar '18 Progress achieved from 5th Mar - 11th Mar'18 Short fall Balance Qty as on 12th Mar 2018 Target Date of completion Spill Channel 902 Hill 163 92.76 70.24 2.59@week 0.37@day 0.10 2.49 70.14   Balance 448 380.35 67.65 2.73@week 0.39@day 1.16 1.57 66.49 CC Blocks 30.8 - Embankment 7.79 Total 649.59 473.11 176.48 5.32@week 0.76@day 1.26 4.06 175.22 Pilot Channel 50 19.24 30.76 Spillway 161 Left Flank 124 94.67 29.33 1.40@week 0.20@day 1.40 Total ( Navyuga) 984.59 748.02 236.57 6.72@week 0.96@day 5.46 235.31 Approach Ch. (TTY) 131 29.52 101.48 2.38@week 0.34@day 2.38 Grand total 1115.59 777.54 338.05 9.10@week 1.30@day 7.84 336.79 *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 70.14 Qty. Executed so far 92.76 L Cum   0.4 L cum/day   Balance 66.49 Qty. Executed so far 380.35 L Cum   0.39 L cum/day CC Blocks 30.8 0.11 L cum/day Embankment 7.79 0.05 L cum/day Pilot Channel 30.76 Qty. Executed so far 19.24 L Cum   0.12 L cum/day Left Flank 29.33 Qty. Executed so far 94.67 L Cum   0.2 L cum/day TOTAL 235.31 0.99 1.22 1.07 0.28 Approach Channel 101.48 Qty. Executed so far 29.52 L Cum   0.34 L cum/day 336.79 1.33 1.56 1.41 0.62

Executed Quantity ( L. Cum) Details of Concrete works Name of Component Total Quantity (L. Cum) Executed Quantity ( L. Cum) Balance Quantity ( L. Cum) Present Stage of work Spillway ( Body wall) 11.95 4.16 7.79 41 Blocks are tackled out of 53 nos. 32 Piers are tackled out of 47. Stilling Basin (including Divide walls+ Training walls + Fish ladder + Apron) 4.44 1.41 3.03 120 nos of Stilling basin ( 21.5x21.5 x 2.5m) are tackled out of 245 nos. Spill Channel ( CC Blocks) 18.75 - Design for Concrete Blocks under scrutiny at WRD. Total 35.14 *5.57 29.57 * Includes crevices/undulations filling also.

Stilling Basin Physical Status of Spill Way & Stilling Basin Concrete Component Total Qty. Executed Balance Spillway 11.95L cum 4.16 L cum 7.79 L cum Stilling Basin 4.44 L cum 1.41 L cum 3.03 L cum Total 16.39 L cum 5.57 L cum 10.82 L cum Stilling Basin Completed(99) Planned/progress (21)

Progress for the period : 16614 cum This Month(Mar,2018)Cumulative : 23672 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’16 : 90 cum Total spillway qtty. : 16.39 L Cum Total Executed : 5.57 L Cum Balance : 10.82 L Cum

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

SPILLCHANNEL CONCRETE PROGRAMME

Qtty. Achieved during the period Total Executed Qtty. So far Progress of Diaphragm Wall during the period 5th Mar – 11th Mar 2018 ch.58m to 1485.6m S.No Item Total Quantity Executed Balance as on 5th Mar’ 18 Target for the period Qtty. Achieved during the period Short fall Total Executed Qtty. So far Qty. 5th Mar – 11th Mar’18 ( as on 11 th Mar’18) 1 Trenching in soils ( Sqm) 65,130 42,811 22,319 1200 742 458 43,553 2 Trenching in Rock Cut (Sqm) 2,982 2,021.8 960.2 40 16.2 23.8 2,038 3 Completed D’wall length (m) 1427 1,011.6 415.4 20 18.8 1.2 1,030.4 Total no. of Panels : 400 , Completed : 267 Nos.

ECFR Dam & Coffer Dam – Schedule of Construction 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 d 1-Mar-18 31-Dec-19 1 2 3 4 5 6 7 8 9 11  12 13 14 15 16 17 18 19 20 21 22 23 U/s & D/s Cofferdam 365 d 1-Mar-19 a. Approval of Design & drawings by CWC 92d 31-May-18 3 Months b. Formation of D/s Cutoff ( in river portion) 60 d 1-May-18 30-Jun-18 2 Months c. Formation of U/s Cutoff 121 d 4 Months  d. Formation of U/s Cofferdam 181 d 1-Oct-18 31-Mar-19  6 Months e. Formation of D/s Cofferdam 122 d 31-Jan-19 2. ECRF Dam 425 d 14 Months

Progress & Programme of Hydraulic Gates

Programme & Progress - Gate Leaf Elevation: +25.185 M Programme & Progress - Gate Leaf S.No Description of Item Total quantity required Executed quantity as on 5th March Programmed for this week Achieved for this week Shortfall Balance as on 12th March 2018 Remarks 1 Skin plate assemblies 48 sets - Completed 2 Side guide assemblies After Embedded parts fixed in concrete 3 Seal assembly with SS bolts 48sets 4 Horizontal girders 192 No's 192 Nos 5 Arms girders 384 Nos 384 nos 6 Horizontal girder bracings Steel awaited 7 Trunnion (48 L + 48 R) 96Nos 72 23 8 Trunnion Pins 50 45   9 Self lubricating Bushes 16 80 To be imported Brackets (48 L + 48 R) 42 48 10 Sub Assemblies : 48L + 48R Arm assembly with trunnion 96 56 39 Bush fitting with trunnion Trunnion with bush pin & bracket assembly 93

Hydraulic Hoist River Sluice Gates Elevation: +26.00 M S.No Description of Item Total quantity required Executed/ Received quantity Programed 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: +25.316 M S.No Description of Item Total quantity required Executed/ Received quantity Programmed for this week Achieved for this week Balance Remarks 1 Embedded parts 48 vents - Design pending at CWC 2 Stoplog elements 5 sets Elevation: +17.00 M River Sluice Gates S.No Description of Item Total quantity required Executed/ Received quantity Programmed 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

Progress of Jet Grouting during the period (5th Mar – 11th Mar’18) S.No Item Total Quantity Executed Qty. Balance as on 5th Mar 2018 Target for the period Qtty. Achieved during the period Short fall Total Executed Qtty. So far ( as on 11th Mar 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 132 1235 120 104 16 236 2050 m 198 *1852 180 156 24 354 * 400m of River lean flow width is involved ** will be taken up after River diversion during March 2018.

Status of Designs Item Total No. of Designs involved Approved by CWC Submitted by Contractor & at Various stages of approval Yet to be submitted by Contractor Spillway 18 7 4 ECRF Dam 17 2 8 Gates 5 1 42 14 16 12

Pending with Contractor Details of Design Approval Stage S.NO Description Pending with Contractor Pending with WRD Pending with CWC 1 Design of Spill channel CC blocks Design submitted Under Scrutiny  ---- 2 Design of Spill Channel Bridge Design is to be submitted. 3 Design of Soil Improvement in clay in ECRF Dam (Stone columns) Design under finalization by Prof. Ramana, IIT-D. Tests for soil properties to be done. 4 Hydraulic Design of Spill channel , Approach Channel & Pilot Channel 3D model studies draft report furnished by CWPRS. Design is to be submitted by the Agency. 5 ECRF Dam (Gap -2) 6 Protection of Banks (River Godavari)

Details of Design Approval Stage S.NO Description Pending with TTY Pending with WRD Pending with CWC 7 Method Statement for Jet Grouting Remarks communicated by CWC. Agency to be submit the replies.  ---- 8 ECRF / Earth dam for Gap-I The Agency has to submit the designs after completing the soil investigation studies. 9. Stability of side slopes of Spill channel in soil CWC communicated remarks on the design submitted. Agency to attend the remarks and re-submit the design. ---  10. Gap-III - The tests conducted i.e, Groutability tests etc. Are to be discussed in DDRP for finalization of type of Gap-III

Details of Design Approval Stage S.NO Description Pending with TTY Pending with WRD Pending with CWC 11. D/s Coffer Dam  ---- Stability Analysis for D/s coffer Dam submitted. Under Scrutiny at CWC. 12 Design of Soil Improvement in clay in Spill Channel (Stone columns) CWC communicated remarks on the design submitted. Agency to attend the remarks and re-submit the design. -- 13 Training Walls Designs of Left Training Wall is to be submitted after approval of GA of Fish Ladder by CWC. 14 River sluice Gates Design to be approved by CWC.

Details of Design Approval Stage S.NO Description Pending with TTY Pending with WRD Pending with CWC 15 Design of NOF blocks Design to be submitted considering the FEM analysis results.  ---- 16 DEEP BLOCK STILLING BASIN Design to be submitted duly enclosing geological mapping of stilling basin area in deep portion & other reports from GSI. Rock exposition under process at site. 17 Side slopes at D/s of Spillway Geological survey, Designs for Protective measures for rock slopes report submitted (M/S EGE consultants, New Delhi) by Transstroy . It is under scrutiny at CWC. 18 Design of Stoplog Gates Under scrutiny at CWC. 19 Design of Gantry Crane

Works to be completed for Flood Diversion through Spillway Reservoir Storage level Main items to be Completed Total Amount Expenditure Incurred Amount Required for completion +41.15m Spillway 988.79 298.20 690.59 Radial Gates 456.37 69.03 387.34 Spill Channel 1847.55 805.94 1041.61 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 --- Protection works 28.04 Gap III 1.57 Gap I 47.42 Spill channel bridge 46.07 Diaphragm wall 462.20 264.29 197.91 LA&RR 4814.08 1916.76 2897.32 Total 9189.81 3448.29 5741.52

Polavaram Irrigation Project – Reimbursement Details Rs. in Crores Total Expenditure incurred up to January,2018 13,053.91 Expenditure incurred after declaration as National Project up to January,2018 7918.04 Amount Re-imbursed by GOI up to 09.02.2018 4,932.26 Amount to be Reimbursed 2985.78

LA and R&R Status (L.A, Submergence, Land to Land and Housing) For EL + 45.72 m (FRL) COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) LA and R&R 162739AC 33225.74 102480.90 AC 4922.76 60258.10 AC 28302.98

LA and R&R Status (L.A, Submergence, Land to Land and Housing) For EL + 41.15 m COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) W.G District L.A (In Acres) 29316.28 1434.00 28972.28 1348.00 344.00 86.00 R&R (No. of PDFs) 12449 1921.00 2584 160.00 9865 1761.00 TOTAL 3355.00 1508.00 1847.00 E.G District 16111.65 480.99 15239.20 281.98 872.45 199.01 5290 892.00 764 52.35 4526 838.65 1372.99 334.33 1037.66 Grand Total 4727.99 1842.33 2884.66 Revised on 3 March 2018

Quality Control tests Conducted during 5th Mar – 11th Mar’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 4 All the tests conducted during this week satisfied the standards. Consistency tests IST and FST Compressive Strength Tests on Fine Aggregate Fineness Modulus 7 Silt Content 3 Tests on Coarse Aggregate Gradation 28 Crushing value Flakiness & Elongation Los Angles Abrasion Value Aggregate Impact Value

Quality Control tests Conducted during 5th Mar – 11th Mar’18 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 1 2 All the tests conducted during this week satisfied the standards. Yield Sterength Elongation 5 Concrete Cubes Compressive Strength 177 B Jet Grouting Bentonite   Density 7 8 Viscosity Neat Grout 120 130 Bleed

Quality Control tests Conducted during 5th Mar – 11th Mar’18 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 120 130 All the tests conducted during this week satisfied the standards. Bleed 4 UCS Stress 50 54 5 Permeability Flow  28 30 C Diaphragm wall 1 Aggregate Grain Size 16 22 148 150 CCS 15 19

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