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This report provides an update on the progress made in the Polavaram Irrigation Project during the period of April 16 to April 22, 2018. It includes details on the completion status of various project components and highlights key achievements.
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Progress during the period 16th Apr - 22nd Apr 2018 #24 Inspection of Polavaram Project by Hon’ble Chief Minister Dt. 23rd April 2018 Polavaram Irrigation Project Water Resources Department
Project status • Head works – Main dam • Excavation for spillway & spill channel : 800.89 lakh cum completed out of total 1115.59 lakh Cum (71.80%). • Concreting for spillway & St. Basin: 5.44 lakh cum (excluding 1.65 L Cum of crevices filling) completed out of 16.39 lakh Cum (33.20%). • D’wall concreting done for 1195.6 Rm out of 1427 Rm (83.80%). • Fabrication of Radial Gates completed for 10,800MT out of 18000 MT (60%). • Jet Grouting for d/s Coffer dam completed for 1098 m out of 1417m (78%). • Jet Grouting for U/s Coffer dam completed for 1071 m out of 2050 m (52.20%). • PIP– Main Canals • RMC : Excavation completed for total length of 177.9 Km (100%), Lining completed for 148.329 KM out of 176.20 Km (84%). Structures 182 completed. • 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. * As per Revised estimate **As per out turn
CONSTRUCTION PROGRAMME OF DAM PACKAGE As on Dt. 2nd April, 2018
# percentage on total qtty This week’s Progress in Nutshell (16th April – 22nd April)
Excavation Status Target Date Jun’ 2018 Total Qty 124 L Cum Balance Qty 28.88 L Cum Target Date Jun’ 2018 Total Qty 50 L Cum Balance Qty 30.76 L Cum Left flank Godavari River 26% U/S Coffer dam Godavari River D/S Coffer dam ECRF dam Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 70 L Cum River diversion Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 65.64 L Cum Target Date Jun’ 2018 Total Qty 448 L Cum Balance Qty 49.35 L Cum Target Date Jun’ 2018 Total Qty 131 L Cum Balance Qty 101.48 L Cum Qtty for CC Blocks &Embkt: 38.59 L cum Pilot Channel 902 Hill Target Date Jun’ 2018 Embt. Qty 7.79 L Cum Filters exvn Qty 30.78 L Cum Approach Channel Total Qty 161 L Cum Balance Qty Nil PERCENTAGE COMPLETION Spill Channel Spillway
Earthwork - Progress Achieved (Period 16th Apr – 22nd Apr’18) *Total Quantity involved including excavation for CC Blocks, Filters, Qtty for Embkt., etc
Revised Programme of Earthwork Excavation Revised on 16 Apr’18
Physical Status of Spill Way & Stilling Basin Concrete * Crevices/undulations
Progress for the period : 29,611 cum This Month(Apr, 2018)Cumulative : 83,560cum Cumulative in March 18 : 91,761 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 : 5.44 + *1.65 L Cum Balance : 10.95 L Cum Breakdown of Telebelt-200 for 24 Hrs. * Crevices/undulations
Progress of Diaphragm Wall during the period 16th Apr – 22nd Apr 2018 Ch.58m to 1485.6m Total no. of Panels : 400 , Completed : 319 Nos., Balance length: 231.4m
Progress of Jet Grouting during the period (16th Apr – 22nd Apr’18) ** will be taken up after River diversion during May 2018. * 400m of River lean flow width is involved
Elevation: +25.185 M Programme & Progress - Gate Leaf
Elevation: +26.00 M Hydraulic Hoist Spillway Stop log Gates Elevation: +25.316 M River Sluice Gates Elevation: +17.30 M
Dt.16th April 2018 Main Works to be completed & Funds Required for River Diversion
For EL + 45.72 m (FRL) LA and R&R Status (L.A, Submergence, Land to Land and Housing)
For EL + 41.15 m LA and R&R Status (L.A, Submergence, Land to Land and Housing)
Quality Control tests Conducted during 16th Apr – 22nd Apr’18
Quality Control tests Conducted during 16th Apr – 22nd Apr’18
Quality Control tests Conducted during 16th Apr – 22nd Apr’18