Strengthening and formation of Left flood bank with River Training Works damaged due to Cyclone Michaung in Araniyar River from LS.119.700 Km to 123.900 Km in Thiruvallur District

Amount

Earth work excavation in all soils except hard rock requiring blasting and conveying for formation of bund with a lead 0 to 100 m by deploying earth moving machineries and tippers excluding bencing, formation of bund, breaking clods sectioning etc complete as directed by the departmental officers.

Supplying and filling with clean river sand in layers of not more than 15cm thick, well watered, rammed and consolidated etc., complete complying with standard specifications and as directed by the departmental officials

Supplying and erecting centering for vertical plain / RCC concrete walls of supply channel, retaining wall etc of follwing height with necessary supports, all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25mm x 3 mm for bearing laid silver Oak / Country wood joist of size 7.5cm x 5 cm spaced @ about 90 cm c / c and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm c / c etc., complete complying with standard specifications and as directed by the departmental officers

0 to 0.90 m Height

Upto 0.90m to 1.80m height

Upto 3m height

3m to 4m height

4m to 5m height

5m to 6m height

6m to 7m height

7m to 8m height

8m to 9m height

Providing and placing in position of plain cement concrete M 10 grade using M Sand and hard blue granite broken stone jelly of size 20 mm size mixing with mixer machine including the cost of bailing/pumping out the surface water wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by finishing, watering, curing, etc., complete complying with standard specifications and as directed by the departmental officers

Supplying and laying of ready mix M25 grade of concrete having charaterstic strength not less than specified in the IS 456-2000 using Ordinary portland cement with minimum cement content of 300 Kg/cum confirming to IS 8112 Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate without fly ash as per IS 383-1970 (2007) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456-2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 1959( 2004). The initial & final setting time confirming IS 12269-1987 (2004) with maximum temperature of concrete at the time of placing should not exceed 32 C The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103-1979 usual admixture-Air entraining & water reducing including the cost of hire charges for pump and pumping charges to the requred locations & levels as specified by the Engineer-in-charge, laying, compacting, consolidation by using vibrators, finishing, watering, curing testing charges as per IS 456-2000, 4031-(Part 386)/1988(2005) & (Part 2 )1999(2004) and 516/1959(2004) 4926-1976 (1990) mix design details to be got approved before commencement of the work adopting pour card system and other OK cards Excluding the cost of form works, centering shuttering and cost of reinforcement grills placed in position etc, complete complying with standard specifications and as directed by the departmental officers(RCC Work)

Supplying, fabricating and placing in position of Mild Steel or Ribbed Tor Steel for all RCC works as per design & drawing given including cost of steel, binding wire and labour charges for cutting, bending, laying in position and tying with binding wire, etc. complete complying with standard specifications and as directed by the departmental officers

Earth work in all soils except hard rock requiring blasting and conveying for formation of bund with a lead of 0 to 100 metre deploying earth moving machinery including benching formation of bunds breaking clods sectioning and watering and consolidation by the power roller etc., complete complying with standard specification and as directed by the departmental officer. (Conveyance of 5 KMMR)

Providing and placing in position of Plain Cement Concrete M 15 using M sand and hard blue granite broken stone jelly of size 20 mm mixing with mixer machine and laying including the cost of bailing/pumping out of surface water wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by using vibrators, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers

Gravel backing for revetment and apron in layer not exceeding 15 cm thick, including watering, consolidation and trimming the top surface so as to receive the rough stones and including stacking for pre measurement etc., complete as per standard specifications, and as directed by the departmental officers.

Manufacturing and fixing the Cement concrete block of size 300 mm X 250 mm X 200 mm of mix M 15 grade using machine broken hard blue granite broken stone jelly of 20 mm size including the cost and conveyance of all materials to work site, labour charges for fixing the same in position and including all other incidental charges, handling charges etc complete complying with standard specifications and as directed by the departmental officers

GST 18 % in Figures

S.BASKARAN