Construction of New Over Head Tank (60000 litre Capacity) at Erumanur Panchayatat Vridhachalam Block in Cuddalore District

Earthwork excavation and depositing on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by Deparment officers. Hard stiff clay, block cotton, hard red earth shales, murram, ordinary gravel, stoney eart First depth of 2m

Second Depth. OF 2m from 2m to 4m below GL For column footing

Sand filling for foundation with clear river sand including cost of sand watering, ramming and consolidation etc

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for foundation including the cost of mixing concrete, ramming, curing etc., complete as directed by Department officers.

RCC in M30 GRADE using graded aggregtes of HBGs excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc., complete as directed by Department For footing below G.L. ( 1,50 to 4,50 below GL )

For Column and Brace upto G.L ( 0 to1,50 below GL )

For column and brace I 0 to 4.5m from GL

For column and brace II 4.5m to 7.32m from GL

For column and brace III 7.32 to 10.98m from GL

For column and brace IV 10.98 to 14.64m from GL

For column and brace V 14.64 to 18.3m from GL

Supplying Fabricating and Placing in Possition of HSD Steel rods for Reinforcement including cost of Steel and binding wire etc.

Supplying and Erecting Steel Centering for sides and soffits including necessary supports and shuttering to the required height for R.C.C. ITEM Using M.S.Sheets including labour charges etc. Below Ground Level. 0 to 3.30 m

For Brace I 0.0. to 3.30 m

For Brace II 3.3. to 4.30 m

For Brace II 5.3. to 6.30 m

For Brace III 8.3. to 9.30 m

For Brace III 11.30. to 12.30 m

Curved surface 0 to 3.30m

03.30 to 04.30m For

SQUARE COLUMN For column GL 0 to 3.30M

For column ( 3.31m to 4.30m ).

For column ( 4.31m to 5.30m).

For Column (5.31m to 6.30m )

For Column (6.31m to 7.30m )

For Column (7.31m to 8.30m )

For Column (8.31m to 9.30m )

For Column (9.31m to 10.30m )

For Column (10.31m to 11.30m )

For Column (11.31m to 11.45m )

Painting two coats with approved cement paint over one coat of priming coat over cement plastered exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by Deparment officers

Fabrication, supply,delivery and fixing of out side MS Ladder of 45cm wide made out of 50x50x6 mmMS angle for sides and steps in 16mm MS Plain rod fixed at 30cm centre tocentre welded, jointedetc,Providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint etc.

Providing and fixing of R.C.C. inner access ladder in R.C.C. 1:1.5:3 mix using 20mm ISS Metal including cost of reinforcement ,placing in grill in possition ,centering,shuttering charges mixing concrete curing etc.

Providing Ac vent cowl arrangements mosquito proof nylon net with 110mm dia Cowl etc.

Providing Cut Stone Slab in cm 1:3 mix

Providing man hole cover of size 0.60x0.60 in R.C.C. 1:1.5:3 mix with suitable reinforcement, 50x50x6mm MS Angle fixed along edges etc.

Provision for pipe connection arrangements for inlet, outlet, scour and overflow etc., including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality enamel paint etc. complete as detailed below. 65mm dia GI pipes for inlet connection.

65mm dia GI elbow

65mm dia GI Flange set

65mm dia GI coupling

80mm dia GI pipes

90mm dia PVC Threaded coupler

80mm dia GI Tee

80mm dia GI elbow

80mm dia GM Gate valve

80mm dia GI Flange set

80mm dia GI coupling

80mm dia GI Dummy

Labour charges for GI pipe connection to the OHT , for inlet,outlet,overflow and scour arrangements including cutting and threading earth work excavation and refilling

Providing hand rails over the roof slab by using 32mm GI pipe with 40mm x 6mm MS flat and fixed with 12mm dia fastner bolt 75mm long and as directed by TWAD officers

As per item l(a) + l(b) Less item 2,3 & 4A & 4B Total

Earthwork excavation and depositing on bank with an intial lesd & lift in hard stiff clay, gravelly soil, shales, murrams earth mixed soil as per SS 20 B for foundation

Sand filling with good river sand including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Cement concrete in 1:4:8 mix using 40 mm metal used for foundation including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Cement concrete in 1:2:4 mix using 20 mm metal used for Wearing Coat including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Brick Work in Cement Mortar 1:5 using Country Bricks including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Plastering with cement mortar 1:3mix to 12mm thick including cost and conveyance of all materials to site and all labour charges etc complete.

Filling the stones in soakpit incluiding the cost and conveyance of materials 40mm

Filling the stones in soakpit incluiding the cost and conveyance of materials 20mm

Rcc Precast rings

Ring and RCC Cover Slab

Earth Excavation and depositing on bank for with an initial lead and lift in all type soil for pipe line for 75mm (6KSC)dia pipe

Supply of unlasticised 75mm OD PVC/6ksc rigid Pipes as per BIS 4985/2000 with ISI Marking to site of works 75mm PVC /6sc Pipe

75mm PVC specials a)75mm Elbow

Lowering and Laying of the 75mm dia PVC pipes and secials to trench ,laying to proper grade and alignment,jointing with PVC coupler and specials fixing with solvent cement paste etc., complete

Re-filling with excavated soil complying with standard specification in layers of 15cm thick well rammed and consolidated after ipes and specials are laid and tested

Provision for Name board

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