Water Resources Department Tender

Earth work excavating and depositing on bank with initial lead of 10m and initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc, complete complying with standard specification and as directed by the Engineer incharge of work.(SS.20B)

Earthwork excavation for foundation in hard stiff clay, stiff black cotton soil, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders hard gravelly soil inclusive of shoring to full depth, strutting and bailing out water wherever necessary and refilling the sides of foundation with excavated soil other than sand in layers of not more than 15 cm thick, well rammed, consolidated and depositing the surplus earth in places as shown by the departmental officers with an initial lead of 10 metres and initial lift of 2 metres and clearing, leveling the site etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Refilling with excavated earth (other than sand) with all leads and lifts for filling the open cut wherever necessary in layers including breaking clods watering and compaction using Power Roller to atleast 95% of Proctor Density at OMC in each layer and sectioning etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Collection and supply of Sand Gravel mix 1:1 (one CS sand and one gravel) ratio for basement including stacking, mixing and spreading the Sand Gravel mix in layers of not exceeding in 150 mm thickness over properly prepared surface, watering and consolidating the same with approved type of compaction equipment complete complying with the standard specification and as directed by the Engineer incharge of work.

Earthwork in all soils except hard rock requiring blasting and conveying with a lead of 0 to 100 metre by deploying earth moving machineries and tippers for formation of bund in layers of suitable thickness, depending upon type of compaction equipment deployed , and not exceeding 23 cm thickness, benching of slopes prior to placement of earth fill, including extra earth filling , breaking clods, watering to OMC and compaction of each layer to 95% of Proctor density through deployment of appropriate compaction equipment 8-10 tonne power roller; vibratory power roller; short width (+/-)0.90m width drum) power roller or vibratory power roller ensuring compaction of designed bund section and also ensuring compaction of earth fill and side slopes through the deployment of hydraulic excavators with steel plate fixtures attached to their booms/ heavy power rollers capable of climbing 2.00 (Horizontal) : 1.00 (Vertical) slope including side slopes complete complying with technical specification and as directed by the Engineer incharge of work.

Supplying R.C.C. pre cast demarcation post of size 0.15 x 0.15 x 1.20 m in Cement concrete M20 grade with well graded aggregates of nominal maximum size of coarse aggregate of size 20 mm and fixing the post 45 cm depth into the ground the post using 4 numbers of 8 mm RTS main rod to a length of 1.35m using 6 mm MS 9 numbers as stirrups with steel centering and painting the exposed surface of the post with synthetic enamel paint to a height of 0.75m alround the post etc., and conveying the post to the site of demarcation boundary such as tank bund and foreshore including earth work excavation for foundation in HSC, and embedding the post by using cement concrete M15 grade coarse aggregate of 20 mm over levelling course of M10 grade aggregate of 40mm complete complyling with standard specification and as directed by the Engineer incharge of work.

Providing and placing in position cement concrete of grade M15 for Plain cement concrete using hard well graded coarse aggregates of maximum nominal size of 40mm weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/sqmm at 28 days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary, laying the concrete in layers of not exceeding 15cm thick and in bays, compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work.

Providing and placing in position of plain cement concrete of grade M15 using hard well graded coarse aggregates of maximum nominal size of 40mm (60%) and 20mm (40%) weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/sqmm at 28 days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary, laying the concrete in layers of not exceeding 15cm thick and in bays, vibrating, compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work.

Providing and placing in position of plain cement concrete of grade M15 grade using hard well graded coarse aggregates of maximum nominal size of 20mm weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/sqmm at 28 days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary, placing concrete in layers and in bays vibrarting, compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work.

Providing and placing in position of plain cement concrete of grade M15 grade using hard well graded coarse aggregates of maximum nominal size of 20mm weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/sqmm at 28 days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary, placing concrete in layers and in bays, compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work.

Providing and placing in position of plain cement concrete of grade M20 using hard well graded coarse aggregates of maximum nominal size of 20mm weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20 N/sqmm at 28 days) including dewatering the placement site, by bailing/pumping and by diverting wherever necessary, laying the concrete in layers of not exceeding 15cm thick and in bays, compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work (For Wearing coat)

Providing and placing in position of Reinforced cement concrete of grade M20 using hard well graded coarse aggregates of maximum nominal size of 20mm weigh batching the incredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20 N/sqmm at 28 days) including dewatering the placement site, by bailing/pumping and by diverting wherever necessary, laying the concrete in layers of not exceeding 15cm thick and in bays, vibrating,compacting and finishing the surface to the profile with all leads and lifts, water curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with the standard specification and as directed by the Engineer incharge of work

Providing Steel Centering for RCC Slabs, beams or plain surfaces including strutting upto 3.29 m high using MS sheets, 10 guage thick of size 90cm x 60cm, Stiffened with MS angles of size 25mm x 25mm x 3mm laid over silver oak joists of size 10 cm x 6.5 cm spaced at 90 cm c/c and supported by casurina props of 10 cm to 13cm dia spaced at 75 cm c/c and removing the centering and shuttering after specified period without damaging the concrete laid etc., complete complying with standard specification and as directed by the Engineer incharge.(the retrieved materials should be taken back by the contractor). The payment for centering shall be given after the concrete is laid. (For Retaining walls and Sluices)

With strutting

Without strutting

Supplying and erecting water tight steel centering for sides and soffits including necessary supports with all cross bracing using Mild steel BG10gauge sheets of size 90x60cm stiffened with welded mild steel angles of size 25x25x3mm laid over silver oak(country wood)joists of size 75x5cm spaced at about 45cm c/c and supported by casurina props of 10cm to 13cm dia spaced at 75cm c/c for vertical plain concrete etc, complying with standard specification and as directed by the Engineer incharge of work. (The retrieved materials should be taken back by the contractor). The payment for centering shall be given after the concrete is laid for field bothies.

Supplying fabricating and placing in position of Ribbed Tor Steel bars of Various diameter for all reinforced cement concrete works including cost of rods, binding wire, labour charges for cutting the rods to the required length, bending, tying and fixing in position complete for various height and above ground level etc complete and complying with the standard specification and as directed by the Engineer incharge of work.

Supplying and fixing new cut stone fully dressed to size on all faces and set in cement mortar 1:3 (One cement and three CS sand by volume) including all incidental charges such as finishing, curing etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Supplying, hoisting, laying, jointing and fixing in position of RCC hume pipes of NP3 class of 900mm dia with suitable collars including labour and jointing materials etc, complete complying with standard specification and as directed by the Engineer incharge of work.

Plastering with Cement mortor 1:4- 12mm thick including curing, finishing etc, complete complying with standard specification and as directed by the Engineer incharge of work.

Providing and fixing weep holes of 110mm dia PVC pipes of working pressure 4Kg/sqm to required length for protection walls, abutments and wing walls etc, including cost of conveyance of all materials to work site including cost of labour charges for 90cm spherical back fill arrangements with 110mm dia and 20mm size hard granite broken stone charges at the periphery, the labour charges or fixing and to drain the backfill etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Providing and fixing best country wood plug with 50mm dia MS screw gearing rod 4m height supported on 2 Nos. of ISMB 125 RJ Joists of 1.80m length and guide beam 1 No. of the same size resting in turn of MS base plate of 50 X 30 mm size 6 mm thick with cast iron hexagonal head set and a collar plate of 300 X 300 X 6 mm thick fixed with necessary bolts and nuts and other fixtures etc, centre and bottom side covered with iron strap - 3 nos. Plate thickness size 3 mm steel plate. The plug hole size 10 cm to 25 cm dia. etc., including cost of rod, wrought and put up and fixing in correct alignment in position. The plug painted with two coats of Varnish, the rod painted with two coats of best anti-corrosive paint and conveyance to the work site including loading, unloading etc, complete complying specification and as directed by the Engineer incharge of work.

Charges for Geophysical resistivity survey at shaft site and Mazdoor employed for Geophysical investigation works complying with standard specification and as directed by the Engineer incharge of work

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc., by first taking a pilot bore of 140mm /150mm dia and then enlarging to required dia direct or reverse rotary mud and circulation method using rotary rig, fuel, labour for drilling, bentonite and water required for drilling at site. Upto 60m depth ending below ground level.

Reaming 140 /150mm dia pilot bore to 300mm dia bore as directed by the Engineer incharge of work. Upto 60m depth ending below ground level.

Supplying and inserting PVC Casing pipe assembly (with slots and without slots) in the drilled holes including jointing the pipes with PVC couplers using PVC adhesive etc., complete supplying and packing annular space with pebbles of size and quality as approved by the Engineer incharge of work.

160 mm dia casing pipe without slot

160 mm dia casing pipe with slot

Supplying and fixing of 160mm dia end cap for bore hole as directed by the Engineer incharge of work

Supplying and fixing of RCC Hume pipe of NP3 class of 900mm dia, vertically in position over the bore well pipe with a length of 2.00m below the ground level to make entry of water into filter media placed all around and recharge bore well pipe including all charges for fixing it at work site etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Supplying and filling with clean CS Sand in foundation and basement / Filter Zone with filling CS Sand in layers of not more than 15 cm thick well rammed, watered and consolidated etc., complete complying with the standard specification and as directed by the Engineer incharge of work.

Supplying and filling hard broken granite jelly of 40 mm for filter zone and spreading the jelly in layers of not exceeding 150mm thickness over properly prepared surface, including stacking for pre-measurement etc., complete complying with standard specification and as directed by the Engineer incharge of work.

Supplying and filling hard broken granite jelly of 20 mm for filter zone and spreading the jelly in layers of not exceeding 150mm thickness over properly prepared surface, including stacking for pre-measurement etc., complete complying with standard specification and as directed by the Engineer incharge of work.

GST 18%