Water Resources Department Tender

Earth work excavation for desilting the existing rivers / canals / channels/odai/ nullas / drains/flood bowls/ tanks/ reservoirs etc., consisting of very loose soil, silt, oily silt, slushy, marshy, loany, organic soil, sea shell and flat mica particles with zero present air void in unhygienic & insanitary conditions in under water and not under water deploying earth moving machinery with suitable floats buoys barge/ hydraulic excavator & other mechanical devices including the cost of hire charges for machinery, with cost of skilled operators with helper & cleaners for the entire operations to reach the banks in which the removed silt & sludge has to be dumped over either one of the rivers / canals / channels/odai/ nullas / drains/floods bowls / tanks / reservoirs etc, bank whichever is convenient as per the prevailing site conditions for easy conveyance and including jungle clearance etc.. complete (Rate excluding conveyance to dumping yard or low lying area)

Conveyance by roads in plains 0 to 5KM including Loading unloading and transportation charges of excavated silt in unhygeic& in sanitary condtions to the dumbing yard or low llying areas as directed by the field Engineer's by deploying the earth moving machinery, hydraulic excavator,tipppers& other mechanical devices including the cost of hire charges for Machinery,with skilled operators with helper & cleaner, including leveling etc

Earthwork excavation for foundation (with Narrow cutting)Earth work Excavaction for foundation in hard stiff clay,stiff black cotton soil, Hard red earth, shales, murrams, gravel, stoney earth and earth mixed small size blouders and hard grvelly soil depositing on bank including shoring strutting and bailing out water wherever necessary, well rammed consolidated and deposting the surplus earth in places as shown by the depar tmental offices with an initial lead of 10metres and initial left of 2 metres and clearing, levelling the site etc., complying with standard specification and as directed by the departmental officers.

Earthwork excavation for foundation (open excavation)Earth work Excavaction for foundation in hard stiff clay,stiff black cotton soil, Hard red earth, shales, murrams, gravel, stoney earth and earth mixed small size blouders and hard grvelly soil depositing on bank including shoring strutting and bailing out water wherever necessary, well rammed consolidated and deposting the surplus earth in places as shown by the depar tmental offices with an initial lead of 10metres and initial left of 2 metres and clearing, levelling the site etc., complying with standard specification and as directed by the departmental officers.

Earthwork for formation of bund with 7km LeadEarthwork in all soils except hard rock requiring blasting and conveying earth by deploying earth moving machinery and tippers for formation of bund with a lead of 4km in layers of suitable thickness, depending upon type of compaction equipment, and not exceeding 25 cm thickness, benching of slopes prior to placement of earth fill, breaking clods, watering to OMC (Optimum moisture content) and compaction of each layer to 95% Proctor density through deployment of appropriate compaction equipment (8-10 T power roller / vibratory power roller / short width (+/- 0.90n width drum) power roller or vibratory power roller / fuel-operated or electrically operated vibratory plate compactors, 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 including 11/2(H):1(V) slope including side slopes as directed by the engineer in charge of works and as per technical specifications.with a lead of 7km (Canal Bank formation) includes Mineral and seigniorage fee

Earth Works for formation of bund with watering & Consolidation Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 0-100m deploying earth moving machineries and tippers including benching, formation of bunds, breaking clods sectioning, compaction with Power roller etc., complete

Suppling and filling with M.sand for filling in layers of not more than 15cm thick well rammed with water complying with standard specification and as directed by the departmental officers.

Refilling with excavated earth (other than sand) with watering and consolidation using hand roller complying with standard specification

P.C.C. - M15 - 40mm (With Vibration)Providing and placing Plain Cement Concrete M 15 grade using well graded aggregates of nominal maximum size of 40mm and downgraded to I.S specified grading ( To achieve the specified charaterstics strength of 10N/mm² in 28 days ) and mixing the ingredients in approved mixer including dewatering of the placement site by bailling / pumbing and diverting wharever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

P.C.C. - M15 - 40mm (Without Vibration)Providing and placing Plain Cement Concrete M 15 grade using well graded aggregates of nominal maximum size of 40mm and downgraded to I.S specified grading ( To achieve the specified charaterstics strength of 10N/mm² in 28 days ) and mixing the ingredients in approved mixer including dewatering of the placement site by bailling / pumbing and diverting wharever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

P.C.C. - M15 - 60% 40mm & 40% 20mmProviding and placing Plain Cement oncrete M 15 grade (1:2:4) using well graded aggregates of nominal maximum size of 60% of 40mm and 40% of 20mm I.S specified grading (To achieve the specified charaterstics strength of 10N/mm² in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by bailling / pumping and diverting wharever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

P.C.C. - M15 - 60% 40mm & 40% 20mm Below Ground Level (Beyond 1.5m upto 4.5m depth) Providing and placing Plain Cement oncrete M 15 grade (1:2:4) using well graded aggregates of nominal maximum size of 60% of 40mm and 40% of 20mm I.S specified grading ( To achieve the specified charaterstics strength of 10N/mm² in 28 days ) and mixing the ingredients in approved mixer including dewatering of the placement site by bailling / pumping and diverting wharever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

P.C.C. - M15 - 60% 40mm & 40% 20mmAbove Ground Level (Above 1.0m upto 4.5m depth) Providing and placing Plain Cement oncrete M 15 grade (1:2:4) using well graded aggregates of nominal maximum size of 60% of 40mm and 40% of 20mm I.S specified grading ( To achieve the specified charaterstics strength of 10N/mm² in 28 days ) and mixing the ingredients in approved mixer including dewatering of the placement site by bailling / pumping and diverting wharever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

P.C.C. - M20 - 20mm (without vibration)Providing and placing Plain Cement oncrete M 20 grade (1:1½:3) using crusher broken hard coarse aggregate (well graded) of nominal maximum size of 20mm and downgraded to I.S specified grading (To achieve the specified characteristic strength of 20N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary, placing concrete in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

R.C.C. - M20 - 20mm (Using 60% Super Plasticiser) (with vibration)Providing and placing Reinforced Cement oncrete M 20 grade (1:1½:2) using hard well graded aggregates with the nominal maximum size of coarse aggregate of 20mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating, compacting and finishing, adequate water curing so as to attain the profile and strength specified in the approved drawing and specifications etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Supplying, fabricating and placing in position of HYSD ( High Yeild Strength ) bars for all reinforced cement concrete works including cost of binding wire, steel rods, conveyance charges and labour charges etc., complete, complying with standard specifications and as directed by the Engineer in charge of work

Supplying and erecting water tight steel centering (with Strutting) for sides and soffits including necessary supports and shuttering including strutting for retaining wall and all RCC works such as column, footing, plinth beam, etc., upto 3.29m height and all cross bracings using mild steel BG 10 sheets of size 90cm x 60cm gauge stiffeded with welded mild steel angles of size 25x25x3mm for boarding laid over silver oak ( country wood ) joits of size 10x6.5cm spaced at about 90cm centre to centre and suitably supported by casurina props of 10cm to 13cm dia spaced at 75cm centre to centre including cost of materials etc., complete complying with standard specification as directed by the departmental officers the payment for centering shall be given after the concrete is laid and the retrived materials should be taken back the contractor.

Supplying and erecting water tight steel centering (without Strutting) for sides and soffits including necessary supports and shuttering including strutting for retaining wall and all RCC works such as column, footing, plinth beam, etc., upto 3.29m height and all cross bracings using mild steel BG 10 sheets of size 90cm x 60cm gauge stiffeded with welded mild steel angles of size 25x25x3mm for boarding laid over silver oak ( country wood ) joits of size 10x6.5cm spaced at about 90cm centre to centre and suitably supported by casurina props of 10cm to 13cm dia spaced at 75cm centre to centre including cost of materials etc., complete complying with standard specification as directed by the departmental officers the payment for centering shall be given after the concrete is laid and the retrived materials should be taken back the contractor.

Plastering with cement mortar 1:4 (One cement and four sand ) 20 mm thick - 10m2 including curing, finishing etc., complete complying with the standard specification

Providing Construction Contraction and Lift Joints in masonry Concrete with PVC water stopper of 230mm thick including cutting, jointing and placing mastic pad of 20mm thick with mastic filling as specified in the drawings etc.. Complete complying with the standard specification and as directed by the Engineer in charge of the work- for weir portion (1.04kg Asphalt and 0.60 Sqm of Mastic pad required for 1RM)

Providing and fixing weep holes of 110mm dia PVC pipes of working pressure 4 kg/sqcm to required length for protection walls, abutments and wingm 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 peripery, the labour charges or fixing and to drain the backfill etc., complete complying with standard specification as directed by the departmental officers.

Supplying demarcation R.C.C. pre cast posts in Cement concrete of grade M20 with well graded aggregates and the nominal maximum size of coarse aggregate of size 20 mm of size 0.15 x 0.15 x 1.20 M and fixing the post 40 Cm depth below ground level, the post includes using 4 numbers of 10 mm RTS main rod to a length of 1.325 M, using 8 mm MS 10 numbers as strips with steel centering and painting the post with enamel paint to a height of 0.80 M around the post etc. complete and conveying the post to the site of demarcation boundary such as tank bund and foreshore including earth work excavation for foundation in HSC having the base plain cement concrete of 10 cm of grade M10 concrete using hard blue granite broken stone of 40mm , complete as directed by the Engineer in charge of works and as per the technical specifications.

Supplying and spreading gravel for improvements to jeeptrack to a consolidated thickness of 300mm in layers of 150mm thick each ( two layer) including cost and conveyence of good quality of gravel to work site and stacking them to the standard department gauge for pre meaurement including llabour charges for spreading gravel , as directed by the Engineer etc., complete complying with standarf specification.

Supplying , Laying and fixing in position of R.C.C. Hume pipes of NP3 class of 900mm Dia with suitable collars including labour charges and jointing materials etc., complete complying with standard specification and as directed by the departmental officers complying with standard specification and as directed by the departmental officers 900mm dia Hume pipe NP3

Fabricating, supplying and erection of Screw Gearing Steel Shutters of Size 1.20 X 1.50 M width consist of Skin plate made out of 8mm thick Mild Steel plate and horizontally stiffened with 100x50mm mild steel channel at an interval not more than 0.50m and vertical stiffeners made out of same section at an interval not more than 0.60m and provided with 8mm thick lifting plate for holding Screw rod from Shutter by Bolt and nut joints , the Screw rod is made out of 63mm dia machining by square thread of pitch 25mm for full length of the rod Machining suitable for cast iron hoist Nut the hoist CI head set is properly machined for smooth operation. Hoisting arrangement positioning on the top beam made up of ISMB150 for required length, etc. Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent.. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red oxide primer. The rate including cost of materials, consumables, labours, power charges, conveyance charges, charges for all equipment required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and Excluding all taxes etc., complete

Towards the payment of Mineral charges, Seigniorage fee, Green fund, District mineral fund and tax on Mineral Bearing Land for formation of flood bank to be paid to Revenue Department through the contractor etc., (Excluding cost of Earthwork excavation, conveyance and forming flood bank). (Ref: 1.G.O. 4 Natural Resources (MMC - 1) Department dated 22.08.2023, 2.G.O. (Ms) No 23. Industries (MME - 1), Department dated 23.02.2022, 3.Tamilnadu Mineral Bearing Land Tax Act,2024.

GST 18%