Construction of a Bed Dam across Cauvery River at mile 73/53 in Kadalangudi Village of Kuthalam Taluk at Mayiladuthurai District.

Amount

Earth work open excavating for foundation in all kinds of soils and sub soils and depositing on bank with initial lead of 10 m and initial lift of 2m except hard rock requiring blasting to full depth as may be directed inclusive of shoring strutting, bailing out water wherever necessary and refilling the sides of foundation with excavated earth as per standard specification and as directed by the departmental officers.

A) Up to 2.00m

B) From Bed Level 2.00m to 3.00m

Refilling with excavated earth other than sand with an initial head load of 100 m and depositing the earth as shown by the departmental officer in layers of not more than 15 cm thick well rammed, watered and consolidated etc., complete complying with standard specifications and as directed by the departmental officers.

Supplying and filling with M.sand in layers of not more than 15 cm thick including watering, consolidation etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling in foundation with M.sand Gravel mix in ratio of 30:70 in layers of not more than 15cm thick thoroughly mixed, well watered, rammed and consolidated etc.,complete complying with standard specification and as directed by the departmental officers.

Providing and placing Plain Cement Concrete M10 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 40mm to I.S specified grading (To achieve the specified characteristic strength of 10N/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 in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete complying with standard specification and as directed by the departmental officers.

A) Below ground level Up to 1.50m depth

B) Below ground level from 1.50m to 4.50m depth

Supplying and erection of steel centering for sides and soffits without strutting for plain surface with all cross bracings using mild steel sheets of size 90x60cm. And B.G. 10 stiffened with welded M.S. angles of size 25x25x3 mm for boarding laid overcountry wood joists of size 10x6.5cm spaced 90cm. Centre to centre etc.,complete complying with standard specification and as directed by the departmental officers.

Supplying and erection of steel centering for sides and soffits with strutting upto 3m height for plain surface with all cross bracings using mild steel sheets of size 90x60 cm. And B.G. 10 stiffened with welded M.S. angles of size 25x25x3 mm for boarding laid overcountry wood joists of size 10x6.5cm spaced 90cm. Centre to centre and supported by casurina props of 10 to 13 cm dia (spaced at 75cm. c/c) etc.,complete complying with standard specification and as directed by the departmental officers.

Supplying and fabricating and placing in position of RTS grill for reinforced cement concrete including cost of steel and binding wire and labour charges for bending, cutting etc.,complete complying with standard specification and as directed by the departmental officers.

Providing and placing Plain Cement Concrete M15 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 20mm down graded to I.S specified grading (To achive the specified characteristic strengh of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer of the placement site by baling / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength specified in the approved drawing and specifications, etc., complete complying with standard specification and as directed by the departmental officers.

A) Below ground level Up to 1.50m depth

B) Below ground level from 1.50m to 4.50m depth

Providing and placing Plain Cement Concrete M15 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of using 60% of 40mm and 40% of 20mm down graded to I.S specified grading (To achive the specified characteristic strengh of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer of the placement site by baling / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strengh specified in the approved drawing and specifications, etc., complete complying with standard specification and as directed by the departmental officers.

A) Below ground level upto 1.50m depth

B) Below ground level from 1.50m to 4.50m depth

C) Above ground level upto 4.50m depth

Providing and laying in position, Standardised Concrete Mix M-25 Grade in accordance with IS456:2000, using 20mm and downgraded hard broken granite stone jelly for all RCC items of works with minimum cement content of 350kg/m3 and maximum water cement ratio of 0.50, including admixture (palsticiser/super plasticiser) in recommended proportions as per IS9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 cu.m) 7730 Kg of 20mm machine crushed stone jelly and with about(3.3 cu.m) 5156 kg of 10-12mm machine crushed stone jelly and with about(4.79 cu.m) 7670 kg of sand, but excluding cost of reinforcement grill and fabricating charges, centring and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc., and providing fixture without claiming etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No seperate payment will be made by the Deaprtment for the excess usage of materials) (Above ground level upto 4.50 m depth)

Manufacturing, supplying and fixing of cement concrete blocks of size 1.50x1.50x0.9 M in M15 using 40mm and 20mm hard broken granite stone jelly including cost of moulding charges, casting of slabs, finishing, curing and fixing in position and transportation etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling in position of 40cm thick graded metal using 12mm, 20mm,40mm and 50 mm Hard Blue Granite jelley for longitudinal and transverse filter etc., complete complying with standard specification and as directed by the departmental officers.

Gravel packing for Revetment and block protection including cost of materials, conveyance and all labour charges, lead and lifts etc., complete as directed by the departmental offcers.

Supplying and filling loose boulders of Size more than 300mm and weight more than 40kg in U/S and D/S apron using including conveyance,cost of materials etc., complete complying with standard specification and as directed by the departmental officers.

Rough stone dry packing using new rough stones for talus apron and revetments etc., including cost of Rough stones, conveyance Labour charges etc., complete as per standard specification and directed by the departmental officers.

Supplying and fixing in position of seepage pipes of 63 mm dia PVC pipe with standing working pressure of 6 Kg/cm2 required lengths with required filter media (excluding the cost of filter media) for abutment and wings including cost and conveyance of all materials to work site and labour charges for fixing etc.,complete complying with standard specification as directed by the departmental officers.

Providing Filter media arrangements to the weep holes in the rear side of retaining wall for a size of 45cmx45cmx60cm and filling with 20mm metal of 30cm thick in Ist layer and 40mm metal of 30cm in IInd Layer the rate is including cost of metals etc complete complying with standard specification and as directed by the Departmental officers.

Supplying and Fixing of PVC Water bar 150mm wide with single bulp including cost of required accessories as directed by the departmental officers.

Supplying and Fixing of Expansion Board (water proof) 12mm thick including cost of required accessories at suitable Intervel as directed by the departmental officers.

Dewatering using 5 HP Diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, Pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidential charges etc., complete complying with standard specification and as directed by the departmental officers.

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bunds with a lead of 10Km deploying earth moving machinery and tippers including benching, formation of bunds, breaking clods, sectioning, with watering and consolidation in layers of not more than 15cm thick etc., complete complying with standard specification and as directed by the departmental officers.

Regrading the river bed (for regrading 100 cum using dozer D-50-A15) including jungle clearance depolying the heavy machinery on hour basis including cost of hire charges, fule etc., complete as per standard specification and as directed by the departmental officers

VENKATESAN S (BID ID -1246780)