GENERAL-Nava kerala Sadass-Upgradation of Coastal Road and Side protection work from Kondeth Bridge to kottoor via Pallineru in Eravipuram LAC of Kollam District

2.6.1:Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge.All kinds of soil

16.96:Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012,MORTH Clause 2500, of required size, Mesh Type 10x12(D=100 mm with tolerance of ±2%), Zinic+10%Al alloy+PVC coated, Mesh wire diameter 2.7/3.7mm (ID/OD),mechanically edged/selvedged with partitions at every 1m interval and shall have minimum 10 numbersof openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter2.2/3.2mm(ID/OD), supplied @3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing, all complete as per directions of Engineer-in-charge

5.1.2:Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level:1:1:5:3 (1 cement 1.5 coarse sand :3 graded stone aggregate 20 mm nominal size derived from natural sources)

5.22.6:Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

5.9.2:Centering and shuttering including strutting, etc. and removal of form for:Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

2.25:Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

OD5681/2025-2026:Casting of Cement Blocks using graded metal 40%of 75mm to 40mm,30%of 40mm to 20mm, 30%of 20mm to 6mm, using average 380kg of cement per m3 as per approved mix design of mix proportion 05:1:1.46:3.22 by weight of water cement,fine aggregate, coarse aggregate(specific gravity of fine aggregate and coarse aggregate should not be less than 2.73 and 2.5 respectively) and the cement shall be of 43 grade or higher minimum cube strength requirement 1) @ 7 day 20N/mm2 (2)@28 day 30N/mm2 and min density of concrete 2.5 gm /cc as per the directions of departmental officers at site.

OD5682/2025-2026:Lifting , conveying the cement concrete blocks from casting yard to site and placing in position in layers in lines and levels as per the direction of departmental officers at site

65.5:20T capacity crane