04/NIT/CD-PB/AN/2025-26

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

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

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

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 (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for :

Foundations, footings, bases of columns, etc. for mass concrete

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Structural steel work in single section, fixed with or without connecting plate,including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete

Extra for using GI sections, ie angles, plates, flats etc instead of MS sections ie, angles , plates and flats for executing work vide item No 7

Recovering, seggregating and stacking GI section materials required for fully installing 1 No of 15 m Ground Based MARR Tower , from the materials dumped at different areas of BSNL store at Shaduipur, including cutting jungle for the required area , excavating GI tower sections covered under layers of earth, seggregating the members as per the approved list of tower materials , stacking them properly including all labour, equipments, tools and plants complete as directed by the Engineer in Charge

Loading and unloading of tower materials Six times as detailed below i)Loading From store yard on Truck ii) Unloading at Dungi Ghat Sipighat, port Blair from Truck iii)Loading on Dungi at Sippi Ghat iv)Unloading at Swaraj dweep Dungi ghat v)Loading on truck at Swaraj dweep Dungi Ghat vi)Unloading at work site CLS station Swaraj dweep

Transporting of tower materials from store yard to CLS Swaraj dweep as detailed below i)By Truck From store yard to Dungi Ghat Sipighat, port Blair ii)By Dungi from Sippi Ghat to Swaraj dweep Dungi Ghat iii)By Truck From Swaraj dweep Dungi Ghat to CLS Swaraj dweep

Supplying and fixing 16mm dia MS anchor bolt 550mm long with 125mm thread in one side for fixing to tower legs with GI double nuts, spring&pack washers and 100x100x5mm plate welded to other side for anchorage of bolt as per direction of the Engineer-in-charge.

Erection of 15Mtr Triangular MARR communication tower including cost of lifting and fitting in position, making necessary holes , welding as per requirement, cost of insurance etc all complete. (Note 1: Necessary safety measures shall be adopted while erecting the tower to ensure the safety of men and materials and adjacent properties). (Note 2: The safe custody of tower materials will be the responsibility of the agency from the time of handing over by department till the handing over of tower to concerned authorities.)

Providing and applying Synthetic Enamel paint of approved Brand and Manufacture over the Triangular MARR Communication tower as per following details . One coat of zinc chromate primer coating and two or more coats of enamel paint Orange/ White ( Standard Colors Specified for Communication Towers ) of approved brand and manufacture should be applied.) All works to be completed as per the Standard Specifications and according to the directions of the Engineer in charge