Improvement of Drainage at Dibrugarah Town, Phase-I

Amount

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. 2.6.1 All kinds of soil

Open timbering over areas including strutting, shoring etc. complete.(Measurements to be taken of the face area timbered): 2.22.1 Depth not exceeding 1.5 m

Open timbering over areas including strutting, shoring etc. complete.(Measurements to be taken of the face area timbered): 2.22.2 Depth exceeding 1.5 m but not exceeding 3 m

Dry brick pitching half brick thick in drains including supply of bricks and preparing the surface complete : 16.12.1 With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 4.1.3 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 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 : 5.1.2A 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) incuding manu factured sand derived from Recycled Concrete Aggregate (RCA) upto 20% : 3 graded stone aggregate 20 mm nominal size of Recycled Concrete Aggregate (RCA) upto 20%.

Centering and shuttering including strutting, propping etc. and removal of form for 5.9.1 Foundations, footings, bases of columns, etc. for mass concrete

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

Centering and shuttering including strutting, propping etc. and removal of form for 5.9.3 Suspended floors, roofs, landings, balconies and access platform

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level 5.22.3 Cold twisted bars

Lakhi Chutia (BID ID -257256)

Ranjan Dutta (BID ID -257217)