Urgent protection from Flood damage of approach steel bridge of intake well at Harinmara under DWS Division Ambassa

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed.In all kinds of soil.

i) In cement mortar 1:4 ( 1 cement : 4 fine sand )

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

1:3:6 ( 1 Cement: 3 fine sand : 6 graded well burnt brick aggregate 40 mm nominal size)

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering. All work upto plinth level: 1:2:4 (1 cement: 2 fine sand:4 graded well burnt brick aggregate 20 mm nominal size)

12 mm cement plaster on the rough side of single or half brick wall of mix. 1:4 (1 cement: 4 fine sand)

Neat cement punning.

Providing & laying filter media with jhama brick aggregates as per specification to a thickness of not less than 600 mm with smaller size towards the soil & bigger size towards the wall & providing over the entire surface behind abutment, wing wall, return wall to the full height, compacted to firm condition complete as per drawing and MoRT&H technical specification clause 2504.2.2