FDR_SDRF_Protection of right bank of Noacherra to prevent erosion by providing cement concrete block at Near Nalchar Bazar RCC bridge and Maintainence of diversion scheme at Nalchar RD Block under W.R. Sub-Division Melaghar during the year 2024-25.

Manufacturing of Cement concrete Block with mix 1:4: 8( 1 Cement : 4 River sand : 8 Jhama brick agreegate of 40 mm nominal size) including centering & shuttering of size 0.45 m X 0.45 m X 0.30 m and engraving the serial number of each block as per direction of the Engineer - in- Charge.

Placing of sand cement/cement concrete blocks of size 0.45m X 0.45m X 0.30m in slope of river bank and in river bed including preperation of bed or launching apron as per direction of the Engineer - in- Charge. Cement concrete block

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. All kinds of soil (Approx.)

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 upto 1.5 m. All kinds of soil (Lumpsum)

Construction of Embankment with Material Obtained from Borrow Pits Construction of Embankment with approved material obtained from borrow pits with all lifts, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300.1 and 300.2 with a lead upto 1000 m as per MoRT &H Technical Specification clauses of section 300

Providing and placing gunny/ polythene (of minimum wall thickness of 500 micron) bags filled with sand (of minmum qty of 0.034 cum) and properly manually stitched to avoid any leakage of sand as per specification In Front of Gate Shutter and wing wall of Noacherra Diversion Scheme

Demolishing brick work including stacking of serviceable materials and disposal of unserviceable materials with all lifts and upto a lead of 50m etc. complete as per direction of the Engineer- in-charge:- In cement mortar

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for replastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc.complete as per direction of the Engineer- incharge. Brick work of Noacherra Diversion scheme

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

Neat cement punning.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - -All work upto plinth level: a)1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size) Base of Shutter Gates

Sealing of cracks/ porous concrete by injection process through nipples/ Grouting complete as per drawing and MoRT&H Technical specifications clause 2806. B. Cement Mortar (1:1) grout

First class brick work in foundation and plinth including cost of all materials as required complete:- In cement mortar 1:4 ( 1 cement : 4 fine sand ).