NIT No.49/EE(SM)/2025-26

Conducting SUE Survey in a corridor of 4-6 meter width to detect buried utilities like pipes, cables etc. in such corridor. Making of the detected utilities on the map of corridor with information of locations and depths to the top of various utilities detected. Onsite detection to be conducted using minimum tools of Electronic Pipe Locator (EPL) and Ground Penetrating Radar (GPR). GPR work to be conducted using MHz and 300 MHz antenna for best possible resolution and penetration. The specifications are SUE survey should be in accordance with ,Code of Practice for Subsurface Utility Engineering Suiting Indian Conditions – Guidelines & Specifications for Detection, Verification & Depiction of Existing Subsurface Utility Data’. (A) Road crossing without dividers 30 m width.

(B) Road crossing with dividers upto 50 M width

Horizontal Directional Drilling for Steel Ducts/HDPE DWC Pipes Installation of Steel/DWC product pipe by HDD method including preparing and setting up the plant and equipment, preparing new pipe-work material, installing new pipe-work and commissioning system or making the system ready for commissioning by HDD operation including, all related civil and mechanical works like excavation, shoring/strutting, etc. drilling. stringing, reaming, and pulling back the new pipe-work on the designed bore path alignment, proper disposal of drilling fluid and back fill of site after completion all inclusive as per IndSTT:101-2018: Code of Practice for Horizontal Directional Drilling Technique Suiting Indian Conditions. Steel/ HDPE DWC pipes above 200mm and upto 300mm dia. In mixed soil

Providng and laying and jointing 250 mm internal dia HDPE DWC pipe SN-8 IS : 16098 PART-2 and entire satisfaction of Engineer-in-Charge

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.(a)All kinds of soil

Extra for every additional lift of 1.5 or part thereof in excavation /banking excavated or stacked materials - All kinds of soil

Providing and Laying Cement Concrete of Specified grade excluding the cost of centring and shuttering-All works up to Plinth Level. 1:5:10 (1 cement : 5 manufactured sand derived from Recycled Concrete Aggregate (RCA) : 10 graded stone aggregate 40 mm nominal size Recycled Aggregate (RA)

Constructing brick masonry circular type manhole 0.91 m internal dia at bottom and 0.56 m dia at top in cement mortar 1:4 (1 cement : 4 coarse sand), inside cement plaster 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with a floating coat of neat cement, foundation concrete 1:3:6 mix (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size), and making necessary channel in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement, all complete as per standard design : 0.91 m deep with S.F.R.C. cover and frame (heavy duty, HD-20 grade designation) 560 mm internal diameter conforming to I.S. 12592, total weight of cover and frame to be not less than 182 kg., fixed in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) including centering, shuttering all complete. (Excavation, foot rests and 12 mm thick cement plaster at the external surface shall be paid for separately) : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5.

Extra depth for circular type manhole 0.91m internal dia (at bottom) beyond 0.91 m to 1.67 m: With common burnt clay F.P.S. (non modular) bricks of class designation 7.5.

Constructing brick masonry circular manhole 1.22 m internal dia at bottom and 0.56 m dia at top in cement mortar 1:4 (1 cement :4 coarse sand) inside cement plaster 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with a floating coat of neat cement foundation concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) and making necessary channel in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement, all complete as per standard design 1.68 m deep with SFRC Cover and frame (heavy duty HD- 20 grade designation) 560 mm internal diameter conforming to I.S. 12592, total weight of cover and frame to be not less than 182 kg. fixed in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) including centering, shuttering all complete. (Excavation, foot rests and 12 mm thick cement plaster at the external surface shall be paid for separately) : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Extra depth for circular type manhole 1.22 m internal dia (at bottom) beyond 1.68 m to 2.29 m : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

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

Providing orange colour safety foot rest of minimum 6 mm thick plastic encapsulated as per IS : 10910, on 12 mm dia steel bar conforming to IS: 1786, having minimum cross section as 23 mmx25 mm and over all minimum length 263 mm and width as 165 mm with minimum 112 mm space between protruded legs having 2 mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standard drawing and suitable to with stand the bend test and chemical resistance test as per specifications and having manufacture’s permanent identification mark to be visible even after fixing, including fixing in manholes with 30x20x15 cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) complete as per design

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.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

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