CASUAL SEWER LINE REPAIR WORK AT VARIOUS LOCATIONS IN WARD NO. 7, 8, 14 TO 22 OF VIDYADHAR NAGAR ZONE (UNDER ANNUAL RATE CONTRACT FOR THE YEAR 2026-27)

(17.1.1.1) Earth work for Sewer line and Manhole in excavation in foundation, trenches manholes, road side chambers etc. including dressing of sides and ramming of bottoms, including getting out the excavated material, refilling after laying pipe/ foundation and disposal of surplus excavated material at a lead upto 50m suitable site as per direction of Engineer for following depths, below natural ground / Road top level including allowances for any additional excavation beyond the drawings (measurement for payment to be as per standard drawings), re-handling of material/earth to complete the task.In all types soils/ saturated soil such as moorum, sand, sandy silt, clay, black cotton soil, kankar, etc Depth upto 1.5 m

(17.1.1.2) Add extra for overall depth of excavation above 1.5 m and upto 3.0 m over item no 17.1.1.1

(17.1.1.3) Add extra for overall depth of excavation above 3.0 m and upto 4.5 m over item no 17.1.1.1

(32.35.1) Add extra for overall depth of excavation above 4.5 m and upto 6.0 m over item no 17.1.1.1

(17.9) Dismantling of cement concrete pavement for sewer line and manholes by mechanical means using pneumatic tools, cutting the peripheral edge by CC cutter, breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials up to a lead of 1000 metres including allowances for any additional dismantling beyond the drawings (measurement for payment to be as per standard drawings), rehandling of material/earth to complete the task

(1.1.1) Carriage of Materials by mechanical transport including loading, unloading and stacking Earth 5km

(1.1.3) Carriage of Materials by mechanical transport including loading, unloading and stacking stone,boulders,gravelly material 5km

(17.3.1) Providing and fixing CLOSE timbering in trenches of sewer line and manholes including strutting, shoring and packing cavities (wherever required) complete. (Measurements to be taken of the face area timbered) for following depth below NGL.Depth upto 3.0 m

(17.19.7) 450 mm internal diameter

(17.19.8) 500 mm internal diameter

(17.19.9) 600 mm internal diameter

(17.19.10) 700 mm internal diameter

(17.19.12) 900 mm internal diameter

(17.32.7) 450 mm internal diameter

(17.32.8) 500 mm internal diameter

(17.32.9) 600 mm internal diameter

(17.32.10) 700 mm internal diameter

(17.32.12) 900 mm internal diameter

(17.60.1) Pre-cast RCC M-40 grade circular manhole conical piece with inbuilt cover and frame (height 1.005), cast-in-situ PCC M-10 grade foundation, PCC M15 grade circular wall ID 1.125m, wall thickness 200mm, wall height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm, PCC M15 grade benching and channel portion. Depth of manhole shall be measured from top of manhole cover upto lowest invert of pipe. (Depth includes in the item = height of Conical piece + ID of Sewer pipe + 1 Wall thickness of pipe + increased height of wall (if any) + 50mm)

(17.60.2) Providing and fixing pre-cast RCC M-40 grade circular ring of ID 1.2m, wall thickness 125mm, height 150/225/300/600/900mm for constructing extra depth of manhole beyond depth mentioned in item no-17.60.1 as per drawing

(17.61.1) Pre-cast RCC M-40 grade circular manhole conical piece with inbuilt cover and frame (height 1.305), cast-in-situ PCC M-10 grade foundation, PCC M15 grade circular wall ID 1.425m, wall thickness 200mm, wall height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm, PCC M15 grade benching and channel portion. Depth of manhole shall be measured from top of manhole cover upto lowest invert of pipe. (Depth includes in the item = height of Conical piece + ID of Sewer pipe + 1 Wall thickness of pipe + increased height of wall (if any) + 50mm)

(17.61.2) Providing and fixing pre-cast RCC M-40 grade circular ring of ID 1.5m, wall thickness 125mm, height 150/225/300/600/900/1200mm\ for constructing extra depth of manhole beyond depth mentioned in item no-17.61.1 as per drawing.

(4.25) Providing Barricading for Trenches using 80 - 100 mm dia Wooden Ballies as vertical post, atleast 1.5m above ground level and atleast 30-45 cm below ground level at a spacing of 3 m. Two rows of PVC Tape (preferably red in colour) strip barricading horizontal strip securely tied by the vertical members. Vertical members shall be painted in red and white colour. Rate is inclusive removal and cleaning of site complete in all respect.

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

(17.74.1) Temporary bypassing of sewer including Plugging the mouth of pipe/s inside sewer manhole using suitable plugging system and installation of bypass arrangement for bypassing the sewage flow, including, but not limited, to pumps, pipes, connections, couplings, electrical accessories, support traffic diversions arrangements etc. including desilting of manholes, disposal of debris as per the instructions of Engineer-in-Charge and keeping the manhole free from seepage and removal of bypass by de-plugging the mouth of pipe inside sewer manhole and removal of by pass system and making the sewer system operational including all labour, Machinery, material, taxes etc. as per the specifications and directions of the Engineer.For manholes of pipes upto 1200 mm dia

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