Chennai Metropolitan Water Supply And Sewerage Board Tender

Supply, conveying and fixing CI specials like Tee, Bends and Tapers as per IS 1538 including earthwork excavation, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc. at any depth.

200mm dia CI 90 Bend D/S

200mm dia MJ Collar

200mm dia SV with tail piece

Labour charges for cutting CI pipe 200mm dia

Labour charges for making rubber joints for pipe

Testing MS/CI/PVC/DI pipes with hydraulic testing equipments by filliong with water and testing to recommended pressure

Construction of chamber for 100mm to 250mm dia SV including providing and fixing FRC cover and frame of size 60x60cm for size 1.35x1.20x1.55mtr

Hiring 5HP Diesel engine pumpset for dewatering the subsoil water entered into the trench fior laying 200mm dia CI pipe

CC 1:3:6 using 12 to 20mm Bg jelly for making smooth surface to the road users

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding,fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within permissible limits (SoI Standards) while transferring the levels from the existing Static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base. As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N).sets along the roads for the distance ranging from:

2km

Sub Total

GST @ 18%