Chennai Metropolitan Water Supply And Sewerage Board Tender

200mm dia (night work)

200mm dia (night work)

Supplying, Conveying and fixing specials like “C.I.Tee” Branches, Bends and tapers including earthwork excavation as per schedule No.1.1. at any depth

200mm dia CI 90 deg D/S bend

200mm dia CI 45 deg D/S bend

Supplying, delivery, conveying and fixing the CI sluice valves as per IS 14846/2000 PN 1 with ISI marking, loading,unloading, Transportation charges and stacking etc complete as per specifications.

200mm dia Sluice valve

Supply, delivery, conveying and fixing following cast iron specials as mentioned below conforming to IS: 1538:1993 including loading, unloading and stacking at the site etc as directed by the engineer at site, and including earthwork excavation, refilling with excavated soil, watering and ramming to consolidation and disposal of surplus earth etc complete.

CI Specials for 200mm Sluice Valve

200mm F/Spi Tail piece

200mm F/Soc Tail piece

CI Collars

200mm

Specials near Suction Well

200mm F/Spi Tail piece

200mm D/F 90deg bend

200mm D/Fpipe 1m length

200mm CI bell mouth

Making rubber joints including using Tyton Rubber gaskets as jointing material for CI specials.

200mm

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to with IS638(1979) and M.S. bolts and nuts of IS 1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete.

200mm

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the DI pumping main including the cost of shuttering, compaction, curing etc. complete.

200mm dia CI 90 deg D/S bend

200mm dia CI 45 deg D/S bend

Construction of chamber for 100mm to 250mm dia. sluice valve including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.35 x 1.2 x 1.55 m

Cutting CI pipes 200 mm dia

Testing of M.S./C.I./P.V.C./D.I pipes with hydraulic testing equipment by filling with water(including cost of water @ Rs.73/KL) and testing to recommended pressure in convenient stetches and attending the bursts if any occured during the test, excluding the cost of pipes, including other incidental and operational charges, etc., complete for the following diametres of pipes.

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.

Hire charges for diesel pumpset for 5 HP with fuel and crew charges including transportation

Shifting of House Sewer Service Connection

Supply and Laying P.V.C. straight pipes and specials including carting, jointing, excavation and refilling as per schedule 1.1. complete. (110mm 6Ksc pipe)

Shifting of House Water Service Connection

Supplying and laying of MDPE (PE80) Blue pipe (IS:4427) with necessary specials including earth work excavation laying jointing testing, refilling the trenches and disposal of surplus earth etc.complete( 20 mm O.D)

Submersible pumpset and other allied works

Interconnetion work

Where the Site has already been surveyed and maps available in UTM Zone44 coordinate system with TBM available on ground or coordinates of other assets available on Ground.

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 (Sol 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). The final base map with assets and utilities shall be fumished in (shp) format.

The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing. CMWSSB) shall be converted into proper geo database (FGDB/PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print a) For the Underground/Surface Assets along the roads for the distance ranging from:

2km

Sub Total

GST @ 18%