Improving the existing sewer system by enlarging the sewer line at Jothiammal nagar in depot-103, Area VIII

Amount

Cutting asphaltic concrete road surface - Non-bus route

Supplying,Delivery and Laying DWC pipes including earthwork excavation for trenches in hard stiff clay,blackcotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with initial lead of 10 m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, watering and ramming to consolidation, etc.,complete for the pipes of following diametres. (Timbering included for Depths 2.50m,3.0m)

At a depth of 2.0 m - 250 mm dia

At a depth of 2.5 m - 250 mm dia.

At a depth of 3.0 m - 250 mm dia.

At a depth of 3.0 m - 300 mm dia.

At a depth of 3.50 m - 300 mm dia.

At a depth of 4.0 m - 300 mm dia.

Hire charges for diesel pumpset for 7.5 HP for pumping sewage from one machine hole to other machine hole including fuel, operator and transportation charges

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 ecessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placin the barricading units as directed at the sites

End concrete using Cement concrete 1:3:6 using Crushed stone sand (Msand) and 40mm gauge hard broken stone jelly & SRC for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing, etc., complete

Providing form work for end concrete

Providing and fixing dummies for existing machine hole for upstream and downstream.

Providing anchoring for DWC pipe joints for additional protection by using 1:4:10 using Crushed stone sand (Msand) and 40mm gauge brick jelly for plain cementconcrete works including laying in layers of not more than 15cm thick including ramming curing, etc. complete

Providing bed for the DWC pipe by supplying and filling stone dust

Cement concrete 1:2:4 using Crushed stone sand (Msand) and 20mm gauge hard broken stone jelly for plain concrete works including laying ramming curing, etc., complete.

Towards charges for as built survey for every sewage and water pipeline and other assets must be done using DGPS RTK method by transfering the co-ordinate from the nearest static GCP of CMWSSB. Where there signal interuption for the RTK method, total station can be used. The co-ordinate from the static GCP shall be transfered to the total station by RTK method and the co-rdinate of the nearest static GCP can be caaputred by total station

Underground Asset carrying out RTK survey based on individual point

Construction of machine hole of precast circular RCC machine hole using sulphate resistant cement (upto 450mm dia)

1.50 m depth - 1.20 m dia

2.0 m depth - 1.20 m dia

2.50 m depth - 1.20 m dia

Cast insitu circular RCC machinehole using sulphate resistant cement by sinkingmethod/open excavation depending on site condition (From 3.00 m and above averagedepth range)

3.00 m depth - 1.20 mm dia

3.50m depth - 1.20 mm dia

4.00 m depth - 1.20 mm dia

Stock brick work with II class bricks in cement mortar 1:3 (Crushed stone sand (M-sand)) for 23 cm thick wall including curing etc. complete

Plastering with cement mortar 1:3 (Crushed stone sand (M-sand)) for 15mm thick including curing, etc., complete

Plastering with cement mortar 1:3 (Crushed stone sand (M-sand)) for 12mm thick including curing, etc., complete.

FIBER REINFORCED CONCRETE FRAME AND COVER AS PER TYPE, IS 12592, PART 1 & 2

60 cm (24") dia. heavy duty

45 cm (18") dia. heavy duty

Refilling with excavated earth

Disposal of surplus earth

Dismantling the existing machine hole door

Rectification of House service connection: Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete

110mm dia upto a depth of 1.0m

Rectification of HOUSE SERVICE CONNECTION water by replacing the 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 dia.

Sub Total (excluding GST)

SS FOUNDATION