CONSTRUCTION AND OPERATION AND MAINTENANCE FOR 5 YEARS OF UNDERGROUND SEWERAGE SYSTEM TO LEFT OUT AREAS IN TIRUVARUR MUNICIPALITY

Amount

A) CIVIL WORK Earthwork excavation for laying sewer pipes excluding refilling, disposal of surplus earth, shoring and strutting beyond 2m depth including all other incidental charges. etc. complete and as directed by the Engineer in charge. 1.00. Earth work excavation and depositing on bank with initial lead of 10m and initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stoney earth and earth mixed with small size of boulders as directed by Departmental engineer.

0 to 2m depth

Earthwork excavation and depositing on bank with initial lead of 10m and initial lift of 2m in Soft Disintegrated Rock, laterite, soft rock or kankar, not required blasting as directed by Departmental engineer.

2 to 3m depth

3 to 4m depth

4 to 5m depth

Shoring, and strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per IS 2314-1986 by driving on both sides of the trench from Ground Level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia. at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stacking it safely for other uses. It includes the cost of sheet piles and casurina poles including labour charges for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing Casurina poles, etc., complete and all other incidental charges for the depths (i) 0-3mts.,(ii) 0-4mts.,(iii) 0-5mts., (iv) 0-6mts.,(v) 0-7mts. and (vi) 0-8mts.

0 to 2.0m depth

Lowering of DWC / HDPE Pipes to proper grade and alignment, cutting the pipes true to axis to the required alignment and slope as indicated in drawing/design and hydraulically testing the pipe to the required pressure as directed by the departmental engineer including Labour charge etc,. complete as per specifications at different depths.200mm

Up to 2m

above 4m

Jointing DWC/HDPE Pipes and Specials by buttfusion welding/ electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (Part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Engineer in charge.

200mm dia

Charges for cutting open roads for laying Sewer lines as per the drawing and standard specification and directed by the Departmental Officers.

B.T.Road Cutting

C.C.Road Cutting

Refilling the trenches with excavated earth including watering and consolidation as directed by the Engineer in Charge and as per standard specification.

Disposal of surplus earth including loading & unloading, conveyance within a distance of 2 km and spreading at PS as directed by the Engineer in charge.

BEDDING Filling of Stone dust of approved quarry including cost materials and spreading of labours charges etc,complete.

Barricading the trenches for one side using casuarina poles 8 to 10 cm dia , white PVC tape 15 mm wide with red strips printed in two rows, 75 mm dia red reflectors in every 3 m length, providing two no. of danger lights for every 150m length, including the cost of all materials, charges for fixing of barricading and removal of barricading after testing and filling the trench and stacking the post for reuse etc complete as directed by the site Engineers.

Construction of machineholes of different depths as per type design/drawing along sewer lines and provided with tight fitting FRC machinehole frames and covers of 600 mm dia., of approved make and quality including supply and fixing of encapsulated PVC foot steps. The machinehole shall be of brick work (with approved chamber class II bricks of size 9" X 43/8" x 23/4" in CM 1:3 and plastered with CM 1:3, 20mm thick inside and 12mm thick outside as per type design with foundation concrete 250mm thick in CM 1:4:8 using 40mm HBG. Benching and channeling should be provided in the machinehole and suitable diameter pipes for House service connection (Not exceeding 6 Nos. for each machinehold) to be left in the machineholes as directed by the Engineer in- charge. The rate shall include earthwork, backfilling, and removal of surplus earth and depositing within 500m, de-watering wherever necessary, barricading, provision of danger lights etc., complete as per standard specification and directed by the Department Engineer. For construction of Sewer works SRC cement has to be

upto 1.5m deep below GL - Rectangular 0.75x1.20m inner size

1.5 to 2.0m below GL - Rectangular 0.9x1.2m inner size

2.0 to 2.5m below GL - Rectangular 0.9x1.20m inner size

2.5 to 3.0m below GL - Circular 1.50m dia inner size

3.0 to 3.5m below GL - Circular 1.50m dia inner size

3.5 to 4.0m below GL - Circular 1.50m dia inner size

Construction of machineholes of different depths (using Sulfate Resisting Cement) as per drawing or approved type precast RCC machinehole chamber along sewer lines and provided with tight fitting FRC machinehole frames and covers of 560 mm dia., of approved make and quality including supply and fixing of encapsulated PVC foot steps. The machinehole shall be of Reinforced cement concrete of Cum0 mix (by using sulphate resistant cement) using 10mm to 20mm ISS gauge HBBG metal from the approved quarry including mixing, laying, consolidating, curing cost and conveyance of all materials to site with inner smooth finishing, Benching and channeling should be provided in the machinehole and suitable diameter pipes for House service connection to be left in the machineholes as directed by the Engineer in-charge. The rate shall include earthwork, backfilling, and removal of surplus earth and depositing within 500m, de-watering wherever necessary, barricading, provision of danger lights etc,. Complete. For construction of Sewer works SRC cement has to be used

4m to 4.5m below GL - Circular 1.50m inner dia.

4.5m to 5m below GL - Circular 1.50m inner dia.

Construction of Drop machineholes as per the specification of machineholes including the additional Earthwork excavation up to 2.5 m depth - RCC Rectangular of size 0.9m x 1.20m (inner) above 2.5 m depth RCC Circular of diameter 1.5m (inner) Earth work excavation for foundation & depositing on bank with an initial lead of 10 m & lift of 2 m in hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small sized boulders and hard gravelly soil -SS20B up to 1.5m depth Soft disentegrated rock, laterite, soft rock, kankar not requiring blasting in SDR Soil .1.5 - 2m depth etc. complete, Medium rock, and Dense Medium Rock not requiring Blasting 2 - 3 m depth Hard rock by wedging, chiselling and trimming to proper shape where blasting is prohibited.above 3 m depth including all charges etc complete as per the standard specifications as directed by Corporation Engineer

0.6 - 1.0 m depth

1.00 - 1.50 m depth

1.50 - 2.00 m depth

2.00 - 2.50 m depth

2.50 - 3.00 m depth

3.00 - 3.50 m depth

Clearing shrub, jungle etc., complete

B) MATERIALS Supplying of following ID dia. Double Wall Corrugated High Density Poly Ethylene Pipes, SN 8 as per IS 16098 (Part 2):2013 / EN 13476, including cost of conveyance, stocking charges, etc., complete as per standard specifications.

200mm dia.

Schedule - 2 - House Service Connection Earth work excavation for foundation with initial lead of 10 m and initial lift of 2 m in a)Sand,silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil. SS20B b)Hard stiff clay, stiff black cotton,

Supplying & laying of SN8 110 mm dia UPVC pipes for Domestic, 160mm dia UPVC pipes for Non domestic including lowering in to trenches, laying to proper grade & alignment & jointing the pipes & specials with PVC couplers with cement paste both dry & wet c

Domestic Connections (110mm Dia)

Non-Domestic Connections (160mm Dia)

Endcap-110mm PVC

Endcap-160mm PVC

Fixing PVC Pipes in Inspection chamber etc. (Domestic)

Fixing PVC Pipes in Inspection chamber etc. (Non-Domestic)

Refilling the trenches with suitable excavated earth available in layers of 150 mm thick, watering, ramming & consolidation complete as directed by the Corporation Engineer for Domestic & Non-Domestic

Charges for cutting open roads for laying Sewer lines as per the drawing and standard specification and directed by the Departmental Officers for BT Road

Inspection Chambers Earth work excavation for foundation with initial lead of 10 m and initial lift of 2 m in hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stoney earth and earth mixed with small size of boulders including refilling the sides of foundation. P.C.C 1:5:10 (one SRC cement, five sand and ten coarse aggregate)using 40 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the Corporation Engineers. RCC (Cum0) Precast slab 0.45 m x 0.45m x 0.6 m, 0.6 m x 0.6m x 0.6m, thickness using 20mm thick hard broken stone jelly and river sand including the cost of reinforcement grills and fabrication charges, moulding, curing, finishing charges and fi

Domestic

Non Domestic

Supply and fixing of PVC. Nahini / Floor Trap with stainless Steel Gratings - 100 mm x 75 mm including all charges etc, complete as per standard specification.

Schedule-3, Lifting Station Earth work open well excavation complying with relevant clauses of T.N.D.S.S. Well sinking and with lead upto 10 metre in Hard stiff clay, stiff black coton soil, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders and hard gravely soil - First depth of 2 metre

First depth of 2 m

Earth work open well excavation, complying with relevant clauses of T.N.D.S.S. Well sinking and with lead up to 10 metres in soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting

Second depth of 2 m

P.C.C 1:4:8 (one cement, four sand and eight coarse aggregate) using Sulphate Resistant cement and 40 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the Engineer in charge.

below G.L 3.5m

Reinforced cement concrete Cum0 using 20mm size Hard Broken/Machine crushed Granite Stone Jelly for all RCC items of works excluding centering, shuttering and cost of reinforcement, including curing, fixing fan clamp and fixtures if necessary etc., complete complying with standard specification.

Above G.L

Below GL Upto 1.5 m

From 1.5 m to 4.5 m

Supplying, fabricating and placing in position of RTS CRS rods at all heights for reinforcement including the cost of steel and binding wire, labour charges etc., complete for all RCC works and as directed by Engineer in charge.

Supply and erection of steel centering, shuttering for soffits and sides including necessary supports and strutting for all RCC works using MS sheets of suitable size of BG 10 stiffened with MS angle of size 25 X 25 X 3mm for boarding laid over Silver Oak joists of size 10cm X 6.5cm spaced at 90cm c/c and supported by Casuarina Props 10cm - 13cm spaced at 75cm c/c etc., complete and as directed by Engineer in charge.(Retrieved Materials should be taken back by the contractor.)

Curved surface From 0 m to 3.3 m

From 3.3 m to 4.3 m

Applying two coats of cement paint of approved colour and quality over the outer exposed cement plastered wall surfaces including cleaning, preparing the surface area and including cost of all materials, labour charges, curing etc., complete and as directed by Engineer in charge.

Shoring & strutting the sides of trench when depth of excavation exceeds 2 m in loose soil including cost of materials and labour charges for installation & removal of Silver Oak planks of 40mm thick & country wood scantlings of 4m length etc complete & as directed by the Engineer-in-Charge.

Disposal of surplus earth including loading, conveyance within a distance of 5 km and spreading as directed by the Engineer in charge.

Supplying and fixing of encapsulated P.V.C. steps inside the well

Construction of Bellmouth Chambers of the following sizes is wall thickness of 200mm for receiving the flow from LS before discharging to machinehole with Reinforced cement concrete Cum0 using 20mm size Hard Broken/Machine crushed Granite Stone Jelly for all RCC items of works excluding centering, shuttering and cost of reinforcement, including curing, fixing fan clamp and fixtures if necessary etc., complete complying with standard specification.

Internal size : 0.75 x0.70x 0.6

Construction of Valve Chambers of following Sizes, Reinforced cement concrete Cum0 using 20mm size Hard Broken/Machine crushed Granite Stone Jelly for all RCC items of works excluding centering, shuttering and cost of reinforcement, including curing, fixing fan clamp and fixtures if necessary etc., complete complying with standard specification.

Construction of Valve chamber - 1.5 m x 1m x 0.9 m

100 mm dia CI - 1.0m d/f pipe

100 mm dia CI - 0.5m d/f pipe

100 mm dia CI d/f 90 deg bend

100 mm dia CI non-return valve

100 mm dia CI sluice valve

50 x 100 mm CI D/F taper

100 x 100 mm CI A/F tee

Schedule - 4 - Pumping Main Earth work excavation in all types of strata(other then loose soil) for laying the following sizes of pipes with the standard trench width as specified in the Technical specification. complete and as directed by Site Engineer.

150 CI Class LA pipe

Refilling the excavated earth after the pipes were laid jointed and tested etc. complete.

150 CI Class LA pipe

Lowering CI pipes and speCIls into the trench and laying to proper grade and alignment

150 CI Class LA pipe

Jointing with rubber gaskets and testing to the required pressure including the cost of conveyance of water for filling during testing but excluding the cost of rubber gaskets.

150 CI Class LA pipe

Charges for cutting open roads for laying Sewer lines as per the drawing and standard specification and directed by the Departmental Officers.

BT Road Cutting

CC Road Cutting

For 150 mm dia. Pumping main

For 150 mm dia. Pumping main

Material Supply and delivery of the following sizes of DI Sluice valve as per IS 14846/2000 PN 1.0 with ISI marking including necessary fittings etc,. Complete.

150 mm DI Sluice Valve in 150mm DI Main

Supply and delivery of the following sizes of CI Double Air valve as per IS 14845/2000 with ISI marking including necessary fittings etc,. Complete.

50 mm DI DAV in 150mm DI Main

Supply and delivery of CI Specials as per IS 1538/ 1993

Bend 150x90 Deg DI DSB

Supplying of following dia. CI Pipes for Class LA as per IS 1536/2001 including cost of conveyance, stocking charges, etc., complete as per standard specifications.

150 CI Class LA pipe

Thrust block as per type design - Providing and laying cement concrete 1:2:4 proportion with 20mm and down size metal of approved gradation hard broken granite, trap, basalt or with any other approved hard aggregate including cost and conveyance of all materials with all lead and lift including earth work excavation, PCC, cost of reinforcement and placing the same above or below ground level including reinforcement, plywood/ steel form work, machine mixing, laying, tamping, curing, etc., complete including smooth finishing the exposed faces with CM 1:4 proportion 12mm thick wherever necessary, etc., complete for Anchor Blocks or Thrust Blocks as per drawings including lead & lift etc., complete as per standard specifications and directed by the Engineer In-charge.

150x90 Deg DI DSB

Schedule-5, Road Restoration for Collection System plain cement conctere 1:4:8 (one cement four fine aggregate and eigth coarse aggregate ) using 40mm size HBG metel including cost and conveyence of all materials to site and including for the mixing , laying water carring with all leads of good water compacting and laboutr charges and all incidential charges such as water providing etc, complete as per standard specificationrs.

Cement Concrete 1:2:4 using 12 to 20mm gauge hard broken stone jelly for plain cement concrete work including laying compacting and curing ., etc ., complete

Schedule-6, Electromechanical Works Supply, delivery, erection, testing and commissioning of non-clog submersible sewage pumpset with following duty point, including required capacity 3 Ph, 415 V, AC, 50 Hz, Electrical Motor with suitable weather proof cable (Copper ) of total length of 35 m, control panel, Pedestal Coupling, guide wire / suitable guide pipe of length 10m, M.S.(GLVD) lifting chain of length 10m, necessary level controlling probes with sufficient length of armoured copper LTUG cable to connect the probe from the junction box to the control panel, fasteners including laying of pump cable under ground with suitable conduit and clamping on walls in trays and incidental civil works etc.complete.

208 lpm against a total head of 10 m (LS)

Supply, delivery, erection, testing and commissioning of following sizes of power shunt capacitor for power factor improvement, suitable to operate on 415V, 3Ph,50Hz A/C supply, on suitable angle iron frame-works (37.5 mm x 37.5 mm x 6.24mm ) at a height of 0.25m from the ground, including earthing and incidental civil works etc., complete.

Supplying and fixing of following capacity Triple Pole fuse carrier in MS Sheet steel encloure with provision for accommodating the TNEB meter including earthing etc., complete.

Supplying and fixing of following capacity Triple Pole SFU with fuses on suitable angle iron frame with earth connection only.

1.01.Capacity of M.V. Panel - 32 Amps (LS), 1.02.32 A FP Change over Switch 25 kA, 1.03.10 A TP MCCB 10 kA - 2 No.s for pumps, 1.04.10 A TP MCB 10 kA for Spare, 1.05.6A TP MCB 10kA - 2 No.s for Pump capacitor, 1.06.32 A TPN MCB 10kA (for LDB & Spare - 2No.s)

Supplying and laying following LTUG cables in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good as directed.

Supplying and laying of DO - 3 ½ core 25 sq.mm. for LS(Incomer)

Supplying and laying of DO - 4 core 4 sq.mm - Panel to Starter (PS)

Supplying and laying of DO - 4 core 4 sq.mm - Starter to Junction Box (PS)

Supplying and fixing of cable gland and termination with Aluminium cable lugs for following PVC UG cable and with earth connection

DO - 3 ½ core 25 sq.mm.

DO - 4 core 4 sq.mm

Supply delivery and fixing of out door weather proof junction box fabricated in MS sheet steel (12 SWG for front 14 SWG for other sides) near the suction well for terminating the Pump power cable and control cable on an angle iron frame at convenient height for working and above the local MFL with provision for terminal block & earthing as per IS including incidental civil works etc.,complete.

Up to 20 HP

Earthing as per ISI specifications with necessary masonary work.

Supply and connection of earthing conductor including two coats of approved painting and laying between earth pit and equipment.

25 x 6 mm GI Flat

Schedule-7, Trenchless Technology Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), depth upto 5m in all soil strata including shoring and strutting using 6mm tk MS Plate of size 3.50m x 3.50m usable for 10 operations and providing 16mm thickness MS plate of size 3.00m x 3.50m with 100mm x100mm x 12mm angles of 4m length for holding the MS plates for Thrust arrangements to receive the impacts during pushing operation of encasing pipe. Lowering the following size of MS encasing pipe by using Contractor’s crane and machineries and jointing MS pipes by welding, across the National Highways/State Highways/ Railways/Canal crossing etc and driving the horizontal bore by pushing / jacking method (trenchless technology method) using contractor’s machineries such as cranes, jacks, jacking materials, generator, welding machineries compressor, jack hammer and other equipments etc. without interfering and causing any hindrance to the movement of traffic or any other vehicles, without any disturbances to the railway/road/canal formation etc. including bailing / pumping of water where ever necessary without affecting any installation like water supply pipeline/telephone cable, electric cables etc. passing nearby area and scooping the earth inside the pipes and pit and depositing the surplus earth in a convenient place and leveling the site after completion of entire work as directed by CMWSSB Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of om to 2m excluding the cost of MS pipes.

300mm dia pumping main CI Pipe railway crossing, 273mm dia MS encasing pipe for various thickness

Cost of Encasement Pipes of 273mm dia MS Pipe with 5mm thick

General Items – Environmental, Social, Health and Safety (ESHS) Cost Schedule Resources allocated to ESHS management

Drafting and updating the ESHS documentation, reporting, inspections

Implementation of the Health and Safety Plan: Meetings, health care center, medical check‑ups, emergencies and evacuations, safety protective equipment, hygiene

Accommodation, drinking water, meals and transportation of staff

Training and local recruitment management costs

Protection of adjacent areas, biodiversity, prevention of erosion and wastewater management

Traffic, noise and atmospheric emissions management, land take

Waste and hazardous products management

Vegetation clearing and site rehabilitation

Operation and Maintenance for 30 km of sewerage network and 1 Lifting station Operation and Maintenance Price for Operation and Maintenance of Sewage Collection system including Machine holes, Sewer line, Pumping Stations, Lifting stations, Pumping Mains & all allied appurtenances, All electro mechnical items, spares, consumables, Manpower, repair & Maintenance including preventive maintenace, routine maintenance, cost of operating jetting cum suction machine including silt suction machine including silt disposal and any other cost with in the Project Area

For First Year

For Second Year

For Third Year

For Fourth Year

For Fifth Year