Improvement of water supply distribution system in Tiruvarur Municipality.

Amount

Drilling of borewells any where in Tamilnadu including transportation from one place to another within the above Districts in alluvial soil or sedimentary strata of clay and sand stone, shale, pebbles boulders etc. By first taking a pilot bore of 140mm / 150mm dia and then enlarging to required dia by direct or reverse rotary mud, circulation method, using Rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site. Site will be shown by the TWAD Board officers including construction of mud pit.

Drilling of 140/150 mm pilot bore. upto 60 m.. Depth ending below Ground level.

Reaming from 140 /150 mm dia pilot bore to 300mm dia bore as directed by the TWAD Bd. Officers.

upto 60 m.. Depth ending below Ground level.

Labour charges for inserting PVC casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC couplers with cement paste etc. complete. Supply and packing the annular space with pebbles of size and quality as approved by the Executive Engineers TWAD Board.

200 mm dia casing pipes assembly.

Charges for developing the bore wells with Air compressor of 600 CFM capacity (minimum 8 hours) including transportation labour and fuel charges for compressor as directed by TWAD Board officers and conducting yield test by "V'' Notch method.

Supply and Delivery of unplasticised for plain PVC Casing pipes for the following dia in 3m length with screwed and Socket ends and centering guides for every 15m length of pipes as per IS 12818/1992 and as amended from time to time to suit deep borewells upto 80 m to 250m depth (CM) for delivery at site within ISI marking including loading unloading, freight, transit insurance and inclusive of all taxes etc complete. CM 200mm PVC plain casing pipes.

Supply and Delivery and fixing of CM 200 mm PVC end plug suitable for the above pipes with ISI marking inclusive of all taxes etc complete.

Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continuos rated two pole suitable wet type vertical squirrel cage induction motor asper IS 9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/-10%, 50HZ +/- 5 %

600 lpm x 75m Submersible pump

Labour charges for the erection of submersible pumpset in borewell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

Above 5.00HP to 10.00 HP

For 15HP Pumpset

Supply and devlivery of 3 core 4.0 sq.mm copper flat type cable as per IS. 694/1990

Bore cap using M.S. Flat of size 1 cm x 3 mm and M.S. sheet on top with bolting arrangements for securing the cap in position for 8" Casing Pipes

Supply and delivery of Vertical water / oil lubricated statically, dynamically, hydraulically balanced turbine pump capable of discharging the following duty condition as given below due to all causes with surface discharge head confirming to IS 1710 and as amended as on date with accessories as per IS 5120/1977 ( Reaffirmed 2011 ) and as amended thereafter to suit the site condition. The speed, No. of stages, sizes of column pipes and line shaft indicated is based on site condition prevailing during investigation. The pump should be supplied with non reversible ratchet pin housing safety clutch, suction strainer etc. The Pump Bowl assembly shall be with bronze impeller running at 1450 RPM. The pump includes suitable head shaft, suitable 1.5 metre long SS line shaft required Nos. to suit the well depth, Rubber line shaft bearing of required Nos., C.I Bearing retainer of required Nos., 100 litre HDPE Pre- lubricating tank with 20mm PVC Rigid pipe connection along with GM gate valves, Suitable ERW column pipe of each 1.5m long of required Nos. to suit the well depth, Suction bell mouth of suitable size, M.S. clamps suitable for column pipe/line shaft -2 set and Spanner - 1 set etc complete

5000 lpm x 38m turbine pump

Supply and delivery of AC three Phase 4 pole Horizontal squirrel cage Induction motor confiriming to IS 325/1996 and as amended thereafter with Class F insulation to suit the speed of pump and suitable for operation with continous S1 rated, 415 V +/- 10 %, 50 HZ +/- 5% supply , TEFC (upto 20 HP), SPDP (above 20 HP). The motor offered should be of energy efficient motors.

40 HP MOTOR

Boxtype Twin Fluorescent Fitting with copper choke and condensor (HPF) complete with ISI mark 4 ft. 40W box with Ballast

Boxtype Twin Fluorescent Fitting with copper choke and condensor complete with ISI mark 4 ft. 40W Bulk head fittings - 2 Nos

Supply and Fixing of 16 / 32 Amps TPN switch for Controlling Power supply to panel board with I.S.I.Mark.

Supply and fixng of TNEB meter board suitable for 3 phase 100A service connection made up of suitable angle iron frame work of size 2 feet x 1-1/2 feet using angle iron of size 1-1/2" x 1-1/2" x 1/4" rigidly fixed on wall covered with hylem sheet of size 2 feet x 1-1/2 feet of 12mm thickness with necessary bolts and nuts supports and supply and fixing of 3 Nos. 100A fuse units (500V), 1 No. eutral link, copper earth flat of size 1" x 1/4" with inter connection of EB meter to fuse units by 16 Sq.mm PVC insulated copper wire with earth connection complete

Supply and run of 4 x 6 sq.mm. (84 / 0.3) PVC insulated SC unsheathed copper conductor of 1100V on 7 / 20 GI bearer wire for service connection mains

Earthwork - excavating and depositing on bank with an initial lead of 10 m including bailing out water with lifts indicated below including guarding and lighting in trenches for laying of pipes in Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil (Ordinary soil) etc SS20 B. all complete as per standard specifications and as directed by the Departmental Engineer.

110 mm dia HDPE

125 mm dia HDPE

160 mm dia HDPE

200 mm dia HDPE

250 mm dia HDPE

315 mm dia HDPE

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering, ,and baling out water and cleaning and levelling the site etc.,complete 10 m3

Supply and Delivery of CI D/F Gate Valves (soft seated) resilient seated soft sealing gate valves (sluice valves) with body bonnet of ductile cast iron of grade GGG 40 or equivalent grade, wedge fully rubber lined with EPDM, replaceable spindle nut, without gland packing and with 3 O-Ring protection on the shaft and seals of NBR and the valves should be of vaccum tight and 100% leak proof with face to face dimentions as EPR BS 5163-89/ ISI 14846-2000/ DIN 3202 F 4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight thro’ body passage. All lthe valves are to be compatible for burried application with pressure rating PN 1.0

100 mm dia sluice valve

150 mm dia sluice valve

200 mm dia sluice valve

250 mm dia sluice valve

300 mm dia sluice valve

80mm dia scour valve

150mm dia scour valve

Manufacture, Supply and Delivery of Tamper proof DI single chamber air release valves with pressure range from PN 1.0 to 2.5 with body and cover made of Ductile Iron of Grade GGG 40 or equivalent grade conforming to IS 1865 with Food Grade Epoxy Powder coating(EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu.

50 mm dia DI(Air Valve)

80 mm dia DI(Air Valve)

Lowering PVC rigid/ HDPE pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.

110 mm dia HDPE

125 mm dia HDPE

160 mm dia HDPE

200 mm dia HDPE

250 mm dia HDPE

300 mm dia HDPE

300 mm dia HDPE

Jointing the HDPE pipes and specials with butt fusion including cost of jointing materials and testing to the required pressure with water etc., complete as per standard specifications and as directed by the Departmental Engineer.

110 mm dia HDPE

125 mm dia HDPE

160 mm dia HDPE

200 mm dia HDPE

250 mm dia HDPE

300 mm dia HDPE

Lowering the following DI K7 pipes and specials into trench and laying to proper grade and alignment complete as per standard specifications and as directed by the Departmental Engineer.

350mm dia DI

Jointing the DI S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants, cost of jointing materials and testing to the required pressure with water etc., complete as per standard specifications and as directed by the Departmental Engineer.

350 mm dia DI

Air Valve Chamber Size (1.20X0.75)

Air Valve Chamber Size (1.50X1.05)

Air Valve Chamber Size (1.20X0.75)

Air Valve Chamber Size (1.50X1.05)

Labour for cutting CC roads and BT for laying the following pipes and specials etc., complete as per standard specifications and as directed by the Departmental Engineer.

CC Road

BT Road

Disposal of surplus earth including loading & unloading, conveyance within a distance of 5 Km and spreading as directed by the Departmental Engineer.

Barricading work for laying the pipe line with casurina posts at 1.52 m c/c (8-10 cm dia and 1.52 m height) verticals and tied with coir rope including watching during night fixing danger flags, danger lights/reflectors and painting in different colours as directed by the engineers

Heavy Traffic

Less Traffic

SI NO12.14.6 DI Pressure Reducing and Flow Limit Control Valve (PN10/16) with the function to reduce higher upstream pressure into a preset lower downstream pressure and to not allow flow rate in the line to exceed beyond the defined set point. The flow orifice diameter is designed based on the set point as per the design requirement. The set point can be changed to a maximum of +10%. “Manufacture supply and delivery of DI D/F Diaphragm type own medium controlled Pressure Reducing and flow limit control valve with cast body of ductile iron grade GGG-40 or equivalent grade or as per IS 3896-Part-2-1985 customized control cylinder for linear control behaviour or equivalent, performed diaphragm and pull out safe profile sealing ring of EPDM, threaded inserts (CORFIX - to prevent the coating from coming off in the connections area as well as corrosion and incrustations in the control circuit) or equivalent. 2 pressure gauges for operator-friendly control to determine the actual inlet and outlet pressure connected directly to the valve. Flange connection dimensions according to EN 1092, Part 2/ ISO 7005[DIN]/ IS 1538, all parts (Epoxy coating, and diaphragm) in contact with medium are as per KTW and DVGW certified (harmless)/WRAS & NSF approved. The EPDM rubber & Epoxy coating (EP-P) should be approved by W270.(EP-P)/ WRAS & NSF.” Pilot valve system having Stainless Steel / Brass fittings with spring of stainless steel 304 as per standard parts according to DIN EN 12 266-1 and Stainless steel 316 orifice plate shall be as per the set point of flow rate, all the external control tubing of SS 304 / Copper/ reinforced plastic rated PN16, Tightness to DIN EN 12 266-1, leakage rate A (or) equivalent and the needle valve/ speed control device should be provided to vary opening speed of the main diaphragm with self- cleaning filter to avoid possibility of dirt build up inside the control tubing.

150mm ( Flow cum pressure control valves at inlet of OHT)

200mm ( Flow cum pressure control valves at inlet of OHT)

300mm( Flow cum pressure control valves at inlet of OHT)

100 mm (Flow cum pressure control valves at outlets of IFW/sump/ELSR)

150 mm (Flow cum pressure control valves at outlets of IFW/sump/ELSR)

200 mm(Flow cum pressure control valves at outlets of IFW/sump/ELSR)

250 mm(Flow cum pressure control valves at outlets of IFW/sump/ELSR)

300 mm(Flow cum pressure control valves at outlets of IFW/sump/ELSR)

350 mm(Flow cum pressure control valves at outlets of IFW/sump/ELSR)

SI NO12.14.6 DI Pressure Reducing and Flow Limit Control Valve (PN10/16) with the function to reduce higher upstream pressure into a preset lower downstream pressure and to not allow flow rate in the line to exceed beyond the defined set point. The flow orifice diameter is designed based on the set point as per the design requirement. The set point can be changed to a maximum of +10%. “Manufacture supply and delivery of DI D/F Diaphragm type own medium controlled Pressure Reducing and flow limit control valve with cast body of ductile iron grade GGG-40 or equivalent grade or as per IS 3896-Part-2-1985 customized control cylinder for linear control behaviour or equivalent, performed diaphragm and pull out safe profile sealing ring of EPDM, threaded inserts (CORFIX - to prevent the coating from coming off in the connections area as well as corrosion and incrustations in the control circuit) or equivalent. 2 pressure gauges for operator-friendly control to determine the actual inlet and outlet pressure connected directly to the valve. Flange connection dimensions according to EN 1092, Part 2/ ISO 7005[DIN]/ IS 1538, all parts (Epoxy coating, and diaphragm) in contact with medium are as per KTW and DVGW certified (harmless)/WRAS & NSF approved. The EPDM rubber & Epoxy coating (EP-P) should be approved by W270.(EP-P)/ WRAS & NSF.” Pilot valve system having Stainless Steel / Brass fittings with spring of stainless steel 304 as per standard parts according to DIN EN 12 266-1 and Stainless steel 316 orifice plate shall be as per the set point of flow rate, all the external control tubing of SS 304 / Copper/ reinforced plastic rated PN16, Tightness to DIN EN 12 266-1, leakage rate A (or) equivalent and the needle valve/ speed control device should be provided to vary opening speed of the main diaphragm with self- cleaning filter to avoid possibility of dirt build up inside the control tubing.

150mm sluice valve

200mm sluice valve

250mm sluice valve

300mm sluice valve

350mm sluice valve

Supply, delivery to site, fixing & Commisioning of CI sluice valve to pressure rating PN1.6 with ISI mark, for isolation confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes. for DMA

150mm sluice valve

200mm sluice valve

250mm sluice valve

300mm sluice valve

350mm sluice valve

350mm sluice valve

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished. & For DMA

300mm dia scour valve

150mm dia

200mm dia

250 mm dia

350 mm dia

LAYING OF PIPES ACROSS STATE HIGHWAYS ROAD BY TRENCHLESS TECHNOLOGY -Crossing of OF 100MM DIA DI PIPE (Drawing No: TVR-WS-P-RC-01)

Supply and Delivery of MS pipes of preferred dimensions ranging from 168.30mm OD to 2540mm OD having 2.6mm to 25mm thickness as per Table- 5 of IS 3589/2001 fabricated with Fe410 grade steel conforming to IS 3589:2001 and other allied codes. Pipes shall be externally coated with plant applied CM 1:3, minimum 20mm thick including reinforcement as per clause A-9 of Annex-A of IS 3589:2001. 168.3x2.6 mm diameter.

Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), upto 5m depth in all soil including shoring and strutting using 6mm tk MS Plate of size 3.50m x 3.50m usable for 20 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 TWAD Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of om to 5m excluding the cost of MS pipes.

For 200mm dia MS encasing pipe for various thickness

LAYING OF PIPES ACROSS NATIONAL HIGHWAY ROAD BY TRENCHLESS TECHNOLOGY -Crossing OF 250MM DIA DI PIPE

Supply and Delivery of MS pipes of preferred dimensions ranging from 168.30mm OD to 2540mm OD having 2.6mm to 25mm thickness as per Table- 5 of IS 3589/2001 fabricated with Fe410 grade steel conforming to IS 3589:2001 and other allied codes. Pipes shall be externally coated with plant applied CM 1:3, minimum 20mm thick including reinforcement as per clause A-9 of Annex-A of IS 3589:2001. 273x3.6 mm diameter.

Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), depth upto 5m in all soil including shoring andstrutting using 6mm tk MS Plate of size 3.50m x 3.50m usable for 15 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 325 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 TWAD Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of om to 5m excluding the cost of MS pipes.

LAYING OF PIPES ACROSS NATIONAL / STATE HIGHWAYS/ RAILWAY CROSSING BY TRENCHLESS TECHNOLOGY - Pipeline Crossing for 150mm dia ((Drawing No: TVR-WS-P-CD-01 & )

Supply and Delivery of MS pipes of preferred dimensions ranging from 168.30mm OD to 2540mm OD having 2.6mm to 25mm thickness as per Table- 5 of IS 3589/2001 fabricated with Fe410 grade steel conforming to IS 3589:2001 and other allied codes. Pipes shall be externally coated with plant applied CM 1:3, minimum 20mm thick including reinforcement as per clause A-9 of Annex-A of IS 3589:2001. 168.3x2.6 mm diameter.

Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), upto 5m depth in all soil including shoring and strutting using 6mm tk MS Plate of size 3.50m x 3.50m usable for 20 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 TWAD Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of om to 5m excluding the cost of MS pipes.

For 300mm dia MS encasing pipe for various thickness

LAYING OF PIPES ACROSS NATIONAL / STATE HIGHWAYS/ RAILWAY CROSSING BY TRENCHLESS TECHNOLOGY - Pipeline Crossing for 200mm dia (Drawing No: TVR-WS-P-CD-01 )

Supply and Delivery of MS pipes of preferred dimensions ranging from 168.30mm OD to 2540mm OD having 2.6mm to 25mm thickness as per Table- 5 of IS 3589/2001 fabricated with Fe410 grade steel conforming to IS 3589:2001 and other allied codes. Pipes shall be externally coated with plant applied CM 1:3, minimum 20mm thick including reinforcement as per clause A-9 of Annex-A of IS 3589:2001. 219.1x2.6 mm diameter.

Laying of 400 mm MS enasing pipe 10mm thick by pushing/ jacking method below the rally track at the depth of 2 to 4 m from the ground level under traffic codnition in all types of soil by using contractors cutting edge as required, crane, jacks and jacking equipments, generator , compresor, Jack hammer welding machine and other tools and equipments required for pushing the pipe by using the skilled labour duly lowering the pipe to the drive pit and welding the joints, Rate exclude the cost of MS pipe and the rate includes the cost of drive pit, thrust pipes bed/ wall and receiving pit etc. including bailing/pumping of water whereever necessary without affecting any installation like water supply pipeline/telephone cable,electric cable etc passing nearby and scooping the earth inside the pipes and pit and depositing the surplus earth in a convenient place and levelling the site after completion of work as directed by TWAD Board Engineers -30m

Earthwork - excavating and depositing on bank with an initial lead of 10 m including bailing out water with lifts indicated below including guarding and lighting in trenches for laying of pipes in Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil (Ordinary soil) etc SS20 B. all complete as per standard specifications and as directed by the Departmental Engineer.

Bedding the trenches with sand of 300mm thick , including watering and consolidation conforming to the relavent specfication for pipe laying work etc. complete as per standard specification and as directed by Departmental engineer.

Supplying and delivery the following sizes of DI pipes of class K9 conforming to IS: 8329 / 2000, as specified in Technical specifications in standard lengths including labour charges for loading, unloading and stacking at site etc. complete as per standard specifications and as directed by the Departmental Engineer.

Supply and delivery of DI D/F specials of conforming to IS 9523 / 2000 specifications at site of work including all taxes, duties, loading, transportation, unloading, insurance etc., complete and as directed by Engineer incharge. 300mm dia bend - 11.25 / 22.5 / 45 / 90

Supply and Delivery of DI D/F Gate Valves (soft seated) resilient seated soft sealing gate valves (sluice valves) with body bonnet of ductile cast iron of grade GGG 40 or equivalent grade, wedge fully rubber lined with EPDM, replaceable spindle nut, without gland packing and with 3 O-Ring protection on the shaft and seals of NBR and the valves should be of vaccum tight and 100% leak proof with face to face dimentions as EPR BS 5163-89/ ISI 14846-2000/ DIN 3202 F 4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight thro’ body passage. All lthe valves are to be compatible for burried application with pressure rating PN 10/16

300 mm dia DI (Sluice Valve)

Pumping Main

Replacement of Pumping Main

Manufacture, Supply and Delivery of Tamper proof DI single chamber air release valves with pressure range from PN 1.0 to 2.5 with body and cover made of Ductile Iron of Grade GGG 40 or equivalent grade conforming to IS 1865 with Food Grade Epoxy Powder coating(EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu.

80 mm dia

Lowering the following DI K9 pipes and specials into trench and laying to proper grade and alignment complete as per standard specifications and as directed by the Departmental Engineer.

300 mm dia DI

Jointing the DI S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants, cost of jointing materials and testing to the required pressure with water etc., complete as per standard specifications and as directed by the Departmental Engineer.

300 mm dia DI

Sluice Valve Chamber -1.5 x 1.05

Air Valve Chamber -1.5 x 1.05

Labour for cutting CC roads and BT for laying the following pipes and specials etc., complete as per standard specifications and as directed by the Departmental Engineer.

Disposal of surplus earth including loading & unloading, conveyance within a distance of 2 Km and spreading as directed by the Departmental Engineer.

Barricading work for laying the pipe line with casurina posts at 1.52 m c/c (8-10 cm dia and 1.52 m height) verticals and tied with coir rope including watching during night fixing danger flags, danger lights/ reflectors and painting in different colours as directed by the Engineer

Earthwork - excavating and depositing on bank with an initial lead of 10 m including bailing out water with lifts indicated below including guarding and lighting in trenches for laying of pipes in Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil (Ordinary soil) etc SS20 B. all complete as per standard specifications and as directed by the Departmental Engineer.

150 mm dia DI

200 mm dia DI

300 mm dia DI

350 mm dia DI

Bedding the trenches with sand of 300mm thick , including watering and consolidation conforming to the relavent specfication for pipe laying work etc. complete as per standard specification and as directed by Departmental engineer.

Supplying and delivery the following sizes of DI pipes of class K9 conforming to IS: 8329 / 2000, as specified in Technical specifications in standard lengths including labour charges for loading, unloading and stacking at site etc. complete as per standard specifications and as directed by the Departmental Engineer.

150 mm dia DI

200 mm dia DI

300 mm dia DI

350 mm dia DI

Supply and delivery of DI D/F specials of conforming to IS 9523 / 2000 specifications at site of work including all taxes, duties, loading, transportation, unloading, insurance etc., complete and as directed by Engineer incharge.

350 x 300 REDUCERS

300 x 150 REDUCERS

300 x 200 REDUCERS

150mm dia11.25 Bends

350mm dia 11.25 Bends

150mm dia 22.5 BEND

300mm dia 22.5 BEND

200mm dia

350mm dia

150mm dia 90 BEND

200mm dia 90 BEND

300mm dia 90 BEND

350mm dia 90 BEND

Supply and Delivery of DI D/F Gate Valves (soft seated) resilient seated soft sealing gate valves (sluice valves) with body bonnet of ductile cast iron of grade GGG 40 or equivalent grade, wedge fully rubber lined with EPDM, replaceable spindle nut, without gland packing and with 3 O-Ring protection on the shaft and seals of NBR and the valves should be of vaccum tight and 100% leak proof with face to face dimentions as EPR BS 5163-89/ ISI 14846-2000/ DIN 3202 F 4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight thro’ body passage. All lthe valves are to be compatible for burried application with pressure rating PN 10/16

300 mm dia DI Sluice / Scour Valve

250 mm dia DI Sluice / Scour Valve

200 mm dia DI Sluice / Scour Valve

150 mm dia DI Sluice / Scour Valve

100 mm dia DI Sluice / Scour Valve

Manufacture, Supply and Delivery of Tamper proof DI single chamber air release valves with pressure range from PN 1.0 to 2.5 with body and cover made of Ductile Iron of Grade GGG 40 or equivalent grade conforming to IS 1865 with Food Grade Epoxy Powder coating(EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu.

80 mm dia

50 mm dia

Lowering the following DI K9 pipes and specials into trench and laying to proper grade and alignment complete as per standard specifications and as directed by the Departmental Engineer.

150 mm dia DI

200 mm dia DI

300 mm dia DI

350 mm dia DI

Jointing the DI S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants, cost of jointing materials and testing to the required pressure with water etc., complete as per standard specifications and as directed by the Departmental Engineer.

150 mm dia DI

200 mm dia DI

300 mm dia DI

350 mm dia DI

Sluice / ScourValve Chamber 150mm dia -1.5 x 1.05

Scour Valve Chamber 100mm dia - 1.2 x 0.75

Air Valve Chamber 50mm dia -(1.2 x 0.75)

150 mm dia DI

200 mm dia DI

300 mm dia DI

350 mm dia DI

Disposal of surplus earth including loading & unloading, conveyance within a distance of 2 Km and spreading as directed by the Departmental Engineer.

Barricading work for laying the pipe line with casurina posts at 1.52 m c/c (8-10 cm dia and 1.52 m height) verticals and tied with coir rope including watching during night fixing danger flags, danger lights/ reflectors and painting in different colours as directed by the Engineer

Earth work excavation and depositing on bank with an initial lead of 10m and initial lift of 2m for foundation including shoring, strutting wherever necessary including hand bailing out water and all other incidental charges. etc. complete as directed by TWAD Board Officers as detailed below. Hard stiff clay,stiff black cotton soil, hard red earth, shales, murams, gravel, stoney earth, and earth mixed with 50% fair size boulders and hard gravelly soil -SS20B

First Depth of 2m

Seond Depth of 1m

Third Depth of 1m

Supply and filling the foundatiion and basement with clear river sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by TWAD Board Officers.

Plain cement concrete with P.C.C 1:4:8 (one cement, four sand and eigth course aggregate) using 40 mm H.B.G stone for levelling course including cost of mixing cement, placing, ramming and curing etc., complete as directed by the TWAD Board Officers.

R.C.C 1:1.5:3 (one cement, one and half sand and three course aggregate) using 20 mm size H.B.G stone (machine crushed) including mixing concrete using machanical mixer machine, and vibrating with machanical vibrator, but excluding cost of steel reinforcement, fabrication and placing the grills in postion and the cost of centering and strutting but including curing, finishing etc., complete as directed by the TWAD Board Officers.

Below GL

Above GL (0 - 4.5m Height)

Supplying, fabricating and placing in position of RTS 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 TWAD Board Officers.

Centering for sides and soffits of R.C.C slab for plane surface / curved surface including strutting upto required height using MS sheets of size 90cmx60cm and BG 10 gauge, stiffend with welded MS angle of size 25mmx25mmx3mm laid over silver oak (country wood) joists of size 10cmx6.5cm (space at about 90cm c/c) and supported by casurina props of 10cm to 13cm dia spaced at 75cm c/c complying with standard specification etc., complete as directed by the TWAD Board Officers. for the following items

Below GL 0 TO 3.3 Curved

Above GL 0 to 3.3m Plane

Above GL 0 to 3.3m Curved

Above GL 3.30 to 4.30 mCurved

Manufacture, Supply of Structural steel / I - Sections including cost and conveyance to site and labour charges including cutting, bending, binding, fabrication of Plate Girder beams to support Pumps & Motors, Gantry Girder Beams

Refilling the outside of the sump with excavated earth(other then sand) complying with standard specification for filling the foundation including watering consolidation etc., complete as directed by the TWAD Board Officers.

Supplying and erecting pull and push type rolling shutter with ISI make of approved size and section using 18 GI sheet. The shutter shall be painted with one coat of red oxide primer and the rate is inclusive of hood covers, transportation charges etc.,

Earth work excavation and depositing on bank with an initial lead of 10m and initial lift of 2m for foundation including shoring, strutting wherever necessary including hand bailing out water and all other incidental charges. etc. complete as directed by TWAD Board Officers as detailed below. in Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth (SS20B) Footing

Footing

Supply and filling the foundatiion and basement with clear river sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by TWAD Board Officers.

Plain cement concrete with P.C.C 1:4:8 (one cement, four sand and eigth course aggregate) using 40 mm H.B.G stone for levelling course including cost of mixing cement, placing, ramming and curing etc., complete as directed by the TWAD Board Officers.

R.C.C 1:1.5:3 (one cement, one and half sand and three course aggregate) using 20 mm size H.B.G stone (machine crushed) including mixing concrete using machanical mixer machine, and vibrating with machanical vibrator, but excluding cost of steel reinforcement, fabrication and placing the grills in postion and the cost of centering and strutting but including curing, finishing etc., complete as directed by the TWAD Board Officers.

6.00LL OHT (Upto 1.5m) Below GL

6.00LL OHT (From 1.5m depth to 4.5m depth) Below GL

Above GL (0-4.5m Height)

Above GL (4.5 - 7.32m Height)

Above GL (7.32 - 10.98m Height)

Above GL (10.98 - 14.64m Height)

Above GL (14.64 - 18.30m Height)

Above GL (18.30 - 21.96m Height)

Supplying, fabricating and placing in position of RTS 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 TWAD Board Officers.

Providing Fusion Bonded Epoxy coating not less than 175microns thickness and upto 300 microns to reinforcement of all diameters as per IS 13620/1993 including testing of coating at plant.The cost is inclusive of cost on account of careful handling, PVC coated binding wires, touchup material supplied by coating agency, repair work, loading, unloading and strengthening of bent rods etc., complete as per pecification and as directed by the Engineer in charge.

Centering for sides and soffits of R.C.C slab for plane surface / curved surface including strutting upto required height using MS sheets of size 90cmx60cm and BG 10 gauge, stiffend with welded MS angle of size 25mmx25mmx3mm laid over silver oak (country wood) joists of size 10cmx6.5cm (space at about 90cm c/c) and supported by casurina props of 10cm to 13cm dia spaced at 75cm c/c complying with standard specification etc., complete as directed by the TWAD Board Officers. for the following items

Plane 0 - 3.3m

Curved 0 - 3.3m

Column 0 - 3.3m

Plane 3.3 - 4.3m

Column 3.3 - 4.3m

Column 4.3 - 5.3m

Plane 5.3 - 6.3m

Column 5.3 - 6.3m

Plane 6.3 - 7.3m

Column 6.3 - 7.3m

Plane 7.3 - 8.3m

Column 7.3 - 8.3m

Column 8.3 - 9.3m

Plane 9.3 - 10.3m

Column 9.3 - 10.3m

Plane 10.3 - 11.3m

Column 10.3 - 11.3m

Plane 11.3 - 12.3m

Column 11.3 - 12.3m

Column 12.3 - 13.3m

Plane 13.3 -14.3

Column 13.3-14.3

Column 14.3-15.3

Plane 15.3-16.3

Curved 15.3-16.3

Column 15.3-16.3

Curved 16.3-17.3

Column 16.3-17.3

Curved 17.3-18.3

Curved 17.3-18.3

Curved 17.3-18.3

Curved 18.3-19.3

Column 18.3-19.3

Plane 19.3-20.3

Curved 19.3-20.3

Column 19.3-20.3

Plane 20.3-21.3

Curved 20.3-21.3

Column 20.3-21.3

Supply and delivery of 600mm dia FRC manhole frame to have clear opening of 600mm dia to suit 600mm dia FRC Cover Heavy Extra duty to duty stores on as per IS 12592:2002 to its latest revision with reinforcement details for covers and frames.

Providing cut stone set in C.M 1:3 for inlet pipe. 600 x 600 x 150 mm

Disposal of surplus earth including loading & unloading, conveyance within a distance of 2 Km and spreading as directed by the Departmental Engineer.

Supply and delivery of DI D/F pipe and specials and other DI specials and IS 1538/1984 and as amended from time to time for delivery at site of work including all taxes, duties, loading, freight, unloading and stacking at site etc complete

DUCTILE IRON CLASS PN10 FLANGED PIPES

4mts length - 200mmdia double flanged pipe

4mts length - 250mmdia double flanged pipe

4mts length - 350mmdia double flanged pipe

4mts length - 150mmdia double flanged pipe

Boring, Providing and installing cast in situ double bulb under reamed piles of specified diameter and length below pile cap in M-30 cement concrete, to carry a safe working load not less than specified, excluding the cost of Steel Reinforcement but including the cost of boring with bentonite solution and the length of the pile to be embedded in Pile Cap etc all complete

Refilling the outside with excavated earth(other then sand) complying with standard specification for filling the foundation including watering consolidation etc., complete as directed by the TWAD Board Officers.

Dismantling RCC,Clearing away and carefully stacking materials useful for Re-use for any thickness of Walls (Existing ELSR 0.6 Lakh Litre)

Providing House Service Connection in MDPE PE80 PN16 Blue Pipe as per Standerds ISO 4427 and tested as per BS 6920. with necessary specials and civil works for road cutting, Earth Work Excavations, Fitting Charges etc. Completed as directed by Departmental officers

House Service Connections - BT

House Service Connections - CC

Earth work excavation -Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth SS 20 B For Road Restoration

Supplying and filling in foundation and basement with Stone Dust in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.For Road Restoration

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and Eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification For Road Restoration

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification For Road Restoration

Initial Load Test

outine Load Test half to two percent of total number of piles