Construction of OHT 10000 Ltr Capacity at Kothankudi Habitation in Kothankudi Panchayat in Thalanayar Panchayat Union

Amount

First depth of 0 to 2 m

Second depth of 2m to 3m

Sand filling for foundation with clear river sand including cost of sand ,watering, ramming and consolidation etc complete as directed by TWAD Bord officers

Plain Cement Concrete 1:4:8 (one cement, four sand and eight hard granite broken stone of 40mm size ISS gauge) for foundation and footing including mixing, placing, ramming ,finishing curing etc. complete in accordance with standard specification and as directed by the TWAD Board Officers.

Below 1.5m from GL

0m to 1.50m below GL

0m to 4.50m above GL

4.50 m to 7.32 m above GL

7.32 m to 10.98 m above GL

Below GL

From GL to 3.30m

From 3.30m to 4.30m above GL

From 6.30m to 7.30m

Square Column Below GL and upto 3.30m above GL

3.31m to 4.30m ht

4.31m to 5.30m ht

5.31m to 6.30m ht

6.31m to 7.30m ht

Curved Surface - upto 3.30m ht.

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc.( The steel should conform to the relevant ISspecification and supplied with test certificate Fe. 415 grade as per IS specification No.1786/1985 and as amended from time to time) delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete.and as directed by the TWAD Board officers.

Painting two coats with approved cement paint over one priming coat of white cement over cement plastered wall surface and ceiling including cleaning preparing the surface and curing etc., complete (using cement paint of colour as approved by the Departmental officer) and as directed by the TWAD Board officers.

Providing Fusion Bonded Epoxy coting not lees then 175microns thickness and upto 300microns 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 carefulhandling, PVC coated binding wires, tochup material supplied by coating agency, repair work, loading, unloaing and strengthening of bent rods etc., complete as per specification and as directed by the engineer in chrge.

Supply and Delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for sides and steps in 16 mm MS plain rods fixed at 30cm C/C welded jointed etc ., providing with suitable side supports, clamps and locking arrangements provided with two coats of approved enamel paint over one coat of redoxide paint , for providing access to roof top of 20000 litres OHT of suitable inclined length , including bottom anchorage and transportation and as directed by TWAD Board officers. The rate includes concrete bed block in CC 1:2:4 using 20mm HBGS at top and bottom of suitable size with necessry anchor bolts.

Providing and fixing of RCC inner access ladder in RCC 1:11/2 :3 (one cement,one and half sand and three aggregate) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centring,shuttering charges, mixing concrete,curing etc. to required height and clear width of 45 cm consisting of 2 nos. of vertical post of 10 cm x 15 cm and step slab of 25mm x 25mm etc.complete and as directed by TWAD Board Officers.

Providing 110mm PVC vent cowl arrangements mosquito proof nylon net and as directed by TWAD Board officers

Supply and fixing of cut stone of size 0.60m x 0.60m x 0.10m in CM 1;3(one cement and three sand) below inlet pipe for Service Reservoir as directed by TWAD Board Officers.

Supplying and fixing of water tight Manhole frame and cover ofMedium type) of size 0.60 x 0.60m in RCC 1 : 11/2:3 with suitable reinforcement and 50 x 50 x 6mm MS angle fixed along edges and as directed by the TWAD Board Officers.

Painting TWAD Board Emblem on the Service Reservoir with enamal paint as per Board's specification and as directed by TWAD Board Officers.

65mm GI pipes for inlet connection

65mm GI pipes for over flow & rain water harvesting pipe

50mm GI pipes for scour pipe

65mm GI pipe for delivery pipe

90mm PVC Threaded coupler

63mm PVC Threaded coupler

65mm dia GI Tee

65mm dia GI bend 90

65mm GI coupler

65mm GI union

65mm GI Elbow

65mm flange set

50mm flange set

50mm GI union

50mm GI Elbow

65mm GI Tee

65x50mm GI reducer

75mmx63mm PVC reducer

65mm GM gate valve

50mm GM gate valve

63 mm PVC 4Ksc Pipe

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers

Labour charges for GI pipe connection to the OHT, for inlet, outlet, overflow and scour arrangements including cutting and threading, earth work excavation & refilling.

O.V. Anbazhagan (BID ID -1103757)