Construction of 30000 Litres OHT at Kannithoppu AD street in Alangudi Panchayat of Ammapettai Block.

Construction of 30000 Litres OHT at Kannithoppu AD street in Alangudi Panchayat

Earthwork excavation and depositing on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by TWAD Board officers. Hard stiff clay, block cotton, hard red earth shales, murram, ordinary gravel, stoney eart

First depth of 2m

Second depthof 1m

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

For foundation

For GL Landing Platform for ladder

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for foundation including the cost of mixing concrete, ramming, curing etc., complete as directed by TWAD Board officers.

For foundation

For GL Brace

For GL Landing Platform for ladder

RCC in M30 GRADE using graded aggregtes of HBGs excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc., complete as directed by Department

For items 1.5m to 4.5m below GL

For items 0 to 1.50m below GL

For items 0m to 4.5m above GL

For items 4.51m to 7.32m above GL

For items 7.32m to 10.98m above GL

For items 10.98m to 14.64m above GL

For items above 14.64m & up to 18.30m from GL

Supplying and erecting steel centering for sides and soffits I including necessary supports' and shuttering to the required height for RCC items using MS sheets of suitable size of BG.10 stiffeneq with welded MS angles of size 25mm x 25mm x3mm of boarding

PLANE SURFACES

Below G.L.

ABOVE G.L. to 3.30m

Curved Surface

0 to 3.30m from floor level

Square column - Below G.L.

Ground level to 3.30 m

Square column - 3.31 to 4.30m

Square column - 4.31 to 5.30m

Square column - 5.31 to 6.30m

Square column - 6.31 to 7.30m

Square column - 7.31 to 8.30m

Square column - 8.31 to 9.30m

Square column - 9.31 to 10.30m

Square column -10.31 to 11.30m

Square column -11.31 to 12.30m

Painting two coats with approved cement paint over one coat of priming coat over cement plastered exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by Department officers

Supplying, fabricating and placing in position of HSD steel rods for Reinforcement including the cost of steel and binding wire etc., complete and as directed by TWAD Board officers.

FabricatFabrication, supply, delivery and fixing of outside MS ladder of 45cm wide made out Fabrication, supply, delivery and fixing of outside MS ladder of 45cm wide made out of 50x50x6mm MS angle for sides and steps in 16mm MS plain rods fixed at 30cm centre to centre welded, jointed etc., providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint for providing access to roof top of 60,000 lit. capacity OHT of suitable inclined length, including bottom anchorage and transportation and as directed by TWAD Board officers.

Providing Hand rails over the Roof slab by using 32 mm GI Pipe with 40mm x 6mm MS Flat and fixied with 12mm dia Fastner Bolt 75mm long and as directed by TWAD Bd officers

Providing and fixing of RCC inner access ladder in RCC 1:1.5:3 (one cement, one and half sane! and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc., to required height and clear width of 4Scm consisting of two Nos. of ve~ical post of 10cm x lScm and step slab of 25mm x 25mm etc., complete and as directed by TWAD Board officers. (Vide seperate Sheet)

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

Providing cut stone slab in CM 1:3 and as directed by TWAD Board officers

Providing manhole cover of size 1x1 0.75 X 0.75M in RCC 1: 1.5:3 with suitable reinforcement and 5O x 5O x 6mm MS angle fixed along edges and as directed by Department officers.

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers. As per item l(a) + l(b) Less item 2,3 & 4A & 4B Total

Supply and Delivery of following pipes and specials for OHT Connection

65 mm GI pipe for over flow

50mm Ø GI pipes for scour pipe 1xl

90mm Ø PVC Threaded coupler

65 mm Ø PVC threaded coupler

65mm Ø GI Tee

65mm Ø GI 900 Bend

65mm Ø GI coupler

65mm Ø GI union

65mm Ø GI Elbow

65x50mm Ø GI Reducer

75mmx 63mm PVC Reducer

75mm x 50mm PVC Threaded coupler

75x90 PVC Reducer

75x63 PVC Reducer

65mm Ø GM Gate valve

50mm Ø GM gate valve

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

Provision of Supply and fixing of Water Meter ( Sub Est)

Provision for 50 mm Water meter - TWAD SOR PAGE 81 , 16 clause

Water meter Dirt BOX

Water meter erection charges

Construction of Platform ( Sub Est)

Earth work excavation and initial lift of 2m in hard stiff clay, stiff black cotton soil, hard red earth,earth mixed with small sized boulders and hard gravelly soil as per SS 20B

Supplying and filling with best M- sand including watering ramming and consolidation etc.,complete

Cement concrete works 1:4:8 mix using 40mm size for levelling course for foundation,Basement including mixing, placing, finishing, curing etc., complete.

Brick work in cm 1:5mix using country bricks of including cost & conveyance of all materials and all labour charges for etc, Complete.,.

Cement concrete works 1:2:4 mix using 20mm size for levelling course for foundation,Basement including mixing, placing, finishing, curing etc., complete.

Plastering with Cement Mortar 1:5 (one part of cement and five part of sand) 12mm thk. Including labour charges for mixing,finishing, curing etc.complete

Pumping Main line work 90mm dia pipe (Sub Est)

Earth work excavation and depositing on back with an initial lead of 10M and initial lift of 2M in hard stiff clay stiff block cotton sow hard red earth sheils murrams, gravel stoney earth and earth mixed with 50% fair sized boulders etc., complete. Foundation.

90 mm OD PVC 6ksc pipe

Supply & Delivery of Rigid PVC pipes to a Standard length of 6m with one end socket and other end free the rate should inclusive of all taxes.

90 mm OD PVC 6ksc pipe

Conveyance of Rigid PVC pipes trench with in a lead of 200m lowering into trench and laying to proper grade alignment jointing with PVC coupler with cement paste and testing to the required pressure including conveyance of water up to 1 km lead for filling during testing including cost of materials etc., complete.

90 mm OD PVC 6ksc pipe

Refilling in the trench after the pipes are laid with excavated 3d earth (other than sand) complying with the standard specification as directed by the departmental officers, complete Qty as per item no13.48

90 mm OD PVC 6ksc pipe

Supply and delivery of the following meterials

90 mm pvc coupler 6Ksc

90 mm pvc Tee 6Ksc

90 mm pvc Elbow

90 mm pvc End Cap

Extension of pipe line work 63mm dia pipe (Sub Est)

Earth work excavation and depositing on back with an initial lead of 10M and initial lift of 2M in hard stiff clay stiff block cotton sow hard red earth sheils murrams, gravel stoney earth and earth mixed with 50% fair sized boulders etc., complete. Foundation.

63 mm OD PVC 4 ksc pipe

Supply & Delivery of Rigid PVC pipes to a Standard length of 6m with one end socket and other end free the rate should inclusive of all taxes.

63mm OD PVC 4Ksc Pipe

Conveyance of Rigid PVC pipes trench with in a lead of 200m lowering into trench and laying to proper grade alignment jointing with PVC coupler with cement paste and testing to the required pressure including conveyance of water up to 1 km lead for filling during testing including cost of materials etc., complete.

63mm OD PVC 4Ksc Pipe

Refilling in the trench after the pipes are laid with excavated 3d earth (other than sand) complying with the standard specification as directed by the departmental officers, complete Qty as per item no13.48

63mm OD PVC 4Ksc Pipe

Supply and delivery of the following meterials

63 mm pvc coupler

63 mm pvc Tee

63 mm pvc Elbow

GST 18 % Amount for providing Service to Government Contract Works for the above Construction Works. { GST Amount is the Total GST 18 % Amount for total overall quoted amount above this row in column "BB" for all works in this package}

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