Construction of OHT 60000 litre Capacity at Varakalpattu in Varakalpattu Panchayat

Earthwork Excavation and depositing on bank wiyh initial lead of 10m and lift of 2m in the following classification of soils as directed by TWAD Board officers.

Second Depth. OF 2m from 2m to 4m below GL For column footing

Sand Filling with clear River sand including cost of sand,watering,ramming,and consolidation etc.

C.C.1:4:8 Mix using 40mm iss metal for leveling course including cost of mixing concrete, ramming, curing etc.

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 viarator, finishing, curing etc., complete as directed by TWAD Board officers.

For column upto GL .

Brace at 2.65m ht (B1)

For items 4.51 m to 7.32m above GL

For items 7.32m 10.98m above GL

Floor slab at 11.61m to 11.85m above GL

Roof slab at 14.75m to 14.91m above GL

Supplying Fabricating and Placing in Possition of HSD Steel rods for Reinforcement including cost of Steel and binding wire etc.

Brace at 2.65m ht (B1)

For items 4.51 m to 7.32m above GL

For items 7.32m 10.98m above GL

Floor slab at 11.61m to 11.85m above GL

Roof slab at 14.75m to 14.91m above GL

For items 4.51 m to 7.32m above GL

For items 7.32m 10.98m above GL

Floor slab at 11.61m to 11.85m above GL

Roof slab at 14.75m to 14.91m above GL

Deduct brace Jn

Floor slab at 11.61m to 11.85m above GL

Roof slab at 14.75m to 14.91m above GL

Painting two coats with approved Cement Paint over one coat of Priming coat over cement plastered surface of the Reservoir including cleaning, preparingthe surface etc.

Fabrication, supply,delivery and fixing of out side MS Ladder of 45cm wide made out of 50x50x6 mmMS angle for sides and steps in 16mm MS Plain rod fixed at 30cm centre tocentre welded, jointedetc,Providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint etc.

Providing and fixing of R.C.C. inner access ladder in R.C.C. 1:1.5:3 mix using 20mm ISS Metal including cost of reinforcement ,placing in grill in possition ,centering,shuttering charges mixing concrete curing etc..

Providing and fixing of R.C.C. inner access ladder in R.C.C. 1:1.5:3 mix using 20mm ISS Metal including cost of reinforcement ,placing in grill in possition ,centering,shuttering charges mixing concrete curing etc.

Providing Cut Stone Slab in cm 1:3 mix

Providing man hole cover of size 0.60x0.60 in R.C.C. 1:1.5:3 mix with suitable reinforcement, 50x50x6mm MS Angle fixed along edges etc.

65mm dia GI pipes for inlet connection.

65mm dia GI elbow

65mm dia GI Flange set

65mm dia GI coupling

80mm dia GI pipes

90mm dia PVC Threaded coupler

80mm dia GI Tee

80mm dia GI elbow

80mm dia GM Gate valve

80mm dia GI Flange set

80mm dia GI coupling

80mm dia GI Dummy

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

Providing hand rails over the roof slab by using 32mm GI pipe with 40mm x 6mm MS flat and fixed with 12mm dia fastner bolt 75mm long and as directed by TWAD 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

Provation of Pipe Line Arrangements

Provision for Name board