Construction of 60000 litre OHT((12m Staging Height) and Extension pipeline in Ayyapuram village at Kuthukal valasai Panchayat in 15th CFC 2025-26

Earth work excavation and depositing on bank with an initial lead 10 m an lifit of 2 m in all soils such as red earth ,hard stiff clay soil, stiff black cotton soil,hard redearth,shales, murrams, gravel, stoney earth and earth mixed with small size boulders ete complete.,For Foundation SS 20B

First depth of 0 to 2 m

2nd depth of 2m to 3m

Collection and supply of Sand and filling in to the basement including cost and conveyance to the siteand all labour charges for filling as per standard specifications

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

Reinforced Cement Concrete 1:1.5:3 (one cement , one and half sand and three aggregate) using 20MM HBGS Metal excluding cost of reinforcement,centering,shuttering but including cost of mixing concrete,placing, vibirating with mechanical vibrator, finishing curing etc., complete as directed by departmental officers

1.50 m to 4.50m below G.L

0 m to 1.50m below G.L

0 m to 4.50m above G.L

4.50 m to 7.32 m From G.L

Above GL (+7.320 - +10.980m)

10.98 m to 14.64 m From G.L

14.64 m to 18.30 m From G.L

Supplying and eracting steel centering for sides and soffits including necessary supports and shuttering to the required height for RCC items using MS sheets or suitable size of BG 10 stiffened with welded MS angles of size 25mmx25mmx3mm of boarfing,laid over silver oak joints of size 10cmx6.5 cm spaced at 90 cm center to center and supported by casuarina props 10 cm to 13 cm dia spaced at 75 cm center to center complying with standard specification etc complete and as directed by departmental officers

PLANE SURFACE

Below G.L

G.L to 3.30 m

CURVED SURFACE

UP to 3.30 m

SQUARE COLUMN

Below G.L

Painting two coats with approved Plastic Emulsion over one coat of primer coat over cement plastered exposed surface of the reservoir including curing preparing the surface and curing etc complete and as directed by the departmental officers

Supplying fabiricating and placing in position of HSD Steel rods for reinforcement including the cost of steel and binding wire etc complete and as directed by departmental officers . RTS rod - Vide CE/NR/Vellore circular No 700 / AE5 /P&D/NR/Dt29.5.01

Refilling the foundations with exvacated earth including consolidation as directed by the TWA Board officers

Providing MS ladder & Handtrails arrangements in 60000 lits. Capacity OHT With 12.00m Stagging Height

Providing manhole cover of size 060 x 0.60m in RCC 1 : 1.5 :3 with suitable reinforcement 50 x 50 x 6mm MS angle fixed along edges and as directed by the departmental officers

Provision for pipe connection arrangements for inlet outlet scour and overfloww etc including cost of pipes,specials,valve,labour charges for lifiting aligning,cutting,threading,fixing and painting of GI Pipes with two coats of approved quality enamel paint etc complete as details below

65 mm dia GI pipes for inlet ,outlet, scour connection

65mm dia GMGate valve

Supply & Delivery of 65 mm G.I Elbow

Supply & Delivery of 65 mm G.I Coupling

Supply & Delivery of 65mm G.I.flange set

Providsion for RWH and Platform arragements

Earth work excavation in all clauses of soils with initial lead and lift except hard rock requiring blasting etc., complete for foundation as per SS 20B.

For first depth of 2m

For Core wall

Cement concrete 1:4:8 mix using 40mm ISS HBG metal including all cost and conveyance and all labour charges etc., complete

Brick work in CM 1:5 mix using third class country bricks of size 8 3/4 x 4 1/4 x 2 3/4 including all cost and conveyance of materials and labour charges etc., complete

Plastering with CM 1:5 mix using to 12mm thick including all cost and conveyance of all materials and all labour charges etc., complete.

Collection and supply of 40mm HBG metal and filling in to the recharge pits including cost and conveyance to the site and all labour charges for filling as per standard specifications.

Cement concrete 1:2:4 mix using 20mm ISS HBG metal including all cost and conveyance and all labour charges etc., complete

Extension of pipeline Arrangements at Thenpothai village and Panchayat

S/D 75mm 4KSC PVC Pipe

Earth work excavation with an initial lead and lift in hard stiff clay, black cotton, hard red earth, sub murram gravel, stone and earth mixed boulders as per SS20B for pipe laying work.

Refilling the excavated portions for Pipe Laying works with excavated earth as per ss20 B etc., complete.

Labour charges for Laying of GI, PVC rigid pipes with lead of 200m lowering into trench, laying in proper grade, alignment, jointing PVC coupler with specials and tested to the required pressure including conveyance of water upto 1km lead during the testing etc., complete.

S/D 75mm 4KSC PVC Pipe - delivery line

GST Amount for providing Service to Government Contract Works for the above RENEWAL Works. { GST Amount is the Total GST Amount for overall quoted amount above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)