Construction of drainage

Earth work excavation and depositing on the bank with initial lead and lift of 10 m and initial lift of 2 m in hard stiff clay, stiff black cotton, hard red earth murram, gravel stoney earth and earth mixed with small size boulders and hard gravelly soils (SS 20 B) etc. complete as per standard specification.

Plain cement concrete Using 1:4:8 mix ( One cement , four Sand and Eight aggregates) using 40 mm gauge machine broken granite stone jelly for foundation including dewatering if found necessary and laid in layers of not more than 15 cm thick well rammed and consolidated etc complying with standard specification. TNDSS No. 28

Supplying and erecting centering to sides and soffits including supports and strutting with necessary centering for soffits upto 3 m height using mild steel sheet of size 90 cm x 60 cm x 10 mm guage with MS angles of size 25mm x 25mm x 3mm laid over silver oak (CW) joists of size 10 cm x 6 cm spaced upto 90cm c/c and casurina props of 10 cm to 13 cm dia spaced at 0.75 m c/c complying with standar specifications as per TNDSS No. 30 & 86 (sides)

Plain Cement concrete 1:2:4 (one cement, two sand and four aggregates) using machine broken granite jelly of 20mm size for all cement concrete works excluding cost of centering shuttering struttting and also the cost of reinforcement grill in posiition but including laying, vibrationg with mechanical vibrators uing finishing etc complete complying with standard specification TNDSS NO: 30

Supplying and erecting centering to sides and soffits including supports and strutting with necessary centering for soffits upto 3 m height using mild steel sheet of size 90 cm x 60 cm x 10 mm guage with MS angles of size 25mm x 25mm x 3mm laid over silver oak (CW) joists of size 10 cm x 6 cm spaced upto 90cm c/c and casurina props of 10 cm to 13 cm dia spaced at 0.75 m c/c complying with standar specifications as per TNDSS No. 30 & 86 (for slab)

Supplying, fabricating and placing in position of mild steel or TMT rods, including cost of steel and binding wire and all labour charges for cutting, bending, tying and placing in position etc, complete as per SS. TNDSS NO: 97 V,VI (S6) VII (S6) VII-3

Reinforced cement concrete 1:11/2:3 (one cement one and half sand and three aggregate) using 20mm size I.S.S. metal including cost conveyance of materials to site and all labour charges etc., mixing laying consolidating curring etc., but excluding cost of steel etc., complete as per standard specification as per TNDSS NO: 30 V,VI (S3) VII-3

Plastering in cement mortar 1:4 (one cement four sand) using 12 mm thick including cost and conveyance of all materials and labour charges etc, complete as per standard specification.

Supply and fising of MS grill (0.60x0.45 m) of approved dwsign for drainage opnings using necessary mild steel flats for inner and outer members which should be fixed on edges inclding priming coat of best approved quality red oxide primer ect complete.