E1-1519-2025-01-Providing UGSS Main Line Interlinking, Damaged Manhole at Malligai Nagar Back side, Kothukarar Thotam,Su Ka Valasu North, Kandhaiyan Thottam, Thirumalai street, Thirumalai street Chidhambaranar street, 16 Main Road, Nehru street and t

Amount

Replacement of Underground Utilities (PVC Pipe) damaged during Earthwork excavation for pipe laying works including cost of additional earthwork excavation in all soil strata, including BT/CC road cutting, removal of slushy soil and replacing the pipeline with sound pipe,including supply and delivery of PVC pipes, couplers, jointing materials and required specials, cutting, conveying , laying, jointing and cost ofrefilling for the additional earthwork etc complete and as directed by the TWAD board officers. (SOR 24-25 P-215)

Shoring, and strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per IS 2314-1986 by driving on both sides of the trench from Ground Level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia. at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stacking it safely for other uses. It includes the cost of sheet piles and casurina poles including labour charges for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing Casurina poles, etc., complete and all other incidental charges for the depths (i)0-3mts, 0-4mts., (SOR 24-25 P-210)

0 - 3m depth

Providing the end concrete at all manholes with PCC 1:3:6 using 40 mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more thean 15cm thick including ramming curing, etc complete to proper shape to support the pipe and prevent leaking including all labour charges etc complete as per standard specification. (DATA 2024-25 P-6)

Main Sewer line

Construction of manholes of different depths as per type desing/drawiong on sewer ling and provided with tight fitting FRC manhole frames and covers of 600mm dia of approved make and provision of encapsulated PVC foot rests. The manhole shall be of brickwork (with approved Country Kiln Burnt bricks of size 8 3/4" x 4 1/4" x 2 3/4") in CM 1:5 and plastered with CM 1:3 20mm thick inside and 12mm thick outside as per type design. Benching and Channeling should be provided in the Manhole and suitable diameter pipes for house service connection (Not exceeding 6Nos for each Manhole) to be left in the manholes as directed by the Engineer in charge. The rate shall include earthwork, backfilling and de-watering wherever necessary Barricading, provision of danger lights as directed by the Engineer-in charge etc complete as per standard specification

1.00 -1.50 m depth

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board officers. (SOR 24-25 P-210)

V DHAMODHARAN (BID ID -1460800)