CONSTRUCTION OF MANHOLES AND SEWERLINE IN SIVASAKTHI NAGAR IN WARD NO 4

Amount

Cutting of CC road for laying of sewerline including labour charges etc complete

Earthwork excavation in all kinds of soils such as hard stiff clay, stiff black cotton, hard red earth, shales, murum, gravel, stony earth and earth mixed with small size boulders and hard gravelly soil for laying sewer pipes (IS 3764: 1992) for the first depth of 2m below G.L. excluding refilling, disposal of surplus earth, and as directed by the Engineer in charge 0m to 2m Depth

Providing granular bedding (Bf=1.1to 1.9) with graded hard broken stone of size 20 mm, 10mm,6mm being the ratio of 2: 1.5: 1. laying in layers of 15cm thick including cost of all materials and labour charges such as ramming, consolidation etc., complete for pipe bedding and as directed by the Engineer incharge.

Supply of 200 mm diameters of RCC-NP3 Class socket and spigot pipes with Rubber Gasket etc complete as per Standard Specification.

Lowering of 200 mm dia RCC -NP3 class pipes to site and stacking properly along the alignment lowering into the trenches etc complete as per standard Specification 0m to 2m Depth

Jointing of 200 mm dia RCC NP3 class pipes (confined joint) with rubber gasket etc complete as per standard Specification .0m to 2m Depth

Provision for End concrete using 20 mm HBG stone for PCC 1:2:4 including mixing , curing etc., for SEWER and Manhole junction areas (0 to 4.50 m Depth)

Refilling the trenches with excavated earth including watering and consolidation as directed by the Engineer in Charge.

Barricading work (Where, there is less traffic areas and broader roads etc.) forlaying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm diaand 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 andhorizontal poles with coir rope including fixing charges and fixing 75mm diareflectors including earth work excavation for fixing vertical posts and finallyremoving and stacking the materials safely for further use etc., complete and as directed by Departmental officers.

Disposal of surplus excavated earth in pipe laying work, manholes etc. transporting to the sites specified by Engineer within a distance of 5.00 km lead including loading,unloading, spreading, levelling etc., complete and as directed by the Engineer incharge

construction of manholes of different depths as per type design/drawing on sewer lines and provided with tight fitting FRC manhole covers and frames of 600 mm dia., of approved make and provision of encapsulated PVC foot rests. The manhole shall be of brick work(with approved country killn burnt bricks of size 8 3/4" x 4 1/4 " x 2 1/4 " and using OPC Cement) .In CM 1:3 and plastered with CM 1:3 using Src cement , 20mm thick inside and 12mm thick outside as per type design. Benching and channeling should be provided in the manhole and suiltable diameter pipes for house service connection ( not exceeding 6 nos for each man hole) to be left in the manholes as directed by the engg incharge . The rate shall include earthwork backfilling and removal of surplus earth and depositing within 500 m. dewatering whereever necessary , barricading provision of danger lights and including all labour charges etc complete as per standard specification.1.00 - 1.50 m depth

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 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 of refilling for the additional earthwork etc complete and as directed by the Engineer Incharge.

110mm Dia PVC Pipe (6KSC)

20mm Dia PVC Pipe (10 KSC)

S.Ramesh