SPECIAL REPAIR REPLACEMENT TO SEWAGE LINE NETWORK SYSTEM FOR E ITI

Excavation in trenches not exceeding 1.50 m wide and not exceeding 1.50 m deep along the existing sewage line carefully for placing taking out and getting out in soft/loose of soil complete all as specified and directed.

Excavation in trenches exceeding 1.50 m deep and not exceeding 3.00 m deep along the existing sewage line carefully for placing taking out and getting out in soft/loose of soil complete all as specified and directed.

Returning and filling soil in layers not exceeding 25cm thick each layer including spreading, leveling, watering and well ramming all as speicified and directed.

Removal of surplus excavated material to a distance not exc 50 m and deposited where directed at a level not exc 1.50 m above starting point all as specified and directed.

Demolition and breaking up 200mm dia drain pipes (salt glazed ware, AC or reinforced concrete) set in cement mortar.

M & L salt glazed stone ware drain pipes of internal dia 200 mm bore grade 'A' laid in trenches and jointed in cement mortar complete all as specified and as directed.

M&L reinforced cement concrete pipes 200 mm bore, class NP2, laid and jointed in position with collars complete all as specified and as directed.

M&L for concrete bed to drain pipe including packing under and haunching against the sides of drain pipe after they are laid and tested in PCC 1:3:6 type C-2 for 200mm dia all as specified and directed

Punchuring and necessary repairs to existing SGSW pipe of 200mm dia for clearing blockages and sealing with piece of pipe, covering the entire area with cement concrete PCC 1:3:6 type C1 to avoid unhygenic condition and concreting around the pipe including necessary excavation complete all as specified. Note for item No 12,13 : Rate quoted deemed to include necessary excavation and earth work in any type of soil, returning filling complete all as specified and directed.

Cutting into existing manholes for connecting new drains pipe of 200 mm dia, making good to pipe and rendering cutting out existing benching for and forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-1 using 20 mm graded stone aggregate, surfaces smooth finished and reforming benching as required complete all as specified and as directed.