REPAIR/REPLACEMENT/CLEANING TO SEWAGE LINES, MANHOLES, SEPTIC TANKS AND SOAKAGE WELLS AND REPAIR BOUNDARY WALL AT INS VIRBAHU,IU,MMT AND INS SATAVAHANA AREA UNDER AGE B/R-I (NB) VISAKHAPATNAM

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5 m in depth for foundation, etc and getting out in hard/dense soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm as in hard/dense soil complete all as specified and directed.

Removing excavated materials nexc 50 m and depositing where directed at a level n.exc 1.5 m above the starting point complete all as specified and directed.

Demolition and breaking 150mm bore drain pipes (SGSW/AC/RCC) set in cement mortar including cement concrete bedding and removal of debris/rubbles etc to a distance outside MD land complete all as specified and directed. (Note: Necessary axcavation and earth work shall be measured and paid seperately)

Demolition and breaking 200mm bore drain pipes (SGSW/AC/RCC) set in cement mortar including cement concrete bedding and removal of debris/rubbles etc to a distance outside MD land complete all as specified and directed. (Note: Necessary axcavation and earth work shall be measured and paid seperately)

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

M & L Reinforced concrete pipes, class NP2, 150 mm bore, laid and jointed with collars complete all as specified and as directed.

M & L for Plain cement concrete 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in concrete bed to drain pipes 150 mm bore including forming cradles; complete all as specified and directed.

M & L for Plain cement concrete 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in concrete bed to drain pipes 200 mm bore including forming cradles; complete all as specified and directed.

Opening the cover and Cleaning of Manholes of internal area n.exc 0.50 Sqm of any depth by pumping out the sewage water completely inluding disposing off sludge and other materials obtained from the manholes to a distance outside MD land, burried under ground (minimum 30 cm below ground level) including necessary excavation of pits in soft/loose soil and returning, filling in including sprinkling of bleaching powder at the rate of 0.75 kg/Sqm and dressing of surplus soil around slope complete all as directed by the Engr-in-Charge.