ABSTRACT
Plugging laterals with concrete plug bore not exceeding 300mm – – – – nr 87.87 bore 450mm – – – – nr 135.63
Plugging laterals with brickwork plug bore 750mm – – – – nr 408.37
Local internal repairs to brickwork area not exceeding 0.1m² – – – – nr 18.10 area 0.1-0.25m² – – – – nr 47.23 area 1m² – – – – nr 114.95 area 10m² – – – – nr 529.93
Grouting ends of redundant drains and sewers 100mm diameter 0.03 1.87 1.83 4.91 nr 8.61 300mm diameter 0.13 7.78 7.66 19.66 nr 35.10 450mm diameter 0.26 16.18 16.03 42.91 nr 75.12 600mm diameter 0.50 31.12 30.81 86.83 nr 148.76 1200mm diameter 1.70 105.81 104.62 245.74 nr 456.17
STABILIZATION OF EXISTING SEWERS
Pointing, cement mortar (1:3) faces of brickwork – – – – m² 38.62
hours £ £ £ rate £
RENOVATION OF EXISTING SEWERS
Sliplining GRP one piece unit; eggshape sewer 1300mm high – – – – m 410.34
Renovation of existing sewers sliplining – – – – hr 99.51
LATERALS TO RENOVATED SEWERS
Jointing bore not exceeding 150mm – – – – nr 63.59 bore 150-300mm – – – – nr 112.84 bore 450mm – – – – nr 157.98
EXISTING MANHOLES
Abandonment sealing redundant road gullies with grade C15 concrete 0.02 1.43 1.44 15.56 nr 18.43 sealing redundant chambers with grade C15 concrete
ne 1.0m deep to invert 0.09 5.60 5.56 62.67 nr 73.83 1.0-2.0m deep to invert 0.21 13.07 12.94 101.17 nr 127.18 2.0-3.0m deep to invert 0.55 34.23 33.82 168.33 nr 236.38
Alteration 100×100mm water stop tap boxes on 100×100mm brick chambers
raising the level by 150mm or less 0.06 3.73 3.73 19.49 nr 26.95 lowering the level by 150mm or less 0.04 2.49 2.46 11.30 nr 16.25
420×420mm cover and frame on 420×420mm in situ concrete chamber
raising the level by 150mm or less 0.10 6.22 6.19 34.80 nr 47.21 lowering the level by 150mm or less 0.06 3.73 3.73 22.98 nr 30.44
Raising the level of 700×700mm cover and frame on 700×500mm in situ concrete chamber
by 150mm or less 0.17 10.58 10.48 50.28 nr 71.34 600×600mm grade ‘A’ heavy duty manhole cover and frame on 600×600mm brick chamber
raising the level by 150mm or less 0.17 10.58 10.48 50.28 nr 71.34 raising the level by 150-300mm 0.21 13.07 12.94 62.57 nr 88.58 lowering the level by 150mm or less 0.10 6.22 6.19 31.85 nr 44.26
INTERRUPTIONS Preparation of existing sewers
cleaning – – – – hr 421.34 Stabilization of existing sewers
pointing – – – – hr 85.41
