ABSTRACT
Removing intrusions mS brickwork - - - - 84.00
concrete - - - - mS 110.73 reinforced cona-ete - - - - mS 140.73
Local internal repairs t) brickwork area not exceeding 0.1 m2 - - - - nr 12.79 area 0.1 - 0.25 m2 - - - - nr 33.42 area 1m2 - - - - nr 82.52 area 10 m2 - - - - nr 374.40
Grouting ends of redundant drains and sewers 100 mm diameter 0.03 1.50 0.76 3.38 nr 5.84 300 mm diameter 0.13 6.24 3.18 13.52 nr 22.M 450 mm diameter 0.26 12.98 6.65 29.50 nr 48.13 600 mm diameter 0.50 24.96 12.78 59.70 nr 97.44 1200 mm diameter 1.70 84.88 43.39 188.96 nr 297.23
STABILIZATION OF EXISTING SEWERS
Item Unit hours £ £ £ rate £
RENOVA110N OF EXlSTlNG SEWERS
Sliplining GRP one piece unit; eggshape sewer 21300 mm high - - - - m 286.81
LATERALS TO RENOVATED SEWERS
Jointing bore not exceeding 150 mm - - - - nr 44.47 bore 150 - 300 mm - - - - nr 78.90 bore 450 mm - - - - nr 110.45
EXlS11NG MANHOLES
Abandonment sealing redundant road gullies with grade C15 concrete 0.02 1.15 0.60 10.70 nr 12.44 sealing redundant chambers with grade C15 concrete ne 1.0 m deep to invert 0.09 4.49 2.30 43.09 nr 49.89 1.0 - 2.0 m deep to invert 0.21 10.49 5.36 69.56 nr 85.41 2.0 - 3.0 m deep to invert 0.55 27.46 14.02 115.74 nr 157.23
Alteration 100 x 100 mm water stop tap boxes on 100 x 100 mm brick chambers
raising the level by 150 mm or less 0.06 3.00 1.55 12.69 nr 17.23 lowering the level by 150 mm or less 0.04 2.00 1.02 7.06 nr 10.08
420 x 420 mm cover and frame on 420 x 420 mm in-situ concrete chamber
raising the level by 150 mm or less 0.10 4.99 2.57 22.16 nr 29.71 lowering the level by 150 mm or less 0.06 3.00 1.55 13.67 nr 18.21
Raising the level of 700 x 700 mm CO\l9l" and frame on 700 x 500 mm in-situ concrete chamber
by 150 mm or less 0.17 8.49 4.34 32.44 nr 45.28 600 x 600 mm grade "AU heavy duty manhole cover and frame on 600 x EI)() mm brick dlamber
raising the level by 150 mm or less 0.17 8.49 4.34 32.44 nr 45.28 raising the level by 150 - 300 mm 0.21 10.49 5.36 40.89 nr 58.74 lowering the level by 150 mm or less 0.10 4.99 2.57 19.n nr 27.33
INTERRUPTIONS
Preparation of existing SaNers cleaning - - - - hr 292.00
StabIlization of existing sewers pointing - - - - hr 81.48
