ABSTRACT
Drains/sewers/culverts gang (small bore) 0.4 m3 hydraulic excavator - - 24.32 - - - 2t dumper - 30% of time - - 2.04 - - - 360mm compaction plate - 30% of time - - 0.58 - - - 2.80m3/min compressor, 2 tool - 30% of time - - 1.87 - - - disc saw - 30% of time - - 0.42 - - - extra 15ft/50m hose - 30% of time - - 0.10 - - - small pump - 30% of time - - 0.77 - - - Total Gang Rate / Hour - £ 30.10 - - - Note: in addition to the above are the following allowances for trench struts/props/sheeting, assuming the need for close boarded earth support: - - - - - - average 1.00 m deep - - 1.32 - m 1.32 average 1.50 m deep - - 1.47 - m 1.47 average 2.00 m deep - - 1.70 - m 1.70 average 2.50 m deep - - 2.02 - m 2.02 average 3.00 m deep - - 2.55 - m 2.55 average 3.50 m deep - - 3.15 - m 3.15 Note: excavation in hard materials as above but with the addition of breaker attachments to the excavator as follows: - - - - - - generally : BRH91 (141kg) - - 3.88 - - 3.88 reinforced concrete; BRH125 (310kg) - - 5.47 - - 5.47
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
(Drains/sewers/culverts gang (large bore)) i.e. greater than 700 mm bore 0.4 m3 hydraulic excavator - - 24.32 - - - 2t dumper - 30% of time - - 2.04 - - - 2.80 m3/min compressor, 2 tool - 30% of time - - 1.87 - - - compaction plate / roller - 30% of time - - 0.58 - - - disc saw - 30% of time - - 0.36 - - - small pump - 30% of time - - 0.77 - - - 10 t crawler crane - 30% of time - - 8.12 - - - Total Gang Rate / Hour - £ 38.06 - - -
Gullies 2t dumper - 30% of time - - 2.04 - - - Stihl disc saw - 30% of time - - 0.36 - - - Total Gang Rate / Hour - £ 2.40 - - -
RESOURCES - MATERIALS
For the purposes of bedding widths for pipe bedding materials, trenches have been taken as exceeding 1.50 m in depth; trenches to lesser depths are generally 150 mm narrower than those given here so that the rates need to be reduced proportionately.
