Subsoil Drains

Task / Description Slow   Ave   Fast    Units
 Land Drains, Concrete, butt jointed, under 150mm dia, 0-5m run –   11.6  –    m/hr
 Land Drains, Concrete, butt jointed, under 150mm dia, 5-30m run –   14.1  –    m/hr
 Land Drains, Concrete, butt jointed, under 150mm dia, over 30m run –   18.8  –    m/hr
 Land Drains, Concrete, butt jointed, 150-225mm dia, 0-5m run –   8.4  –    m/hr
 Land Drains, Concrete, butt jointed, 150-225mm dia, 5-30m run –   10.2  –    m/hr
 Land Drains, Concrete, butt jointed, 150-225mm dia, over 30m run –   11.9  –    m/hr
 Land Drains, Concrete, butt jointed, 225-300mm dia, 0-5m run –   5.4  –    m/hr
 Land Drains, Concrete, butt jointed, 225-300mm dia, 5-30m run –   6.5  –    m/hr
 Land Drains, Concrete, butt jointed, 225-300mm dia, over 30m run –   7.9  –    m/hr