The scheme formed part of a new foul sewer construction replacing existing pipework which had collapsed necessitating emergency over pumping between existing manholes. All work including the construction of shafts, and installation of new pipeline connections in shafts and reinstatement was to be undertaken by a single contractor.

This project demonstrate how AWL can install different diameters of pipe with variable drive lengths without the need to use any third-party equipment.

To read project case study

Mobilisation commences at Askern South Yorkshire for the installation of 500 metres of 323mmØ Steel Pipework by Horizontal Directional Drilling.

Prior to drilling Allen Watson have fusion welded a SDR11 slurry return line from the reception pit back to a mud recycling unit.

The bore will be through sands, silts with majority in mudstone and sandstone drilling between 12m to 14m BGL using AWL 160te directional drill rig complete with mud mixing and recycling unit, walk-over tracking, 6¾” mud motor complete with drill bit for piloting followed by appropriate sized reamers for enlarging the bore to suit the pipe installation.