CT Civil’s horizontal directional drills are capable of drilling substrates from silts through to hard rock.


We can comfortably complete bore lengths of up to 400 metres to diameters of 500mm.


The HDD process includes several stages:


  • Mobilisation to site using our own low-loader and trucks

  • Site establishment with a set-up which ensures that the works are able to be completed in a safe manner and with minimal impact on the environment

  • Pre-drilling potholing using our NDD equipment to help ensure we are fully aware of the location of existing services

  • Drilling of a pilot hole guided by our tracking equipment to maintain the alignment and depth of the drill head to the design

  • Expanding the pilot hole to the required diameter for the service

  • Welding together of larger diameter pipe to form one pipeline string

  • Pulling the pipe through ready for the services

  • Remediation of the site and demobilisation of the plant


Our drilling staff have extensive experience in difficult terrains, knowledge of different geological formations and the skills to identify risks and take appropriate mitigation action to successfully complete each bore.


All this helps ensure that the pipeline is constructed to the required specifications and that the client’s requirements for safety, quality and environment are met to a high standard.

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