HDD Shire Crossing services were required to complete this complex and technically challenging  project.

 

More than two years in the making, this project faced repeated delays in completion of the HDD works due to a variety of unforeseen challenges. These obstacles in conjunction with the extremely sensitive environment in which the project was taking place meant that, after two years of construction and multiple failed installations, the final bore was still incomplete leaving the project in a very compromised position with dire impacts for the local community looming.

 

Directhitt was approached due to our reputation for completing technically complex and environmentally sensitive HDD works. After consultation with the local council, and taking note of the given complexity of the project, Directhitt used its decades of experience and cutting edge equipment to not only learn from the project failures, but to create a strategy that would ensure the project was completed as professionally and as timely as possible.

 

Directhitt leveraged the power of our Maxi-Rig to undertake the HDD works, aided by cutting edge directional guidance systems to navigate the pilot hole along its pre-designed profile of more than 700 metres. The borehole was then reamed to 900mm in preparation for the installation of the DN 630 HDPE PN 20 Pipeline. The DN 630 HDPE pipe was subsequently welded on land before being towed offshore by the Directhitt Marine Support Vessel and connected to the drill string by divers to allow the HDD installation to be completed.

 

The end result was a perfect execution of the required HDD specifications, with Directhitt completing all works in just 8 weeks, a fraction of the time that had been anticipated by the project managers.

 

This was not the first time Directhitt had been brought in to finish a job that had become too technically challenging for the original HDD service provider to complete. However, Directhitt was grateful to be able to assist the people of 1770 by deploying our expertise and experience to get the job done.