A recently completed project for Harris Civil and Yarra Valley Water in Canterbury was quite complex, involving HDD in a combination of existing sewer network, parkland and major roadway. A new 600 mm HDPE sewer pipeline was installed for 230 m at depths of approximately 8 m. The project presented some difficulties but by working closely with the client, BTB was able to keep them informed of progress at all times and cooperated to ensure that the final outcome was successful.

BTB is presently working on the Flinders Sewer Reticulation project, on which HDD was the preferred method of construction. Approximately 12 km of pressure sewer pipeline, with sizes ranging from 40 to 250 mm, is being installed using BTB’s new Vermeer 3650 directional drill. BTB is the prime contractor on this project and it is progressing very well, with little disruption to the existing landscape of this very nice and peaceful part of the world, once again demonstrating the advantages of HDD. All construction is ahead of schedule and heading towards completion and client satisfaction.

Another large project that BTB has recently started is for Mainco in Melbourne. This project involves using HDD to install a single 110 mm HDPE conduit under existing railway tracks at over 120 suburban rail stations to allow the installation of new fibre optic and electrical cables for the new ticketing system that will start early next year. BTB crews are drilling under the existing tracks in all types of ground conditions, including rock. New pits and conduits are then being installed by specialist BTB crews, and plant - linked into the existing station building infrastructure - and then the optic fibre and electrical cable is also being installed by BTB.

These projects highlight the adaptability of BTB Australia in relation to specialist HDD projects. BTB has the machinery and skills to assist in many infrastructure projects requiring Trenchless Technology, ranging from large diameter sewer, gas and water pipelines in all ground conditions. BTB civil crews can assist and complete any excavation and civil components of the work.