Civils and Trenchless Construction
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50 years of excellence
McAllister has over 50 years of experience working in the civil engineering sector. We understand the importance of underground utilities and infrastructure, and we have the skills and technology to protect these assets while building with confidence. Our services include:
- Feasibility Studies
- Designs
- Access civils
- Pipe installation (auger boring, pipe bursting, directional drill and micro tunnelling)
- Rehabilitation (GRP)
What is trenchless construction?
Trenchless construction methods are among the most efficient ways of installing new pipelines. These methods offer excellent options for crossing under obstacles such as existing buildings, rivers, railways, and motorways because they do not require an open trench. Although no trench is required, access points are needed at each end of the install which can be as simple as a shallow pit to a substantial shaft.
Specialist sewer or pipeline access
Pipelines are often difficult to access. They run under or close to complex infrastructure like railway lines, airport runways and highways, and plunge to depths of up to 20 metres. We can access even the most out-of-the-way pipes through trenchless civil engineering. Our engineers can design and build shafts, timber headings, or pipe jacking for side access. We can also build manholes on exiting sewers to help you operate and maintain them.
Feasibility studies
McAllister can conduct site investigations, initial designs, and survey reports to help you prepare feasibility studies. We can help you increase your projects success with trenchless techniques like horizontal directional drilling, pipe jacking, micro tunnelling, or guided auger boring. We have the equipment and inhouse expertise to deliver these and other techniques to a range of industries – from water to oil and gas.
Trenchless pipe installation
Trenchless techniques offer efficient pipe installation. There are so many trenchless methods – it is important to choose the right one for the ground conditions on your project. McAllister has worked in a wide variety of subsurface environments – from railways to rivers. We can help you deliver the right trenchless technique to meet your specific challenges.
Tunnel and culvert rehabilitation
Tunnels and culverts are expensive to design and install. It is important they are maintained to maximise their lifespan. Tunnel and culvert rehabilitation reverses the damage caused by infiltration, structural defects, or corrosion. We can even use these techniques to increase drainage capacity with cross passages.