Our complete design-and-build services include:
- Road tunnels
- Rail tunnels
- Urban metro / underground tunnels
- Utility tunnels
We undertake all forms of tunneling in all types of ground conditions - from drill-and-blast methods in hard rock, to EPB tunneling in New York City. We also specialize in associated shaft construction of all sizes and types, using a variety of in-house techniques including secant pile, diaphragm-wall, as well as traditional jacking and underpinning methods.