Our Values
Safety - Everybody goes home without harm at the end of the day
Sustainability - We act today with the future in mind
Relationships - Committed to creating and maintaining long-term relationships
People - We equip, inspire and empower our people to be their best
Creative - Creating solutions to meet our customer's needs
Excellence - Committed to getting it right the first time
Fair Return - Reward for all commensurate with the value delivered
Integrity - Honesty, respect and equitable treatment for all, without compromise
Tunnelling & Underground Mining
McConnell Dowell has completed over 100 km of tunnel projects in geological formations from soft alluvium to hard rock and has a proven reputation to complete fast-track underground projects.
McConnell Dowell's expertise covers the whole range of tunnelling from specialist soft ground techniques (full faced balanced earth pressure machines) through to hard rock tunnelling using TBM's, drill/blast and roadheader methods.
Download the Tunnelling Brochure here- (190k PDF - Apr 2005)
- Bogong Hydro Scheme, design and construction of 6 km of 5 m diameter headrace tunnel, two vertical shafts, a 1 km steel-lined high pressure tunnel, a power station to house twin 70 MW generators, and a tailrace outfall into Lake Guy, Kiewa Valley, Victoria, Australia
- Pike River 2,200 m incline and raised shaft, New Zealand
- Construction of 1,200 m long conveyor decline at Mandalong, NSW, Australia
- Blue Mountains Sewer Tunnel, NSW - excavation of approximately 18 km of gravity tunnels completed some 18 months ahead of schedule and achieved several world records for tunnelling. This tunnel (supported by rock bolts and shotcrete) had a 13 km continually advancing conveyor system to remove spoil as well as 12 No. ventilation shafts
- Senoko to Gambas Cable Tunnel, Singapore - Design and construct twin cable tunnels, 3.7 metre diameter, total length 3.4km together with 3 main access shafts and ME&I fit-out
- Eastern Distributor Project - southern tunnels section - excavation of double-decker road tunnels by heading and benching methods with roadheaders with hydraulic breakers in Sydney sandstone.