Capability Statement

We proposed and implemented an alternative construction approach for the Meander Dam project, with our roller compacted concrete (RCC) solution reducing environmental risk and delivering cost, productivity and program benefits for the Tasmanian Government.

Roller-compacted concrete (RCC) is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios. The drier mix has many time and cost benefits over conventional mass concrete, including higher rates of concrete placement, lower material costs, and lower costs associated with post-cooling and formwork

The project scope included stabilising the banks of the Waikato River alongside the control gates that manage water flow to the Waikato Hydropower System.

Powerful water flows erode the banks alongside the gates, and Mercury’s asset surveillance regime had identified the need for intervention to prevent further erosion.

In joint venture with Diona (the Water North JV) we're one of three major framework partners delivering SA Water’s multi-billion dollar capital delivery program. The 'Frameworks' model fosters collaboration and innovation in the planning and delivery of water projects across metro and regional South Australia.

During the first four years (2020 - 24) our team delivered approximately 150 projects, including the design and construction of:

In an alliance with Brisbane Water we upgraded the Lake Manchester Dam, 25 km west of Brisbane, to meet current Australian National Committee on Large Dams (ANCOLD) guidelines. The inherent instability of the dam structure required some imaginative approaches.

The safety issues needing rectification included inadequate spillway capacity; the potential instability of the dam when water levels reached the crest of the dam; the possibility of the washing out of the downstream toe of the dam during major flood events; and potential erosion problems in the ‘plunge pool’ of the spillway.

We improved the safety and performance of one of the largest dams in the Southern Hemisphere for the NSW state government. They selected us based on the quality of our technical solution, our approach to protecting the sensitive river environment, and our strategies for minimising impacts on the nearby tourist park.

We secured the project after an extensive pre-qualification and competative early tender involvement (ETI) process.

We developed some innovative design and construction solutions to upgrade 1950s-built Cosseys Dam, after Watercare detected significant deterioration. Located in the environmentally sensitive Hunua Ranges, the earth fill structure is Auckland's third largest dam and holds 14% of the city’s water storage.

The earthfill dam stands 49 m high and 170 m long at the crest. It has a 230 m long diversion tunnel linking to a valve tower and scour systems.

The McConnell Dowell Decmil Joint Venture delivered the Mordialloc Freeway in Melbourne’s south east four weeks ahead of schedule while setting new industry benchmarks in sustainability and workplace mental health management.

The nine kilometre freeway links the Mornington Peninsula Freeway at Springvale Road in Aspendale Gardens to the Dingley Bypass in Dingley Village, creating a continuous freeway from Frankston To Clayton.

We partnered with Major Road Projects Victoria (MRPV) to deliver the Healesville-Koo Wee Rup Road Upgrade, a key transport route in Melbourne's outer south-eastern growth corridor.

This vital upgrade lowered the risk and severity of crashes, improved traffic flow and travel times, and introduced a new link to the southeast's walking and cycling network.

We partnered with Major Road Projects Victoria (MRPV) to deliver the Narre Warren-Cranbourne Road Upgrade in Melbourne's south eastern growth corridor.

Narre Warren-Cranbourne Road is a key north-south arterial route through the City of Casey in Melbourne's outer south east connecting South Gippsland Highway to the freeway network and Narre Warren. It plays a critical role in the local road network, providing network connectivity for the established areas of Narre Warren, Cranbourne and the fast-growing suburb of Cranbourne East. It also provides a key link between South Gippsland Highway, Princes Highway and the Monash Freeway.