Client
Queensland Motorways Limited

Year
2015

Value
$10m

Location
Gateway Motorway Extension (GME), Kuraby

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An Infrastructure project for Queensland Motorways on the Gateway Motorway Extension Toll Road, Queensland

ADG were the engineering consultant Project Manager / Design Lead on this feasibility study. We identified that there was an opportunity to utilise the existing bridge in its current form to develop the required turn pocket for the new south facing on ramp.

Compton Road South Facing Ramps

CIVIL & ENVIRONMENTAL / Government

Gateway Motorway Extension (GME), Kuraby

The advantages of this value proposition meant that only minor modifications would be required to the existing bridge in comparison to the alternative, significant disruptions as a result of bridge widening over an existing fully operational motorway.

We envisage the adoption of this recommendation to result in significant time, cost and disruption savings resulting in significant improvements to the Benefit Cost Ratio.

The ADG team also drove the collation of the constraints and opportunities (of which there are many) including making sure that a balance is identified between the new south facing ramp alignments earthworks footprint, the impact of these on existing trunk services, all the while ensuring that the footprint does not encroach outside the existing gazetted lease boundaries.

We also identified that there was no need to realign the existing GME either side of the Compton Road overpass in the future as proposed by QML. Alternately, when it is to be upgraded to 6 lanes, ADG proposed utilising the existing wide median to house the new lanes and tie in our south facing ramps to the existing alignment, eliminating any sunk works.

ADG were the engineering consultant Project Manager / Design Lead on this feasibility study. We identified that there was an opportunity to utilise the existing bridge in its current form to develop the required turn pocket for the new south facing on ramp. The advantages of this value proposition meant that only minor modifications would be required to the existing bridge in comparison to the alternative, significant disruptions as a result of bridge widening over an existing fully operational motorway. We envisage the adoption of this recommendation to result in significant time, cost and disruption savings resulting in significant improvements to the Benefit Cost Ratio.

The ADG team also drove the collation of the constraints and opportunities (of which there are many) including making sure that a balance is identified between the new south facing ramp alignments earthworks footprint, the impact of these on existing trunk services, all the while ensuring that the footprint does not encroach outside the existing gazetted lease boundaries.

We also identified that there was no need to realign the existing GME either side of the Compton Road overpass in the future as proposed by QML. Alternately, when it is to be upgraded to 6 lanes, ADG proposed utilising the existing wide median to house the new lanes and tie in our south facing ramps to the existing alignment, eliminating any sunk works.