LANSDOWNE BRIDGE REPLACEMENT

Abergeldie was engaged as head contractor to construct a new 83m concrete road bridge across the Mulwaree River at Goulburn. The Australian and NSW governments jointly funded the $18.6 million project to construct the new Lansdowne Bridge to improve road safety with new wider lanes, improved approaches and a shared path across the bridge. Works were undertaken in close coordination with Roads and Maritime Services project team, design consultants and key third parties, including Goulburn Mulwaree Council.

The scope consisted of an upgrade and realignment of about 400m of the existing two-lane Bungonia Road approaches to the new bridge, an upgrade and realignment of about 220m of the existing two-lane Forbes Street approaches to the new bridge and the reconfiguration of its intersection with Bungonia Road. Reinforced concrete retaining walls and barriers were installed, along with new stormwater drainage, backfilling of bridge abutments, construction of a bridge deck, footpaths, landscaping and tree planting.

The major milestone for the project was in February of 2019 when a 250-tonne crane was brought to site and the team successfully installed 30 precast concrete girders ranging from 12m to 15m in length and weighing up to 23 tonnes.

The construction of the 400m stretch of new road approaches required major excavation works or in other words, large volumes of potential waste material. Excavated material from the construction of the new Lansdowne Bridge was able to be recycled and reused on site, with the remaining material reused by Goulburn Mulwaree Council for a nearby road construction project, providing a cost-effective and sustainable solution to an earthworks problem.

The new bridge and approaches provided a number of additional features and benefits to the road bridge users including, but not limited to, eliminating potential lead contamination of the waterway from deteriorating paintwork on the bridge, minimising disruption to the community by decreasing frequent bridge closures for maintenance work and significantly improving road safety. The construction of the new Lansdowne Bridge in 2019 has provided an invaluable piece of infrastructure to the Goulburn community.

Client:

Transport for NSW

Current status:

Completed

Start date:

August 2018

Completion period:

August 2019