Laing O’Rourke designed and constructed the third and final stage of this project; a 5.1km section in the Kilmany area. The centrepiece of this upgrade was a 95m long single span steel arch suspension rail bridge. The bridge was constructed next to the current rail line and slid into place, minimising the disruptions to rail passengers. The impressive 95m Rail Bridge replaced the existing road-over-rail design and allows a dual-lane carriageway underpass under the rail line.
To minimise disruption to the rail line, the bridge’s concrete deck and steel arch were constructed offline then transported into place using a slide rail and high-strength jacking system. The duplication of the highway added an extra two lanes to create a dual-lane carriageway separated by a central median. There were 3 additional intersection upgrades and 3 waterway crossings.
Laing O’Rourke – Aurecon – MRPV
$150 – $200m
2021 – 2024