Warringah Freeway Overpass

CPB – DT Infrastructure Gamuda

Sector: Urban, Public Infrastructure

Unique Attributes

Pedestrian Overpass demolition and removal – spanning major arterial road in North Sydney. Maintaining north/south bound traffic flows for more than 165,000 vehicles each day
All major crane lifts were completed within strict curfew hours; opening the main arterial for commuters by the next morning
Cut and lift of bridge span and two piers completed successfully within a 20hr shut down period

Early preparation works and temporary works included propping and other retention measures to stabilise the bridge spans and piers
Complex crane lifts were undertaken during the night with each individual bridge span weighing up to 100 tonnes and measuring up to 30 metres in length, and piers weighing over 35 tonnes
Logistical planning and execution for transport of bridge spans
Safe management and removal of unexpected asbestos finds within the bridge head stocks