Tonkin Gap Alliance – Tonkin Gap Bridge Construction

The $290 million Tonkin Gap Project was implemented to address the current bottlenecks where the highway, which carries approx. 120,000 vpd, reduces from three lanes to two lanes in Bayswater and Redcliffe. It is also providing rail-enabling works for the METRONET Morley-Ellenbrook Line along Tonkin Highway. The project runs from Tokin Highway at Collier Road to Dunreath Drive and includes the Guildford Road interchange and crosses the Swan River.

FSC's Role

Major subcontractor engaged by the TGA to construct:

• the substructure and casting bed for the
  incrementally launched bridge spanning
  the Swan River,
• dual rail bridges over road at the Morley
  Drive intersection, and
• three footbridges at the Great Eastern
  Highway interchange.

Scope of works

• Construction of the launched bridges casting beds and beams.
• Construction of pier footings, piers and restraint blocks – including installation of pier bearing pads and bearings.
• Construction of all substructure pier and pilecap footings, wingwalls including all cast in items for the abutments.
• Landing and securing tee-roff beams and the supply and construction of all edge protection prior to beam lifts.
• All form, reo and pour scopes associated with the works.
• Pre-pour and insitu pours for decks, piers, columns and abutments.
• Median concrete barrier, bridge barrier for full bridge length.
• All associated temporary works designs and installations.