The Flinders Link project extends Adelaide Metro’s existing Tonsley Line over the new Southern Expressway, connecting to the Flinders health and education precinct. The $141m project involved construction of two new rail stations, a 430-metre viaduct, 1.5km of new track and an elevated walkway. Gateway South (GWS), a Laing O’Rourke and Fulton Hogan joint venture, participated in design development with the Department of Infrastructure and Transport and was subsequently contracted for delivery. Innovations included Australia’s first use of Trac Rail Transposer machines and industry-leading digital project controls. Flinders Link was delivered on time and to budget, achieving a defect-free status.