The South Road Superway project is the South Australian’s most complex engineering road construction project to date.
The South Road Superway serves as a direct connector between the A13 Highway and the industrial area to the north of Adelaïde. The project consists of 3 km of elevated roadway including mainline and access ramps. The structure consists of multiple lines of box girders. The box girders are supported by architectural piers supported on 1.05 m diameter CFA piles. Two types of precast segments were used on the project: single cell with internal struts maximum 17 m wide and single cell maximum 13.5 m wide. The 66 m long typical spans and 80 m long special span were erected in balanced cantilever with a combination of overhead gantry, crane on ground and lifting frames on deck. Access ramps were built span-by-span on falsework.
In its capacity of Bridge Design Consultant, SYSTRA (then IBT) undertook
- The design of the southern section of the viaduct (superstructure, piers, foundations) including construction engineering,
- The independent verification (IV) of the northern section of the viaduct designed by GHD/SMEC. The latter were also in charge of the global engineering for the whole project.