Adelaide South Road Superway

Adelaide South Road Superway

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.

SYSTRA’s role
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.

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