Malpas Road, Tatachilla (Onkaparinga) - 129289-24SA-RTR

Funding program Roads to Recovery Program
Status Under construction
Transport mode Road
Expected start/finish Feb 2025 - Dec 2025
Estimated project cost $1,862,000
Australian Government contribution $930,000
Local Council/Shire South Australian Local Government Grants Commission
State SA

Project description

The project targets critical issues on Malpas Road, which currently has a narrow width and deteriorating seal, leading to an uneven surface prone to failure. These conditions create safety risks, especially in an 80 km/h zone with heavy vehicle traffic. The narrow road increases congestion and accident risk, while the uneven seal affects vehicle stability and driver comfort.

The proposed work to upgrade Malpas Road aims to improve road stability, reduce congestion, and enhance safety and functionality along this crucial freight route, benefiting community travel and tourism. The project will involve profiling and replacing the underlying pavement in stages, with drainage improvements at the Bayliss Road intersection. Sealing works will also add shoulders over the 1 km stretch between Main South Road and Bayliss Road. Key enhancements include widening the road to provide 1 metre shoulders on both sides, upgrading the Bayliss Road intersection to an asphalt surface, strengthening the pavement east of Bayliss Road to eliminate undulations, and updating pavement markings with edge lines, a centre line, and retro-reflective raised markers (RRPMs) for improved visibility and safety. Balance of project costs being covered by The City of Onkaparinga Roads to Recovery allocation (127517-24SA-RTR).

Total cost of proposed project is $1,862,000

Project last updated: 27 Nov 2025

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Project disclaimer

Submissions or registrations of interest to be kept informed about the progress of this work, can be made directly via email to costestimation@infrastructure.gov.au or by using the form below.

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