The M5 (Centenary Motorway) is a motorway in the western suburbs of

Brisbane Brisbane ( ) is the capital and most populous city of the Australian state of Queensland, and the third-most populous city in Australia and Oceania, with a population of approximately 2.6 million. Brisbane lies at the centre of the South ...

, Australia. It starts as a two-lane arterial road at

Yamanto Yamanto is a suburb of Ipswich in the City of Ipswich, Queensland, Australia. At the 2016 Australian census the suburb recorded a population of 4,906. History The origin of the suburb is from a former 1860s cotton plantation which was orig ...

, travelling to Springfield, where it becomes a two-lane highway and travels across the M2

Logan Motorway The M2/M6 Logan Motorway is a 30-kilometre toll road between Ipswich and the M1 or Pacific Motorway at Loganholme, and the Gateway Motorway, providing access to the Gold Coast on the eastern seaboard and to the rural areas of the Darling Down ...

at Ellen Grove (formerly Metroad 4 / M4) and ends at Kenmore where it changes its name to the M5 Western Freeway. It features eight interchanges, the major ones being with the M7

Ipswich Motorway The Ipswich Motorway (M7) is a major road that connects Brisbane and Ipswich in South East Queensland, Australia. It commences at the junction of Ipswich Road and Granard Road and proceeds through to the M2 Logan Motorway interchange. It is t ...

(formerly Metroad 2 / M2) in Darra and another at Sinnamon Park. The Centenary Freeway links traffic from the west to the north of Brisbane. In October 2012, it was announced that the planned bikeway from Springfield to the existing bikeway along the Motorway would not proceed. Instead the existing two lane road would be expanded by two lanes.

Recent Motorway designation

Almost the entire length of road is of motorway standard and has now been designated as such. Those sections not of freeway standard are being upgraded and re-designated over time. As of October 2006 the blue hexagonal Metroad 5 signage is getting progressively replaced with M5 signage. Officially the M5 starts/ends at the Sumner Road Interchange and not at the M7/M5 Interchange. This will change when the M7/M5 Interchange is upgraded. The M5 has been identified to receive a major upgrade in the

South East Queensland Infrastructure Plan and Program The South East Queensland Infrastructure Plan and Program 2010–2031 (SEQIPP) is produced by the Queensland Department of Infrastructure and Planning and outlines estimated infrastructure investment across South East Queensland Australia to 2031. ...

. Additional lanes will be added to accommodate Transit Lane.

Extension

The motorway was extended to Yamanto and opened in late June 2009. The extension cost $366 million and was opened by Anna Bligh. Five bridges along the new section were named after local people, places, events and football teams, including botanist Lloyd Bird and the Box Flat Mine disaster.

Upgrades

Duplicate Centenary Bridge

A project to duplicate the Centenary Bridge, at a cost of $244 million, is due to commence construction in 2022.

Logan Motorway interchange upgrade

A project to upgrade the interchange with Logan Motorway, at a cost of $15 million, was in the detailed design stage in November 2021.

Interchanges

The interchange with the Logan Motorway is crossed by a viaduct for the two track railway crossing of the

Springfield railway line Springfield railway line is a suburban railway line in Brisbane, Australia that branches from the Ipswich/Rosewood line after Darra railway station. Construction of the line started on , and it opened on 2 December 2013. The line was develop ...

. The crossing is more than 800 metres long and has been designed so that its piers do not obstruct planned upgrades of both roads.

References

{{Road infrastructure in Brisbane Highways in Queensland Roads in Brisbane Ipswich, Queensland