Centenary Bridge Upgrade Frequently Asked Questions


What are the features of the Centenary Bridge Upgrade?

The main features of the Centenary Bridge Upgrade are a new three-lane northbound bridge and remediation of the existing bridge to create a 3-lane southbound bridge with improved active transport facilities.

Why not build 4 lanes?

The design will allow for future conversion from 3 to 4 lanes through narrowing of the shoulders, reducing lane widths and re-line marking. Before converting to four lanes, a review of the whole corridor would be required to ensure speed limits, safely and merging capacity is adequate.

What provision is being made for public transport or transit lanes?

The Centenary Bridge Upgrade will allow for increased capacity and traffic flow by providing 3 lanes in each direction over the Brisbane River. This will provide increased efficiency for public transport such as buses travelling on the Centenary Bridge. There is no dedicated transit lane included in the design.

Isn’t this just moving the traffic congestion further along? Why not widen the motorway?

The Centenary Bridge Upgrade is the first stage to progress from the Department of Transport and Main Roads’ (TMR’s) planning study for the Centenary Motorway Upgrade from Sumners Road, Darra to Frederick Street, Toowong.

The planning study investigated the option of providing 6 lanes on the existing alignment of the Centenary Motorway.

The bridge was identified as the most critical section. Progress on all other future stages of the Centenary Motorway Upgrade project is dependent on funding and would need to compete against other state-wide priorities.

Are there any changes to the Sinnamon Road traffic lights and entry ramp?

The existing traffic lights at the Sinnamon Road entry ramp will remain, there may be minor alterations to accommodate access for service vehicles into the road reserve adjacent to the new bridge. The entry ramp will be extended leading on to the new bridge to allow for longer and safer merging. The existing shared path leading up to the traffic lights, from the river, will be upgraded as part of the project. However, the intersection is not included within the current bridge upgrade project.

Why are there no face-to-face community information sessions being scheduled?

In response to the COVID-19 public health crisis, the Queensland Government has endorsed safety measures, including social distancing and limiting non-essential face-to-face contact. This has meant that planned community information sessions and face-to-face meetings are unable to take place. However, there are a variety of ways that we will be able to provide further information, listen to community feedback and answer any questions about the proposed project scope and design. This includes online meetings and information sessions with individuals and small groups, as well as the ability for community members to provide their feedback via telephone, email or post.


What are the benefits of upgrading the Centenary Bridge?

  • Increased capacity and improved safety and efficiency to improve travel-time reliability.
  • Improved safety by reducing the frequency and severity of crashes on the Centenary Bridge.
  • Improved active transport facilities and connections to existing infrastructure.
  • Longer and safer merge lanes for entry and exit ramps.


Will properties be impacted, or access arrangements change under the current design?

TMR will consult directly with any landowners potentially affected by the proposed Centenary Bridge Upgrade Project during construction. Until a contract for construction has been awarded, construction methodology and impacts are unknown at this time.

Are there any land resumptions related to this project?

There are no further land resumptions envisaged for the Centenary Bridge Upgrade project.

For further information or official confirmation of land requirements of specific properties a Property Search Certificate can be obtained. Please visit the TMR Property Searches page for more information.

Impacts on the adjacent skate park and playground

The works have been designed to avoid infrastructure in the park, including the skate park and existing playground. The alignment of the shared path has yet to be finalised and TMR has been working closely with Brisbane City Council (BCC) to minimise impacts on trees and other structures in the park, including the toilet block and the gazebo. TMR will continue to update the community on impacts and changes.

There are no proposed land resumptions of Amazons Place Park or the Jindalee Skate Park. Upgrading the existing skate park structures is also not in the scope of the project. New bike and shared paths will be constructed, in the park, to connect to upgraded active transport facilities on the bridge. These new assets will be handed back to BCC upon completion of the project.

Is this part of the Kenmore Bypass project?

No, the Centenary Bridge Upgrade is a separate project. Transport and Main Roads (TMR) undertook a planning study in 2008/09 to assess the feasibility for a potential connection from the Centenary Motorway to Moggill Road, known as Kenmore Bypass, and to consider options for development of the corridor.

The preferred planning option for Kenmore Bypass was released to the community in October 2009.

Will the existing carpark, inbound in Pioneer Belz Park, remain?

No. The existing carpark falls within the footprint of the proposed new bridge and will be removed during construction. It is not possible to reinstate a carpark in this location, as access in and out of the carpark onto the motorway is not safe.


Have you undertaken any noise monitoring?

Yes, a detailed road traffic noise assessment has been completed in accordance with the Department of Transport and Main Roads’ (TMR) Transport Noise Management: Code of Practice – November 2013. The Code of Practice provides guidelines for assessing and managing road traffic noise and determining the requirements, if any, for possible noise-reducing treatments.

This assessment included monitoring of the surrounding residential and commercial areas and both current and future predicted motorway noise impacts will be modelled. A post construction noise assessment will also be completed to confirm predictions.

Will you be building any noise barriers as part of the project?

Yes, any impacted existing noise barrier will be either re-instated or noise reducing treatment will be undertaken as per recommendation of the noise assessment report.

Will you be building any noise barriers across the bridge between the motorway and the shared path?

Noise barriers between the road and the bike path along the bridge itself will not be installed. A higher solid wall or barrier separating the roadway from the cycle path raises a safety concerns for people riding bikes and walking. Should an incident occur, resulting in a cyclist coming off their bike or a person being hit, the extended barrier would obscure visibility and delay emergency response.

Throughout the length of the project, the design provides a shoulder and increased lane widths for general traffic lanes and active transport. All of this will significantly improve the physical separation between people walking and riding bikes, and the motorway traffic. For example: separation will vary from 4 to 8 metres in the finished design as compared to 1.5 – 2.5 metres on the existing bridge.

Diagram of noise barriers

Funding and award of the construction contract

Has funding been confirmed?

Construction funding of $224 million was announced in October 2020 by the federal and state governments on a 50:50 basis. This funding is in addition to a previous $20 million committed by the Queensland Government for a business case, investigations and detailed design.

When will tenders be released/awarded for this project?

Expression of interest period was announced May 2021 and closed 10 June 2021. Information was published on the QTenders webpage.  The contract for construction is expected to be awarded late 2021.

Project timeframes

What is the construction timeframe for the bridge upgrade?

Construction is expected to commence 2022, subject to final construction conditions and approvals.

How long will construction take?

Construction of the Centenary Bridge Upgrade is currently planned to take around 4 years to complete (weather and construction conditions permitting).


Have environmental assessments been undertaken?

TMR completed an environmental assessment report and Environmental Management Plan (EMP) in 2018, with no major issues identified. TMR environmental officers will complete regular impact assessments to oversee the implementation of the EMP during any pre-construction activities to ensure it engages interested stakeholders and fully complies with the department’s legislative obligations and environmental best practice.

The project team is working alongside BCC Environmental Officers to minimise impacts on the local area including tree removal, clearing and riverbank disturbances. Once construction impacts are known, TMR will also consult with the local catchment association and community environmental group.

Traffic management

Will any proposed pre-construction activities impact traffic?

Should pre-construction activities be undertaken, it is likely that these will be in road reserve and not within traffic lanes, however check the QLDTraffic website before starting your journey to keep up-to-date or subscribe to TMR’s QLDTraffic app.

Variable message signs (VMS) will also display important information about any work being undertaken within the project corridor. For up-to-date project information and to subscribe to project updates, visit the project website and click on the subscribe link.

Will the speed be reduced during construction?

For safety of motorists and workers and given the constrained corridor and proximity of the construction activities to the travelling public, lane widths and speed limits will be reduced throughout the project area. Motorists are asked to be cognisant of changed conditions and to obey reduced speed limits.

Service Relocations

Do you know where the existing services are in the corridor?

There are numerous services both above and below ground along the Centenary Motorway, including telecommunications, water, sewerage and electricity that will require relocation.

Who decides which services are relocated?

The Department of Transport and Main Roads (TMR) collaborates with the relevant service authority to determine what services need to be relocated to enable upgrades to the road.

Relocation methods differ from service to service, but they are usually relocated if they cannot be protected or will become difficult to access or maintain in the future. Specifically, QUU, Telstra and Energex assets will be relocated for this project.

NOTE: Additional information IF required. Telstra and other communication assets are being relocated to the new bridge (temporarily relocated to upstream verge of old bridge during construction) and QUU assets on the old bridge are being decommissioned. Energex relocations are mostly about street lighting.

Project contacts

To find out more about the Centenary Bridge Upgrade Project, please contact the project team by phone, email or post.

Phone: 07 3066 4338 (during business hours)
Web: Centenary Bridge
Post: Centenary Motorway Upgrade project team
 Metropolitan Region
         Department of Transport and Main Roads
         PO Box 70, Spring Hill, Queensland 4004