Released 10/09/2025
The ACT Government is delivering roads and associated infrastructure upgrades to improve access in and around the Molonglo Valley, to keep Canberra moving as we grow.
The construction of the new Molonglo River Bridge and completion of John Gorton Drive will transform the Molonglo region and better connect the suburbs of Molonglo including Denman Prospect and Whitlam to the rest of Canberra.
As part of the construction of the Molonglo River Bridge project, Coppins Crossing Road between Holborow Avenue and Hazel Hawke Avenue will be closed on the following dates:
- From 9:30am Friday 26 September to 3pm Monday 29 September, with a contingency day of Tuesday 30 September (off peak), if needed
- From 6am Tuesday 7 October to 6pm Sunday 12 October.
If further closures are needed, details will be updated on www.act.gov.au/builtforcbr/travel-impacts.
During the closures, precast deck slabs will be placed on the bridge structure over Coppins Crossing Road to construct the bridge deck. Precast deck slabs are made from concrete and will sit on the girders to form the base of the bridge surface.
These closures ensure the safety of road users, the public, and other personnel who will be present on and around the project site.
During all closures, motorists are encouraged to avoid travel during peak periods, when possible, and where travel must occur, plan ahead and leave extra time for your journey.
Detours for the closures are as follows:
- Southbound from Belconnen: From William Hovell Drive, take the off ramp to Parkes Way and merge onto Tuggeranong Parkway.
- Northbound from Molonglo Valley: From John Gorton Drive, turn onto Cotter Road then follow the ramp onto Tuggeranong Parkway, and take the left exit at Glenloch interchange to merge onto William Hovell Drive.
The ACT Government has worked to minimise the disruption for all road users by scheduling these closures over a weekend and during the Spring school holidays.
Further work requiring the full closure and off-peak closure of Coppins Crossing Road is planned from November 2025 to March 2026. These dates are yet to be confirmed but will include the following works:
- Further deck pours –
Pouring concrete to form the surface of the Molonglo River Bridge. - Precast parapet installation – safety barriers to be placed on the northbound and southbound bridge structures.
- Twin rails and throw screen barriers – rails separating the northbound and southbound bridge structure, screens to stop objects being thrown from the bridge.
Future updates will be provided on the Build for CBR website. We thank the community for their patience, as we work to keep Canberrans, and project workers safe on-site during construction.
For details of changes to public transport during the closure, please refer to details on the Transport Canberra website at https://www.transport.act.gov.au
About the project
The Molonglo River Bridge project is constructing a 200-metre-long bridge across the Molonglo Nature Reserve and river, as well as 1.7 kilometres of new arterial roads leading to the bridge and two new intersections.
The new bridge, roads and intersections will provide access to the future Molonglo Town Centre from the suburb of Whitlam and future northern Molonglo Valley suburbs.
The works include important active travel links with off-road shared paths and a pedestrian underpass to encourage more Canberrans to ride or walk to get to their destination.
This project is jointly funded by the Australian and ACT Governments as part of the Commonwealth's Infrastructure Investment Program.
To stay up to date on the impacts, visit www.act.gov.au/builtforcbr/travel-impacts
- Statement ends -
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