Project update: April 8, 2026
The recent engineering inspections for St Helens Creek Bridge, Figtree Bridge, Pig Creek Bridge and Omega Creek Bridge on Calen-Mount Charlton Road, Mount Charlton have identified that replacement of the four bridges is required.
As a result, there will be changes to the traffic conditions and load limits implemented on each bridge to maintain safety and useability for the community while new bridge designs are completed.
A load limit of five (5) tonnes at a reduced speed limit of 40km/hr is to remain in place for all vehicles on St Helens Creek Bridge, Fig Tree Bridge, Pig Creek Bridge and Omega Creek Bridge.
Larger road vehicles including agricultural equipment, trucks, trailers, floats and caravans may be heavier than the new load limits. We encourage all road users travelling on Calen-Mount Charlton Road to investigate the weight of their vehicles prior to travel and seek alternate routes where required.
For the safety of all road users, please adhere to the instructions of all roadside signage, as restrictions and conditions may change over time.

Council will undertake detailed design work for each of the four bridges, with construction scheduled to begin as soon as practicable. As the bridges are located on the same road, construction will need to occur sequentially to ensure traffic can continue to operate safely and to maintain access for properties situated between the affected bridges. Several approval processes, gateway checks and reviews are required before construction can begin. We will provide further updates to the community once a clearer timeline is established.
All bridges will continue to be monitored regularly until construction begins to ensure community safety.
If you have concerns about property access as a result of the changes, please contact council’s Community Engagement team on 1300 MACKAY (622 529) or email engagement@mackay.qld.gov.au to discuss.
Council appreciates your patience while the bridge designs are completed and apologises for any inconvenience caused by these essential changes to the road conditions.