Tully Timber Bridge Replacement
SectorTransport, Urban
ClientLogan City Council
DurationMay 2023 to August 2023
Contract Value$1.7M

Logan City Council awarded McIlwain the Tully Timber Bridge Replacement project over Oxley Creek in 2023. The project involves upgrading the current deteriorating timber bridge from a single lane to a two-lane, reinforced concrete box culvert bridge. 

Tully Timber Bridge crosses Oxley Creek and is located on Tully Road. The current bridge has a 22 tonne load limit, which impacts on the commercial, industrial, and emergency vehicle movemements. The upgraded bridge will remove this impediment. Tully Road is often inundated by water during heavy rain events and has a current flood immunity of less than 1 year. The Tully Timber Bridge Replacement will provide better flood protection for the road corridor. Additionally, a permanent passageway will be installed to assist the migration of native fish during seasonal flows in Oxley Creek. The completed project will provide a safer bridge and connection for motorists and will allow for the upgrade of the load limit improving the capacity of the bridge.
Project Synopsis
Demolition of the existing one-lane timber bridge 
Construction of a new two-lane, reinforced concrete box culvert bridge 
Installation of bridge drainage
Installation of kerb
Installation of channel
Installation of guardrail
Asphalting surfaces on the bridge deck, gravel approaches and shoulder
Installing a permanent passageway to assist the migration of native fish during seasonal flows in Oxley Creek 
Restoration activities 

Project benefits
Provide better flood protection for the road corridor 
A safer bridge and connection for motorists
Improved capacity allowing removal of load limit


Coomera Connector Stage 1 Central

Transport, Urban

Department of Transport and Main Roads

Helensvale to Molendinar


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