Mahon Bridge replacement to kick off in January 2025

Works to replace Mahon Bridge at Carpendale have been rescheduled to January 2025.

Originally slated to get underway later this year, Lockyer Valley Regional Council has delayed the works to reduce the overall time the bridge and Carpendale Road are closed due to the contractor’s Christmas shutdown.

Infrastructure Portfolio Councillor Michael Hagan said the decision was made to decrease the level of disruption and inconvenience to road users and residents, adding the finish date should not be altered as a result.

“The replacement of Mahon Bridge is expected to take about six months to complete, weather permitting,” he said.

“If the weather is favourable, this delay is not expected to change the completion date of the project, which is scheduled for mid-next year, as the overall project had included long lead times.”

Constructed in 2009 and damaged in the 2013 floods, the existing bridge has been subject to a one-lane traffic arrangement and 42.5-tonne load limit to mitigate the risks.

Cr Hagan said the $6.88M project would involve demolishing the old bridge and constructing a new two-lane concrete bridge of around 40 metres.

“Significantly, the new bridge will improve the road alignment and increase the load limit and accessibility for heavy vehicles over the bridge for one of the region’s largest employers,” he said.

“It will also provide improved access to local businesses and residents.”

During the demolition and construction phase, a full closure of Carpendale Road is required.

Cr Hagan said residents and businesses in the vicinity of the bridge have been notified.

“Council acknowledges the construction of the new bridge will cause additional noise and traffic, especially along the detour route, and we ask the community for its patience and understanding during the construction process,” he said.

“Once the new bridge is operational, the number of heavy vehicles travelling the alternative routes will be slashed, which is a major long-term benefit.”
The project is made possible after Council applied for funding under the Australian Government’s former Bridges Renewal Program, now the Safer Local Roads and Infrastructure program.

The Australian Government is contributing $4,994,387 in funding through the SLRIP, with Council contributing the remaining $1,894,423.