The new extradosed bridge will replace the existing bridge which was built in 1939. Image: WA Government.
Construction on one of Fremantle’s largest ever infrastructure projects has commenced, with the replacement of the current Fremantle Traffic Bridge over the Swan River now underway.
The new $430 million extradosed bridge is jointly and equally funded by the Federal and State governments, and will feature two lanes in each direction, wider active transport paths, a higher clearance for watercraft, and improved road ties into Queen Victoria Street on the north side, and the Canning Highway intersection on the southern side.
The new bridge’s unique extradosed design incorporates both cantilevers and cable support. It will replace the ageing timber frame bridge which was opened as a temporary structure in 1939 and which has required significant investment to maintain its structural integrity.
The construction begins after a drawn out period of consultation, with the final design of the bridge being released in November 2023. Construction will be conducted in a phased approach which will allow the old bridge to remain operational until late 2025, minimising disruption to the public.
The first work to be conducted will be the construction of four temporary jetties to provide a platform for four large cranes that will install the bridge piles and construct the edge beams. The jetties will remain in place for the duration of the project.
Due to the unique geology of the site, construction of the temporary jetties and the bridge piers require significant piling works which will continue intermittently for about 12 months.
The shared path on the current bridge will close during piling works with pedestrians and cyclists detoured via Stirling Traffic Bridge Monday to Saturday between 7 am and 7 pm.
Restricted areas will be implemented from the works site to the east of Stirling Bridge, meaning swimmers, snorkellers and divers, and passive craft users such as kayaks and standup paddle boards will not be allowed in the area during piling works due to underwater noise.
Federal Infrastructure, Transport, Regional Development and Local Government Minister Catherine King said the design had significant community support following an extensive consultation period and would deliver a spectacular gateway into Fremantle.
“Once complete, it will be Australia’s only extradosed bridge – a unique design, with extensive benefits for the community including more access for cyclists and pedestrians as well as those enjoying their day on the water,” she said.
“I thank the community for its ongoing patience and support during construction and welcome the innovative delivery staging that allows much of the new bridge structure to be completed with as little traffic disruption as possible.”
WA Transport Minister Rita Saffioti said it was fantastic to see construction of the Swan River Crossings Project get underway.
“This new bridge will deliver an iconic entry statement into Fremantle, providing a safer crossing for all road users, improved paths for cyclists and pedestrians and better navigational safety for river users,” she said.
“The construction methodology being used will ensure we’re able to keep the current bridge open for as long as possible, minimising the amount of time the crossing is closed.
“While there will be some noise and disruption, particularly during piling works, the project team will work hard to manage the impacts on the community as far as possible.”
