The first concrete girder has been installed for the Youngs Crossing bridge in Joyner, bringing the new flood-resilient route into view for the thousands of motorists who use the corridor each day.
It is the first of 83 precast girders that will form the base of the bridge deck above the North Pine River and Sideling Creek.
More than 20,000 vehicles travel along Youngs Crossing Road each day. The existing crossing is affected by flooding, which can lead to road closures, surrounding congestion, delays and diversions.
The new crossing is intended to provide a more reliable route for residents, businesses and emergency services during severe weather.
Youngs Crossing Bridge Emerges Above the River
The girders measure up to 27 metres long and are made away from the construction site before being transported to Joyner on oversized trucks.
Deliveries will take place intermittently over five weeks, depending on weather and construction conditions. Each girder will travel at night under pilot and police escort before being lifted into position by crane during the day.
The delivery route follows Dayboro Road through Old Petrie Town. Transport has been scheduled during off-peak periods to reduce traffic impacts, with nearby residents to receive information closer to planned movements.
As more girders are installed, the deck of the approximately 200-metre bridge will continue to take form across the waterways.
New Route Planned West of Existing Crossing
The four-lane bridge is being built west of the current Youngs Crossing Road crossing as part of an upgrade extending more than one kilometre between Protheroe Road and Dayboro Road.
Three new signalised intersections are included, along with improved pedestrian and active transport connections.
Construction is approaching the halfway point, with the project scheduled for completion in late 2027. The remaining timeline is indicative and may change.
Motorists may encounter delays while work continues. A temporary 40-kilometre-per-hour speed limit is in place along Youngs Crossing Road, while electronic signs are being used to provide updates through the construction corridor.
Public access to Youngs Crossing Park and the waterhole remains unavailable while the new road and bridge are built.
Seymour Whyte is the principal contractor working with the City of Moreton Bay on the upgrade. The Australian Government has committed $51.6 million, while the City is contributing the remaining delivery cost. The Queensland Government has provided another $15 million for intersection upgrades at Dayboro Road.
The remaining girders will be transported and installed during the five-week delivery program, subject to weather and construction conditions.
Published 30-July-2026
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