Investigation Works Continue on Mount Crosby Road Overpass

Investigation works at the Mount Crosby Road overpass are continuing, with night closures in place as crews assess how to safely repair damage from a May bridge strike.



Investigation Works Underway

The Department of Transport and Main Roads (TMR) began night works on 3 September 2025 to investigate the Mount Crosby Road overpass in North Tivoli. The works aim to determine the safest approach for removing and replacing girders damaged during a bridge strike on 16 May 2025.

Crews are cutting small inspection holes in the bridge deck and barriers to examine the components holding the girders. Works are scheduled to run for around three weeks, weather and site conditions permitting.

Traffic Changes for Motorists

Night works are taking place from 8:00 p.m. to 5:00 a.m., Monday to Saturday. During these hours, access across the Mount Crosby Road overpass is reduced to a single lane with reversible flow between 10:00 p.m. and 5:00 a.m.

From 8 September 2025, westbound traffic on the Warrego Highway will be reduced to one lane under traffic control between 10:00 p.m. and 5:00 a.m. Eastbound traffic will remain unaffected.

A speed limit of 20 kilometres per hour and a load restriction of 30 tonnes remain in place across the overpass until the damaged girders are replaced.

Kenmore road works
Photo Credit: TMR Qld/Facebook

Background on Bridge Strike

The restrictions follow an incident on 16 May 2025, when an oversize vehicle transporting a wind turbine section collided with the overpass. The bridge was closed immediately for structural assessment before reopening on 20 May 2025 under speed and load limits.

By early June 2025, TMR had reconfigured traffic flow to restore north-south access along Mount Crosby Road. Measures included single-lane operations, guardrail adjustments, and the removal of a footpath.

Future Repair Works

Full-scale removal and replacement of the damaged girders are expected to begin in late 2025 and continue for several months, depending on weather and site conditions.



TMR has confirmed the current works are being conducted at night to limit disruption to the community and local economy. Motorists are urged to remain alert near the site, follow traffic controller directions, and monitor QLDTraffic for real-time updates.

Published 4-Sep-2025

Southbound Lane Repairs Begin on Mount Crosby Road Overpass

Transport and Main Roads has commenced overnight works to restore southbound traffic on the Mount Crosby Road overpass at North Tivoli, following earlier structural damage.



Overpass Works Resume in North Tivoli

The Department of Transport and Main Roads (TMR) has started repair and reconfiguration works to reopen the southbound lane of the Mount Crosby Road overpass, which has remained closed since mid-May after a bridge strike. The night works began on 3 June and are expected to run for approximately four weeks.

Background of the Bridge Closure

The Mount Crosby Road overpass sustained damage on 16 May 2025 when an oversize vehicle struck the structure while travelling west along the Warrego Highway. The incident led to the closure of all lanes on the overpass while engineering inspections were carried out.

By 18 May, westbound lanes of the Warrego Highway were reopened. Two days later, on 20 May, the overpass was partially reopened, allowing northbound traffic under speed and weight restrictions. The southbound lane, however, remained closed pending further assessment and planning.

Mount Crosby Road
Caption: A photo of the incident on 16 May.
Photo Credit: TMR Qld/Facebook

Details of Current Works

TMR’s latest efforts involve modifying the existing road layout to accommodate southbound traffic. Works being carried out between 8 p.m. and 5 a.m. include the demolition of the western footpath, guardrail adjustments, road widening, and removal of electrical cabling.

To facilitate these works, the northbound lane of the overpass will be closed during active hours, with detours in place. Northbound vehicles are rerouted via Pine Mountain Road, while southbound traffic continues to use the River Road diversion. Load and speed restrictions will apply once the southbound lane is reopened.

Mount Crosby Road updates
Caption: A photo of the road update on 20 May.
Photo Credit: TMR Qld/Facebook

Community Impact and Next Steps



TMR acknowledged the inconvenience to residents in Karalee, Chuwar and Mount Crosby who rely on the overpass for travel into Ipswich. While full structural repairs to the damaged girders will follow, the current project aims to restore two-way vehicle movement on the overpass to improve access in the interim.

Published 5-June-2025