Boundary Street interchange

A grade separated interchange will be constructed at the northern end of Boundary Street, Cranley.

This involves constructing:

  • an on-ramp, enabling eastbound motorists to access the Toowoomba Second Range Crossing
  • an off-ramp, enabling motorists travelling west on the Toowoomba Second Range Crossing to exit onto Boundary Street
  • a two-lane bridge, taking Boundary Street over the Toowoomba Second Range Crossing.


Building the Boundary Street interchange

An approximately 600m long section of Boundary Street will be realigned to improve conditions for road users. Once constructed, traffic will be switched onto the new road and the section of existing road will be removed.

The Boundary Street interchange does not include access for eastbound motorists exiting the road bypass, or westbound motorists entering the road bypass. These movements can be made via interchanges at the Warrego Highway at Charlton and Mort Street at Cranley.

A temporary road will be built to the east of the realignment works, to maintain traffic access along Boundary Street during the road and bridge construction.
Traffic is expected to be permanently diverted onto the new section of Boundary Street in 2017, enabling construction to commence on the Toowoomba Second Range Crossing and the ramps.

Boundary Street Connection Road

Toowoomba Regional Council (TRC) is upgrading Boundary Street to connect with the realigned section of Boundary Street and improve access and conditions for heavy vehicles.

These works are planned to be completed in conjunction with the completion of the Toowoomba Second Range Crossing in 2018. Please refer to the TRC website for more information about the Boundary Street Connection Road.

Download the Boundary Street factsheet

Construction updates

There is a temporary closure of Boundary Street in effect during the construction of the Boundary Street bridge and the major earthworks stage for the interchange. A detour using Ganzer Road, Gowrie Junction Road and Morris Road is in place.

In November 2016, works commenced on the foundations and concrete piers for the bridge.