Improvements on Galston Road, Hornsby Heights to Galston

Roads and Maritime Services is improving Galston Road to improve safety and maintain efficiency on the state road network.

Galston Gorge, Hornsby Heights, Galston
Galston Gorge, Hornsby Heights, Galston

Updates and announcements

We are continuing to work on both sides of Galston Gorge. For more information please see the July 2017 project update (PDF, 96Kb).


Galston Road is a strategic road corridor linking Hornsby, Galston and the North West Sydney suburbs. The road provides a direct link for vehicles travelling on the Pacific Highway north of Sydney to the western suburbs bypassing the highly-congested Pennant Hills Road corridor.

Galston Road passes through Galston Gorge which is notorious for its steep inclines and multiple hairpin bends. Because of this vehicles that are 7.5 metres in length or more are prohibited from entering Galston Gorge and considered overlength. This includes most cars with trailers, boats or horse floats.

Drivers of overlength vehicles are often deciding or are directed (by Satellite Navigation Systems) to use this corridor as a more direct route.

An increasing number of incidents over the past few years have resulted in Roads and Maritime Services implementing several measures to improve safety on Galston Road and deter overlength vehicles from entering the Gorge.

Multiple signs have been installed on both sides of the Gorge along with a vehicle detection system and vehicle activated variable message signs (VMS).

These measures have had limited impact on lowering the number of overlength vehicles using the corridor, due to the direct nature of the corridor and the heavily congested Pennant Hills Road.

Additional improvements are being implemented for both sides of Galston Gorge. This will build on previous work to improve the road for motorists and the community.

Key features

The key features of the project include:

  • Improving and supplementing the existing infrastructure at both ends of Galston Gorge to install a camera based detection system
  • Improve turning options on the eastern side of the Gorge, between Ryan Trail and Evans Road
  • Slope and drain improvements on Galston Road between Calderwood Road and Berowra Creek
  • Safety improvements at the bend of Galston Road, starting 150 metres west of Montview Parade.


The key benefits to the community include:

  • Minimise the number of overlength vehicles entering the Gorge and getting stuck
  • Improve turning options for overlength vehicles
  • Minimising closures of the Gorge while stuck overlength vehicles are cleare
  • Improved safety for all road users on the approach to Galston Gorge in Hornsby Heights.

Next steps

We will be on site on both sides of Galston Gorge between Monday 10 July and Friday 11 August to continue delivering this work.
For more information about this work please see the July 2017 project update.

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