Rock throwing on the Southern Expressway is reaching crisis levels in our state after the 37th incident was reported to police this morning.
An action group has started on Facebook to keep a closer eye on the bridges, days after steel mesh and more security cameras were being installed.
Some have reported taking to other roads like Main South Road rather than take their chances on the expressway.
Six people including three teens have been arrested for throwing rocks.
Police have increased patrols along the motorway this month, as part of 'Operation Watercolour'.