Great Western Highway reopens at Blackheath after car crash shut down

A horror crash between a car and motorcycles closed a major highway near Sydney, causing major delays and disruptions.

Traffic banked up along the Great Western Highway west of Sydney on Sunday after a horror smash between a car and motorcycles shut down both lanes.

Emergency services, traffic crews and a medical helicopter were dispatched to the site of the incident near Tennyson Rd on the outskirts of Blackheath.

The roads were closed just after midday.

Traffic cameras from the area show huge jams.

Traffic cameras from the area show cars lined up in a snaking traffic jam through the centre of the Blue Mountains town, about 120km northwest of Sydney.

Motorists have been advised to avoid the areas and use Bells Line of Road instead.

Blackheath is about 120km northwest of Sydney. Picture: Google Maps

Any drivers already in the area have been told to expected “significant delays” as traffic is very heavy in both directions.

The NSW LiveTraffic map shows congestion stretching from Mount Victoria down to Katoomba.

By 1.30pm, both of the lanes had been reopened.