Western Distributor is a 4.3-kilometre-long (2.7 mi) grade-separated motorway that is primarily elevated for the majority of its route on the western fringe of the Sydney central business district in New South Wales, Australia. It links the southern end of Bradfield Highway at the Sydney Harbour Bridge to Victoria Road in Rozelle, at its western terminus near White Bay. It is a constituent part of the A4 route.

The Anzac Bridge is an eight-lane cable-stayed bridge that carries the Western Distributor (A4) across Johnstons Bay between Pyrmont and Glebe Island, on the western fringe of the Sydney central business district, New South Wales, Australia. The bridge forms part of the road network leading from the central business district, the Sydney Harbour Bridge, and Cross City Tunnel to the Inner West and Northern Suburbs.