Bolte Bridge, Cantilever road bridge in Docklands, Australia

Bolte Bridge is a twin cantilever road bridge over the Yarra River and Victoria Harbour in Melbourne, carrying eight lanes of the CityLink tollway between the Tullamarine and West Gate freeways. Its superstructure consists of two independent prestressed concrete box girders of variable depth, separated by a 1.15-metre gap. At mid-span, two hollow grey concrete towers rise 140 metres each on either side of the roadway; they are aesthetic additions not joined to the bridge deck.

Planning for this crossing began in the early 1990s to ease congestion between Melbourne's northern and western suburbs. Construction started in 1996 following designs by the architectural firm Denton Corker Marshall and opened to public traffic in August 1999.

The bridge honors Sir Henry Bolte, Premier of Victoria, who held office longer than any of his predecessors or successors. His tenure shaped the state's politics over several decades and his name became linked to this structure as a reminder of his role in modernizing infrastructure.

The bridge carries eight lanes of the Melbourne CityLink toll road, four in each direction, and cyclists and pedestrians are not permitted on it. It forms part of a five-kilometre elevated roadway between Flemington Road and the West Gate Freeway, with approaches beginning in Port Melbourne and ending north of Docklands.

The two tall towers beside the roadway carry no load from the bridge structure and serve solely to shape the skyline. Their form was developed to create a visual link between the harbor district and the rest of the city without fulfilling any technical function for the actual crossing.