The Brooklyn Bridge is a local nickname for the Hawkesbury River Road Bridge, a concrete girder bridge that carries the Pacific Motorway (M1) across the Hawkesbury River between Kangaroo Point and Mooney Mooney Point, located 35 kilometres (22 mi) north of Sydney in New South Wales, Australia.

The bridge comprises a dual carriageway with three lanes in each direction of motorway grade-separated conditions.

This bridge was built to connect the sections of the Sydney-Newcastle Freeway immediately north and south of the Hawkesbury River.

Between 1968 and 1973 freeway traffic was required to rejoin the Pacific Highway in either direction and use the Peats Ferry Bridge (opened in 1945) to cross the river.

The three northbound lanes were opened to traffic in August 1973, and the resulting changes to traffic arrangements (whereby northbound traffic no longer had to join the Pacific Highway to use the adjoining Peats Ferry Bridge to cross the Hawkesbury then diverge to where the freeway recommenced north of the river) allowed the approaches at either end of the three southbound lanes to be completed in October 1973, to bring the full width of the bridge into use.