The southern terminus of the Bradfield Highway is at the northeastern end of the Western Distributor in the Sydney central business district and crosses the Sydney Harbour Bridge, with its northern terminus at the Warringah Freeway in North Sydney, north of the Pacific Highway exit at the Mount Street ramp. Prior to the construction of the Warringah Freeway in 1968, all traffic at the northern terminus of the Bradfield Highway was directed to or from the Pacific Highway, via North Sydney.