Trams in Sydney Milsons Point wharf and connecting tramway. Services to Lane Cove and Chatswood were altered to operate to and from McMahons Point via the new direct route to Crows Nest. In conjunction with the construction of the Sydney Harbour Bridge, the Milsons Point line was diverted to a new terminus in Glen Street in July 1924. Escalators were provided to carry tram passengers to the new ferry wharf below. Otherwise, services operated as during the first period. In March 1932 the Sydney Harbour Bridge with its associated railway and tramway tracks was opened and all of the above services to and
Sydney Harbour Bridge build a tunnel to complement the bridge. It was determined that the bridge could no longer support the increased traffic flow of the 1980s. The Sydney Harbour Tunnel was completed in August 1992 and carries only motor vehicles. The Bradfield Highway is designated as a Travelling Stock Route which means that it is permissible to herd livestock across the bridge, but only between midnight and dawn, and after giving notice of intention to do so. In practice, owing to the high-density urban nature of modern Sydney, and the relocation of abattoirs and markets, this has not taken place for approximately