carries the Princes Highway though Geelong. Construction started in 1988 and was completed in September 1990, removing heavy through traffic from the main Belmont shopping centre. Consisting of twin parallel two lane bridges, The main river span is of concrete cantilever design, with a number of smaller concrete box girder spans completing the viaduct to the south. The bridge was named after Geelong engineer and refrigeration pioneer James Harrison. Temporary Barwon Bridge While the Barwon Bridge at Moorabool Street was being rebuilt in the mid 1920s, to allow for the extension of the tram system to Belmont, a temporary wooden bridge was provided as an alternative. It linked the end of Latrobe Terrace on the northern bank with Barrabool Road on the southern bank. Barwon Bridge The four-lane Barwon Bridge carries Moorabool Street over the river, and is located on the site of the first Barwon crossing. The first wooden bridge opened early in 1848. Tolled by the South Barwon council, it was swept away in a flood four years later, on 23 May 1852. From December that year a government punt operated at the site. By late 1853, two government punts were used to form a pontoon bridge. It was not until 1859 that a proper iron bridge was opened as a replacement. That bridge was only two lanes wide and was considered too narrow to permit the extension of trams into Belmont, so it was closed and dismantled in 1924. The new bridge was designed by Country Roads Board engineer Donald Darwin and was opened on 18 August 1926 by Governor of Victoria, Lord Somers. Of concrete and steel girder construction, it was built by Armstrong Whitworth and cost A£ (A$). In 1966, the bridge was widened to four lanes by extending each side of the deck. Breakwater road and rail bridges The original Breakwater Bridge was a ford running on top of the breakwater. A timber trestle railway bridge was built over the top in 1876 when the Geelong railway line was extended to Winchelsea. That bridge was replaced by a concrete and steel girder bridge in the 1960s, although the remains of the wooden supports of the former bridge are still visible. The current low-level road causeway was built by the Country Roads Board in the mid 1960s. The causeway has a restricted clearance underneath the railway bridge, and is only about a metre (3 ft)