Canning Bridge is a traffic bridge which is the most downstream crossing of the Canning River in the city of Perth, Western Australia. The bridge is a part of Canning Highway, and it connects the suburbs of Como and Applecross. The Canning River is approximately 100 metres (328 ft) wide at the crossing, the narrowest point of the river along its downstream stretch. It is located near the Canning Bridge railway station.
There have been four different structures at the present site.
The first bridge was designed in 1846 by Henry Trigg, then Superintendent of Public Works. The bridge as designed was 520 feet (175 m) long and 12 feet (4 m) wide. It had a central span of 24 feet (8 m), and its deck sat just 8 feet (2 m) above the river water.
Construction on the bridge was not commenced until 1849 because the original tenders were too costly. The bridge was built by Solomon Cook, costing £425. The bridge served as a vital traffic link between Fremantle, Perth and Guildford.
Flooding in the Swan and Canning Rivers in 1862 damaged the Canning and Helena Bridges, as well as The Causeway. As a result, a new Canning Bridge was built in 1867 by convicts. This second bridge had a clearance of 12 feet (4 m) above the river water; the bridge deck was raised to have a clearance of 18 feet (6 m) in 1892.
Due to poor maintenance, the second bridge slowly deteriorated. A fire damaged the structure, and since the road served as a critical traffic link, funding was provided for a new bridge in 1907 and 1908. The new bridge was built in 1908 at a cost of £2,023, and was a sturdier construction. It was located south east of the present bridge.
During the Great Depression, between 1930 and 1933, bushland on the eastern bank of the Canning River at Canning Bridge hosted many homeless families in bushland camps.