| Bridge Name: | Birkenhead Bridge |
| Carries: | Nelson Street |
| Crosses: | Port River |
| Locale: | Lefevre Peninsula |
| Owner: | Department of Planning, Transport & Infrastructure |
| Preceded: | Tom 'Diver' Derrick Bridge |
| Followed: | Jervois Bridge |
| Design: | Bascule |
| Length: | 246 metres |
| Width: | 16 metres |
| Clearance: | 5.4 metres |
| Lanes: | 4 (as built) 2 (since 2014) |
| Builder: | Adelaide Construction |
| Fabricator: | Perry Engineering |
| Open: | 14 December 1940 |
| Coordinates: | -34.8423°N 138.5009°W |
The Birkenhead Bridge is a bascule bridge in Adelaide, Australia that crosses the Port River.
In February 1938, the Government of South Australia awarded a contract to Adelaide Construction to build a bridge across the Port River from Birkenhead to Port Adelaide, with Perry Engineering contracted to supply the steelwork.[1] The bridge was opened on 14 December 1940 by Governor Malcolm Barclay-Harvey.[2] [3] It was one of only four bascule bridges in the world adapted for use by trolleybuses.[4]
In 2014, two of the four road lanes were converted into pedestrian and bike paths.[5] In 2020, the timber road deck has been replaced with fibre reinforced polymer and the timber footpath with aluminium.[6]
The bridge is listed on the South Australian Heritage Register.[7]