Lockyer Creek Railway Bridge (Lockyer)
| Lockyer Creek Railway Bridge (Lockyer) | |
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Lockyer Creek Railway Bridge at Lockyer
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| Location | Toowoomba - Helidon Line over Lockyer Creek at Lockyer, Lockyer Valley Region, Queensland, Australia |
| Coordinates | 27°31′05″S 152°05′19″E / 27.518°S 152.0885°ECoordinates: 27°31′05″S 152°05′19″E / 27.518°S 152.0885°E |
| Design period | 1900 - 1914 (early 20th century) |
| Built | 1909 - 1910 |
| Architect | William Pagan |
| Official name: Lockyer Creek Railway Bridge (Lockyer) | |
| Type | state heritage (built) |
| Designated | 21 October 1992 |
| Reference no. | 600513 |
| Significant period | 1900s (fabric) |
| Significant components | abutments - railway bridge, pier/s (bridge) |
 Location of Lockyer Creek Railway Bridge (Lockyer) in Queensland
Location of Lockyer Creek Railway Bridge (Lockyer) in Queensland
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Lockyer Creek Railway Bridge (Lockyer) is a heritage-listed railway bridge on the Toowoomba - Helidon railway line over Lockyer Creek at Lockyer, Lockyer Valley Region, Queensland, Australia. It was designed by William Pagan and built from 1909 to 1910. It was added to the Queensland Heritage Register on 21 October 1992.
This bridge was built in 1910 as part of the Brisbane–Toowoomba railway and was one of three railway bridges constructed over Lockyer Creek.
The railway opened for traffic between Helidon and Toowoomba on 1 May 1867. From the 1870s there has been a continuing process of improving the Main Line between Brisbane and Toowoomba because of its importance as a major arterial route. As part of that process, which required the replacement of original bridges to carry heavier loads, construction work began in 1908 on a new bridge and deviation over the Lockyer Creek tributary at 75m 48c. The design for the innovative reinforced concrete arch bridge was completed and signed by Chief Engineer, William Pagan on 2 February 1909. The bridge and deviation were completed and brought into use on 18 July 1910.
The use of concrete arches for railway bridges is a distinctive feature in Queensland and South Australia. The first concrete bridge in Queensland was constructed at Petrie Terrace in 1897. Between 1900 and 1913, six arch concrete railway bridges were constructed in Queensland approximating with the term in office of William Pagan as Chief Engineer of Railways and it is believed that he was responsible for their design. The first two, at Rangeview, near Toowoomba and at Deep Creek, Chowey, followed the form of a stone arch bridge. Later bridges were more innovative in design and this bridge was the second reinforced concrete arch rail bridge in Australia, following the 1906 bridge built at Steep Rocky Creek near Gayndah. The Lockyer bridge has a single main span of 27.4 metres, about the same as the maximum span of Lockyer Creek, which was the third largest span of Australian arch bridges built at the time of construction.
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