Significance
Criterion AThe place is important in demonstrating the evolution or pattern of Queensland’s history.
This concrete arch bridge has the third longest span of its type in Queensland and was the third bridge of its type to be constructed in Australia. The bridge frames the rocky valley of the creek and its innovative design was associated with the Chief Engineer, William Pagan.
Criterion BThe place demonstrates rare, uncommon or endangered aspects of Queensland’s cultural heritage.
This concrete arch bridge has the third longest span of its type in Queensland and was the third bridge of its type to be constructed in Australia.
Criterion FThe place is important in demonstrating a high degree of creative or technical achievement at a particular period.
The bridge frames the rocky valley of the creek and its innovative design was associated with the Chief Engineer, William Pagan.
Criterion HThe place has a special association with the life or work of a particular person, group or organisation of importance in Queensland’s history.
The bridge frames the rocky valley of the creek and its innovative design was associated with the Chief Engineer, William Pagan.
History
The Mungar - Gayndah Branch was built only as far as Degilbo before the financial depression of the early 1890s halted the rail construction program. Construction resumed in 1905 under the Railway Department's day labour program. William Pagan was Chief Engineer at the time. Construction began on the Degilbo to Wetheron extension in February 1905. William Pagan inspected the extent of the construction and preparatory work on the Deep Creek bridge in March 1905. The bridge was completed and the line opened by 21 December 1905. Pagan described the bridge in his annual report for that year as "a concrete bridge of somewhat novel design".
The bridge represented a substantial development in concrete arch bridge design. It followed the 33 foot spans used in Swansons Bridge on the Main Line near Toowoomba and the 47 foot span at Petrie Terrace road overbridge. It was followed by two substantial concrete arch bridges on the Main Line near Lockyer.
Description
Deep Creek bridge is a concrete viaduct with an 80 foot (24.4m) concrete arch flanked by two smaller 15 foot (4.6m) arches, with the track run on sleepers and ballast in a trough. It has the date of construction, 1905, cast into the sides.
- Embankment.
- 1x15 foot (4.6m) concrete arch, ballasted top, concrete abutment, common concrete abutment.
- 1x80 foot (24.4m) concrete arch with 4x15 foot (4.6m) spandrel arches, ballasted top, common concrete abutments.
- 1x15 foot (4.6m) concrete arch, ballasted top, concrete abutments, common concrete abutment.
