Series Details

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Series ID18136
Previous System LocationP7/138; P7/302 - P7/357; PRV15033
TitleIndooroopilly Railway Bridge Plans
Parent Series
This series does not have a parent series.
Start Date Circa 1/1/1951
End Date Circa 31/12/1955
Date Statement N/A
Date Notes N/A
Abstract

Co-ordinator General's Department project

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Items Total Items: 57
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Departmental NumbersN/A
System of Arrangement Numerical by plan number
How To Use Series N/A
 

Creating Agencies

Agency IDTitleFromTo
633Coordinator-General's Office N/A N/A
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Access and Restrictions

Access Category0 Years
Access Procedure 
Agency Now Responsible
Agency ID: 11655
Department of State Development (III)
Restriction DetailsN/A
Regulation Details
N/A
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Description

This series comprises blueprint plans of the Indooroopilly Railway Bridge, which was constructed across the Brisbane River at Indooroopilly, immediately upstream of the older Albert Bridge, between 1955 - 1957. The bridge was designed by the Co-Ordinator-General's Department and constructed by Electric Power Transmission Pty Coy, the steelwork for the superstructure - except for bearings and 60 tons of deck steelwork - being fabricated by the Societa Anonima Elettrificazione S.P.A. of Milau, Italy.

The bridge is 208.5 metres long and the superstructure was designed as a two-span parallel chord Warren Truss with verticals, continuous over the two spans. The central pier caisson was constructed in the Cairnscross Dry Dock, 21 kilometres downstream of the bridge site. It was towed into place by two tugs and, after seating on the river bed 15 metres below water level, was sunk by open dredging to rock 22 metres below high water. Excavation to sound, unweathered schist was achieved under compressed air using airlocks. The truss superstructure, which had been fabricated in Italy, was erected on rollers in an erection bay constructed on the north side of the river. Gradually the span was rolled out over the river, adding further bays on the back end of the truss, until the cantilever end of the truss could be picked up on a trestle constructed on the hulk of a 700 tonne cargo vessel the S.S.. "Alagna". The span, with its leading end now supported on the ship, was pushed out until the truss could be landed on the control pier and the northern end on the abutment bearings. The second span was then built by cantilevering out from the span just erected, until the Chelmer (southern) abutment was reached.
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Preferred Citation

Queensland State Archives Series ID 18136, Indooroopilly Railway Bridge Plans
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Last updated 9 September 2016
Creative Commons Attribution 3.0 Australia (CC BY 3.0) ( http://creativecommons.org/licenses/by/3.0/au/ )
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