Michelago rail bridge over Ingalara Creek | NSW Environment & Heritage

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Heritage

Michelago rail bridge over Ingalara Creek

Item details

Name of item: Michelago rail bridge over Ingalara Creek
Other name/s: Ingalara Creek Railway Viaduct
Type of item: Built
Group/Collection: Transport - Rail
Category: Railway Bridge/ Viaduct
Location: Lat: -35.8186204844 Long: 149.1768221570
Primary address: Goulburn-Bombala railway, Michelago, NSW 2620
Local govt. area: Cooma-Monaro
Local Aboriginal Land Council: Bodalla

Boundary:

The listing boundary is the property boundary to east and west running parallel to the tracks, and a line crossing the tracks at a distance of 20 metres past each end of the bridge construction including embankments, formations and supports.
All addresses
Street AddressSuburb/townLGAParishCountyType
Goulburn-Bombala railwayMichelagoCooma-Monaro  Primary Address

Owner/s

Organisation NameOwner CategoryDate Ownership Updated
Rail Infrastructure CorporationState Government 

Statement of significance:

The timber Queen post truss viaduct was an economic bridge for the Quenbeyan to Cooma Railway at a time when the boom years of the 1880s was ending and funding for railway construction was decreasing. The Ingalara viaduct is accessible from the Monaro Highway and is an impressive timber structure. The Cooma Railway made a significant contribution to the development of the Monaro Region from the time of its construction 1887-89, and all the timber viaducts were important items of the railway's infrastructure. The timber Queen post deck viaduct was a significant structure in place of the expensive iron lattice bridges preferred by John Whitton. The Ingalara viaduct was technically sound and durable, having been built from renowned ironbark hardwood. The two deck Queen post truss timber viaducts on the Cooma Line, together with four on the Main North Line, are a unique class of railway bridge.
Date significance updated: 04 Apr 06
Note: The State Heritage Inventory provides information about heritage items listed by local and State government agencies. The State Heritage Inventory is continually being updated by local and State agencies as new information becomes available. Read the OEH copyright and disclaimer.

Description

Designer/Maker: John Whitton, Engineer-in-Chief for Railways
Builder/Maker: Main Contractor for the Queanbeyan to Cooma railway
Construction years: 1889-1889
Physical description: A 6-span timber truss viaduct, each span is 40 feet centre to centre of timber trestles.

The trusses are deck Queen post copied from one of I K Brunel’s Cornish timber bridges, the one called St Germans, built about 30 years earlier.
Physical condition and/or
Archaeological potential:
Condition is fair only due to lack of maintenance since rail services were suspended.
Date condition updated:04 Apr 06
Current use: Currently out of service
Former use: Carried single track Queanbeyan - Cooma Railway

History

Historical notes: When John Whitton, Engineer-in-Chief for Railways 1856-1890, extended the railway from Queanbeyan to Cooma, 1887–1889, he was under government pressure to reduce construction costs. One method was to build timber bridges, mostly ballast top timber bream bridges. But for two major waterways, Ingalara Creek and Bredbo River, he chose to use the same type of timber truss viaduct (Queen post deck trusses) that he had already used on the Main North between Glen Innes to Wallangarra (see inventories for Breardy, Severn and Bluff River viaducts, and Tenterfield Creek). Nearer to Cooma, at Chakola, he chose a different type of timber viaduct to cross Umaralla Creek.

Historic themes

Australian theme (abbrev)New South Wales themeLocal theme
3. Economy-Developing local, regional and national economies Transport-Activities associated with the moving of people and goods from one place to another, and systems for the provision of such movements (none)-

Assessment of significance

SHR Criteria a)
[Historical significance]
The timber Queen post truss viaduct was an economic bridge for the Quenbeyan to Cooma Railway at a time when the boom years of the 1880s was ending and funding for railway construction was decreasing.
SHR Criteria c)
[Aesthetic significance]
The viaduct is accessible from the Monaro Highway and is an impressive timber structure.
SHR Criteria d)
[Social significance]
The Cooma Railway made a significant contribution to the development of the Monaro Region from the time of its construction 1887-89, and the three timber viaducts were important items of the railway’s infrastructure.
SHR Criteria e)
[Research potential]
The timber Queen post deck viaduct was a significant structure in place of the expensive iron lattice bridges preferred by John Whitton. The Ingalara viaduct was technically sound and durable, having been built from renowned ironbark hardwood.
SHR Criteria f)
[Rarity]
These two timber viaducts on the Cooma Line, together with four on the Main North Line, are a unique class of railway bridge.
Integrity/Intactness: All these viaducts retain their original fabric.
Assessment criteria: Items are assessed against the PDF State Heritage Register (SHR) Criteria to determine the level of significance. Refer to the Listings below for the level of statutory protection.

Recommended management:

Rail Access Corporation to monitor the condition of all six viaducts and make essential repairs to ensure their structural integrity in case the line is reopened.

Procedures /Exemptions

Section of actDescriptionTitleCommentsAction date
57(2)Exemption to allow workStandard Exemptions SCHEDULE OF STANDARD EXEMPTIONS
HERITAGE ACT 1977
Notice of Order Under Section 57 (2) of the Heritage Act 1977

I, the Minister for Planning, pursuant to subsection 57(2) of the Heritage Act 1977, on the recommendation of the Heritage Council of New South Wales, do by this Order:

1. revoke the Schedule of Exemptions to subsection 57(1) of the Heritage Act made under subsection 57(2) and published in the Government Gazette on 22 February 2008; and

2. grant standard exemptions from subsection 57(1) of the Heritage Act 1977, described in the Schedule attached.

FRANK SARTOR
Minister for Planning
Sydney, 11 July 2008

To view the schedule click on the Standard Exemptions for Works Requiring Heritage Council Approval link below.
Sep 5 2008

PDF Standard exemptions for works requiring Heritage Council approval

Listings

Heritage ListingListing TitleListing NumberGazette DateGazette NumberGazette Page
Heritage Act - State Heritage Register 0104802 Apr 99 271546
Heritage Act - s.170 NSW State agency heritage register     

Study details

TitleYearNumberAuthorInspected byGuidelines used
Rail Infrastructure Corporation s.170 Register2003 Rail Infrastructure Corporation  Yes

References, internet links & images

TypeAuthorYearTitleInternet Links
Tourism 2007Michelago Tourist Railway View detail
TourismAttraction Homepage2007Michelago Tourist Railway View detail
WrittenJohn Forsyth Historical Notes for the Main North Railway.

Note: internet links may be to web pages, documents or images.

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(Click on thumbnail for full size image and image details)

Data source

The information for this entry comes from the following source:
Name: Heritage Office
Database number: 5012104


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