Cowra rail bridge over Lachlan River | NSW Environment & Heritage

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Heritage

Cowra rail bridge over Lachlan River

Item details

Name of item: Cowra rail bridge over Lachlan River
Other name/s: Cowra Lattice Railway Bridge
Type of item: Built
Group/Collection: Transport - Rail
Category: Railway Bridge/ Viaduct
Location: Lat: -33.8505094929 Long: 148.6825861390
Primary address: Blayney-Harden railway, Cowra, NSW 2794
Local govt. area: Cowra
Local Aboriginal Land Council: Cowra

Boundary:

The boundary is the area on which the bridge is located including supports, embankments, track formation and structure and extends for a distance of approximately 20 metresin all directions from the structure.
All addresses
Street AddressSuburb/townLGAParishCountyType
Blayney-Harden railwayCowraCowra  Primary Address

Owner/s

Organisation NameOwner CategoryDate Ownership Updated
Rail Infrastructure CorporationState Government 

Statement of significance:

Cowra was reached by rail in 1886, the line extending from Young. The bridge built in 1886 is one of the original iron lattice Whitton bridges and is an important surviving element from the most significant period of railway development. It is an excellent example in an important railway town. The building of such a relatively large structure on this cross country line reflects the importance that the railway administration gave to this line to provide an outlet for coal from Lithgow, and produce from central NSW, to reach the south and Victoria and vice versa.

The bridge is a member of the most significant group of colonial bridges in New South Wales. Collectively, as items of railway infrastructure, they contributed significantly to the history and development of New South Wales. Each bridge is an imposing structure at its site. In terms of contemporary bridge technology the wrought iron lattice bridge was among the best for major bridgeworks.
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: D & W Robertson, ironwork by A. Lecoq, Halle, Belgium.
Construction years: 1886-1887
Physical description: A 3-span continuous iron lattice bridge. The spans are 159 feet to centres of piers and the lattice work has 4 triangulations. The piers are pairs of cast iron cylinders (supplied by Stockton Forge Co, England). The bridge has wrought iron plate web girders at each end of the lattice bridge.
Current use: Currently out of service
Former use: Carried the single track Blayney to Harden Railway.

History

Historical notes: During the 20-year period 1873-1893 there was a massive programme of public works in New South Wales, particularly in expanding the road and rail networks. It was a boom period that ended with a severe economic depression.

Despite the boom conditions, the respective Chief Engineers, for Roads (William C Bennett) and for Railways (John Whitton) were constrained to economise by using as much local material as possible, consequently an enormous amount of hardwood timber was used for bridgeworks, mostly timber beam and timber truss bridges.

However, there were many major rivers to be crossed, requiring long span bridges, for which no form of timber bridge was suitable. These large bridges had to be metal and supplied from England, a very expensive import cost to the successive colonial governments.

Both Chief Engineers were British so they chose the widely used wrought iron lattice truss bridge in the half-through form. Twelve of these were built for the railways and 24 for roads.

These two sets of iron lattice bridges are the most significant group of bridges of the colonial period. A high percentage are extant and still in use, 11 on railways and 18 on roads.

The current railway lattice bridges are,

1876 Macquarie River at Bathurst, 1881 Murrumbidgee River at Wagga Wagga,
1881 Macquarie River at Wellington, 1882 Peel River at Tamworth
1882 MacDonald River at Woolbrook, 1884 Murray River at Albury
1884 Macquarie River at Dubbo 1885 Murrumbidgee River at Narrandera
1887 Lachlan River at Cowra.

Two former railway lattice bridges (1885 Georges River at Como and 1886 Parramatta River at Meadowbank) were converted for use by pedestrian/cycle ways.

The 1871 lattice railway bridge over the Hunter River at Aberdeen was replaced by steel girders and demolished.

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 Public tramline system-
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 Engineering the public railway system-
7. Governing-Governing Government and Administration-Activities associated with the governance of local areas, regions, the State and the nation, and the administration of public programs - includes both principled and corrupt activities. Developing roles for government - building and administering rail networks-

Assessment of significance

SHR Criteria a)
[Historical significance]
Twelve wrought iron lattice railway bridges were built in New South Wales during the boom period for railway construction 1871-1887, starting at Aberdeen and ending at Cowra. Nine of the survivors are owned and managed by the Rail Access Corporation.
SHR Criteria c)
[Aesthetic significance]
All nine iron lattice railway bridges are imposing structures.
SHR Criteria d)
[Social significance]
Every iron lattice railway bridge crossed a major river which made it possible for the railway extension to develop the districts reached, socially and commercially.
SHR Criteria g)
[Representativeness]
Collectively, the iron lattice railway bridges represent a significant class of bridge structure.
Integrity/Intactness: Apart from relatively minor technical works of repair and strengthening, all the iron lattice railway bridges retain their original fabrics.
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 continue monitoring all the iron lattice railway bridges.

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 0103102 Apr 99 271546
Heritage Act - s.170 NSW State agency heritage register     
Institution of Engineers (NSW) Historic Engineering Marker     
Register of the National Estate  18 Apr 89   

Study details

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

References, internet links & images

TypeAuthorYearTitleInternet Links
WrittenDon Fraser1995Bridges Down Under
WrittenRoss Best and Don Fraser1982Railway Lattice Girder Bridges in New South Wales

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: 5045435


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