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Como Railway Bridge
The Como railway bridge carries the Illawarra railway line across the Georges River between the Sydney suburbs of Oatley and Como. First bridge The original Como Railway Bridge opened on 25 December 1885 as part of the extension of the Illawarra railway line from Hurstville to Sutherland. It was a single track lattice truss bridge designed by John Whitton, the Chief Engineer of the New South Wales Government Railways. In 1890 the northern part of the Illawarra Line was duplicated, and the southern part towards Sutherland in 1891. This involved merging the two lines using points to a single line. In 1894 the tracks across the bridge were altered into a single gauntlet track on the bridge, which enabled trains to cross in either direction without points. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illawarra Railway Line
The South Coast Railway (also known as the Illawarra Railway) is a commuter and goods railway line from Sydney to Wollongong and Bomaderry in New South Wales, Australia. Beginning at the Illawarra Junction, the line services the Illawarra and South Coast regions of New South Wales. Opening in segments between 1884 and 1893, the South Coast railway line was built primarily to service the Coal Cliff Colliery, in which colonial government ministers and legislators were shareholders and as an economic link between the Illawarra and Sydney. It later connected the later industrial works at Port Kembla to the greater metropolitan freight railway network in Sydney. The line also serves as a public transport link for residents in St George, Sutherland and the Illawarra. The 56-station, 153-kilometre line is owned by the NSW government's Transport Asset Holding Entity, with passenger services on the line provided by Sydney Trains' Eastern Suburbs & Illawarra Line service in suburban S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Switch
A railroad switch (), turnout, or ''set ofpoints () is a mechanical installation enabling railway trains to be guided from one track to another, such as at a railway junction or where a spur or siding branches off. The most common type of switch consists of a pair of linked tapering rails, known as ''points'' (''switch rails'' or ''point blades''), lying between the diverging outer rails (the ''stock rails''). These points can be moved laterally into one of two positions to direct a train coming from the point blades toward the straight path or the diverging path. A train moving from the narrow end toward the point blades (i.e. it will be directed to one of the two paths, depending on the position of the points) is said to be executing a ''facing-point movement''. For many types of switch, a train coming from either of the converging directions will pass through the switch regardless of the position of the points, as the vehicle's wheels will force the points to move. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truss Bridges In Australia
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Bridges In New South Wales
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer facili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lattice Truss Bridges
Lattice may refer to: Arts and design * Latticework, an ornamental criss-crossed framework, an arrangement of crossing laths or other thin strips of material * Lattice (music), an organized grid model of pitch ratios * Lattice (pastry), an ornamental pattern of crossing strips of pastry Companies * Lattice Engines, a technology company specializing in business applications for marketing and sales * Lattice Group, a former British gas transmission business * Lattice Semiconductor, a US-based integrated circuit manufacturer Science, technology, and mathematics Mathematics * Lattice (group), a repeating arrangement of points ** Lattice (discrete subgroup), a discrete subgroup of a topological group whose quotient carries an invariant finite Borel measure ** Lattice (module), a module over a ring which is embedded in a vector space over a field ** Lattice graph, a graph that can be drawn within a repeating arrangement of points ** Lattice-based cryptography, encryption systems bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Sydney
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1885
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Holland Group
The John Holland Group is an infrastructure, building, rail and transport business operating in Australia and New Zealand. Headquartered in Melbourne, it is a subsidiary of China Communications Construction. History The company was founded in 1949 by John Holland. In 1991 the business was purchased by Janet Holmes à Court's Heytesbury Pty Ltd. In 2000, Leighton Holdings bought a 70% stake in the company, this was increased to 99% in 2004 and 100% in December 2007. In December 2002, the construction assets of Transfield Holdings were acquired. In November 2012, John Holland Tunnelling was awarded the International Tunnelling Contractor of the Year, for the Northern Sewerage Project in Melbourne. In December 2014, Leighton Holdings agreed terms with China Communications Construction to sell John Holland. The transaction was completed in April 2015 after the Federal Government approved the sale. Major projects Major projects include: Transport As part of the consortium s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New South Wales State Heritage Register
The New South Wales State Heritage Register, also known as NSW State Heritage Register, is a heritage list of places in the state of New South Wales, Australia, that are protected by New South Wales legislation, generally covered by the Heritage Act 1977 and its 2010 amendments. The register is administered by the Heritage Council of NSW via Heritage NSW, a division of the Government of New South Wales Department of Planning and Environment. The register was created in 1999 and includes items protected by heritage schedules that relate to the State, and to regional and to local environmental plans. As a result, the register contains over 20,000 statutory-listed items in either public or private ownership of historical, cultural, and architectural value. Of those items listed, approximately 1,785 items are listed as significant items for the whole of New South Wales; with the remaining items of local or regional heritage value. The items include buildings, objects, monuments, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penshurst, New South Wales
Penshurst () is a suburb in southern Sydney, in the state of New South Wales, Australia. Penshurst is located 17 kilometres south of the Sydney central business district and is part of the St George area. Penshurst features low to medium-density housing. It has a predominantly older population however it is increasingly being populated by a new generation of migrant families who are attracted by its proximity to Hurstville. History Penshurst was named after Penshurst, Kent, England. Originally part of the land grant to Robert Townson (1763–1827), the land was acquired in 1830 by John Connell, who left it to his grandsons J.C. and E.P. Laycock. Connell's Bush was subdivided by the Laycocks and the western part sold to Thomas Sutcliffe Mort. The early work in the area was timber-cutting and small farming. The railway station opened 17 May 1890. A large portion of Penshurst located south of the railway line is referred to as the MacRae's Estate, as it was once owned by the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woronora Dam
The Woronora Dam is a heritage-listed concrete gravity dam with an uncontrolled serpentine spillway across the Woronora River, located south of Greater Metropolitan Sydney, in the suburb of Woronora Dam, Sutherland Shire, New South Wales, Australia. The principal purpose of the dam is for potable water supply for Sydney's southern suburbs and the northern suburbs of the Illawarra region. The impounded reservoir is also called Woronora Dam and is sometimes incorrectly called Lake Woronora. The dam was designed by G. E. Haskins, Chief Engineer and the Metropolitan Water, Sewerage and Drainage Board of NSW (MWS&DB) and built from 1927 to 1941 by the MWS&DB. The property is owned by the Sydney Catchment Authority, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 18 November 1999. In 2009 the NSW State government granted the mining company Peabody conditional approval to mine for coal in the Reservoir catchment and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
