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Cataract Dam
The Cataract Dam is a heritage-listed dam in Cataract (formerly Appin), New South Wales, Australia, provides water to the Macarthur and Illawarra regions, the Wollondilly Shire, and metropolitan Sydney. It is one of four dams and weirs in the catchment of the Upper Nepean Scheme. Completed in 1907 under the supervision of Ernest Macartney de Burgh, the dam is currently owned by Water NSW, an agency of the Government of New South Wales. The dam was listed on the NSW State Heritage Register on 18 November 1999. Structural details A gravity dam with an unlined side spillway extending from the left abutment, it is tall; long; and it holds of water. Cataract Dam was the first dam built in the Upper Nepean Scheme. It was also first dam in Australia to use pre-cast moulded concrete blocks for the upstream face of the dam. The downstream face is of mass poured basalt concrete, with a basalt facing. A readily accessible source of suitable rock was located at Sherbrooke, situated near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New South Wales
) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of New South Wales , established_title2 = Establishment , established_date2 = 26 January 1788 , established_title3 = Responsible government , established_date3 = 6 June 1856 , established_title4 = Federation , established_date4 = 1 January 1901 , named_for = Wales , demonym = , capital = Sydney , largest_city = capital , coordinates = , admin_center = 128 local government areas , admin_center_type = Administration , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Margaret Beazley , leader_title3 = Premier , leader_name3 = Dominic Perrottet (Liberal) , national_representation = Parliament of Australia , national_representation_type1 = Senat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wollondilly Shire
Wollondilly Shire is a periurban local government area adjacent to the south-western fringe of Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ..., parts of which fall into the Macarthur, New South Wales, Macarthur, Blue Mountains (New South Wales), Blue Mountains and Central Tablelands regions in the state of New South Wales, Australia. Wollondilly Shire was created by proclamation in the NSW Government Gazette on 7 March 1906, following the passing of the Local Government (Shires) Act 1905, and amalgamated with the Municipality of Picton on 1 May 1940. Wollondilly Shire is named after the Wollondilly River. The area is traversed by the Hume Highway and the Southern Highlands railway line, New South Wales, Southern Highlands railway line. Wollondilly Shire contains several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botany Swamps
The Botany Water Reserves are a heritage-listed former water supply system and now parkland and golf course at 1024 Botany Road, Mascot, Bayside Council, Sydney, New South Wales, Australia. It was designed by City Engineers, W. B. Rider, E. Bell (1856–1871), and Francis Bell (1871–1878). It is also known as Botany Swamps, Botany Wetlands, Mills Stream, Bridge Pond, Lakes Golf Course, Eastlakes Golf Course, Bonnie Doon Golf Course, and Astrolabe Park. The property is owned by Sydney Water, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 18 November 1999. History On 29 April 1770 Captain James Cook made his first landfall in Australia at Botany Bay. The botanist, Sir Joseph Banks, and his Swedish assistant, Daniel Solander from Cook's ship , spent several days ashore collecting vast numbers of previously unknown plants. Cook was in two minds about a suitable name for the Bay – his journal first refers to it as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cataract Dam - Judge Backhouse In Foreground 22 April 1922 (RAHS Photograph Collection) (27704715352)
A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry or double vision, halos around light, trouble with bright lights, and trouble seeing at night. This may result in trouble driving, reading, or recognizing faces. Poor vision caused by cataracts may also result in an increased risk of falling and depression. Cataracts cause 51% of all cases of blindness and 33% of visual impairment worldwide. Cataracts are most commonly due to aging but may also occur due to trauma or radiation exposure, be present from birth, or occur following eye surgery for other problems. Risk factors include diabetes, longstanding use of corticosteroid medication, smoking tobacco, prolonged exposure to sunlight, and alcohol. The underlying mechanism involves accumulation of clumps of protein or yellow-brown pigment in the lens that reduces transmission o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nepean River
Nepean River (Darug: Yandhai), is a major perennial river, located in the south-west and west of Sydney, New South Wales, Australia. The Nepean River and its associated mouth, the Hawkesbury River, almost encircles the metropolitan region of Sydney. The headwaters of the Nepean River rise near Robertson, about south of Sydney and about from the Tasman Sea. The river flows north in an unpopulated water catchment area into Nepean Reservoir, which supplies potable water for Sydney. North of the dam, the river forms the western edge of Sydney, flowing past the town of Camden and the city of Penrith, south of which flowing through the Nepean Gorge. Near Wallacia it is joined by the dammed Warragamba River; and north of Penrith, near Yarramundi, at its confluence with the Grose River, the Nepean becomes the Hawkesbury River. Changes to the natural flow of the river The river supplies water to Sydney's five million people as well as supplying agricultural production. This, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclopean Masonry
Cyclopean masonry is a type of stonework found in Mycenaean architecture, built with massive limestone boulders, roughly fitted together with minimal clearance between adjacent stones and with clay mortar or no use of mortar. The boulders typically seem unworked, but some may have been worked roughly with a hammer and the gaps between boulders filled in with smaller chunks of limestone. The most famous examples of Cyclopean masonry are found in the walls of Mycenae and Tiryns, and the style is characteristic of Mycenaean fortifications. Similar styles of stonework are found in other cultures and the term has come to be used to describe typical stonework of this sort, such as the old city walls of Rajgir. The term comes from the belief of classical Greeks that only the mythical Cyclopes had the strength to move the enormous boulders that made up the walls of Mycenae and Tiryns. Pliny's ''Natural History'' reported the tradition attributed to Aristotle, that the Cyclopes were t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulli Pass
Bulli Pass is a mountain pass with an elevation of located northwest of , New South Wales, Australia. It is situated on the Illawarra escarpment west of the Illawarra coastal plain. It was built during the 19th century for use by loggers and locals transporting goods to and from Sydney. Beforehand sea travel was the only reliable method. The pass is traversed by the Princes Highway from the Illawarra plain in the south-east to the Woronora Plateau in the north-west, rising over in doing so. The pass has a scenic lookout at the top of Bulli Mountain, near Sublime Point Lookout, and this is the sight of the under construction Southern Gateway project. The pass is protected bushland under the Bulli Pass reserve and walking tracks to the lookouts are under repair since 2003. The pass was the first major route out of the plain, not including Mount Keira Road built in 1834 by convicts or O'Briens Road, a private tollway. The Bulli Pass is mainly a two lane undivided road with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dam
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSW State Heritage Register
The New South Wales State Heritage Register, also known as NSW State Heritage Register, is a heritage register, 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 government agency, division of the New South Wales government, Government of New South Wales Department of Planning and Environment (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 Regions of New South Wales, regional and to Local government in New South Wales, 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 1,78 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of New South Wales
The Government of New South Wales, also known as the NSW Government, is the Australian state democratic administrative authority of New South Wales. It is currently held by a coalition of the Liberal Party and the National Party. The Government of New South Wales, a parliamentary constitutional monarchy, was formed in 1856 as prescribed in its Constitution, as amended from time to time. Since the Federation of Australia in 1901, New South Wales has been a state of the Commonwealth of Australia, and the Constitution of Australia regulates its relationship with the Commonwealth. Under the Australian Constitution, New South Wales, as with all states, ceded legislative and judicial supremacy to the Commonwealth, but retained powers in all matters not in conflict with the Commonwealth. Executive and judicial powers New South Wales is governed according to the principles of the Westminster system, a form of parliamentary government based on the model of the United Kingdom. Legisl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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