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Rocky Creek Dam
Rocky Creek Dam is a minor rock fill clay core embankment dam across the Rocky Creek, located upstream of Lismore in the Northern Rivers region of New South Wales, Australia. The dam's main purpose is to supply potable water for the region, including Lismore, Ballina, Byron Bay, Evans Head and Alstonville. The impounded reservoir is called Rocky Lake. Location and features Commenced in 1949 and completed in April 1953, the Rocky Creek Dam is a minor dam located in the Northern Rivers region of New South Wales, situated approximately north of Lismore. The dam is the principal component of the Rous County Council bulk supply network for the region, experiencing population growth. The dam was built by Dayal Singh under contract to the Rous County Council. The dam wall is made up of about of rock, soil, clay and concrete and is high and long. At 100% capacity the dam wall holds back of water at AHD. The surface area of Rocky Lake is and the catchment area is which in ... [...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 = Sen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an 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 surface of a rocky planet or 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 Venus, which cover ~80% of the surface, are basaltic; the 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 flows that can spread over great areas before cooling and solidifying. Flood basalts are thick sequence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In New South Wales
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Dams And Reservoirs In Australia
Dams and reservoirs in Australia is a link page for any dam or reservoir in Australia. Australian Capital Territory There are three key water storage facilities located in the Australian Capital Territory. The fourth source of water for Canberra, Googong Dam, is in NSW. In addition, there are four smaller man-made reservoirs used for recreation and as traps for sediment and fertilizers . New South Wales There are dams, weirs, catchments, and barrages in New South Wales. Of these, 135 facilities are considered major dams according to the Australian National Committee on Large Dams. Dams and reservoirs The largest reservoir in New South Wales is the Lake Eucumbene in the Snowy Mountains, formed by the Eucumbene Dam. Weirs and barrages Cancelled and decommissioned Northern Territory There are 805 named water storage facilities located in the Northern Territory. Of these, four facilities are considered major dams according to the Australian National Committee on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Areas Of New South Wales
The Protected areas of New South Wales include both terrestrial and marine protected areas. there are 225 national parks in New South Wales. Based on the Collaborative Australian Protected Area Database (CAPAD) 2020 data there are 2136 separate terrestrial protected areas with a total land area of (9.61% of the state's area). CAPAD data also shows 18 marine protected areas with a total area of , covering 39.63% of NSW waters. History New South Wales established the first known protected area in Australia, Royal National Park in 1879. The formation of the NSW National Parks and Wildlife Service in 1967 saw a bid in the conservation of the state's diversity of natural ecosystems and cultural heritage. Today New South Wales contains more than 16.4 million acres within 870 protected areas, as well as 225 different national parks, each with their own pristine beauty and tranquil scenery. New conservation areas In June 2020 the Government of New South Wales acquired , or o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park
A national park is a natural park in use for conservation purposes, created and protected by national governments. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently, there is a common idea: the conservation of 'wild nature' for posterity and as a symbol of national pride. The United States established the first "public park or pleasuring-ground for the benefit and enjoyment of the people", Yellowstone National Park, in 1872. Although Yellowstone was not officially termed a "national park" in its establishing law, it was always termed such in practice and is widely held to be the first and oldest national park in the world. However, the Tobago Main Ridge Forest Reserve (in what is now Trinidad and Tobago; established in 1776), and the area surrounding Bogd Khan Uul Mountain (Mongolia, 1778), which were restricted from cultivation in order to pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSW National Parks & Wildlife Service
The National Parks and Wildlife Service (NPWS) is a directorate of the New South Wales Department of Planning and Environment responsible for managing most of the protected areas in the state of New South Wales, Australia. Despite its name the NPWS is a state agency rather than a national one, with similarly named counterparts fulfilling comparable functions in other states and territories. History The NPWS was established in 1967 when the Fauna Protection Panel and the Parks and Reserves Branch of the NSW Lands Department were amalgamated under Lands Minister Tom Lewis . Lewis also established a charity, the National Parks Foundation, to assist the NPWS in raising funds for conservation. The first Director of the NPWS was Sam P. Weems, formerly of the US National Park Service. Seven years after the founding of the NPWS, various state laws regulating flora and fauna were consolidated together into the '' National Parks and Wildlife Act 1974'', which remains the enabling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoon Bridge
A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow- draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies. There are permanent pontoon bridges in civilian use that can carry highway traffic. Permanent floating bridges are useful for sheltered water crossings if it is not considered economically feasible to suspend a bridge from anchored piers. Such bridges can require a section that is elevated or can be raised or removed to allow waterborne traffic to pass. Pontoon bridges have been in use since ancient times and have been used to great advantage in many battles throughout history, such as the Battle of Garigliano, the Battle of Oudenarde, the crossing of the Rhine during World War II, the Iran–Iraq War's Operation Dawn 8, and most recently, in the 2022 Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilsons River (New South Wales)
Wilsons River, a perennial river and part of the Richmond River catchment, is situated in the Northern Rivers district of New South Wales, Australia. Course and features The river rises on the eastern slopes of Jerusalem Mountain within the Nightcap National Park, and flows generally southeast, west southwest, and south, joined by five minor tributaries, before reaching its mouth at its confluence with the Richmond River, near Coraki; descending over its course. The river passes through the major regional city of Lismore, where it is subject to seasonal flooding. The traditional custodians of the land surrounding the Wilsons River are the Aboriginal people of the Bundjalung clan, who lived as hunter-gatherers. Wilsons Creek was named after William Wilson, the first settler in Lismore, in the period 1844–5; and in 1976, the stream was renamed as Wilsons River. Environment and ecology Because of the extensive development of the catchment for agricultural and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slurry Wall
A slurry wall is a civil engineering technique used to build reinforced concrete walls in areas of soft earth close to open water, or with a high groundwater table. This technique is typically used to build diaphragm (water-blocking) walls surrounding tunnels and open cuts, and to lay foundations. Construction While a trench is being excavated to create a form for a wall, it is simultaneously filled with slurry (usually a mixture of bentonite and water). The dense but liquid slurry prevents the trench from collapsing by providing outward pressure, which balances the inward hydraulic forces and also retards water flow into the trench. The density of the slurry mix must be carefully monitored and adjusted to produce the correct outward pressure to prevent the trench walls from collapsing. Slurry walls are typically constructed by starting with a set of concrete guide walls, typically deep and thick. The guide walls are constructed near the ground surface to outline the des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Meteorology
The Bureau of Meteorology (BOM or BoM) is an executive agency of the Australian Government responsible for providing weather services to Australia and surrounding areas. It was established in 1906 under the Meteorology Act, and brought together the state meteorological services that existed before then. The states officially transferred their weather recording responsibilities to the Bureau of Meteorology on 1 January 1908. History The Bureau of Meteorology was established on 1 January 1908 following the passage of the ''Meteorology Act 1906''. Prior to Federation in 1901, each colony had had its own meteorological service, with all but two colonies also having a subsection devoted to astronomy. In August 1905, federal home affairs minister Littleton Groom surveyed state governments for their willingness to cede control, finding South Australia and Victoria unwilling. However, at a ministerial conference in April 1906 the state governments agreed to transfer responsibility for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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