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Laggan Dam
Laggan Dam is a dam located on the River Spean south west of Loch Laggan in the Scottish Highlands. History The structure was built as part of the Lochaber hydroelectric scheme by Balfour Beatty for the British Aluminium Company and construction was finished in 1934. The supervising engineers were the firm of C S Meik and William Halcrow, now known as the Halcrow Group. The dam was designated a Category B listed building in 1985. It was upgraded to Category A listing in 2011, following a review as part of Hydroelectric Power Thematic Survey 2010. Design The dam is about long, and high between the level of the foundations and the crest of the spillway. It is curved upstream like an arch dam with a radius of curvature of , but works purely on the principle of a gravity dam. The whole crest of the dam, except for a section in the middle that houses equipment, is a spillway broken into 29 bays by piers that support a roadway across the dam. As well as the spillway, there are s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not designed to convey water. Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later. Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an intake tower is a structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1934
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1934
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 us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Scotland
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 us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strath Mashie
A strath is a large valley, typically a river valley that is wide and shallow (as opposed to a glen, which is typically narrower and deep). Word and etymology An anglicisation of the Gaelic word ''srath'', it is one of many that have been absorbed into the English and Scots languages. It is commonly used in rural Scotland to describe a wide valley, even by non-Gaelic speakers. In Scottish place-names, ''Strath-'' is of Gaelic and Brittonic origin. ''Strath-'' names have the genesis with Gaelic ''srath'' meaning "broad-valley", as well as with the Cumbric and Pictish cognates (c.f. Welsh ''ystrad''). Gaelic ''srath'' is derived from Old Irish ''srath'', recorded as having meant "grassland". The modern Scottish Gaelic sense of "broad-valley", paralleling the meaning of Brittonic cognates, developed from substrate influence from Pictish. Toponymy It occurs in numerous place names within Scotland including Strathspey and Strathclyde. Internationally, many places with Scotti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueduct (water Supply)
An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term ''aqueduct'' is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term ''aqueduct'' also often refers specifically to a bridge carrying an artificial watercourse. Aqueducts were used in ancient Greece, ancient Egypt, and ancient Rome. The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water. Etymology The word ''aqueduct'' is derived from the Latin words (''water'') and (''led'' or ''guided''). Ancient aqueducts Although particularly associated with the Romans, aqueducts we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A86 Road
The A86 is a major road in Scotland. It runs from the Great Glen at Spean Bridge to Kingussie and the Cairngorms National Park via Loch Laggan. It is a primary route for its entire length. The road was built as a parliamentary road by Thomas Telford in 1817 to link Kingussie to Fort William. The road has a poor safety record, and has been assessed as medium to high risk of a serious or fatal accident by EuroRAP European Road Assessment Programme (EuroRAP) is an international nonprofit ( vzw) organisation registered in Belgium. It operates from Worting House, Basingstoke, Hampshire. In partnership with national motoring organisations and local autho .... ''eurorap.org'' References |
Fort William, Highland
Fort William ( gd, An Gearasdan ; "The Garrison") formerly ( gd, Baile Mairi) and ( gd, Gearasdan dubh Inbhir-Lochaidh) (Lit. "The Black Garrison of Inverlochy"), ( sco, The Fort), formerly ( sco, Maryburgh) is a town in Lochaber in the Scottish Highlands, located on the eastern shore of Loch Linnhe. At the 2011 census, Fort William had a population of 10,459, making it the second largest settlement in both the Highland council area, and the whole of the Scottish Highlands; only the city of Inverness has a larger population. Fort William is a major tourist centre on the Road to the Isles, with Glen Coe just to the south, to the east, and Glenfinnan to the west. It is a centre for hillwalking and climbing due to its proximity to Ben Nevis and many other Munro mountains. It is also known for its nearby downhill mountain bike track. It is the start/end of both the West Highland Way (Milngavie – Fort William) and the Great Glen Way (a walk/cycle way Fort William–Inverness). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loch Treig
Loch Treig is a 9 km freshwater loch situated in a steep-sided glen 20 km east of Fort William, Scotland, Fort William, in Lochaber, Highland (council area), Highland, Scotland. While there are no roads alongside the loch, the West Highland Line follows its eastern bank. Since 1929 Loch Treig has been a reservoir (water), reservoir, retained behind the Treig Dam, forming part of the Lochaber hydro-electric scheme, which required diversion of the West Highland Railway. The increase in water level following the construction of the dam submerged the hamlets of Kinlochtreig and Creaguaineach at the loch's southern end, which were stopping points on a cattle drovers' road along the Road to the Isles, which linked up Lochaber and the Inner Hebrides to markets in Perthshire in the south. See also *List of reservoirs and dams in the United Kingdom References Lochs of Highland (council area), Treig Reservoirs in Highland (council area), Treig Lochaber Freshwater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals. Granite is nearly alway ... [...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] |
