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Ōi Dam
The is a dam located between the cities of Ena and Nakatsugawa in Gifu Prefecture, Japan. It was built to produce electricity for the surrounding area. The Agi River flows through the dam. Built in 1924, the Ōi Dam was the first dam built anywhere on the Kiso River system. It is also the first hydroelectric dam built in Japan. At tall, it is the largest gravity dam in Japan after the Taishakugawa Dam in Hiroshima Prefecture. In 1983, the New Ōi Dam (新大井ダム ''Shin-Ōi Damu'') was built just downstream. Combined, they produce 80,000 kW of power. History The upper portions of the Kiso River have a strong flow in terms of speed and volume, making it an ideal location for hydroelectric dams. Interest in hydroelectric dams in Japan grew greatly in 1911 when a hydroelectric law was passed. Given the technologies of the time, though, building a dam along the Kiso River was too difficult because floods often occurred. Surrounding area The reservoir created by the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agi River
The is a river in Japan which flows through Gifu Prefecture. It is part of the Kiso River system. Geography The river originates from Mount Yaki on the border of Nakatsugawa and Ena and flows west. It flows through the Akigawa Dam and the Ōi Dam before emptying into the Kiso River. History Ōi-juku, a post town on the historical Nakasendō, was on the banks of the Agi River.Nakasendō Ōi-juku . Central Japan Railroad Company. Accessed November 1, 2010. River communities The Agi river flows through the cities of andNakatsugawa
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Hydroelectric Dam
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hida-Kisogawa Quasi-National Park
is a quasi-national park in Japan. The park covers the Hida River from Gero to Minokamo in Gifu Prefecture; it also covers the middle reaches of the Kiso River from Mizunami, Gifu Prefecture, to Inuyama, Aichi Prefecture. It was designated a quasi-national park in March 1964. You also may find Wisteria, Metasequoia and Rhododendron among the plants and flowers in the national park. Area communities The park covers the below communities. The bulk of the park's area is within Gifu Prefecture. (Only is within the borders of Aichi Prefecture.) ;Gifu Prefecture :Kakamigahara, Mizunami, Minokamo, Ena, Sakahogi, Yaotsu, Kawabe, Hichisō, Shirakawa, Mitake ;Aichi Prefecture :Inuyama See also *List of national parks of Japan and in Japan are places of scenic beauty designated for protection and sustainable usage by the Minister of the Environment under the of 1957. National Parks are designated and in principle managed by the Ministry of the Environment. Quasi-Nat ... Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maruyama Dam
The is a dam on the border of Mitake and Yaotsu in Gifu Prefecture, Japan. It was built on the upper reaches of the Kiso River system. It is a gravity dam that is tall. It was built after World War II as part of a large, nationwide dam building project. Surrounding area Sosui Gorge (蘇水峡 ''Sosui-kyō'') was formed by the completion of the dam. Along with Ena Gorge is a river valley located at the mid reaches of the Kiso River, which runs through the cities of Ena and Nakatsugawa in Gifu Prefecture, Japan. Ena Gorge was so named by Shiga Shigetaka, a geographer of that time who praised the harmony of th ... further upstream, the area is part of the Hida-Kisogawa Quasi-National Park. References Dams in Gifu Prefecture Hydroelectric power stations in Japan Dams completed in 1955 1955 establishments in Japan {{Japan-powerstation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroshima Prefecture
is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Hiroshima Prefecture has a population of 2,811,410 (1 June 2019) and has a geographic area of 8,479 km² (3,274 sq mi). Hiroshima Prefecture borders Okayama Prefecture to the east, Tottori Prefecture to the northeast, Shimane Prefecture to the north, and Yamaguchi Prefecture to the southwest. Hiroshima is the capital and largest city of Hiroshima Prefecture, and the largest city in the Chūgoku region, with other major cities including Fukuyama, Hiroshima, Fukuyama, Kure, Hiroshima, Kure, and Higashihiroshima. Hiroshima Prefecture is located on the Seto Inland Sea across from the island of Shikoku, and is bounded to the north by the Chūgoku Mountains. Hiroshima Prefecture is one of the three prefectures of Japan with more than one UNESCO World Heritage Site. History The area around Hiroshima was formerly divided into Bingo Province and Aki Province. This location has been a center of tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taishakugawa Dam
Taishakugawa Dam is a dam in Shōbara, in the Hiroshima Prefecture of Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... Dams in Hiroshima Prefecture Dams completed in 1924 {{Japan-dam-stub ... [...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] |
Kiso River
The is a river in the Chubu region of Japan roughly long, flowing through the prefectures of Nagano, Gifu, Aichi, and Mie before emptying into Ise Bay a short distance away from the city of Nagoya.Nussbaum, Louis Frédéric ''et al.'' (2005). "Kiso-gawa" in ; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, seDeutsche Nationalbibliothek Authority File. It is the main river of the Kiso Three Rivers (along with Ibi and Nagara rivers) and forms a major part of the Nōbi Plain. The valley around the upper portion of the river forms the Kiso Valley. Parts of the Kiso River are sometimes referred to as the Japan Rhine because of its similarities to the Rhine in Europe. Kiso River embankment The was built in the Edo period and extends for a 47-kilometer length between the cities of Inuyama and Yatomi to protect against flooding. After a portion of this embankment was rebuilt after having collapsed due to record floods in May 1884, local volunteers brought in 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ena Gorge
is a river valley located at the mid reaches of the Kiso River, which runs through the cities of Ena and Nakatsugawa in Gifu Prefecture, Japan. Ena Gorge was so named by Shiga Shigetaka, a geographer of that time who praised the harmony of the mysteriously shaped rocks, which appeared to be continuous with the lakeside vista of Ōi Dam. It is situated in Ena Gorge Prefectural Park. The mysteriously shaped rock formations are prominent throughout. Byobu Rock, Gunkan Rock, Shishi Rock, Kagami Rock, and more can be seen, and there are jet boats that afford passengers a closer look at the rocks. This is also a very important place geologically. There is a Mineral Museum. The area also thrives as a vacation spot with close proximity to the Nagoya Metropolitan area. Ena-kyo Ohashi Bridge spans Ena Gorge. Enakyo Bridge.JPG, Ena-kyo Bridge Enakyo wonderland.JPG, Ena-kyo Wonderland Kasa Rock ) is a rock formation in the Ena Gorge area. It is a National Natural Monument. The rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nakatsugawa, Gifu
Magome-juku on the Nakasendō is a city located in Gifu, Japan. , the city had an estimated population of 78,930, and a population density of 120 persons per km2 in 30,788 households The total area of the city was . Geography Nakatsugawa is in the Tōnō region of far eastern Gifu Prefecture, bordering on Nagano Prefecture. Mount Ena, the southernmost of the Kiso Mountains on the border between Nakatsugawa, Aichi and Nagano Prefecture is the highest point in the city, with an elevation of . The Kiso River and the Agi River flow through the city. Climate The city has a climate characterized by hot and humid summers, and mild winters (Köppen climate classification ''Cfa''). The average annual temperature in Nakatsugawa is . The average annual rainfall is with July as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . Neighbouring municipalities *Gifu Prefecture **Ena **Gero ** Shirakawa ** Higashishirakawa *Nag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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