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Shintoyone Dam
The Shintoyone Dam (新豊根ダム) is a multipurpose dam in the village of Toyone in the Aichi Prefecture of Japan. History The potential of the Tenryū River valley for hydroelectric power development was realized by the Meiji government at the start of the 20th century. The Tenryū River was characterized by a high volume of flow and a fast current. Its mountainous upper reaches and tributaries were areas of steep valleys and abundant rainfall, and were sparsely populated. However, the bulk of investment in hydroelectric power generation in the region was centered on the Ōi River, and it was not until the Taishō period that development began on the Tenryū River. With the completion of the Sakuma Dam, one of the tallest dams in Japan, on the main stream of the Tenryū River, developers turned their eyes to the confluence of the Ōnyugawa (大入川), a major tributary of the Tenryū River, and the Ōchisegawa (大千瀬川) in Aichi Prefecture. The Ōnyugawa was also of i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyone, Aichi
Kamikurogawa, Toyone is a village located in Kitashitara District, Aichi Prefecture, Japan. , the village had an estimated population of 1,031 in 507 households, and a population density of 6.61 persons per km². The total area of the village was . Geography Toyone is located in the extreme northeast corner of Aichi Prefecture. Most of the village is within the borders of the Tenryū-Okumikawa Quasi-National Park. The reservoir from Sakuma Dam in Shizuoka Prefecture extends into the village. Shintoyone Dam is also located within the borders of Toyone. Chausuyama, at 1415 meters, on the border between Aichi and Nagano is the highest point in Aichi Prefecture. Neighboring municipalities Aichi Prefecture * Kitashitara District ** Shitara ** Tōei Nagano Prefecture * Shimoina District **Anan ** Neba ** Tenryū ** Urugi Shizuoka Prefecture * Tenryū-ku, Hamamatsu Demographics Per Japanese census data, the population of Toyone has been decreasing rapidly over the past 70 yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Erosion
Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward retreat of the shoreline can be measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes. Coastal erosion may be caused by hydraulic action, abrasion, impact and corrosion by wind and water, and other forces, natural or unnatural. On non-rocky coasts, coastal erosion results in rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion. Softer areas become eroded much faster than harder ones, which typically result in landforms such as tunnels, bridges, columns, and pillars. Over time the coast generally evens out. The softer areas fill up with sediment eroded from hard areas, and rock formations are eroded away. Also erosion co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1972
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 Pumped-storage Hydroelectric Power Stations
The following page lists all pumped-storage hydroelectric power stations that are larger than in installed generating capacity, which are currently operational or under construction. Those power stations that are smaller than , and those that are decommissioned or only at a planning/proposal stage may be found in regional lists, listed at the end of the page. List of plants larger than 1000 MW capacity The table below lists currently operational power stations. Some of these may have additional units under construction, but only current installed capacity is listed. Under construction This table lists future 1,000 MW or larger stations that are under construction; some may be partially operational with a current installed capacity under 1,000 MW. See also * List of energy storage projects * List of hydroelectric power station failures * Lists of hydroelectric power stations * List of largest power stations * United States Department of Energy Global E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In Japan ...
This page is a list of power stations in Japan that are publicly or privately owned. List Former power station * Senju Thermal Power Station See also *Electricity sector in Japan *Energy in Japan *List of largest power stations in the world References {{Economy of Japan Japan Power stations Power stations A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenryū-Okumikawa Quasi-National Park
is a quasi-national park in the Tōkai region of Honshū in Japan. It is rated a protected landscape (category V) according to the IUCN. The park includes the Tenryū-kyō Gorge of the upper Tenryū River in Iida, Sakuma Dam and its surrounding forests, Atera Seven Falls, Chausu Mountains and Mount Horaiji. It straddles the border between Shizuoka, Aichi and Nagano Prefectures. The area was designated a quasi-national park on October 1, 1969. Like all Quasi-National Parks in Japan, the park is managed by the local prefectural governments. 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 ... References *Southerland, Mary and Britton, Dorothy. ''The National Parks of Japan''. Kodansha International (1995). National parks of Japan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shintoyone Pumped Storage Power Station
The is a large pumped-storage hydroelectric power plant in Toyone, Kitashitara, Aichi Prefecture, Japan. With an installed capacity of , the plant is one of the largest pumped-storage power stations in Japan. The facilities are run by Electric Power Development Company (J-Power). Like most pumped-storage facilities, the power station uses two reservoirs, releasing and pumping as the demand rises and falls. Midori lake, formed by the Shintoyone Dam, is the upper artificial reservoir, while Sakuma Dam forms the lower reservoir. Shintoyone Dam is a 116.5 m-tall arch dam, while Sakuma Dam is a 155.5 m-tall concrete 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. .... Sakuma Dam was built between 1953 and 1956 to provide water to the Sakuma conventional hydroelectric pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kumagai Gumi
is a Japanese construction company founded in Fukui, Fukui Prefecture, Japan. The company still has registered headquarters in Fukui, but the actual head office is located in Shinjuku, Tokyo. History Santaro Kumagai, the company's founder, began his career as a civil servant in a police department. His construction career started as a stonemason, crafting religious monuments and performing work for the expanding railway network. Kumagai founded his own company in 1898 and incorporated it in 1938. Between 1955 and 1983 the company accounted for more than 10% of all contracts awarded to the fifty-seven members of the Overseas Construction Association of Japan, a figure that outranked the ‘Big Five’ domestic giant construction companies. As overseas projects were riskier, these five companies were reluctant to expand beyond Japan. Kumagai Gumi took advantage of the situation and sought work overseas, as both as a construction company and a developer, using BOT as project fina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sakuma Dam
The is a dam on the Tenryū River, located on the border of Toyone, Kitashitara District, Aichi Prefecture on the island of Honshū, Japan. It is one of the tallest dams in Japan and supports a 350 MW hydroelectric power station. Nearby a frequency converter station is installed, allowing interchange of power between Japan's 50 Hz and 60 Hz AC networks. History The potential of the Tenryū River valley for hydroelectric power development was realized by the Meiji government at the start of the 20th century. The Tenryū River was characterized by a high volume of flow and a fast current. Its mountainous upper reaches and tributaries were areas of steep valleys and abundant rainfall, and were sparsely populated. However, the bulk of investment in hydroelectric power generation in the region was centered on the Ōi River, and it was not until the Taishō period that development began on the Tenryū River. Private entrepreneur Fukuzawa Momosuke founded the , which l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans an archipelago of 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa. Tokyo is the nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the eleventh most populous country in the world, as well as one of the most densely populated and urbanized. About three-fourths of the country's terrain is mountainous, concentrating its population of 123.2 million on narrow coastal plains. Japan is divided into 47 administrative prefectures and eight traditional regions. The Greater Tokyo Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōi River
The is a river in Shizuoka Prefecture, Japan. Geography The Ōi River flows from the Akaishi Mountains, the branch of the Japanese Southern Alps which form the border between Shizuoka, Nagano and Yamanashi prefectures. These mountains, with peaks ranging from 2000–3000 meters, are characterized by heavy rainfall (up to 3000 mm per year) and deep V-shaped valleys. The river follows a generally southern course, with seven wide bends in its central region, before exiting into Suruga Bay in the Philippine Sea. History The Ōi River is mentioned in Nara period records as forming the border between Tōtōmi and Suruga Provinces. However, due to shifting of the course of the river over the centuries, by the late Muromachi period, this was not always the case. During the Edo period, the Tōkaidō developed as the major highway linking Edo with Kyoto, and ''daimyōs'' from the western domains were forced to travel on a regular basis to Edo to attend to the ''shōgun'' in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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