Yamba Dam
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Yamba Dam
is a dam in Naganohara, Gunma, Naganohara, Agatsuma District, Gunma, Agatsuma District, Gunma Prefecture, Japan. Construction began in 1967, with effective completion in October 2019 and the official opening on 1 April 2020. Planning for the dam began in 1952, and it was planned to be completed by 2015. The dam's construction had seen sustained local opposition and a ballooning budget, and a change of National government in 2009 resulted in the project being halted, being about 70% completed at the time. Another change of government in 2012 resulted in the project being revived and subsequently completed. Construction required the relocation of part of the Agatsuma Line, several roads and affected residents. References

This article incorporates material from the corresponding article in the Japanese Wikipedia. Dams in Gunma Prefecture {{Japan-dam-stub ...
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Agatsuma River
Agatsuma may refer to: *, Japanese shamisen player *Agatsuma District, Gunma, a district in Gunma Prefecture, Japan *Agatsuma, Gunma, a town in Gunma Prefecture, Japan *Agatsuma River, a river in Japan *Agatsuma Entertainment, a Japanese toy/video game company *Zenitsu Agatsuma, a character from the manga/anime series Kimetsu no Yaiba (Demon Slayer) {{disambiguation, surname Japanese-language surnames ...
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Gunma Prefecture
is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of 6,362 km2 (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushima Prefecture to the north, Nagano Prefecture to the southwest, Saitama Prefecture to the south, and Tochigi Prefecture to the east. Maebashi is the capital and Takasaki is the largest city of Gunma Prefecture, with other major cities including Ōta, Isesaki, and Kiryū. Gunma Prefecture is one of only eight landlocked prefectures, located on the northwestern corner of the Kantō Plain with 14% of its total land being designated as natural parks. History The ancient province of Gunma was a center of horse breeding and trading activities for the newly immigrated continental peoples. The arrival of horses and the remains of horse tackle coincides with the arrival of a large migration from the mainland. From this point forward, the hor ...
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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 Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ...
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Japanese Yen
The is the official currency of Japan. It is the third-most traded currency in the foreign exchange market, after the United States dollar (US$) and the euro. It is also widely used as a third reserve currency after the US dollar and the euro. The New Currency Act of 1871 introduced Japan's modern currency system, with the yen defined as of gold, or of silver, and divided decimally into 100 ''sen'' or 1,000 ''rin''. The yen replaced the previous Tokugawa coinage as well as the various ''hansatsu'' paper currencies issued by feudal ''han'' (fiefs). The Bank of Japan was founded in 1882 and given a monopoly on controlling the money supply. Following World War II, the yen lost much of its prewar value. To stabilize the Japanese economy, the exchange rate of the yen was fixed at ¥360 per US$ as part of the Bretton Woods system. When that system was abandoned in 1971, the yen became undervalued and was allowed to float. The yen had appreciated to a peak of ¥271 per US$ ...
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Hectares
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare ("hecto-" + "are") was thus 100 ''ares'' or  km2 (10,000 square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa (1,000 m2) and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, is ...
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Naganohara, Gunma
250px, New Naganohara town office 250px, Festival at Kawahara onsen is a town located in Gunma Prefecture, Japan. , the town had an estimated population of 5,495 in 5630 households, and a population density of 41 persons per km². The total area of the town is . The controversial Yanba Dam project is located within Naganohara. Geography Located in the northwestern portion of Gunma Prefecture, almost all of Naganohara has an elevation higher than 500 meters. The town has Mount Kusatsu-Shirane (2171m) to the north and Mount Asama (2568m) to the south. * Rivers: Agatsuma River, Shirasuna River, Kuma River Surrounding municipalities Gunma Prefecture * Takasaki * Higashiagatsuma * Tsumagoi * Nakanojō * Kusatsu Nagano Prefecture * Karuizawa Climate Naganohara has a Humid continental climate (Köppen ''Cfa'') characterized by warm summers and cold winters with heavy snowfall. The average annual temperature in Naganohara is 7.6 °C. The average annual rainfall is 1453&nbs ...
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Agatsuma District, Gunma
is a rural district located in Gunma Prefecture, Japan. As of January 2015, the district had an estimated population of 56,994 and an area of 1,278.55 km2, with a population density of 44.6 people per square kilometer. Towns and villages # former Agatsuma (now part of Higashiagatsuma) # former Azuma (now part of Higashiagatsuma) # Kusatsu # former Kuni (now part of Nakanojō) # Takayama # Tsumagoi # Nakanojō # Naganohara History The area of Agatsuma District was formerly part of Kōzuke Province, and per a census conducted at the start of the Meiji period, consisted of 42 villages administered as ''tenryō'' directly by the Tokugawa shogunate and four towns and 44 villages administered as ''hatamoto''-territory, primarily by the Oguri-clan. With the establishment of the municipality system on April 1, 1889, the area was organized into three towns (Nakanojō, Hara and Naganohara) and ten villages file:Gumma Agatsuma-gun 1889.png, Historic Map of Agatsuma Distri ...
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Agatsuma Line
Agatsuma may refer to: *, Japanese shamisen player *Agatsuma District, Gunma, a district in Gunma Prefecture, Japan *Agatsuma, Gunma, a town in Gunma Prefecture, Japan *Agatsuma River, a river in Japan *Agatsuma Entertainment, a Japanese toy/video game company *Zenitsu Agatsuma, a character from the manga/anime series Kimetsu no Yaiba (Demon Slayer) {{disambiguation, surname Japanese-language surnames ...
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