Sasamagawa Dam
Encyclopedia
The is a dam
on the Sasama River, a tributary of the Ōi River
, located on the border of the city of Shimada
and the town of Kawanehon
, Shizuoka Prefecture
on the island of Honshū
, Japan
.
company, the was established, and began studies and design work on plans to exploit the potential of the Ōi River and Fuji River
in Shizuoka Prefecture. The British interests were bought out by 1921, and the company was renamed . By the mid-1950s, numerous dams had been constructed on the main flow of the Ōi River, and developers began to turn their attention to its various tributary streams
.
The Sasamagawa Dam and neighboring Shiogo Dam
were constructed to provide water for the 58,000 KW Kawaguchi Hydroelectric Plant built by the Shimada city government. Construction work began in 1955 and was completed by 1960 by the Hazama Corporation. The dam serves a secondary purpose in providing water for irrigation to farms in the surrounding area.
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
on the Sasama River, a tributary of the Ōi River
Oi 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...
, located on the border of the city of Shimada
Shimada, Shizuoka
is a city in Shizuoka Prefecture, Japan. As of February 2010, the city has an estimated population of 100,846 and a population density of 319 persons per km². The total area is 315.88 km².-Geography:...
and the town of Kawanehon
Kawanehon, Shizuoka
is a town located in Haibara District, Shizuoka, Japan. As of February 2010, the town has an estimated population of 8,253 and a density of 16.8persons per km². The total area was 496.72 km².-Geography:...
, Shizuoka Prefecture
Shizuoka Prefecture
is a prefecture of Japan located in the Chūbu region on Honshu island. The capital is the city of Shizuoka.- History :Shizuoka prefecture was formed from the former Tōtōmi, Suruga and Izu provinces.The area was the home of the first Tokugawa Shogun...
on the island of Honshū
Honshu
is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...
, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
History
The potential of the Ōi River valley for hydroelectric power development was realized by the Meiji government at the start of the 20th century. The Ōi 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. In 1906, a joint ventureJoint venture
A joint venture is a business agreement in which parties agree to develop, for a finite time, a new entity and new assets by contributing equity. They exercise control over the enterprise and consequently share revenues, expenses and assets...
company, the was established, and began studies and design work on plans to exploit the potential of the Ōi River and Fuji River
Fuji River
The is a river in Yamanashi and Shizuoka Prefectures of central Japan. It is long and has a watershed of . With the Mogami River and the Kuma River, it is regarded as one of the three most rapid flows of Japan....
in Shizuoka Prefecture. The British interests were bought out by 1921, and the company was renamed . By the mid-1950s, numerous dams had been constructed on the main flow of the Ōi River, and developers began to turn their attention to its various tributary streams
Tributary
A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...
.
The Sasamagawa Dam and neighboring Shiogo Dam
Shiogō Dam
The is a dam on the main stream of the Ōi River, located in the town of Kawanehon, Haibara District, Shizuoka Prefecture on the island of Honshū, Japan.-History:...
were constructed to provide water for the 58,000 KW Kawaguchi Hydroelectric Plant built by the Shimada city government. Construction work began in 1955 and was completed by 1960 by the Hazama Corporation. The dam serves a secondary purpose in providing water for irrigation to farms in the surrounding area.