Shihgang Dam

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Coordinates: 24°16′58.3″N120°46′08.3″E / 24.282861°N 120.768972°E / 24.282861; 120.768972

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Shihgang Dam
Shih Gang Earthquake 3.JPG
Official name 石岡壩
Location Shigang District / Dongshi District of Taichung, Taiwan
Purpose flood control, water storage, regulation, recreation
Status In use
Construction began 1974
Opening date 1977
Operator(s) Ministry of Economic Affairs
Dam and spillways
Type of dam Gravity Dam
Impounds Dajia River
Height 25 m (82 ft)
Length 352 m (1,155 ft)
Dam volume 141,300 m3 (4,990,000 cu ft)
Spillway type 15 controlled drum-gate
Spillway capacity 13,000 m3/s (460,000 cu ft/s)
Reservoir
Total capacity 3,380,000 m3 (119,000,000 cu ft)
Active capacity 1,430,000 m3 (50,000,000 cu ft)
Catchment area 1,061 km2 (410 sq mi)
Surface area 0.645 km2 (0.249 sq mi)
Normal elevation 267 ft (81 m)
Website
Central Region Water Resources Office, Water Resources Agency, Ministry of Economic Affairs - SHIGANG DAM

Shihgang Dam (Chinese :石岡壩; pinyin :Shígāng Bà) is a concrete gravity barrage dam across the Dajia River in Shigang District and Dongshi District of Taichung, Taiwan, located near Fengyuan District. The dam was built from 1974 to 1977 for flood control and irrigation purposes, and stands 35.2 m (115 ft) high and 357 m (1,171 ft) long, holding a reservoir with an original capacity of 3,380,000 m3 (2,740 acre⋅ft). [1]

Chinese language family of languages

Chinese is a group of related, but in many cases not mutually intelligible, language varieties, forming the Sinitic branch of the Sino-Tibetan language family. Chinese is spoken by the Han majority and many minority ethnic groups in China. About 1.2 billion people speak some form of Chinese as their first language.

Hanyu Pinyin, often abbreviated to pinyin, is the official romanization system for Standard Chinese in mainland China and to some extent in Taiwan. It is often used to teach Standard Mandarin Chinese, which is normally written using Chinese characters. The system includes four diacritics denoting tones. Pinyin without tone marks is used to spell Chinese names and words in languages written with the Latin alphabet, and also in certain computer input methods to enter Chinese characters.

Barrage (dam) type of dam

A barrage is a type of low-head, diversion dam which consists of a number of large gates that can be opened or closed to control the amount of water passing through. This allows the structure to regulate and stabilize river water elevation upstream for use in irrigation and other systems. The gates are set between flanking piers which are responsible for supporting the water load of the pool created. The term barrage is borrowed from the French word "barrer" meaning "to bar".

The dam was heavily damaged in the 921 earthquake of 1999, which caused the collapse of its northern end. Subsequently, an embankment cofferdam was built to prevent water from flowing through the breach, while the collapsed section has been retained as a memorial. Since this reduces the storage capacity of the dam, it is no longer used for flood control, but remains an important source of agricultural water.

Farm water water committed for use in the production of food and fiber

Farm water, also known as agricultural water, is water committed for use in the production of food and fiber. On average, 80 percent of the fresh water withdrawn from rivers and groundwater is used to produce food and other agricultural products. Farm water may include water used in the irrigation of crops or the watering of livestock.

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References

  1. Reservoirs and Weirs in Taiwan (in Chinese). Taiwan Water Resources Agency, Ministry of Public Affairs. p. 328.