Shigang Dam () is a concrete gravity barrage dam across the

Dajia River Dajia River () is the fifth-longest river in Taiwan located in the north-central of the island. It flows through Taichung City for 142 km. The sources of the Dajia are: Hsuehshan and Nanhu Mountain in the Central Mountain Range. The Dajia ...

in Shigang District and

Dongshi District Dongshi District (; Pha̍k-fa-sṳ: Tûng-sṳ) is a suburban district (Republic of China), district in eastern Taichung, Republic of China (Taiwan). It is the third largest district by area in Taichung City after Heping District, Taichung, Hepi ...

Taichung Taichung (, Wade–Giles: '), officially Taichung City, is a special municipality (Taiwan), special municipality in central Taiwan. Taichung is Taiwan's second-largest city, with more than 2.85 million residents, making it the largest city in Ce ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

, located near

Fengyuan District Fengyuan District () is a District (Taiwan), district in north-central Taichung, Taiwan on the south bank of the Dajia River. Fengyuan district is the third most populated district in the former Taichung County, after Dali and Taiping district. ...

. The dam was built from 1974 to 1977 for flood control and irrigation purposes, and stands high and long, holding a reservoir with an original capacity of . The dam was badly damaged in the

921 earthquake The Chi-Chi earthquake (later also known as the Jiji earthquake, 921 Earthquake, or the great earthquake of September 21), was a 7.3 ML or 7.7 Mw earthquake which occurred in Jiji (Chi-Chi), Nantou County, Taiwan on 21 September 199 ...

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. Shih Gang Earthquake

References

1977 establishments in Taiwan Dams in Taichung Dams completed in 1977 Dam failures in Asia Gravity dams 1999 Jiji earthquake Man-made disasters in Taiwan {{taiwan-dam-stub

See also

References