Read : Jouriou shikkiarch dam
Also known as Concrete Arch Gravity Dam, CAGD
Abbreviation : Japanese style "GA" (English: Arch-Gravity Dam)
*In the world formula, gravity arch, hollow gravity, and curved gravity dams are also described as "PG" as well as gravity dams.
A gravity arch dam is a dam that has the advantages of both gravity and arch concrete dams. The advantages are that it does not require a strong bedrock as in the case of an arch dam, and it does not require a large amount of concrete as in the case of a gravity concrete dam.
According to the Japan Dam Association, there are only 12 of this rare type in Japan.
▲1405-Takayama Dam (Kyoto Prefecture)
▲0505-Otori Dam (Fukushima Prefecture)
▲0944-Washi Dam/Washi Dam (Fukui Prefecture)
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