The Uryu Dam (雨竜ダム) is a dam complex in Hokkaidō, Japan on the Uryu River. It consists of two dams. It is a power generation dam managed by Hokkaido Electric Power Co., Inc., and is a gravity-type concrete dam with a bank height of 45.5 meters. Lake Shumarinai, which is an artificial lake, is more famous than a dam, but this lake is the largest artificial lake in Japan with a flooded area (the area of a dam lake). This record has not yet been broken since it was completed in 1943 (Showa 18) during the war.

This article may be expanded with text translated from the corresponding article in Japanese. (December 2008) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:雨竜第一ダム]]; see its history for attribution. You should also add the template {{Translated|ja|雨竜第一ダム}} to the talk page. For more guidance, see Wikipedia:Translation.

Uryu Dam
Uryu Dam No.2
Location	Hokkaidō, Japan.
Coordinates	44.3006°N 142.182°E / 44.3006; 142.182
Construction began	1939
Opening date	1943
Dam and spillways
Impounds	Uryu River
Height	45.5 m
Length	216 m
Reservoir
Total capacity	224,653,000 m³
Catchment area	368.5 km²
Surface area	2,373 hectares

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