Lake Nukabira

This artificial lake is located in Kamishihoro Town, under the jurisdiction of the Tokachi Regional Development Bureau in central Hokkaido. It was created by damming the Otofuke River, a tributary of the Tokachi River, with the Nukabira Dam. Construction of the dam began in 1952 (Showa 27) for the purpose of developing power sources, and it is a gravity concrete dam with a height of 76 meters and a crest length of 290 meters. It has a reservoir area of ​​8.2 square kilometers and a usable storage capacity of 160 million tons, making it the second largest dam in Hokkaido after the Uryu Dam, and an underground waterway leads the water to the Nukabira Power Station (maximum output 42,000 kilowatts), 3 kilometers southeast. It is part of the Daisetsuzan National Park, and the lake shoreline, which is over 30 kilometers in circumference, is surrounded by mountains covered in virgin forests. Fishing and boating are available, and there are facilities such as a national campground. To the west of the southwest coast is Nukabira Onsen, which serves as a base for skiing, mountain climbing, and sightseeing.

[Jiro Okamoto]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

北海道中央部、十勝(とかち)総合振興局管内の上士幌町(かみしほろちょう)にある人造湖。十勝川支流の音更川(おとふけがわ)を糠平ダムによってせき止めたもの。ダムは電源開発を目的に1952年（昭和27）着工、1956年完成した重力式コンクリートダムで、高さ76メートル、堤頂長290メートル。湛水(たんすい)面積8.2平方キロメートル、有効貯水量1億6000トン、道内では雨竜(うりゅう)ダムに次ぐ容量をもち、地下水路で南東3キロメートルの糠平発電所（最大出力4万2000キロワット）に導かれる。大雪山(たいせつざん)国立公園に含まれ、周囲30キロメートルを超える湖岸は原生林に覆われた山々に囲まれ、釣り、ボートが楽しめ、国設野営場などの施設がある。南西岸西方には糠平温泉があり、スキー、登山、観光の基地ともなっている。

［岡本次郎］

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