A multipurpose dam on the Columbia River in eastern Washington State in the northwestern United States. Continuing drought in this region forced pioneers to leave their land. As a result, surveys of irrigation were conducted starting in 1904, and in 1932 the Columbia River Comprehensive Development Plan was drawn up, including the construction of large dams for flood control, irrigation, and power generation. Construction of the Grand Coulee Dam began in 1934. The Columbia River has the largest hydroelectric potential in the United States, and the plan called for the utilization of 92% of it. This dam was important in developing 27% of that potential, and was the largest generating facility in the world at the time. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
アメリカ北西部,ワシントン州東部のコロンビア川にある多目的ダム。この地域では干ばつが続き,開拓者たちは土地を離れざるをえなかった。このため,灌漑についての調査が1904年から行われ,32年には洪水調節,灌漑,発電用の大ダム建設を含むコロンビア川総合開発計画が定められて34年グランド・クーリー・ダムの建設が始まった。コロンビア川はアメリカ最大の包蔵水力をもち,計画ではその92%を利用することにし,このダムはその27%を開発する重要なもので,当時は世界最大の発電規模であった。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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