フーバーダム – Hoover Dam


今日からまた先週のグランドキャニオン旅行について書きます。その初日に、グランドキャニオンの側のフーバーダムについて書いておきましょう。I will start writing from today about my trip to the Grand Canyon last week. The first topic is Hoover Dam to the west of the Grand Canyon.

まず、ミード湖について。このダムの建設にあたって作られた貯水池ですが、大きさも貯水量も半端でなく、日本にあるすべてのダムの貯水量を合計した2倍近くあるんです。The picture above is Lake Meed which is the reservoir created by Hoover Dam. Its size is huge, and the capacity is nearly double the total capacity of all the dams in Japan. Wow!

もう一つの面白い発見は、フーバーダム渓谷にかかる橋コロラドリバー橋は、日本の大林組が請け負い完成させています。Another finding was that Oobayashi corporation from Japan was involved in building the Colorado River Bridge over the Hoover Canyon.

そしてアメリカ最長のアーチ型の橋となりました。日本人の私としては、ちょっと嬉しい発見です。It is now the longest arch bridge in the US. This finding made me proud, since I am Japanese.

ダムの上から下を除くと、流石に怖い。建設中に100人近い作業員が死亡したとの事です。多くの犠牲の上に完成した貴重なダムなんですね。Looking down from the top of the dam was quite scary. I’ve read that nearly 100 workers died during the construction. Hoover Dam was built based on many people’s sacrifices.

貯水量は巨大なんですが、降水量があまりないので、ここ何十年もの間満杯になったことはないそうです。放水中の光景は巨大な滝のように豪快なことでしょう。Although the capacity of Lake Mead is huge, it hasn’t been full for many years due to less precipitation in the southwest. I imagine that it will be even more grand when they can again discharge water over the spillways making a huge waterfall.

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