Arrowrock Dam may not seem like an engineering marvel, but it was the tallest dam in the world at one time. It didn’t hold that distinction for long. At 348, 350, or 351 feet—different writers used different rulers, apparently—it held that title from 1915 until 1932 when the Owyhee Dam in Oregon knocked it off its pedestal by about 50 feet.
The postcard below trumpeted the dam’s status by calling it the “highest dam.” I don’t know what dam would be the highest in the world, since “highest” refers to elevation. In Idaho the dam at the highest elevation would probably be Palisades Dam. Anyway, they meant tallest.
Arrowrock doesn’t even make the Wikipedia list of tall dams today. The tallest on that list is the Jinping Dam in China, at 1,001 feet.
The postcard below trumpeted the dam’s status by calling it the “highest dam.” I don’t know what dam would be the highest in the world, since “highest” refers to elevation. In Idaho the dam at the highest elevation would probably be Palisades Dam. Anyway, they meant tallest.
Arrowrock doesn’t even make the Wikipedia list of tall dams today. The tallest on that list is the Jinping Dam in China, at 1,001 feet.