![Great American Infrastructure: Clearwater County, Idaho: Dworshak Dam](https://www.infrastructureusa.org/wp-content/uploads/2013/05/Screen-shot-2013-05-01-at-11.14.16-AM.png)
This is the twenty-eighth in a series of entries celebrating infrastructure achievements in the United States.
What: The Dworshak Dam, located in Idaho, is the tallest straight-axis concrete dam in the Western Hemisphere.
When: Initial construction began in 1966 & the Dworshak Dam first reached full capacity on July 3, 1973.