Arrowrock Dam

Arrowrock Dam - Credit: Wikimedia Commons

Arrowrock Dam is a concrete arch dam in the western United States, on the Boise River in southwestern Idaho, east of Boise. Opened in 1915, it is located on the border of Boise and Elmore counties, upstream of the Lucky Peak Dam and reservoir. The spillway elevation for Arrowrock is above sea level and its primary purpose is to provide irrigation water for agriculture. Read more on Wikipedia

type: dam
date from: 1915

Source: en.wikipedia.org