Salmon Creek Dam, Alaska - Credit: Wikimedia Commons
Salmon Creek Dam, Alaska - Credit: Wikimedia Commons
The Salmon Creek Dam is a concrete arch dam on the Salmon Creek, northwest of Juneau, Alaska. Built in 1914, it is the world's first constant-angle arch variable radius dam. Since it was built, over 100 such dams have been constructed all over the world. The dam was designated as a National Historic Civil Engineering Landmark by the American Society of Civil Engineers in 2022. Read more on Wikipedia
Source: en.wikipedia.org