Bailey's Dam
The 928th tallest dam in the world
Bailey's Dam was a timber dam on the Red River in Alexandria, Louisiana. It was built in 1864 during the Red River Campaign in the American Civil War. It was planned by Lieutenant Colonel Joseph Bailey to afford passage over the Alexandria rapids for part of Rear Admiral David Dixon Porter's Mississippi River Squadron. The dam successfully raised the level of the river and was then breached in order to allow the boats in its reservoir to pass downstream.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).