Posted in Web What happened to Minnesota’s Rapidan Dam? Here’s … – ABC News June 26, 2024 Construction of the Rapidan dam was finished in 1910 and is described by the county as a hollow concrete dam, founded on sandstone bedrock in a steep, U-shaped valley. The dam is approximately 475 … https://abcnews.go.com/US/wireStory/happened-minnesotas-rapidan-dam-flooding-partial-failure-111424184