The Rapidan Dam is a concrete gravity dam located on the Blue Earth River in Rapidan Township southwest of Mankato, Minnesota in the United States. The dam was constructed from 1908 to 1910 to generate hydroelectric power.

Removal of the Rapidan Dam could cost from $59 million to $75 million, according to an estimate by Barr Engineering in August. Surveying and mapping at the dam is set to take place throughout 2025 ...

Jun 27, 2024 · This combination of satellite images provided by MaxarTechnologies shows views of the Rapidan Dam on Minnesota’s Blue Earth River, south of Mankato, on Sept. 6, 2011, top, and bottom on June 26, 2024, after floodwaters overcame parts of …

Facts about the Rapidan Dam. Structure. Amburson type hollow reinforced concrete; Constructed: 1908 - 1910; One fatality; Height from top of dam to stream bed: 87 feet; Length: 475 feet; Spillways: 5 steel tainter gaits and 2 timber gates; Generators (not functional following 2020 flooding) Two turbines powered by falling water - 600 cubic feet ...

Jan 23, 2025 · What we know: The governor unveiled the 2025 infrastructure plan at 12:30 p.m. on Thursday in the Mankato area at the site of the Rapidan Dam that was destroyed during flooding in 2024.

Jun 24, 2024 · Rapidan Dam near Mankato was in “imminent failure condition,” The Blue Earth County government announced in a Monday Facebook post.

Jun 24, 2024 · RAPIDAN, Minn. — Authorities feared Monday that an aging hydroelectric dam on the Blue Earth River in southern Minnesota, under immense pressure from days of torrential rain and floating debris...

The Rapidan Dam was built over 100 years ago and has been managed by Blue Earth County for the last 46 years. Throughout the years, the dam has experienced regular flooding—the second-highest flood on record occurring as recently as 2019.

Jun 25, 2024 · As of Tuesday morning, the dam southwest of Mankato remained intact — but was bypassed on its west side by a new river channel the rushing water carved out on Monday. Authorities said it...

Jun 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...