The Blue Earth County Board of Commissioners in southern Minnesota voted to tear down the Rapidan Dam near Mankato and replace the County Road 9 Bridge due to concerns about their structural integrity following heavy rains. The dam and bridge were at risk of collapsing, prompting a federal emergency declaration. Flooding in June and July caused the river to forge a new channel around the dam and led to damage to the bridge’s supporting piers. This has raised concerns about the impact on the local farming community, as the bridge closure will affect transportation for the fall harvest.
The rebuilding process is expected to take years and will likely be costly, although the exact amount is currently unknown. Local officials are working to secure funding from state and federal sources for the repairs. The Federal Emergency Management Agency and the Federal Energy Regulatory Commission are also involved in the planning process. In addition to concerns about safety and economic impacts, officials are also considering the potential impact on recreation opportunities and the environment in the area.
The Rapidan Dam, built in 1910, has been damaged by multiple floods in recent years and has not been generating electricity. The situation in Blue Earth County reflects a broader issue in the U.S., where many dams are in poor condition and in need of inspection, upgrades, and repairs to ensure public safety and protect the environment. The county’s plans to address the dam and bridge issues highlight the challenges and costs associated with maintaining aging infrastructure across the country.
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