Charlestown 34, a private dam located in Redwood County, Minnesota, was designed by Duane Hansel, P.E. and completed in 2018 for the primary purpose of flood risk reduction along the Cottonwood River. This buttress-type dam stands at a height of 27 feet, with a maximum storage capacity of 49 acre-feet. The dam's hazard potential is rated as low, and it is currently not assessed for its condition.

Managed by the Minnesota Department of Natural Resources - Emergency Water Resources, Charlestown 34 is state-regulated and regularly inspected to ensure its effectiveness in mitigating flood risks in the area. The dam's location in Sanborn, Minnesota, at coordinates 44.20581058 latitude and -95.15472 longitude, makes it a critical infrastructure in the region's water resource and climate management strategies. With its important role in protecting the local community from potential flooding events, Charlestown 34 serves as a key asset in the overall flood risk reduction efforts in the region.