Betty Beaman is a privately owned dam located in Adair, Iowa, along a tributary to Middle River. Constructed in 2014 by the USDA NRCS, this Earth dam stands at a height of 32 feet and spans a length of 498 feet, providing grade stabilization as its primary purpose. With a storage capacity of 136 acre-feet and a surface area of 8 acres, Betty Beaman also serves recreational and water supply purposes in the region.

Managed by the Iowa Department of Natural Resources, Betty Beaman is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. With a low hazard potential and a condition assessment yet to be rated, the dam holds a normal storage capacity of 57 acre-feet and can discharge a maximum of 78 cubic feet per second through its spillway. Despite its modest size, Betty Beaman plays a crucial role in flood control and water management within the area.

Located in a scenic landscape and under the representation of Congresswoman Cindy Axne, Betty Beaman contributes to the environmental and recreational well-being of the community. With its strategic placement and purposeful design, this dam stands as a testament to the collaborative efforts between private owners, government agencies, and environmental enthusiasts in preserving water resources and adapting to the challenges of a changing climate.