Located in Eau Claire, Wisconsin, the Johnson dam, also known as the Diamond Valley Watershed, plays a crucial role in flood risk reduction along the Diamond Valley Creek. Constructed in 1978 by the USDA NRCS, this earth dam stands at 18 feet in height and spans 800 feet in length, with a storage capacity of 150 acre-feet. Despite its low hazard potential, the dam is regularly inspected by the WIDNR to ensure its fair condition and moderate risk assessment are maintained.

The Johnson dam, owned and regulated by the local government, showcases the collaborative effort between state and federal agencies in managing water resources for the community of Augusta. With a spillway width of 68 feet and a maximum discharge of 100 cfs, the dam serves as a crucial infrastructure for mitigating flood risks in the region. The dam's state-regulated status, along with its enforcement and inspection protocols, emphasize the commitment to ensuring public safety and environmental protection in the area.

For water resource and climate enthusiasts, Johnson dam stands as a testament to effective flood risk reduction infrastructure in Wisconsin. As part of the Natural Resources Conservation Service's portfolio, the dam's design and construction reflect a dedication to sustainable water management practices. With its moderate risk assessment and fair condition, the Johnson dam serves as a vital asset in safeguarding the Diamond Valley Creek watershed and surrounding communities from potential flooding events.