Located in the Bear Creek Watershed of Winneshiek County, Iowa, Site 23 is a flood risk reduction structure designed by the USDA NRCS and completed in 2000. This earth dam stands at a height of 32 feet and spans 545 feet, with a maximum storage capacity of 46 acre-feet. The primary purpose of this dam is flood risk reduction, serving the community of Quandahl by protecting against potential inundation from TR- North Bear Creek.

Managed by the Iowa DNR, this low hazard potential structure is state-regulated and regularly inspected for safety and compliance. With a drainage area of 0.28 square miles and a surface area of 2.4 acres, Site 23 plays a crucial role in managing water resources in the region. Although the risk assessment is moderate, the dam's condition is not currently rated, and emergency action plans are yet to be fully developed. Nonetheless, with its strategic location and design, this site is a key component in the overall watershed management strategy for the area.

Overall, Bear Creek Watershed Site 23 is an essential piece of infrastructure that contributes to the overall water resource management and climate resilience efforts in Winneshiek County. Through its flood risk reduction capabilities and regulated operation, this structure ensures the safety and protection of the surrounding community, highlighting the importance of sustainable water resource management practices in mitigating the impacts of extreme weather events and climate variability.