Pleasant Valley No. 8, also known as S. Girtler Detention, is a private earth dam located in Winona, Minnesota. Designed by the USDA NRCS and completed in 1968, this structure serves the primary purpose of flood risk reduction along the Pleasant Valley Creek. With a dam height of 35 feet and a storage capacity of 50 acre-feet, it plays a crucial role in managing water flow and mitigating potential flooding in the area.

The dam, with a significant hazard potential, features an uncontrolled spillway and outlet gates. While it is not currently rated for condition assessment, it is noted as having a moderate risk level. Despite its importance in flood control, the dam has not been inspected recently and lacks an emergency action plan. Its location in a high-risk area underscores the need for regular monitoring and maintenance to ensure its effectiveness in protecting the surrounding community from potential water-related hazards.

Water resource and climate enthusiasts should take note of Pleasant Valley No. 8 as a key infrastructure for flood risk reduction in the region. Its history, design, and current risk assessment provide valuable insights into the challenges and responsibilities associated with managing water resources in a changing climate. As efforts continue to address the potential impacts of extreme weather events, structures like this dam will play a crucial role in safeguarding communities and natural habitats against the threats of flooding.