Located in Harrison County, Iowa, the Mill Picayune Watershed Site S-8-1 is a crucial resource managed by the local government for fire protection, stock, and small fish pond purposes. Built in 1985 by the USDA NRCS, this earth dam stands at a height of 30 feet and spans a length of 575 feet, with a storage capacity of 150 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam is not currently rated for its condition, and its emergency action plan status remains unknown.

Situated along the TR-Picayune Creek, this watershed site plays a vital role in flood risk reduction for the surrounding area. The dam's uncontrolled spillway and soil foundation support its function in managing water flow and storage, contributing to the overall water resource management efforts in the region. With state regulation and permitting in place, as well as regular inspections and enforcement by the Iowa DNR, the Mill Picayune Watershed Site S-8-1 ensures the safety and sustainability of its operations for the community of Woodbine.

As a part of the broader water infrastructure network in Iowa, this site exemplifies the collaborative efforts between government agencies and designers to address various water resource needs. With its strategic location, purposeful design, and ongoing monitoring, the Mill Picayune Watershed Site S-8-1 serves as a valuable asset for both water supply and environmental resilience in the region, showcasing the intersection of water management and climate adaptation strategies in action.