West Fork Big Creek Watershed Site B-46 in Iowa, managed by the USDA NRCS, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. The earth dam, completed in 1992, stands at 26 feet tall and spans 440 feet in length, with a storage capacity of 147 acre-feet. The reservoir covers 6.3 acres and drains an area of 0.51 square miles, providing essential water resource management in the region.

Located in Ringgold County, Iowa, this site is regulated and inspected by the Iowa DNR, ensuring its safety and functionality. With a low hazard potential and a moderate risk assessment rating, the dam is a critical piece of infrastructure for the area. Despite not being currently rated for condition assessment, the West Fork Big Creek Watershed Site B-46 remains a key asset for water resource management and climate resilience in the region.

The dam's uncontrolled spillway and soil foundation contribute to its structural integrity, while its purposeful design and construction by the USDA NRCS reflect a commitment to sustainable water management practices. As climate change impacts become more pronounced, this site will continue to play a crucial role in mitigating flood risks and providing essential water storage for agricultural and environmental needs in the West Fork Big Creek watershed.