Twelve Mile Creek Watershed Site 68-1, located in Union County, Iowa, is a vital water resource managed by the local government for fire protection, stock, and small fish pond purposes. This Earth-type dam, designed by USDA NRCS and completed in 1979, stands at 28 feet tall and spans 400 feet, with a maximum storage capacity of 79 acre-feet. The dam serves to reduce flood risks in the area while also providing recreational and environmental benefits.

Owned and regulated by the Iowa Department of Natural Resources, this dam on Twelve Mile Creek is classified as having a low hazard potential with a moderate risk assessment. Despite not being rated for condition assessment, the structure meets state permitting, inspection, and enforcement requirements, ensuring its continued functionality and safety. With a drainage area of 0.34 square miles and a surface area of 5.2 acres, this site plays a crucial role in water management and conservation efforts in the region.

Situated in the Rock Island District, Twelve Mile Creek Watershed Site 68-1 is a significant component of the local water infrastructure, contributing to the overall environmental and economic well-being of the area. As water resource and climate enthusiasts, understanding the importance of sites like these in maintaining a sustainable and resilient watershed system is essential for future conservation and management strategies.