Twelve Mile Creek Watershed Site D-35 is a crucial water resource located in Union, Iowa, owned and operated by the local government. This site, designed by USDA NRCS, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. Completed in 1988, the earth dam stands at a height of 38 feet and has a storage capacity of 530 acre-feet, with a drainage area of 1.51 square miles.

With a surface area of 20 acres, this low hazard potential dam on Twelve Mile Creek provides essential water management capabilities in the region. Despite not being rated for its condition assessment, the site is state-regulated, inspected, and permitted, ensuring its functionality and safety. Located in WESTERVILLE, Iowa, this dam plays a critical role in protecting the surrounding area from potential flooding and providing water for various purposes.

Managed by the Natural Resources Conservation Service, Twelve Mile Creek Watershed Site D-35 is part of the larger water infrastructure network in the region. With a moderate risk assessment score, this site highlights the importance of sustainable water resource management and climate resilience in the face of changing environmental conditions. Enthusiasts interested in water resources and climate will find this site to be a fascinating example of how infrastructure plays a crucial role in safeguarding communities and ecosystems.