Terrill Dam, located in Louisa County, Iowa, is a private earth dam completed in 2000 by the NRCS for fire protection and as a stock or small fish pond. With a height of 31 feet and a length of 178 feet, the dam has a storage capacity of 71 acre-feet and serves a drainage area of 0.55 square miles. Situated on TR- Whiskey Run along the Mississippi River, Terrill Dam is regulated by the Iowa DNR and undergoes regular inspections, with a low hazard potential and a moderate risk assessment.

Despite its modest size, Terrill Dam plays a crucial role in water resource management in the region, providing storage for firefighting efforts and supporting local wildlife. The dam's location in a rural area highlights its importance for maintaining water quality and supporting ecological diversity. While not currently rated for its condition, Terrill Dam's construction and management reflect a commitment to sustainability and responsible water use, showcasing the essential role of private infrastructure in climate resilience and natural resource protection.

As climate change continues to impact water resources and ecosystems, Terrill Dam stands as a testament to the importance of small-scale infrastructure in mitigating risks and adapting to changing conditions. With its earth construction and soil foundation, the dam exemplifies a practical solution for local water management needs. By adhering to regulatory standards, undergoing regular inspections, and maintaining a low hazard potential, Terrill Dam sets a positive example for private dam owners in safeguarding water resources and enhancing climate resilience in the face of environmental challenges.