Sharp Dam, located in Arion, Iowa, is a private earth dam completed in 1945 for fire protection, stock, and small fish pond purposes. Standing at 28 feet high and 350 feet long, it has a storage capacity of 24 acre-feet and covers a surface area of 2.4 acres. The dam is situated on the TR-Boyer River, within Crawford County, Iowa, and falls under the jurisdiction of the Iowa Department of Natural Resources for permitting, inspection, and enforcement.

Despite being classified as having a low hazard potential, Sharp Dam has a moderate risk rating of 3, indicating the need for careful monitoring and risk management. While the dam's condition assessment is currently listed as "Not Rated," its last inspection dates back to June 1978, suggesting a potential need for updated evaluations and maintenance. With its uncontrolled spillway type and lack of outlet gates, the dam poses specific challenges that may require further attention to ensure its continued safety and functionality for the surrounding community and environment.

For water resource and climate enthusiasts, Sharp Dam serves as a notable feature within the Rock Island District of Iowa, offering insights into the intersection of human infrastructure and natural water systems. With its historical significance and ongoing regulatory oversight by the Iowa DNR, the dam presents an opportunity for study and engagement in the context of water resource management and climate resilience efforts in the region.