De Hart Dam, located in Van Buren County, Iowa, along the TR-DES MOINES RIVER, was completed in 1966 by the USDA NRCS. This private dam serves multiple purposes, including fire protection and providing a small fish pond. With a height of 25 feet and a length of 250 feet, it has a storage capacity of 55 acre-feet and covers a surface area of 3.4 acres. The dam is classified as an Earth dam with a low hazard potential and moderate risk assessment.

Managed by the Iowa DNR, De Hart Dam is state-regulated and regularly inspected to ensure its safety and functionality. It is designed to serve the local community's needs while also protecting the surrounding environment. Despite being uncontrolled, the spillway of the dam is designed to handle potential overflow efficiently. The dam's location in Vernon, Iowa, provides essential water resources for the area and contributes to the overall management of the TR-DES MOINES RIVER watershed.

De Hart Dam stands as a vital infrastructure for water resource management in the region, demonstrating a commitment to sustainable water use and environmental protection. With its long history of service and continuous monitoring, the dam plays a crucial role in maintaining water quality, supporting local wildlife, and mitigating potential flood risks. As a focal point for water enthusiasts and climate advocates, De Hart Dam showcases the importance of responsible dam construction and maintenance in ensuring the resilience of water resources in Iowa.