Hertz Dam, located in Maxwell, Iowa, is a privately owned earth dam designed by the USDA NRCS and completed in 1959. The dam serves multiple purposes, including fire protection and creating a small fish pond. With a height of 32 feet and a length of 327 feet, Hertz Dam has a storage capacity of 82 acre-feet and covers a surface area of 6 acres.

Managed by the Iowa DNR, Hertz Dam is regulated, inspected, and enforced by the state, ensuring its safety and compliance with regulations. Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk, highlighting the importance of ongoing monitoring and risk management measures. With its location on TR-East Indian Creek, Hertz Dam plays a crucial role in water resource management and climate resilience efforts in the area.

Overall, Hertz Dam stands as a vital infrastructure for fire protection, stock, and recreational purposes in Story County, Iowa. Its history, design, and regulation showcase the intersection of water resource management, climate adaptation, and public safety in the region.