Helmers Dam, located in Osceola County, Iowa, is a private earth dam constructed in 1974 by the USDA NRCS for purposes of fire protection, stock, or as a small fish pond. With a height of 30 feet and a length of 480 feet, the dam has a storage capacity of 49 acre-feet and covers a surface area of 3.7 acres. Situated on the TR-OCHEYDAN River, the dam is regulated and permitted by the Iowa Department of Natural Resources, ensuring its safety and compliance with state regulations.

Despite being classified as having a low hazard potential, Helmers Dam is considered to have a moderate risk level. The dam does not have an official condition assessment rating, and its emergency action plan (EAP) status is currently unknown. With no recent inspection data available, the dam is subject to regular state enforcement and inspection to ensure its structural integrity and functionality in case of emergency. As a vital resource for water management in the region, Helmers Dam plays a crucial role in providing fire protection and supporting local stock and fish populations.

Water resource and climate enthusiasts interested in the management and maintenance of dams will find Helmers Dam to be a fascinating case study. With its unique design and purpose, this private earth dam serves as a critical infrastructure for the community of May City, Iowa. As efforts continue to monitor and assess the dam's condition, it remains an essential asset for water resource management and environmental conservation in the region.