Herring Dam, located in Red Rock Reservoir, Iowa, serves multiple purposes including fire protection, stock, and small fish pond. The dam, completed in 1987, is primarily owned and regulated by a private entity, with oversight from the Iowa Department of Natural Resources. The dam is classified as an earth dam with a height of 28 feet and a length of 328 feet, providing a storage capacity of 63 acre-feet.

Despite being categorized as having a low hazard potential, the dam is deemed to have a moderate risk level, indicating the need for ongoing monitoring and risk management measures. The dam's condition is currently labeled as "Not Rated," with no recent inspection data available. The spillway is uncontrolled, with no outlet gates or locks present. The surrounding area consists of a drainage area of 0.33 square miles and a surface area of 3 acres.

Water resource and climate enthusiasts interested in the Herring Dam will find it a notable structure for its multiple functions and design characteristics. As a privately owned and state-regulated facility, the dam represents a collaborative effort in water management and conservation. With its location in a scenic area near the Wolf Hollow stream, the dam provides important services while also posing moderate risk factors that require ongoing attention and mitigation strategies.