Riggleman Dam, located in Crawford County, Iowa, was completed in 1967 by the USDA NRCS and serves multiple purposes including fire protection, stock, and small fish pond management. This private dam, regulated by the Iowa Department of Natural Resources, stands at a height of 28 feet and has a storage capacity of 60 acre-feet. With its earth construction and soil foundation, Riggleman Dam spans 329 feet in length and covers a surface area of 4 acres, drawing water from the TR-Boyer River.

Despite being classified as having a low hazard potential, Riggleman Dam is considered to have a moderate risk level due to its condition not being rated. The dam's emergency action plan status is unknown, as well as the date of its last inspection. With its uncontrolled spillway type and absence of outlet gates, the dam's risk management measures remain unspecified. As water resource and climate enthusiasts, monitoring the condition and risk assessment of Riggleman Dam is crucial to ensure the safety and sustainability of its surrounding environment and communities.