Riggleman Dam, located in Crawford, Iowa, was completed in 1998 by the USDA NRCS and serves multiple purposes including fire protection, stock, and small fish pond management. This privately owned earth dam stands at 32 feet tall and stretches 430 feet in length, holding a storage capacity of 120 acre-feet. The dam is situated on the TR-Boyer River, with a low hazard potential and a moderate risk assessment rating.

Managed by the Iowa DNR, Riggleman Dam is regulated and inspected by state authorities to ensure its safety and compliance with regulations. Despite its uncontrolled spillway type, the dam's risk management measures are in place to mitigate any potential risks. The dam's location in a rural area adds to its importance for local water resource management and climate resilience efforts, making it a valuable asset for the community of Deloit and surrounding areas. Enthusiasts of water resources and climate will find Riggleman Dam to be an intriguing structure with a significant impact on the region's water ecosystem.