Angran Dam, located in Ottumwa, Iowa, is a privately owned earth dam designed by NRCS with a primary purpose of grade stabilization. Completed in 2001, this dam stands at a height of 33 feet and stretches 245 feet in length, with a storage capacity of 16 acre-feet. Positioned on TR- SOUTH AVERY CREEK, the dam serves a critical function in managing water resources in the area, with a low hazard potential and a moderate risk assessment rating.

Despite being privately owned, Angran Dam does not fall under state regulation, inspection, or enforcement, highlighting its unique status in the area. With no associated structures and no outlet gates, the dam's uncontrolled spillway type and soil foundation further demonstrate its design for grade stabilization purposes. While the dam's condition assessment is listed as "Not Rated," its risk assessment indicates a moderate level of risk, prompting the need for ongoing risk management measures to ensure the safety and integrity of the structure for both water resource and climate enthusiasts alike.