Possehl Dam, located in Monroe County, Iowa, was completed in 1989 and serves multiple purposes including fire protection, stock, and small fish pond management. Owned privately, the dam is regulated by the Iowa Department of Natural Resources and is inspected and enforced by state authorities. Designed by the USDA NRCS, the earth dam stands at a height of 33 feet and spans 255 feet in length, with a storage capacity of 35 acre-feet and a surface area of 1 acre.

The dam, situated on TR- Middle Avery Creek, plays a crucial role in water resource management in the region, with a low hazard potential and a moderate risk assessment rating. Although the dam is not rated for its condition, it meets state regulatory standards and is regularly inspected for safety and maintenance. The Natural Resources Conservation Service contributed to the design of the dam, which is primarily used for agricultural and environmental purposes, reflecting a commitment to sustainable water resource management practices in the area.

With a controlled spillway type and uncontrolled spillway width, Possehl Dam ensures the efficient management of water flow and storage, contributing to the overall ecological health of the region. The dam's location in a rural setting underscores its importance in providing essential water resources for local agricultural activities and wildlife habitats. As a significant infrastructure project in Iowa, the dam exemplifies the intersection of climate resilience, water conservation, and agricultural sustainability in the region.