Located in Monona, Iowa, the Reed Subwatershed Sta 45+25 #4 is a locally owned earth dam completed in 1966 by the USDA NRCS with a primary purpose of fire protection, stock, or small fish pond. This low hazard potential dam on TR-McMaster Creek has a height of 51 feet, a length of 302 feet, and a drainage area of 0.38 square miles. With a normal storage capacity of 78 acre-feet and a maximum storage capacity of 105 acre-feet, the dam serves multiple purposes including flood risk reduction.

Maintained by the Iowa Department of Natural Resources, the Reed Subwatershed Sta 45+25 #4 dam is equipped with an uncontrolled spillway and is regularly inspected for safety and compliance. The risk assessment for this dam is categorized as moderate, indicating a potential need for risk management measures in the future. Despite its age, the dam's condition assessment is currently not rated, suggesting a need for further evaluation and maintenance to ensure its continued effectiveness in protecting the surrounding area from flood risks and providing essential water resources for the community.

Overall, the Reed Subwatershed Sta 45+25 #4 dam plays a crucial role in water resource management and climate resilience efforts in the Ticonic region. With its strategic location and design, this dam serves as a vital infrastructure for fire protection, stock maintenance, and small fish pond management, while also helping to mitigate flood risks in the area. As climate change continues to impact water resources, the proper maintenance and monitoring of dams like this one will be essential to ensure the safety and sustainability of communities in the face of evolving environmental challenges.