Located in Monona County, Iowa, the Mc Call Subwatershed Site M-2 is a vital water resource managed by the local government for multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. Built in 1963 by the USDA NRCS, this earth dam stands at a height of 47 feet and has a storage capacity of 293 acre-feet, serving a drainage area of 1.34 square miles along the Gard Creek.

With a surface area of 14.6 acres, the Mc Call Subwatershed Site M-2 is regulated by the Iowa Department of Natural Resources and is classified as having a low hazard potential. The site has not been rated for its condition assessment, but the risk assessment indicates a moderate risk level. While no specific risk management measures have been listed, the dam is inspected and maintained by local authorities to ensure its operational integrity and safety for the surrounding community.

Although there are no associated structures or outlet gates, the Mc Call Subwatershed Site M-2 plays a crucial role in water management and environmental protection in the region. As climate change continues to impact water resources, the site stands as a testament to the importance of sustainable infrastructure and proactive risk management in safeguarding communities against potential hazards.