Reed Subwatershed Site 1-1, located in Monona County, Iowa, is a flood risk reduction structure constructed in 1990 by the USDA NRCS. This earth dam stands at 33 feet in height and spans 598 feet in length, with a storage capacity of 109 acre-feet. The dam serves multiple purposes beyond flood risk reduction, including fire protection, stock pond, and small fish pond.

Managed by the Iowa DNR, Reed Subwatershed Site 1-1 is equipped with an uncontrolled spillway and has been assessed to have a low hazard potential. Despite not being rated for condition assessment, the structure is maintained to meet state regulatory standards, with regular inspections conducted to ensure its functionality. With a moderate risk assessment score of 3, this site plays a crucial role in managing water resources and mitigating potential risks in the area.

Enthusiasts of water resources and climate will find Reed Subwatershed Site 1-1 to be a significant asset in the region, showcasing innovative engineering for flood risk reduction and water management. With its strategic location along the TR-McMaster Creek, this structure not only provides essential protection against flooding but also supports ecosystem health and sustainability. As a key component of the local government's water infrastructure, this site exemplifies the importance of proactive measures in addressing climate-related challenges and safeguarding the community's well-being.