Diamond Lake Watershed Site B-8 in Poweshiek County, Iowa, is a significant dam with a primary purpose of fire protection, stock, or small fish pond. Constructed in 1971 by the USDA NRCS, this earth dam stands at a height of 27 feet and has a length of 438 feet, with a storage capacity of 45 acre-feet. The dam serves multiple purposes including flood risk reduction, benefiting the local community and ecosystem.

Located in Montezuma, Iowa, this dam on TR-Moon Creek is regulated by the Iowa DNR and is inspected, permitted, and enforced by the state authorities. With a significant hazard potential and a moderate risk rating, it is crucial to ensure the safety and maintenance of this structure. While the condition assessment is not rated, the dam continues to play a vital role in water resource management in the region.

The Diamond Lake Watershed Site B-8 underscores the importance of sustainable water resource management and climate resilience. As a key infrastructure for fire protection, stock, and small fish pond, this dam not only supports local needs but also contributes to flood risk reduction. With proper regulation, inspection, and maintenance, this dam continues to serve its purpose effectively while addressing the challenges posed by climate change in the region.