Neustrom Subwatershed Site M-1, located in Woodbury County, Iowa, is a water resource management site designed by the USDA NRCS. This site serves multiple purposes including fire protection, stock watering, and small fish pond management, as well as flood risk reduction. The earth dam at this site was completed in 1971 and stands at a height of 30 feet, with a storage capacity of 126 acre-feet and a drainage area of 0.44 square miles.

The dam at Neustrom Subwatershed Site M-1 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. The spillway type is uncontrolled, and the site has a moderate risk factor of 3. While the last inspection date and frequency are not provided in the data, the site is regulated by the Iowa DNR and has state permitting, inspection, and enforcement in place. Overall, Neustrom Subwatershed Site M-1 plays a crucial role in water resource management and climate resilience efforts in the region, highlighting the importance of sustainable infrastructure development in the face of changing environmental conditions.