Parnell Creek Subwatershed Site M-8, located in Woodbury County, Iowa, is a dam constructed in 1968 with a primary purpose of fire protection, stock, or small fish pond. The dam, owned by the local government and regulated by the Iowa Department of Natural Resources, has a maximum storage capacity of 86 acre-feet and covers a surface area of 5.6 acres. With a low hazard potential and a moderate risk assessment rating, this Earth-type dam serves as a crucial infrastructure for flood risk reduction in the area.

Managed by the Natural Resources Conservation Service, the Parnell Creek Subwatershed Site M-8 plays a significant role in water resource management in the region. The dam, situated along the TR-Parnell Creek, provides essential protection against potential flooding while also serving as a valuable resource for fire protection and aquatic life support. With state permitting, inspection, and enforcement in place, the dam ensures the safety and sustainability of the surrounding environment.

As a key feature in the local water infrastructure, the Parnell Creek Subwatershed Site M-8 represents a harmonious balance between human needs and environmental conservation. With its strategic location and purposeful design, this dam exemplifies the importance of responsible water resource management and climate resilience in mitigating natural disasters and promoting sustainable development.