Turkey Cr Watershed Site 40-2, located in Cass County, Iowa, is a local government-owned earth dam completed in 1969 by the USDA NRCS. The dam, standing at a height of 32 feet and stretching 615 feet in length, serves multiple purposes including fire protection, stock maintenance, and small fish pond creation. With a storage capacity of 50 acre-feet and a drainage area of 0.25 square miles, this structure plays a crucial role in flood risk reduction in the area.

Managed by the Iowa Department of Natural Resources, the Turkey Cr Watershed Site 40-2 has a low hazard potential and a moderate risk rating. Despite being uncontrolled, the spillway type of the dam ensures proper water management during high flow events. Although the condition of the dam has not been rated recently, its historical significance in the region's water resource management cannot be overlooked. With its remote location in Wiota, Iowa, this dam serves as a key asset for the community's water infrastructure and environmental conservation efforts.

For water resource and climate enthusiasts, the Turkey Cr Watershed Site 40-2 represents a harmonious blend of human engineering and natural resource management. As a vital component of the local ecosystem, this dam not only provides essential services like fire protection and flood risk reduction but also creates a habitat for aquatic life. With its strategic location along the Turkey Creek, this structure showcases the importance of sustainable water management practices in safeguarding the environment for future generations.