Jett Subwatershed Site M-1, located in Woodbury County, Iowa, is a local government-owned earth dam completed in 1966 for multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a dam height of 32 feet and a storage capacity of 83 acre-feet, this structure serves the community by providing important water resource management capabilities. The dam is situated on TR-Wolf Creek and covers a drainage area of 0.41 square miles, with a surface area of 3.5 acres.

Managed by the USDA NRCS and regulated by the Iowa DNR, Jett Subwatershed Site M-1 has a low hazard potential and a moderate risk assessment rating. Despite being uncontrolled, the spillway type, the dam has not experienced any issues to date. The structure has not been rated for its condition assessment, and additional information on inspections, emergency action plans, and risk management measures is currently unavailable. The site's proximity to the city of Turin and its function in managing water resources make it a valuable asset for the local community and contribute to the overall climate resilience of the region.