Dane Ridge Watershed Site C-2-1 is a significant water management site located in Crawford, Iowa, designed by USDA NRCS. This earth dam, completed in 1971, serves multiple purposes including fire protection, stock, or small fish pond, flood risk reduction, and recreation. With a dam height of 45 feet and a storage capacity of 113 acre-feet, this site covers a surface area of 4 acres and drains a 0.58 square mile watershed.

Managed by the Iowa Department of Natural Resources, this site is state-regulated and inspected for compliance and enforcement. Situated along the TR-BOYER river, this low-hazard structure poses a moderate risk. Despite not being rated for its current condition, the site meets guidelines and is equipped with emergency preparedness measures. With its location in the Rock Island District, Dane Ridge Watershed Site C-2-1 is crucial for water resource management and ensuring the safety and sustainability of the surrounding environment.