Located in Woodbury County, Iowa, the Bacon Creek Watershed Site A-2-4 is a local government-owned structure designed by the USDA NRCS for flood risk reduction along the TR-Bacon Creek. Completed in 1979, this earth dam stands at a height of 51 feet, with a length of 568 feet and a drainage area of 2.22 square miles. With a storage capacity of 1474 acre-feet and a surface area of 34 acres, the dam serves multiple purposes including fire protection, stock or small fish pond, and flood risk reduction.

The Bacon Creek Watershed Site A-2-4 has been inspected regularly, with the last assessment conducted in August 2020, revealing a satisfactory condition. The dam has a high hazard potential, prompting a moderate risk assessment of level 3. Although the spillway type is uncontrolled with a width of 3 feet, the structure has been deemed to meet regulatory standards enforced by the Iowa Department of Natural Resources. With its strategic location in Sioux City and crucial role in mitigating flood risks, this watershed site serves as a vital component of water resource management in the region, appealing to climate and water resource enthusiasts alike.