Banks Dam, located in Big Sioux River, Plymouth County, Iowa, is a privately owned structure designed by USDA NRCS and completed in 1967. With a height of 35 feet and a length of 559 feet, this earth dam serves multiple purposes including fire protection, stock, and small fish pond. The dam has a storage capacity of 152 acre-feet, with a normal storage of 50 acre-feet and a surface area of 7.3 acres.

Managed by the Iowa Department of Natural Resources, Banks Dam is regulated, permitted, inspected, and enforced by state authorities. The dam has a low hazard potential and a moderate risk assessment rating. Although the condition assessment is currently not rated, the dam meets regulatory guidelines and has not experienced any significant modifications since its completion. With a controlled spillway type and no outlet gates, Banks Dam ensures the safety and stability of the surrounding area while providing valuable water resources for various uses.

Water resource and climate enthusiasts will appreciate Banks Dam for its role in maintaining water supply, supporting wildlife, and protecting against fire hazards in the region. The dam's strategic location along the 1023 TR-Broken Kettle Creek contributes to flood control and water management efforts in the area. As a vital infrastructure for the community, Banks Dam exemplifies the importance of sustainable water resource management and climate resilience in a changing environment.