Littlefield Silt Control Dam, located in Audubon, Iowa, is a vital structure managed by the local government to regulate the flow of the TR-Littlefield Lake. Completed in 1987, this earth dam stands at a height of 15 feet and spans 600 feet in length, with a storage capacity of 98 acre-feet. Its primary purpose is to control silt and sediment runoff, with a low hazard potential and a moderate risk assessment rating.

The dam is under the jurisdiction of the Iowa Department of Natural Resources and is subject to state regulations, permitting, inspection, and enforcement. Despite not being rated for its condition assessment, the Littlefield Silt Control Dam plays a crucial role in managing water resources in the area, with a surface area of 1.3 acres and a drainage area of 2.94 square miles. Its uncontrolled spillway ensures controlled release of excess water, contributing to the overall safety and efficiency of the structure.

With its strategic location in Atlantic, Iowa, the Littlefield Silt Control Dam serves as a key component in the local water management system, providing both environmental and flood control benefits. Enthusiasts of water resources and climate will appreciate the significance of this structure in safeguarding the surrounding ecosystem and ensuring sustainable water management practices in the region.