Amos Dam, located in Warren County, Iowa, is a privately owned structure designed by the USDA NRCS and regulated by the Iowa DNR. Completed in 1969, this earth dam serves primarily for fire protection, stock, or small fish pond purposes. With a height of 29 feet and a length of 434 feet, Amos Dam has a storage capacity of 49 acre-feet and covers a surface area of 3.9 acres. The dam is situated on the TR-OTTER CREEK, near the RED ROCK RESERVOIR, under the jurisdiction of the Kansas City District.

Despite its low hazard potential, Amos Dam is subject to regular state inspection, permitting, and enforcement to ensure its structural integrity and compliance with safety regulations. The dam features an uncontrolled spillway type and a soil foundation, with a moderate risk assessment rating. While the condition assessment is currently not rated, the dam is considered to meet guidelines for emergency action plans. Amos Dam represents an essential water resource infrastructure in the region, contributing to water management and conservation efforts.

Enthusiasts of water resources and climate will find Amos Dam an intriguing structure that plays a vital role in the local ecosystem and water supply management. As part of the larger network of dams in the area, Amos Dam demonstrates the intersection of human engineering with environmental conservation, highlighting the importance of sustainable water resource management practices. Its location near the Red Rock Reservoir and the Otter Creek adds to its significance as a key element in the region's hydrological system.