Amos, located in Hulett, Wyoming, is a privately owned irrigation structure with a primary purpose of providing water for irrigation and water supply. This Earth dam, completed in 1914, stands at a height of 11 feet and has a hydraulic height of 6 feet. With a storage capacity of 2439 acre-feet and a normal storage of 558 acre-feet, Amos plays a crucial role in supporting agricultural activities in the area.

Despite being categorized as having a low hazard potential, Amos is subject to state regulation, inspection, and enforcement measures to ensure its continued safety and functionality. Its fair condition assessment as of April 2021 indicates that maintenance and monitoring efforts are ongoing to secure its long-term stability. With a history dating back over a century, Amos stands as a testament to the importance of water resource management in sustaining local communities and ecosystems in Wyoming.

As an essential component of the water infrastructure in Campbell County, Amos serves as a vital resource for the region's agricultural activities. With its strategic location and design, this dam not only supports irrigation needs but also contributes to the overall water supply of the area. As climate change impacts water resources, structures like Amos will play a crucial role in ensuring the reliable availability of water for both current and future generations.