Railroad Tank Dam, located in Coconino, Arizona, is a significant water resource structure with a primary purpose of serving as a fire protection, stock, or small fish pond. Built in 1900 by the Atchison, Topeka, and Santa Fe Railway Company, this earth dam stands at a height of 37 feet and spans a length of 1000 feet. With a storage capacity of 250 acre-feet and a normal storage level of 165 acre-feet, the dam plays a crucial role in managing water resources for the surrounding area.

Managed by the Forest Service, Railroad Tank Dam is used for various purposes including flood risk reduction and fish and wildlife habitat enhancement. The dam's spillway, with a width of 10 feet, is designed as uncontrolled, and the structure has a high hazard potential due to its location near Brannigan Park. Despite its age, the condition of the dam is currently not rated, and it undergoes regular inspections to ensure its safety and functionality. With a moderate risk assessment score of 3, Railroad Tank Dam remains an integral part of the water infrastructure in the region and a key player in water resource management and conservation efforts.

As an essential water resource structure in Arizona, Railroad Tank Dam serves as a vital component in the local ecosystem, providing water for firefighting, livestock, and recreational purposes. With its historical significance and critical role in flood control and wildlife conservation, the dam stands as a testament to the importance of sustainable water management practices in the face of climate change and increasing water demands. As climate enthusiasts and water resource advocates, it is imperative to recognize the value of structures like Railroad Tank Dam in preserving and protecting our precious water resources for future generations.