J. D. Dam, located in Coconino, Arizona, is a Federal-owned structure managed by the Forest Service with a primary purpose of serving as a Fish and Wildlife Pond. Built in 1915, this Earth-type dam stands at a height of 21 feet and has a maximum storage capacity of 70 acre-feet. It sits on J D Dam Wash near Sycamore Creek, providing vital water resources for fire protection, livestock, recreation, and aquatic habitats.

With a low hazard potential and moderate risk assessment, J. D. Dam plays a crucial role in managing water resources in the region. The dam's uncontrolled spillway and rock foundations contribute to its structural integrity, while its proximity to Cottonwood ensures easy access for monitoring and maintenance. Despite its age, J. D. Dam continues to support the surrounding ecosystem and serves as a testament to early water management efforts in Arizona.

As a key feature in the Los Angeles District's water infrastructure, J. D. Dam undergoes regular inspections and is well-maintained by the Forest Service. With a focus on fish and wildlife conservation, this historic dam stands as a reminder of the importance of sustainable water resource management in the face of climate change and increasing water demands.