Hubbard is a federal-owned irrigation dam located in Nampa, Idaho, with a primary purpose of providing water for agricultural irrigation. Completed in 1902, this earth dam stands at a height of 23 feet and has a storage capacity of 4060 acre-feet. It is regulated by the Bureau of Reclamation and falls under the jurisdiction of the Idaho Department of Water Resources, with regular inspections and enforcement to ensure its safety and functionality.

Situated on Mason Creek, a tributary of the Boise River and Snake River, Hubbard Dam plays a crucial role in water management for the surrounding area. With a low hazard potential and a condition assessment that is currently not available, the dam is equipped with spillways for excess water discharge and operates under the supervision of the Bureau of Reclamation. Although it has not undergone any modifications in recent years, Hubbard Dam remains a key infrastructure for sustaining agriculture and water resource management in Ada County, Idaho.

Overall, Hubbard Dam serves as a vital component of the water infrastructure in Idaho, ensuring a reliable water supply for irrigation purposes. With its long history and continued operation under federal oversight, this earth dam stands as a testament to efficient water management practices and the importance of maintaining critical infrastructure for sustainable agriculture and resource conservation in the region.