Agate Dam, also known as A-18, is a federal-owned structure located in White City, Oregon. Built in 1965 by the Bureau of Reclamation, this rockfill dam stands at a height of 77 feet and serves primarily for irrigation purposes in the region. With a storage capacity of 5700 acre-feet and a normal storage level of 4780 acre-feet, Agate Dam plays a crucial role in managing water resources for agriculture in the area.

Situated on Dry Creek, Antelope Creek, and other water bodies, Agate Dam covers a surface area of 216 acres and has a drainage area of 10 square miles. The dam's maximum discharge capacity is 3530 cubic feet per second, ensuring effective flood control measures in times of heavy rainfall. Despite its high hazard potential, the condition assessment of Agate Dam is currently not available, highlighting the importance of regular inspections and risk management measures to ensure the safety and functionality of this vital water infrastructure.

Managed and operated by the Bureau of Reclamation, Agate Dam stands as a testament to the agency's commitment to water resource management and irrigation development in the region. With its strategic location and significant storage capacity, Agate Dam continues to play a crucial role in supporting agricultural activities and water supply for the local community. As climate change impacts water availability and distribution, structures like Agate Dam will be essential for sustainable water management practices in the face of evolving environmental challenges.