Billingsley #2 is a privately owned dam located in Congress, Arizona, along Martinez Creek. Built in 1946, this earth dam serves multiple purposes including fire protection, stock watering, small fish pond, fish and wildlife habitat, and irrigation. With a primary height of 22 feet and a storage capacity of 243.8 acre-feet, this structure plays a significant role in supporting the local ecosystem and water needs.

Managed by the Arizona Department of Water Resources, Billingsley #2 is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. Despite being rated as having a low hazard potential, the dam is considered to have a moderate risk level, indicating the need for ongoing risk assessment and management measures. The dam's inspection frequency is every 5 years, with the last inspection conducted in February 2010.

With its strategic location in Yavapai County and its contribution to the region's water resources, Billingsley #2 stands as a vital infrastructure for both wildlife conservation and water supply management. Its presence along Martinez Creek underscores the importance of maintaining and monitoring such structures to safeguard against potential risks and ensure sustainable water management practices in the area.