Boulder Flood Basin is a private water resource structure located in Yavapai, Arizona, along Copper Creek. Built in 1983, this Earth-type dam stands at a height of 45 feet and stretches 480 feet in length, providing a maximum storage capacity of 154 acre-feet. Despite its low hazard potential, the dam serves a crucial purpose in flood control, with a maximum discharge capacity of 1140 cubic feet per second.

Managed by the Arizona Department of Water Resources, Boulder Flood Basin is regulated, inspected, and permitted by state authorities to ensure its structural integrity and operational efficiency. The dam's spillway, with a width of 135 feet, is uncontrolled, and the structure is designed to handle moderate risk levels. Although the condition assessment is currently not rated, regular inspections are conducted every five years to monitor its safety and functionality.

As a significant component of water resource management in the region, Boulder Flood Basin plays a vital role in mitigating flood risks and protecting the local community from potential water-related disasters. With its strategic location and operational capabilities, this dam stands as a testament to the collaborative efforts between private owners and state agencies to safeguard water resources and ensure climate resilience in Arizona's landscape.