Bull Creek #4 is a private irrigation dam located in Mesa, Colorado, with a primary purpose of providing water for agricultural use. Built in 1901, this earth dam stands at 32 feet high and has a storage capacity of 611 acre-feet. The dam, managed by Water Resource Consultants LLC, is regulated by the Colorado Department of Water Resources and undergoes regular inspection and enforcement to ensure its safety and functionality.

With a high hazard potential and fair condition assessment, Bull Creek #4 poses a moderate risk, prompting the need for emergency action preparedness. The dam features an uncontrolled spillway and a single slide gate outlet, allowing for a maximum discharge of 4200 cubic feet per second. Despite its age, the dam continues to serve its purpose effectively, providing irrigation water for the surrounding agricultural lands while also offering recreational opportunities in the area.

As an integral part of the Bull Creek watershed, Bull Creek #4 plays a crucial role in managing water resources in the region. With its historical significance and continued functionality, this dam serves as a testament to the importance of maintaining and regulating water infrastructure to ensure a sustainable and resilient water supply for both agricultural and recreational purposes.