Yuma Proving Ground names longtime employee Donnett Brown as public works director

Yuma Proving Ground handed its public works shop to a manager who has spent 18 years learning the post from the inside, putting Donnett Brown in charge of the roads, utilities, buildings and other systems that keep the Army’s desert test site functioning.

Brown, who started at YPG in 2008 as an Environmental Protection Specialist, was named director of the Directorate of Public Works, the office responsible for sustaining, restoring and modernizing installation facilities and infrastructure. That means Brown now has oversight of the day-to-day work behind reliable air conditioning, utility service, road maintenance and the other basics that let the garrison, tenant units and families on post operate without interruption.

At YPG, those decisions carry outsized weight. The installation covers 837,969 acres, or about 1,309 square miles, and is the Department of Defense’s fourth-largest installation by land area. It also sits under 11 components of restricted airspace totaling 1,981 square miles. Brown described the role as effectively running a small city inside the City of Yuma, a comparison that fits the scale of the place and the number of systems that have to work every day.

The promotion also keeps institutional knowledge at a post that is central to the Yuma County economy. YPG is the county’s top civilian employer, with more than 2,000 civilian personnel, and a 2017 state-commissioned study estimated its annual direct, indirect and induced economic impact at more than $1.1 billion. Decisions made in DPW ripple beyond the fence line, shaping local contracting, jobs and the reliability of the infrastructure that supports Army testing.

Brown’s path to the job was long in the making. A Marine Corps veteran, she earned a bachelor’s degree in chemical engineering and two master’s degrees, one in management and one in public administration, while stationed in Okinawa. Her career at YPG also included environmental cleanup and site remediation work, experience that fits the department’s continuing compliance responsibilities under state and federal environmental rules.

Brown said becoming DPW director had been a long-term goal and that she did not fully appreciate the scope of the department until she stepped into it. She has said one priority is supporting her staff and making sure they have the resources to do the work well. She has also urged students and younger workers to think strategically about education, starting with community college if needed and finding mentors who can show them a path forward.

The appointment comes as YPG continues its role as the Army’s premier test center, where developmental testing touches nearly every piece of equipment in the ground combat arsenal. The post also hosts Project Convergence and manages test operations beyond Arizona, including Fort Greely, Alaska, and locations in Central and South America. For Yuma, keeping DPW steady is not just an internal personnel change; it is a matter of keeping one of the region’s most important federal installations ready to work.