Peggy McCullough
General Manager, Nuclear Security & Operations

Peggy McCullough

Peggy McCullough is responsible for a portfolio of nuclear security sites and projects executing more than $5 billion in work annually including management and operation of two U.S. national laboratories, two plants, and the Naval Nuclear Laboratory, employing more than 20,000 scientists, engineers, technicians, and other professionals.

Projects within her Nuclear Security and Operations business line are responsible for safely disassembling U.S. nuclear weapons while ensuring the remaining stockpile is safe, secure, and effective. They apply national security science to a broad spectrum of endeavors from basic science to advanced research and development while modernizing aging, Cold War-era infrastructure for the U.S. National Nuclear Security Administration.

Peggy has more than three decades of engineering, procurement, construction, startup and commissioning, and operations experience. She became a Bechtel senior vice president in 2014 and was named general manager of Nuclear Security and Operations in December of 2017.

She joined Bechtel in 1988 and has successfully taken on leadership roles on a number of Bechtel projects covering environmental remediation, demilitarization, nonproliferation and global security.

From 2003 to 2006, Peggy was deputy general manager of Bechtel SAIC, the management and operations contractor on the U.S. Department of Energy’s Yucca Mountain Project. She then served as manager of Functions for the Bechtel division handling government work.  She then served in Australia as project director of the Daunia Coking Coal Project in Queensland where she took the project to greater than 95 percent completion under budget and ahead of schedule.

Most recently, Peggy was project director for the $16.8 billion Waste Treatment and Immobilization Plant at the Department of Energy’s Hanford site in Washington state, the nation’s most complex radioactive waste treatment plant, leading the team that made significant progress toward construction completion and startup of the plant’s first phase.

Peggy holds a bachelor’s degree in electrical engineering from San Francisco State University.