Mark Pestrella is Director of Los Angeles County Public Works. With its diverse operations defined within areas of water resources, transportation, environmental services, construction management and municipal services. With an annual budget of more than $2.7 billion and a workforce of 4,000 employees, LA County Public Works is the largest municipal public works agency in the U.S, providing vital public infrastructure and civic services to more than 10 million people across a 4,000-square-mile service area.

A 35-year veteran of Public Works and a licensed professional engineer, he was inducted into the National Academy of Construction and is a board member of the Institute for Sustainable Infrastructure, the American Society of Civil Engineers Industry Leaders Council and the Southern California Water Coalition. A native of Southern California, Mark earned a B.S. degree in civil engineering from California Polytechnic State University, San Luis Obispo.