Diane Langley served as Principal Engineer for Yuba City for the last 18 months. Previously, she served as Senior En-gineer for the city of Grass Valley and worked prior to that for the city of Yuba City for nine years. She has a total of 12 years of experience in the public sector working for local government. Langley is a registered Civil Engineer, has a degree in Civil Engineering, and a certificate in Construction Management.