An Encroachment Permit is required for any work within a Placer County maintained highway easement, or right-of-way.
Grading is subject to Placer County Code, Chapter 15, "Grading, Erosion and Sediment Control Ordinance," which addresses when a permit is required, and when grading is exempt from permit requirements.
Placer County has the discretionary authority to issue permits for the movement of vehicles/loads exceeding statutory limitations on the length, width, height, and weight of vehicles as contained in Division 15 of the California Vehicle Code.