Rocklin Municipal Code 8.04.020 requires trees and bushes to be trimmed so branches clear sidewalks by 8 feet and streets by 14 feet, and prohibits limbs obstructing or encroaching on public rights-of-way. Removing or substantially pruning any oak tree with a 6-inch trunk diameter (measured 4.5 ft above root crown) requires a free Oak Tree Removal Permit under Chapter 17.77; heritage oaks (24 inches DBH) carry stronger mitigation.
Right-of-way clearance: keep branches at least 8 feet above sidewalks and 14 feet above streets for vehicle, bike, and pedestrian safety (RMC 8.04.020). Vegetation adjacent to driveways must stay below 30 inches to preserve sight distance. For oak trees: RMC Chapter 17.77 (Oak Tree Preservation) defines a protected oak as a native species with a trunk diameter at breast height (DBH) of 6 inches or more, and a heritage oak as 24 inches DBH or larger measured at 4.5 feet above the root crown. A free permit from the Planning Division is required before removal or major pruning. Mitigation: two 5-gallon native oaks per removed healthy oak, or five 5-gallon native oaks per heritage oak (or in-lieu fee). Dead/dying trees require certified arborist verification but no mitigation. Multi-family, commercial and industrial properties have additional review.
Failure to maintain clearance is a public nuisance under RMC 8.04 subject to abatement and lien. Unpermitted oak tree removal is a misdemeanor under RMC 17.77 and triggers mitigation plantings or in-lieu fees at the heritage ratio.
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