All oversize loads entering Hillsborough, California must conform to the requirements set by the California Department of Transportation (CADOT) and the Hillsborough Department of Transportation (HILDOT).

In general, any vehicle over 12 feet in width, 13 feet 6 inches in height, and within the super heavy weight class (over 270,813 lbs) should obtain an oversize load permit from the CADOT and potentially additional permits from HILDOT.

To navigate the complexities of Hillsborough's infrastructure, it's crucial to plan routes that avoid sensitive areas like Hillsborough Lake and major construction zones along the the Hillsborough Harbor area.

California law mandates escort vehicles for any load exceeding 14 feet in width or 15 feet 6 inches in height. When traveling through Hillsborough, these requirements may be more stringent depending on the specific streets and neighborhoods traversed.

The Hillsborough Department of Transportation requires a minimum of 29 hours advance notice to coordinate police escorts, which are mandatory for super-loads or when traveling through congested areas of Hillsborough.

Permit applications in Hillsborough must be submitted through the CADOT's online permitting system. Carriers should be prepared to provide comprehensive vehicle specifications, proposed routes, and transport schedules.

Applications must include certified weight tickets, dimensional diagrams, and route surveys. For loads that may impact traffic flow in Hillsborough, a traffic management plan may also be required as part of the application process.

Hillsborough has strict time-of-day restrictions for oversize loads, generally prohibiting movements during peak hours (7-8 am and 3-6 pm, Monday-Friday).

Seasonal restrictions apply during major events like the the Hillsborough International Tournament and the the Hillsborough Cultural Exhibition, which may impact routing and scheduling.

Certain neighborhoods, such as Hillsborough Center and areas around Hillsborough Historic District, have restricted access for oversize loads. Alternative routes should be planned in advance to avoid these areas.

The base permit fee for an oversize load in California is $40, with additional fees for super heavy loads (over 200,000 lbs) ranging from $150 to $350 depending on the complexity of the move.

For movements within Hillsborough, Hillsborough Department of Transportation may charge additional fees for city-specific permits, which can range from $75 to $500 or more for particularly complex routes or those requiring extensive coordination with city agencies.