All oversize loads entering the City of Troy, Latah County, must conform to the requirements set by the Idaho Department of Transportation.

In general, any vehicle over 12 feet in width, 14 feet 6 inches in height, and within the heavy haul weight class (over 105,500 lbs) should obtain an oversize load permit from the Troy Public Works Department.

The City of Troy requires that all oversize loads be routed through the city in a manner that minimizes disruption to local traffic and avoids damage to city infrastructure.

Escort vehicles are required for loads exceeding 16 feet in width or 18 feet in height on highways within Troy city limits.

For loads over 20 feet in width or 25 feet in height, a police escort is mandatory and must be arranged through the Latah County Sheriff's Office at least 48 hours in advance.

To apply for an oversize load permit in Troy, applicants must submit their request through the Idaho Department of Transportation's online permit portal or by contacting the Troy Public Works Department directly.

Applicants must provide detailed documentation, including route plans, load dimensions, and weight certificates.

Oversize loads are restricted from traveling through Troy during peak hours (7-9 am and 4-6 pm, Monday-Friday).

Seasonal restrictions may apply during heavy snowfall or flooding events, as determined by the Troy Public Works Department.

Loads are prohibited from using residential streets, including but not limited to Main Street and Elm Street, unless specifically approved by the Troy City Council.

The base permit fee for oversize loads in Troy is $50, with additional fees ranging from $25 to $100 based on the complexity of the route and the size of the load.

For loads requiring a police escort, an additional fee of $150 per hour is charged, with a minimum of 2 hours.