All oversize loads entering Arbon Valley, located in Cassia 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 pounds) should obtain an oversize load permit from the Arbon Valley Public Works Department.

Arbon Valley requires compliance with Idaho's oversize load regulations, and loads exceeding these dimensions or weights must be routed through designated corridors to minimize disruptions to local traffic and infrastructure.

Escort vehicles are required in Arbon Valley for loads exceeding 16 feet in width, 18 feet in height, or 150 feet in length. The escort must be provided by a certified pilot car company registered with the Idaho Transportation Department.

For loads that require a police escort, arrangements must be made through the Cassia County Sheriff's Office at least 48 hours in advance. Fees for police escorts are determined by the Sheriff's Office and can vary based on the complexity of the route and the number of officers required.

To apply for an oversize load permit in Arbon Valley, companies must submit their application through the Idaho Department of Transportation's online permitting system or by contacting the Arbon Valley Public Works Department directly.

Applicants must provide detailed information about the load, including its dimensions, weight, and proposed route through Arbon Valley. Documentation requirements include proof of insurance and a route survey for particularly complex or oversized loads.

Arbon Valley has time-of-day restrictions for oversize loads; they are generally not permitted to travel during peak hours (7-9 am and 4-6 pm) on weekdays.

Seasonal restrictions may apply during periods of heavy snowfall or when road conditions are deemed hazardous by the Cassia County Road Department.

Certain routes through Arbon Valley are restricted for oversize loads, including those through residential neighborhoods and areas with low clearance bridges or narrow roadways.

The base permit fee for oversize loads in Arbon Valley is $50. Additional fees are applied based on the size and weight of the load, as well as the complexity of the route.

For example, loads requiring a police escort incur an additional fee of $200, plus $100 for each additional officer required. Route survey fees range from $100 to $500, depending on the extent of the survey needed.