All oversize loads entering the City of Tonasket must conform to the requirements set by the Washington Department of Transportation and Okanogan County regulations.

In general, any vehicle exceeding 8 feet 6 inches in width, 14 feet in height, or a gross vehicle weight exceeding 80,000 pounds should obtain an oversize load permit from the Tonasket Public Works Department.

Specifically, loads traversing State Route 20 within city limits require careful consideration due to bridge weight restrictions and potential seasonal closures. Contact the Public Works Department to confirm bridge load capacity and available routes.

Escort vehicles are typically required in Tonasket when loads exceed 12 feet in width, 15 feet in height, or 100 feet in length. The specific number of escorts depends on the dimensions and route.

Local police escorts are mandatory for loads exceeding 14 feet in width or those requiring temporary lane closures on State Route 20. Requests for police escorts should be submitted to the Okanogan County Sheriff's Office at least 72 hours in advance, and fees are determined based on the duration and complexity of the escort. Contact them directly at (509) 422-7200 for scheduling and cost details.

Permit applications for oversize loads in Tonasket can be obtained from the Tonasket Public Works Department located at 209 S Whitcomb Ave, Tonasket, WA 98855. You can also download the application from the Okanogan County website under the Public Works section, although submitting it requires a physical visit or mail. For initial inquiries, call (509) 486-2132.

Documentation requirements include a detailed route plan highlighting specific turns and potential obstructions, vehicle registration, insurance information, and a comprehensive description of the load, including dimensions and weight. For loads originating outside of Washington state, proof of compliance with IRP (International Registration Plan) and IFTA (International Fuel Tax Agreement) is required.

Time-of-day restrictions are in effect during peak traffic hours, generally between 7:00 AM and 9:00 AM and 4:00 PM and 6:00 PM on weekdays. Movement of oversize loads is typically prohibited during these times to minimize congestion.

Seasonal restrictions may apply during winter months (November through March) due to snow and ice conditions, particularly on State Route 20 and other mountainous routes. Check with the Tonasket Public Works Department and WSDOT for current road closures and advisories.

Oversize loads are restricted from using the downtown area of Tonasket, specifically Whitcomb Avenue between 10th Street and 2nd Street, due to narrow streets and pedestrian traffic. Alternate routes must be planned and approved during the permit application process.

Permit fees in Tonasket are determined by the size and weight of the load, as well as the distance traveled within city limits. Fees are also influenced by the use of state highways. There is a minimum base fee, plus additional charges based on dimensions and weight. Contact the Tonasket Public Works Department for a specific quote.

Fees increase significantly for loads requiring police escorts or those necessitating temporary road closures. All fees must be paid before the permit is issued.