All oversize loads entering the City of Irwin, located in Westmoreland County, must conform to the requirements set by the Pennsylvania Department of Transportation (PennDOT).

In general, any vehicle over 12 feet in width, 14 feet 6 inches in height, and within the Class 3 weight category (over 120,000 lbs) should obtain an oversize load permit from the Irwin Public Works Department.

Irwin, being part of Westmoreland County, adheres to the state regulations but also requires coordination with local authorities to ensure compliance with municipal ordinances and to minimize disruptions to local traffic and infrastructure.

In Irwin, escort vehicles are required for oversize loads exceeding 16 feet in width or 15 feet in height. Escort vehicles must be equipped with proper signage and warning lights as per PennDOT regulations.

For oversize loads that require a police escort, arrangements must be made through the Irwin Police Department or the Westmoreland County Police Department, depending on the route. Fees for police escorts vary based on the duration of the escort and the number of officers required.

To apply for an oversize load permit in Irwin, applicants must submit their application through the PennDOT's online permitting system or contact the Irwin Public Works Department directly. Required documentation includes detailed load specifications, proposed route, and travel dates.

Irwin requires a minimum of 7 business days' advance notice for permit applications to ensure timely processing and approval.

Irwin has time-of-day restrictions for oversize loads; typically, they are not allowed to travel during peak hours (7-9 AM and 4-6 PM) on weekdays.

Seasonal restrictions may apply during heavy snowfall or flooding events, as directed by the Irwin Public Works Department or PennDOT.

Certain routes through Irwin are restricted for oversize loads, particularly those that pass through historic districts or areas with low clearance bridges. Applicants must ensure their proposed route is compliant with local regulations.

The standard permit fee for oversize loads in Irwin is $75, with additional fees based on the complexity of the route and the size of the load. For example, loads exceeding 18 feet in width or 100 tons in weight incur an additional $50 fee.

Fees are payable upon permit issuance and can be paid online or at the Irwin Public Works Department office.