All oversize loads entering the City of Boulder must conform to the requirements set by the Montana Department of Transportation.

In general, any vehicle over 12 feet in width, 14.5 feet in height, and within the Class 3 weight class should obtain an oversize load permit from the Boulder Public Works Department.

Additional specific requirement paragraph: Oversize loads must be escorted by a flag car or pilot car when traveling through downtown Boulder between 7 am and 9 am on weekdays.

Detailed description: Escort vehicles are required in Boulder when the load exceeds 12 feet in width or 14.5 feet in height, or when traveling on restricted routes such as Broadway and Canyon Boulevard.

Information about local police escort requirements: The Boulder Police Department requires a minimum of two hours' notice for scheduling an escort vehicle.

Detailed information: To apply for permits in Boulder, visit the City's Public Works Department website or call (303) 441-4400. A completed application form and required documentation must be submitted at least two weeks prior to the intended movement date.

Information about documentation requirements specific to Boulder: Applicants must provide proof of liability insurance with a minimum coverage of $1 million.

Time-of-day restrictions: Oversize loads are prohibited from traveling on downtown Boulder streets between 10 am and 2 pm on weekdays.

Seasonal or weather-related restrictions: The City of Boulder may impose temporary route closures during heavy snowfall, extreme heat, or high winds.

Restricted routes: Certain roads in Boulder, such as the Boulder Creek Path and the Chautauqua Trail, are closed to oversize loads at all times.

Breakdown of permit fees: The standard permit fee is $50, with an additional $25 for each hour of escort time required. Additional charges apply for special permits, such as those for high-impact loads or restricted routes.

Information about how fees vary by load size, weight, or distance: Larger loads may incur higher fees due to increased infrastructure and public safety requirements.