All oversize loads entering the City of St. Mary, located in Ste. Genevieve County, must conform to the requirements set by the Missouri Department of Transportation.

In general, any vehicle over 12 feet in width, 14 feet in height, and within the Class 1 weight category (less than 120,000 lbs) should obtain an oversize load permit from the St. Mary Public Works Department.

The St. Mary Public Works Department works closely with the Missouri Department of Transportation to ensure that oversize loads are routed through the city safely and efficiently, minimizing disruptions to local traffic and infrastructure.

In St. Mary, escort vehicles are required for loads exceeding 16 feet in width or 18 feet in height. Escort vehicles must be equipped with appropriate warning lights and signage as specified by the Missouri Department of Transportation.

For certain oversize loads, a police escort may be required. The St. Mary Police Department coordinates police escorts, which can be arranged by contacting them at least 48 hours in advance. There is a fee of $150 for police escort services, plus any additional costs for overtime.

To apply for an oversize load permit in St. Mary, companies can visit the Missouri Department of Transportation's online permit portal or contact the St. Mary Public Works Department directly at (573) 965-2222.

Applicants must provide detailed information about the load, including its dimensions, weight, and proposed route through St. Mary. The St. Mary Public Works Department may require additional documentation, such as proof of insurance and a detailed route survey.

Oversize loads are restricted from traveling through St. Mary during peak traffic hours (7-9 am and 4-6 pm, Monday through Friday) unless special permission is granted by the St. Mary Public Works Department.

During periods of heavy rain or flooding, oversize loads may be restricted from traveling on certain routes, such as those that traverse low-lying areas near the Mississippi River.

Certain neighborhoods, including those with narrow streets and historic homes, may be restricted to oversize loads. Alternative routes will be specified by the St. Mary Public Works Department during the permit application process.

The base permit fee for oversize loads in St. Mary is $75. Additional fees may apply based on the size and weight of the load, as well as the complexity of the route.

For example, loads requiring a police escort or specialized routing will incur additional fees, ranging from $100 to $500, depending on the specific requirements.