Ontario's Reduced Load regulations

The Ontario Ministry of Transportation’s Reduced Load Period comes into effect each spring. The start date of the restrictions varies and depends on weather conditions.

In conjunction with these regulations, every spring during the thaw, municipal Heavy Load Restrictions are put into effect within the limits of the City of Thunder Bay to protect our roads from damage. We announce the start date in a Media Release - see the City's homepage for an index of Releases.

Some roads are exempt

Some roads in Thunder Bay are exempt from these restrictions. View our Heavy Load Restriction Exemptions Listing or our Map of Streets Exempt from Heavy Load Restrictions. We appreciate your cooperation.

If you require a PDF in an accessible format, contact our Municipal Accessibility Specialist .

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