Potholes in Greater Sudbury / Grand Sudbury, ON

Population 166,004 · Ontario

This page shows pothole reports submitted in Greater Sudbury / Grand Sudbury, Ontario. RoadRot is a free, independent platform — anyone can report a pothole, and reports get forwarded to the responsible municipality.

3
Active
0
Fixed
1
Severe
3
Total reported
View 3 potholes on the map ›

Why Greater Sudbury / Grand Sudbury gets potholes

Greater Sudbury sits deep in Northern Ontario's continental climate zone, which means long, hard winters and the kind of freeze-thaw cycles that chew through asphalt fast. In March 2025 alone, the city recorded 14 freeze-thaw cycles in a single month, and crews applied road salt on 26 out of 31 days. That combination of temperature swings and salt-driven moisture infiltration is exactly what cracks pavement from the inside out, which is why late winter and early spring are reliably the worst seasons to be driving Sudbury streets.

Recent reports

How to report potholes in Greater Sudbury / Grand Sudbury

The City of Greater Sudbury's official reporting system is 311, which you can reach by phone at 311 locally (or 705-671-2489 long distance), through a live chat Monday to Friday from 7:30 a.m. to 6 p.m., or by filing an online service request anytime at 311.greatersudbury.ca. The specific request category to look for is "Potholes, Heaves and Dips" in the customer service portal. RoadRot works alongside that, not instead of it: you drop a pin on the public map, rate the severity, and other drivers can confirm your report to push it up in priority. If you want to apply more pressure, the built-in email-your-rep tool lets you send a message directly to your municipal representative about a specific pothole, though you'll still need to trigger that yourself.
Guides

Hit a pothole in Greater Sudbury / Grand Sudbury and damaged your vehicle? Read the Ontario pothole damage claim guide — deadlines, where to file, and what evidence you need. New to RoadRot? See how to report a pothole.

Common questions

Who is responsible for fixing potholes in Greater Sudbury?

It depends on the road. The City of Greater Sudbury maintains close to 3,700 lane-kilometres of municipal streets, handled through the city's Public Works and Operations division. Provincial highways in the region are maintained by Emcon Services on behalf of the Ontario Ministry of Transportation, covering roughly 1,400 lane-kilometres of provincial roads around the Greater Sudbury area.

Does Greater Sudbury have 311 for pothole complaints?

Yes. You can call 311 locally, reach the long-distance line at 705-671-2489, or submit a request online at 311.greatersudbury.ca anytime. Phone and live chat support runs Monday to Friday from 7:30 a.m. to 6 p.m., but a live operator is available after hours by phone for urgent infrastructure issues.

What's the worst time of year for potholes in Greater Sudbury?

Late winter and early spring, without question. Sudbury's climate means repeated freeze-thaw cycles through late February and March, when water works its way into pavement cracks, freezes, expands, and breaks the road apart. The 2025 season was a documented example of that pattern, with the city's own infrastructure director noting a higher-than-average pothole count.

Can I claim compensation for vehicle damage caused by a pothole in Ontario?

You can file a claim against the municipality under Ontario's Municipal Act if you can show the city had notice of the pothole and failed to repair it within a reasonable time. It's not easy to win, and the bar for "notice" matters a lot, which is part of why public reports on tools like RoadRot can be useful documentation. You should speak with a legal professional if you're pursuing a formal claim.

Does RoadRot automatically send my pothole report to the City of Greater Sudbury?

No, it doesn't. RoadRot is a public crowdsourced map, so when you drop a pin, that report is visible to other drivers and to anyone who wants to see the state of the roads. If you want to contact the city directly, you'll need to use 311 or the online portal separately, or use RoadRot's email-your-rep tool to send a message to your local representative yourself.

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