Calgary Roads: The spring thaw opens up potholes around Calgary

The spring thaw opens up potholes around Calgary and we want to know where they are.

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Enter your pothole location and details by clicking here.

Report a pothole to the City of Calgary 311.

How potholes form

Water penetrates asphalt and freezes to destroy roads

Canada's recent cold snaps have caused freezing water to buckle roads that were smooth only a few weeks ago.

The interactive below shows how rainwater gets under the surface of a road, heaves upward when the temperature drops, and leaves the asphalt shattered when the temperature rises once more.