What causes potholes in pavements during the spring?
Potholes occur as the result of melting ice and snow. The melting water drains through the cracks in the pavement that are created by traffic and ground movement from the frost. As the temperatures begin freezing at night, the water becomes ice and expands under the pavement, forcing the pavement to lift. As traffic continues to drive over this section of road and temperatures rise above freezing, a shallow divot occurs under the road and the pavement breaks. A pothole is formed as a result.
