The annual pothole repair program is an essential part of keeping traffic moving safely and efficiently through the city. Roads crews fill between 10,000 and 14,000 potholes per year.
How Potholes Form
- Water seeps through cracks in pavement and softens the roads base, collects, then freezes.
- When the water freezes, it expands and forces the pavement up. Traffic further stresses the pavement.
- The sun dries up the water, leaving a hole under the pavement.
- With no base, the pavement is weakened and collapses under the weight of traffic.
- A pothole is formed where the pavement collapsed. Wear from additional traffic expands the hole.