Repairing cracks in asphalt freeways and highways is a typical and necessary maintenance. Asphalt develops small cracks naturally over time. The sooner cracks can be patched and sealed the better. If cracks are left open, or are not thoroughly sealed, water can penetrate into the asphalt and beneath it. This water can gradually erode or destroy the asphalt and its foundation, forming a pothole over time. Repairing cracks when they’re small prevents more severe and costly damage, preventing freeway closures with removal and replacement.