Crack Sealing of asphalt roadways is the process of applying hot rubberized sealant material to developing cracks to prevent water intrusion. This process will extend the useful life of the asphalt, as the water intrusion is a significant factor in the degradation of the asphalt road surface. The benefits of the rubberized sealant is that it stays flexible with the asphalt pavement’s movement, thereby extending the life of the pavement. In addition, when non-compressible matter gets into the cracks, it will cause problems when the asphalt normally expands and contracts. The best time of year to apply the crack seal treatment is in the spring or fall. This is the time of year that cracks are not completely open, nor are they contracted completely closed.
Q: Can I request that the road which brings me to my home be scheduled for crack sealing treatments?
A: The Streets and Roads Dept utilizes a service study that provides a Pavement Condition Index (PCI) for specific, targeted roadways. This engineering study helps to determine which roads will receive the crack sealing treatment each year, based upon road condition, traffic usage, and its rating on the PCI study. This process is sometimes an initial step toward doing a chip seal overlay, and it is sometimes approved for a road based upon the current degradation of the road, as defined in the PCI. All of the asphalt roads throughout the District will need crack sealing attention at some point in their useful life, and the Streets and Roads Dept continually evaluates road conditions in order to prioritize which roads will receive treatment. Unfortunately, a priority list of needs which is based on citizen requests is not possible with the crack filling treatment process.