Overlays are selected for streets which need additional pavement strength because traffic loading has changed. In these cases, a special process is used which recycles and rejuvenates the surface of the existing pavement with only minor additions to the pavement section. Crew applies hot asphalt overlay to street. The streets to be reconstructed during summer 2001 are shown on the map and listed. When a street undergoes reconstruction the existing asphalt is entirely removed and replaced.
Reconstruction is selected when a street is no longer repairable with the above operations.
A road can fall to this state because of poor soil conditions, excessive traffic loads or problems with the original materials or construction. A street will be closed entirely when this operation is conducted. Construction may last from a day to a week. Street reconstuction is a major job and involves significant expense.