An asphalt overlay is a type of pavement reconstruction that is performed on streets to improve the driving surface and to extend the life of the pavement. The treatment basically involves grinding away a portion of the existing pavement and placing a new layer of asphalt on top of it. Portions of a street are typically closed off to parking and traffic while the work is in progress. Once the work is complete and the street is reopened to traffic and parking. The project will also upgrade street intersections with new curb ramps that meet current accessibility requirements and repair curbs that have been damaged by street trees.