The “milling” portion of the project typically takes one to two days. After the milling is completed, the “overlay” is placed in one to two days depending on the width of the roadway and traffic conditions.
Before the new pavement is placed, the surface of the newly milled pavement is covered with a liquid asphalt tack coat to bond the old and new pavements. Afterwards, a new asphalt overlay is placed at a depth of 1 ½” using a machine called a paver. Hot asphalt (350 degrees F) is brought in by trucks from the City’s Asphalt Plant
. Each truck carries approximately 10 tons per load and overlay crews can quickly lay 400 to 600 tons of asphalt per day.