As part of the ACHD maintenance program crews chip seal street surfaces (including new streets) to protect them from water and weather damage, so they stay in good condition. Crews start preparing the roadway for chip sealing in early spring, as the weather allows.
The 2019 chip seal season is expected to begin as early as May 28, 2019 and last until late August or early September. This year ACHD will resurface approximately 411 lane miles of roadway.
The chip sealing process consists of five phases: