The formation of cracks in asphalt pavement is a result of the combined effects of traffic and temperature variations. Cracks are a normal occurrence as asphalt ages, thus becoming less pliable and unable to withstand the strains of these environmental effects. Preventive maintenance measures such as crack sealing can significantly prolong the road's lifespan and enhance the driving experience for motorists.

The ACHD crack seal maintenance program is to seal cracks on all streets, including those that do not warrant a full chip seal when in a preventative maintenance zone. Crack sealing can help extend the life of a roadway, reduce pavement failures, and minimize water infiltration, deterioration, and potholes. This form of preventive maintenance can save money by delaying major reconstructive pavement work.

What is Crack Sealing

Crack seal consists of a heated, adhesive blend of rubber and asphalt. This process fills the cracks only and is not intended to resurface the entire street. The sealant forms a long-lasting, resilient seal that is flexible and expandable in varying and extreme pavement temperatures. It takes only a few minutes for each filled crack to cool, allowing cars to pass over the treated area. Impacts to residents and motorists are minimal with crack seal maintenance.

Potholes!

Though there may be other contributing factors, potholes are generally created when water gets into the base material of the road, weakening the structure. Traffic moving over the poorly supported asphalt surface then causes the road to begin to disintegrate, creating potholes. Since ACHD’s creation in 1972, our goal has been to respond to potholes within 24 hours after receiving notification. If you happen to find one, please let us know and we will take care of it.