About Chip Seal
A chip seal is applied to streets with low traffic volumes and deterioration levels greater than those maintained by slurry seal. The material consists of an emulsified asphalt binder and aggregate chips. This treatment provides uniformity of the pavement, minimizes aging effects, and increases skid resistance. Special binders are used to treat reflection cracking. Additionally, water intrusion is prevented from penetrating the road's structural section. A chip seal can extend the life of the pavement by 6-8 years on average.
Process
- Pavement failure areas are dugout and repaired.
- Streets are cleaned of vegetation or debris, and cracks are filled with crack sealant.
- A distributor truck is used to apply asphalt binder to the pavement. Aggregate chips are spreadon top of the binder and a roller is used to embed the chips into the surface.
- After curing, streets are swept to remove any loose chips.
- Permanent striping is replaced 2 weeks later.
Impact to Residents
In order to prepare for the Chip Seal treatment, repair of damaged pavement and crack sealing may begin as early as 3-4 weeks in advance. Traffic delays can be expected during repair of pavement failure areas; however, roads are typically not closed. During the Chip Seal process, roads will be temporarily closed for 1-2 hours. After the material has cured, limited driving speeds are advised in order to prevent loose gravel and chips from dislodging. Residents will be notified via door hanger notices at least 72 hours prior to the treatment with instructions and time of construction. "No Parking" signs will be placed on affected streets 48 hours prior to the process. Vehicles may not be parked on affected roads during the specified times; however, they may be parked outside of the construction zone if you plan to use them that day. You may consider using alternate routes in order to avoid possible traffic delays. Residents with special needs may contact the City in order to plan accordingly. All work is coordinated with transit and waste providers to minimize impacts to service.