Application Types
Resurfacing Applications
The City incorporates two types of resurfacing applications. The first is asphalt overlay, a
mixture of coarse rock and asphalt 2 inches or more in depth. The second is slurry seals, a
mixture of fine rock and emulsified asphalt that is placed on the pavement about one-fourth-inch thick to
protect and seal the surface from the elements.
Pavement Selection
Roads rated in good condition in the City’s Pavement Management Program may be selected for
slurry-seal application. Roads that would not benefit from slurry seal are ranked in priority for
re-pavement at a later date.
Spray Injection Patching
Spray injection information:
- Spray injection is a proven industry standard to repair potholes and other types of
roadway imperfections.
- The process of spray injection includes cleaning of the area to be repaired with air
pressure.
- A tack coat of heated emulsion is placed.
- The pothole is then filled with granular material coated with heated emulsion.
- Once the hole is filled, a dry layer of granular material is placed on top and the roadway is
ready for traffic.
- Spray injection does have a kick off of aggregate. Streets will be swept by the City
approximately 30 days after the application.
Slurry Seal
Slurry seal information:
- Slurry Seal is a proven industry standard used to preserve roads in good condition and
extend pavement life.
- Prior to application of slurry seal, roads are prepared using crack seal or asphalt patching.
- The City uses different processes of slurry seal that are a mixture of fine aggregate and
emulsified asphalt. The mixture is applied to prepared road surfaces.
- The slurry seal coat requires 24 to 48 hours to cure but can be driven on within a few
hours after application.
- Slurry seal has a kick off of aggregate. Streets will be swept by the City approximately
30 days after the application.
- Residents will be notified at least 24 hours prior to the slurry-seal application on their
street and will be asked to park on a neighboring street while work is being completed.
- An independent material-testing laboratory will be contracted to perform testing of the slurry
materials to ensure that it meets project standards.