Seal Coating Paved Streets
Seal coating is the most common method of preventive street maintenance. A surface treatment seals and protects existing pavement and adds new life, but does not add significant structural strength.
The City of Ramsey annually drives each of the 183 miles of paved roads in Ramsey and utilizes a pavement ratings system that determines the condition of the roads. The roads are prioritized based on that criteria and scheduled for maintenance. The general timeline for seal coating is seven years after construction to provide the first seal and again about every seven years thereafter.
Ramsey uses a single surface treatment, which means a single application of asphalt is sprayed on the existing bituminous surface followed immediately by a single layer of aggregate (small pieces of rock) of as uniform a size as practical. The treatment is about 3/8 of an inch thick-the maximum size aggregate particles used. This type of material provides for excellent wear and waterproofing and improves skid resistance.
Expectations During Seal Coating Process
Here are a few things you can expect during the seal coating process:
- Streets will be well marked with signs and cones, so use alternate routes if possible.
- Drive slowly over the rock; do not spin your tires.
- Excess rocks will become bumpy and will be swept as soon as the new surface is ready to be exposed, usually between one and two weeks.
- Roads will be swept as necessary throughout the summer and early fall. It may take three or four times before all the excess rock is picked up.
- Do not forget to drive slowly and be patient. Crews doing the road work appreciate your cooperation.
If you have questions about a particular street, contact the Engineering Department at 763-433-9820.