Sealcoat wear indicated by bare asphalt patches
By Water Resources Mission Area
June 2004 (approx.)
Detailed Description
The abrasive action of car tires and snow plows causes sealcoat to wear off. Here, light-colored patches indicate where the sealcoat has worn off and the underlying asphalt shows through. Applicators generally recommend reapplication every 3 to 5 years. Read more about coal-tar-based sealcoat and PAHs here.
Sources/Usage
Public Domain.