The city performs annual trail maintenance in selected areas of the city on about a 5 year cycle. This maintenance is performed to extend the life of the trails. The maintenance consists of trail crack sealing and fog sealing. These maintenance strategies are performed by private contractors and administered by the Engineering Department. The following are explanations of each maintenance strategy:
Trail Crack Sealing
Asphalt trails are designed to be flexible to accommodate the freeze/thaw cycle of our climate. Subsequently, longitudinal and transverse (thermal) cracking will occur in relatively new trails continuing throughout its life due to age, usage, weather, etc. To minimize the infiltration of water through these cracks, they are periodically sealed with a flexible asphalt sealant.
Trail Fog Sealing
Exposure to the sun leads to the degradation of trails by “baking out” of the asphalt. To seal and rejuvenate the surface of trails the asphalt is periodically sprayed with an asphalt emulsion and is left to dry for a period of time. This strategy is typically either preceded or followed by a crack seal.
Trail crack sealing and fog sealing will be taking place this summer between May 15 and August 15, 2017. Properties with driveways that have trail crossings will be notified at least 24 hours in advance of the fog seal operation. Access to driveways that have trail crossings will not be available after the fog seal is applied and while it dries. Depending on conditions, a dry time of at least 2 hours should be expected.
To see which trails are receiving crack sealing and fog sealing, please refer to the 2017 Farmington Projects Map.
If you have any questions related to the trail maintenance projects, please contact Engineering Technician Shawn Snyder at 651-280-6844 or Email.