Annual Central District chip sealing operations are wrapping up this week and district workers will have logged roughly 100 miles of life-extending treatment on mid-Missouri roadways. Contractors have completed another 200 miles of chip seal, lengthening the life of 300 miles of highway within district borders.
How does chip sealing work?
Chip-seal work includes seal coating the roadway surface to prevent water from entering cracks in the pavement and deteriorating the road. The process consists of placing small aggregate on top of the sealant as it dries. Crews return after the treatment to sweep the remaining loose material from the road surface.
This cost-effective method of roadway maintenance extends the pavement life of the route and makes the road safer by adding texture to improve the skid resistance of the surface.
Click on the video above to see one of our chip seal operations in action! You can also view the video here: http://youtu.be/pCHIej3h0UM or at our Central District YouTube channel (www.youtube.com/MoDOTCentral) or at our Central District Facebook page (www.FaceBook.com/MoDOTCentralMissouriDistrict).