The Plymouth Capital Improvement Plan (CIP) includes recommendations from public works staff for various street projects. The CIP is updated annually. Street projects include crack sealing, mill and overlay, and reconstruction. A brief description of each project is below. Read more information and view a list of city projects on the Project Spotlight/Street Projects page.
Crack Sealing
After a new street is constructed or an older street is reconstructed, it is typical to see cracks in the new asphalt within the first few years. Cracking is caused by extreme temperatures and seasonal conditions such as snow, ice, rain, and dry air. Every two to three years the cracks are sawed, cleaned out and sealed. This process usually is completed in one day, and the street is generally kept open to minimize disruption to traffic.
Mill & Overlay
A mill and overlay is proposed when existing streets show cracking, rutting and flaking, but the material underneath the asphalt is adequate. A typical mill and overlay includes removing and replacing the top 2” of asphalt, minor utility work, and concrete curb and gutter replacement where necessary. This process helps to extend the life cycle of the original pavement and takes a few weeks to a month to complete. Disruption to traffic can occur during mill and overlay projects while the work is being performed, but traffic is maintained at all times. These projects are generally assessed to the adjacent property owners.
Street Reconstruction
A reconstruction project is proposed when the streets have significant cracks and potholes, and the underlying material is in need of replacement. These projects can take the entire summer to complete and significant disruption can be expected throughout the project. Road closures, detours and delays should be expected.