Mill & Fill is a structural pavement treatment that involves the removal of the existing surface layer - and in some cases the entire asphalt pavement thickness - with a milling machine and the replacement of the milled location with new asphalt. This process is used when a surface has deteriorated to poor condition and surrounding grades (i.e. curbs, driveways) must be met.
Benefits: Mill & Fill restores and strengthens a road’s surface layer by restoring the pavement to a “like new” condition.
Challenges: The Mill and Fill process costs considerably more than preservation treatments like chip seal or micro surface. When a road has deteriorated to poor condition, pavement preservation treatments no longer provide long-term improvements and structural reconstruction is required.
What to Expect: The Mill & Fill process can take a few days to several weeks to complete depending on the length and width of the project. It is weather dependent, and multi-day lane closures, road closures and detours may be instituted.