Micro Milling Road Surface Best Practices

Copies of the BARM can be obtained at www.arra.org. Information on where to obtain the best practice guidelines and additional CP resources can be found in the Additional Resources section. As with any construction process, if the owner agency is concerned with any part of the process, the owner agency should have a conversation with the contractor. 

You can mill to a required depth or cross-slope but not both.

Typically the fewer passes that are made the better the results but it is common to do a full lane with 2 passes of a half lane machine

Cold planing is a smoothness opportunity and in most cases a better place to make geometric corrections than with the overlay that goes on top of it