Pavement Rehabilitation - A Guide for Minnesota Counties and Cities

This manual describes the evaluation and design procedures for pavement rehabilitation. The evaluation emphasizes a number of variables or conditions that should be considered. This manual does not introduce any new technology. Thickness designs of new pavements require two primary variable: traffic and soil strength. Rehabilitation design requires several additional variables such as: pavement structure, condition and strength. Rehabilitation design can involve more alternatives than new design that deal with materials, equipment, disruption of traffic and work zone safety. This manual has been written as a working reference to help identify and classify the surface distress, explore the various rehabilitation alternatives, select an appropriate alternative and briefly describe the rehabilitation procedure. The manual provides standardized identification of distress types for both flexible and rigid pavements, calculation procedures for Equivalent Axle Loads, and a brief synopsis of the AASHTO thickness design procedure. This manual should be used by cities and counties as a reference in developing rehabilitation strategies