Measurement of State Highway Pavement Conditions - 591-0300-16

Description of Agency

The Michigan Department of Transportation (MDOT) has direct jurisdiction over Michigan’s 9,668-mile State highway system, commonly known as the State trunkline system, which is composed of all of the Interstate, U.S.-numbered, and M-numbered routes. MDOT is responsible for measuring the pavement conditions for these State highways. Although the State trunkline system accounts for only 8% of Michigan’s 122,000 highway, road, and street network, it carries over 50% of all traffic and approximately 66% of commercial truck traffic.

Audit Objective

  • To assess the effectiveness of MDOT’s efforts in measuring State highway pavement conditions.


Estimated Release Date: May 2017

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