Why is it that some roads which have been resurfaced last only a year or two before they start to break up again? Isn't this a waste of taxpayer dollars?

The Michigan Department of Transportation classifies road conditions in three categories: good, fair or poor. MDOT knows from experience that once a road deteriorates to the point that it is classified as poor, it will take five times more money to upgrade that road to good condition than it would have taken if the road had been repaired while still in fair condition. The Department often upgrades roads in stages to prevent the road from continued deterioration. The goal is to have 95 percent of our freeways in fair or good condition within 10 years, and 85 percent of our non-freeway roads in fair or good condition.