Gravelization

A Political Economy of Access: Infrastructure, Networks, Cities, and Institutions by David M. Levinson and David A. King

The Star Tribune writes about: Making a rural comeback: The old gravel road Finally some realism and responsibility about resurfacing rural roads:

With maintenance costs included, engineers have often used a rule of thumb that a road needs 150 to 200 cars a day, or the equivalent in heavy-weight traffic, to be worth paving. ... To tear up a thinly paved road and add some new gravel, Ridenour said, costs his county about $5,000 a mile. Resurfacing can run about $100,000. ... "I'd rather have concrete, but it's just so expensive," [Tony Monat] said. "And really, why should everybody in the rest of the county help pay for my hard surface road?"