Are Highways Crumbling? State and U.S. Highway Performance Trends, 1989–2008

Source: David T. Hartgen, M. Gregory Fields and Elizabeth San José, Reason Foundation, 2012

From the press release:
…A new Reason Foundation report examining 20 years of state highway data finds the condition of America’s state-controlled roads has improved in seven key areas including deficient bridges and pavement condition.

All 50 states lowered their highway fatality rates from 1989 to 2008 and 40 states reduced their percentages of deficient bridges during that time. Nationwide, the number of deficient bridges in the country fell from 37.8 percent of all bridges in 1989 to 23.7 percent in 2008.

The Reason Foundation study tracks spending per mile on state-owned roads and measures road performance in seven categories: miles of urban Interstate highways in poor pavement condition, miles of rural Interstates in poor condition, congestion on urban Interstates, deficient bridges, highway fatalities, rural primary roads in poor condition and the number of rural primary roads flagged as too narrow. …