The percentage of Bay Area highway lane-miles with pavement in distressed condition fell from about 29 percent in 2011 to 21 percent in 2013, the lowest level registered in at least 15 years. Much of the improvement is due to a series of repaving projects along Interstate 80, U.S. Highway 101 and other major routes made possible by state funds delivered through the 2006 Proposition 1B bond measure and the 2009 federal stimulus package.
The Bay Area’s smoothest highways generally are found in suburban portions of the region – in particular, Contra Costa, Santa Clara and Solano counties. Heavy use of urban freeways in San Francisco has resulted in pavement conditions far worse than other Bay Area counties. Though San Francisco routes account for just four percent of all distressed highway pavement in the region, 37 percent of the highway lane-miles in the city are in poor shape.