The percentage of Bay Area highway lane-miles with pavement in distressed condition increased from 21 percent in 2013 to 25 percent in 2015, but this remains 10 percentage points lower than the level registered nearly two decades ago. The recent dip in the regional highway pavement quality is attributed mainly to deterioration on the heavily-traveled I-580 and I-880 corridors in Alameda County. As state and local agencies rehabilitate and reconstruct roads in the most distressed conditions, highway segments across the region continue to deteriorate due to increasing age, traffic and unfavorable weather conditions.
Over the past decade, our region has benefited from pavement improvement projects such as those along Interstate 80 and U.S. Highway 101 funded by the 2006 Proposition 1B bond measure and the 2009 federal stimulus package. With the passage of Senate Bill 1, which is forecast to generate billions more in funding for highway repairs, the Bay Area is well positioned to make further progress on this metric in the years to come.