A study published by TRIP—a national nonprofit transportation research group—found that San Francisco Bay Area roads are the worst in the state and are deteriorating.

TRIP also found that poor road conditions increase vehicle operating costs by about $1,000 per year. About 71 percent of paved roads in the San Francisco-Oakland area are ranked as being in “poor” condition.

The report noted that the recent approval by the Legislature of SB1, a gas tax to create $5.2 billion annually for road and other infrastructure improvements, might be repealed by Proposition 6 on the November ballot.

The report concludes “If California is unable to maintain its current level of transportation investment, the cost to the public of deficient roads, traffic congestion, and a lack of adequate roadway safety will increase and economic development opportunities and quality of life in the Golden State will be diminished.”

You can read the full report here.

This report (Click Here), updated to the final version on June 11, 2018, was funded by the Sonoma County Transportation and Public Works Department and provides information on the current status of the 1,357 miles of pavement on county roads. Half of the road network is surveyed each year.

Currently, about 33% of the county road system is good or very good; 11% is fair; 26% is poor; and 30% is very poor or failed.

By functional classification, arterials are in the best shape (pavement condition index 79); major collectors have a PCI of 71; minor collectors a PCI of 49; and residential roads a PCI of 33.  Residential roads account for almost 58% of the county road system, and SOSroads members already know they are in the worst condition.

The countywide PCI has fallen from a recent high of 51 (2015) to 48, but it is still well above the PCI of 43 when SOSroads began in 2011. The recent decline may be attributed to the severe winter storms in 2016-2017.

The recommended budget scenario would improve the countywide PCI to 53 within five years, and will require an investment of about $250 million.