The California Statewide Local Streets and Roads Needs Assessment (October 2014) In now availble. This report details the failing of California‚Äôs streets and roads. It provides a critical analysis and information on local transportation networks' condition. Sonoma County ranks 47th of the 58 counties in California based on the Pavement Condition Index (PCI), which is an improvement from two years ago when we were 51st. See pages 16-17. If voters approve a sales tax increase for roads in June 2015 Sonoma County will greatly improve in the coming years.