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Roads Division
Pavement Condition
Sonoma Public Infrastructure's offices are now located at 400 Aviation Blvd, Suite 100, Santa Rosa, CA 95403.
Pavement Condition Index (PCI)
What is PCI?
Pavement Condition Index, or PCI, is a numerical index between 0 and 100, which is used to indicate the condition of a specific section of road pavement. Note that PCI does not apply to dirt and gravel roads.
Pavement Inspections
PCI is determined by a manual inspection process, done on site by professional pavement inspectors. Inspectors score a section of roadway by conducting a detailed examination of pavement features such as cracking and potholes.
Map of Current PCI
Legend
| Symbol |  |
 |
 |
 |
 |
| PCI | 0 to 24 | 25 to 49 | 50 to 69 | 70 to 89 | 90 to 100 |
| Meaning | Very Poor | Poor | Good | Very Good | Excellent |
Historical Pavement Condition Trends
| Year | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
|---|---|---|---|---|---|---|---|---|---|---|
| PCI: | 44 | 48 | 48 | 51 | 51 | 48 | 50 | 50 | 50 | 49 |
- Last updated: March 2020
- Results are generated using the Metropolitan Transportation Commission's pavement management software system, StreetSaver.
Current PCI by Functional Class
| Functional Class | Number of Miles | % of Total Road Miles | Average PCI |
|---|---|---|---|
| Minor Arterial | 77.3 | 5.4 | 80 |
| Principal Arterial | 1.3 | 0.1 | 78 |
| Major Collector | 316.2 | 22.4 | 70 |
| Minor Collector | 114.8 | 8.1 | 50 |
| Local Roads | 901.9 | 64.0 | 37 |
- Last updated: March, 2020
Conclusions:
- Local roads make up the majority of the County's road system. These are in poor condition, and bring down the system-wide average PCI.
- Major Collector and Arterial roads have been kept in better condition. These see higher usage, and therefore receive more funding for pavement maintenance.