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Data released by the Metropolitan Transportation Commission (MTC) shows the region's 43,000 lane-miles of local streets and roads (including Solano County) registered an average pavement condition index (PCI) score of 67 out of 100 points last year, as calculated on a three-year moving average basis.
PCI scores of 90 or higher are considered excellent, pavement with a score in the 80 - 89 range is considered very good, and shows only slight or moderate distress, requiring primarily preventive maintenance. The good category ranges from 70 - 79, while streets with PCI scores in the fair range are becoming worn to the point where rehabilitation may be needed to prevent rapid deterioration.
The attached link shows the pavement condition index (PCI) for bay area jurisdictions, including those located in Solano County. Dixon is on page 17.