The Sonoma County Department of Public Infrastructure has released two lists of roads that will be improved during the 2024 construction season. Funds from the pavement preservation programs will repair portions of 34 roads totaling about 18 miles. Click here to see the list. Portions of another 11 roads totaling about 9.5 miles will be repaired using settlement funds from the County’s settlement of fire damage claims against Pacific Gas & Electric Company. Click here to see the list.
All pavement preservation projects for 2024 and 2025 were previously approved by the board of supervisors in April 2023. The complete list of roads for pavement preservation projects in 2024 and 2025, including road names, pavement treatments, cost, and other information can be found here and a map of the projects schedule for 2024 and 2025 here.
Funding for the projects on these lists is partially the result of the advocacy of Save Our Sonoma Roads and its members, although we had no role in deciding which projects were included in the list.
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Periodically Public Infrastructure (formerly Department of Transportation and Public Works) hires a consultant to assess the conditions of Sonoma County’s 1,349 miles of paved roads (the county also has 17 miles of gravel roads). The current version of this information can be found in Harris & Associates “2022 Pavement Management Program Update.”
The report contains a wealth of information on Pavement Condition Index (PCI), which is a measure of road condition. It uses a scale from 1 to 100, with 100 being perfect. Below 50 the condition of a road is classified as "poor" and below 25 a road is classified as being in "very poor" condition.
Overall county roads in 2022 have a Pavement Condition Index of 53, an improvement from 52 the previous year. The major collectors and arterials are in the best condition, ranging between 69 and 78 and classified as very good. Local roads account for almost two-thirds of the county road system and have a PCI of 42. Many are in very bad shape, with 17 percent being ranked as poor and 25% ranked as very poor.
Appendix I (PDF pages 27-90) contains the current Pavement Condition Index for each road section of Sonoma County, listed alphabetically.
The county has made considerable progress in recent years, but still has a long way to go.
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The Harris & Associates “2022 Pavement Management Program Update” provides the results of a visual survey of Sonoma County’s 1,349 miles of roads during 2022. The report contains a wealth of information on Pavement Condition Index, a measure of road condition on a scale from 1 to 100, with 100 being perfect. Below 50 is considered "poor" and below 25 "very poor."
The executive summary states that overall county roads in 2022 have a Pavement Condition Index of 53. The major collectors and arterials are in the best condition, ranging between 69 and 78. However, 42 percent of Sonoma County roads (especially local roads) are considered to be poor or very poor.
Appendix I (PDF pages 27-90) contains the current Pavement Condition Index for each road section of Sonoma County, listed alphabetically.
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Sonoma County Public Infrastructure (formerly Transportation and Public Works Department) has issued its list of proposed pavement preservation projects for the 2024 and 2025 construction seasons. The supervisors may approve these on April 18, 2023. The funds for these projects were allocated in part as the result of advocacy by SOSroads and its members.
To see the two-page list of recommend roads, including road names, locations, pavement treatments, cost, and other information, click here.
Note that only portions of most listed roads are planned for pavement improvement, not the entire lengths of the roads. Among the portions of roads that are proposed for improvement are the following:
- District 1: Los Guilicos Avenue, Railroad Avenue, Solano Avenue, Orange Avenue.
- District 2: Chapman Lane, Cyprus Avenue, Lowell Avenue, Minnesota Avenue, Penngrove Avenue.
- District 3: West Robles Avenue, Barbara Drive, Eddy Drive.
- District 4: Mill Creek Road, Starr Road, Coffee Lane, Leslie Road.
- District 5: Bay Flat Road, Skaggs Spring Road, Coleman Valley Road, Scenic Avenue.
Here is a map of the planned projects
Other information of interest includes:
• County of Sonoma Summary Report
• Tier 2 PG&E Settlement Project Modifications
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In early January 2022, the Department of Transportation and Public Works updated the County’s 2014 Long Term Roads Plan. The current update (Summary Report) highlights accomplishments of the Pavement Preservation Program since the Board began increasing local funding contributions in 2012. This change in direction was largely in response to Save Our Sonoma Roads efforts that begin in autumn 2011.
The Department’s map depicts the completed and planned segments of its Pavement Preservation Program between 2012 – 2023 (Map of Preservation Completed and Planned). At this time 412 miles have been refurbished which will increase to 456 miles by 2023 (Pavement Preservation Cumulative Totals).
During this period Sonoma County’s overall pavement condition index has improved from 44 to 52 (County Overall Pavement Condition). The major collector roads have improved from 73 to 79, and the minor collector roads from 46 to 55 (Annual Pavement Condition by Functional Class). Local roads still have a long way to go, but have improved from 34 to 39.
Sonoma County apparently contributes more of its general fund to pavement preservation than any other county in California (General Fund Contributions by County).
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