image of a sheet metal building in Penngrove, California with a rail crossing sign and crossbuck bolted to building

Penngrove Traffic Study

This study will review traffic, mobility and safety conditions to identify transportation improvements that will benefit the community of Penngrove and surrounding areas. The study focuses on the following key travel corridors: Old Redwood Highway, Adobe Road, Petaluma Hill Road and Railroad Avenue.

Get Involved

Thank you for your interest in the Penngrove Traffic Study. Your input is especially important. Find ways to get involved with the Study by clicking one of the links below.

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Interactive Project Map

The comment period ended on June 12, 2023. Comments received ahead of the deadline can still be viewed by clicking the button below.

See Project Map

Study Survey

The survey closed on June 12, 2023. Results will be posted online soon.

Study Background

The County of Sonoma Department of Transportation and Public Works (DTPW) initiated the Penngrove Traffic Study (Study) as part of efforts to identify potential improvements that address traffic congestion, mobility, safety, and regional growth. DTPW is committed to finding solutions that respond to community concerns about traffic and safety on roadways within Penngrove. The Study will provide a comprehensive examination of specific roadway network locations and the effects of potential scenarios involving intersection improvements, congestion relief and traffic calming treatments.

 

The Study will identify goals and objectives to help study potential transportation improvements and recommend physical improvement projects for further consideration. Community engagement is key to this process so that community members and stakeholders have an opportunity to share concerns, be informed and provide comment to identified improvements, recommendations, and the overall development of the Study.

 

Click the questions below to read more about the Study: 

DTPW initiated the Study to address traffic and safety concerns from community members, and achieve countywide goals. Community input is needed to help identify specific issues and concerns in the study area, consider potential improvements, and inform recommendations.

The Study is a key step towards identifying improvements. It will evaluate the effects of potential intersection improvements, congestion relief, and traffic calming elements so that gaps, barriers, issues, challenges, and constraints can be identified and addressed. Existing conditions, proposed improvements, and potential scenarios from planned or programmed projects will be evaluated. A summary of potential impacts will be developed highlighting key challenges and constraints. 

Thank you for your interest in the Penngrove Traffic Study. Your input is especially important. Please use the following links to provide input:

  • Interactive Project Map: Add your location-specific ideas and comments on a map.
  • Join us for a community meeting (see meetings section for details!)

Upcoming Public Events

In-person outreach events will include two Community Workshops, as well as multiple online opportunities to learn more about the Project, provide feedback and review recommendations. Dates for these events will be posted on this website as they are scheduled.

4
May
2023

Community Workshop #1: Penngrove Traffic Study Town Hall

Sonoma County Supervisor David Rabbit is hosting a town hall meeting to hear your feedback on traffic in Penngrove. The event will also include an option to watch and share feedback online. Supervisor Rabbit will be joined by County transportation officials from the Public Infrastructure Department as well as consultant...

Community Workshop #2: Transportation Improvement Recommendations

This workshop will provide an opportunity to show the public preliminary results of the traffic study including recommended transportation improvements and potential impacts on intersections, congestion relief and traffic calming within the study area.  The public will be invited to provide input and comment.

Date TBD 

Project Timeline

Phase Complete

Study Initiation (Phase Complete)

The Study was initiated in June of 2022.

Phase in Progress
Current Phase

Information Gathering

This phase will examine existing studies, traffic data and adopted plans relative to the study area. Data collection and development of the existing conditions report will establish a baseline for identifying and prioritizing mobility improvement projects for the Penngrove Traffic Study.

Phase in Progress
Current Phase

Community Engagement

In-person outreach efforts will include Community Workshops and attendance at Community Events. Dates for these events will be posted on this website as they are scheduled. The public is also encouraged to provide ongoing feedback online. When proposed improvements are developed, a Draft Study document will be made available for public review and comment. 

Phase in Progress
Current Phase

Conduct Traffic Study

The traffic study phase will be developed from an extensive evaluation of existing transportation conditions, planned and programmed projects, analysis of data and modeling scenarios and public feedback. Based on operational findings and performance measures, proposed mobility improvements will be summarized assessing effectiveness and potential impacts.

Future Phase

Study Development (Future Phase)

A Draft Study report will be developed and brought to the public for opportunities to provide review and comment. 

Future Phase

Next Steps (Future Phase)

Once the Study is complete, County staff will consider next steps for potential mobility improvements possibly seeking outside funding to assist with implementation. 

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