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Dear Southern Marin Friends and Neighbors,
As we head further into fall, there is a lot happening across Marin County and here in Southern Marin. At tomorrow’s Board of Supervisors meeting, the Board will consider a policy proposal related to federal immigration enforcement. You can read more about the proposal and how to participate in the Board meeting below.
Emergency preparedness also continues to be a top priority. In this edition of the Southern Marin Scoop, we’re sharing timely information about how the County and our local partners are preparing for rising king tides, winter storms, and a potential heavy El Niño—and how you can ready your household ahead of the rainy season. Our Southern Marin Winter Storm Preparation Town Hall is October 21, followed by the Flood Zone 4 (Bel Aire, Strawberry and Tiburon) meeting on October 27. I hope you’ll join us to hear directly from emergency and public officials about how we can best prepare ourselves and our communities for winter.
Beyond learning best practices to weather upcoming storms, District 3 continues to hold various community events including the Marin City Open House at the Southern Marin County Services Annex on November 4.
In District and County news, the Vista Point Trail adjacent to the Golden Gate Bridge opened for public use, improving pedestrian and cyclist safety on what’s known as Marin’s most dangerous mile along Alexander Avenue.
Additionally, as the election nears, ballots have been sent out, and official ballot drop boxes are now available.
There is a lot happening, so please read on for these updates, upcoming events, and ways to get involved. As always, thank you for staying connected and engaged with our Southern Marin community.
All my best,
Stephanie
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Find below stories about:
Federal Immigration Enforcement Policy Consideration, Southern Marin Winter Storm Preparation Town Hall, Oct. 21, Early Voting Begins in Marin, Marin City Open House, Nov. 4, County and Regional News, District 3 News, Contact Us
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Supervisors to Consider Policy Proposal Related to Federal Immigration Enforcement
The County of Marin Board of Supervisors will consider a proposal at its Tuesday, October 20 Board meeting to prohibit the use of County property for certain federal immigration enforcement operations, protect confidential information and require reporting of interactions with federal immigration officials. The proposal comes amid increased federal immigration enforcement in Marin and nationwide, raising concerns about constitutional protections, due process and the impact on immigrant families. This action is consistent with the Board of Supervisors Resolution in January 2025 affirming its commitment to democracy, justice, equity and inclusion and reaffirm the county's core values ahead of the federal administration transition and to push back against potential federal policies targeting undocumented immigrants.
The Board of Supervisors meets on scheduled Tuesdays, at 9 a.m. unless otherwise stated in the posted agenda. Meetings are open to the public, and public participation is encouraged. Meetings are held in room 330 at the Marin County Civic Center, 3501 Civic Center Drive, San Rafael, and assistive listening is available in Board Chambers.
If you'd like to join the Board of Supervisors meeting, you can do so via zoom or by attending in person. Below is the link to view the meeting agenda, location, and zoom link.
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Southern Marin Winter Storm
Preparation Town Hall, Oct. 21
 Southern Marin Winter Storm Preparedness Town Hall Meeting Oct. 21, 6:30 p.m.
Mill Valley Community Center
180 Camino Alto
Mill Valley, CA 94941
Registration
With the potential for a strong El Niño pattern, the possibility of multiple, powerful and prolonged winter storms that could bring heavy rain, strong winds, king tides and, flooding - now is the time to prepare.
You’re invited to a Winter Storm Preparedness Town Hall on Oct. 21 at 6:30 p.m. in Mill Valley to learn what local agencies are doing to prepare and what residents can do before, during, and after storms arrive.
County department representatives will provide information about:
- What you should know about this winter's potential weather and flood risks
- Flood-prone areas and conditions throughout the Ross Valley
- Work underway to prepare flood-control facilities, drainage systems and other infrastructure
- How a cross-department task force and local communities are coordinating before major storms
- Steps the community and businesses can take now to protect their property and prepare their households
- Where to find reliable information and emergency updates before and during storms
There will also be an opportunity to submit your questions and talk directly with County representatives.
Everyone in Southern Marin is encouraged to attend, learn about risks in their area and take practical steps now to be ready for winter. If you cannot attend, a Virtual Town Hall meeting will take place in November.
Learn more: El Niño & Winter Storm Preparedness
RSVP: We want to hear from you! Reserve your spot on Eventbrite by following the link below. Space is limited.
Questions? Please submit any questions that you would like to have answered on El Niño preparedness in advance by sending an email to community@marincounty.gov. Spanish interpretation and American Sign Language interpretation will be available. For disability accommodations, additional language assistance, or materials in an alternative format, call 415-473-4381, dial CA Relay 711
Reunión pública sobre la preparación ante tormentas invernales en el sur de Marin 21 de octubre, 6:30 p. m.
Centro Comunitario de Mill Valley
180 Camino Alto
Mill Valley, CA 94941
Ante la posibilidad de que se presente un fenómeno de El Niño intenso, existe el riesgo de que se produzcan múltiples tormentas invernales fuertes y prolongadas que podrían traer lluvias intensas, vientos poderosos, mareas extremadamente altas e inundaciones; por eso, ahora es el momento de prepararse.
Te invitamos a una reunión pública sobre preparación para tormentas invernales el 21 de octubre a las 6:30 p. m. en Mill Valley para conocer qué están haciendo los organismos locales para prepararse y qué pueden hacer los residentes antes, durante y después de que lleguen las tormentas.
Los representantes de los departamentos del condado brindarán información sobre:
Qué debes saber sobre los posibles riesgos climáticos y posibles inundaciones durante este invierno
- Áreas y condiciones propensas a inundaciones en todo Ross Valley
- Los trabajos que se están llevando a cabo para preparar las instalaciones de control de inundaciones, los sistemas de drenaje y otras infraestructuras
- Cómo se está coordinando el grupo de trabajo interdepartamental y las comunidades locales antes de las tormentas importantes
- Las medidas que la comunidad y los negocios pueden tomar ahora para proteger sus propiedades y preparar sus hogares
- Dónde encontrar información confiable y actualizaciones de emergencia antes y durante las tormentas
También tendrás la oportunidad de hacer preguntas y hablar directamente con los representantes del condado.
Todos los residentes del sur de Marin están invitados a asistir, informarse sobre los riesgos en su zona y tomar medidas prácticas desde ahora para prepararse para el invierno. Si no puedes asistir, en noviembre se llevará a cabo una reunión virtual de la asamblea pública.
Más información: Preparación para El Niño y las tormentas invernales.
Confirma tu asistencia: ¡Queremos saber de ti! Reserva tu lugar en Eventbrite. El cupo es limitado.
¿Preguntas? Envíe con anticipación cualquier pregunta que desee que se responda sobre la preparación para El Niño por correo electrónico a community@marincounty.gov. Habrá interpretación al español y en el lenguaje de señas estadounidense. Para adaptaciones para personas con discapacidad, asistencia lingüística adicional o materiales en un formato alternativo, llame al 415-473-4381 o marque CA Relay 711
Upcoming Flood Control Zone 4 Meeting
 Community members are invited to attend an upcoming Flood Control Zone 4 meeting to learn more about preparations underway ahead of winter storms, king tides, and potential storm surge. Hear updates from County staff, learn about work being done in your area, and ask questions about winter readiness.
📅 Flood Control Zone 4 (Tiburon/Bel Aire, Strawberry) – October 27
More Info: About Flood Control Zone 4: Bel Aire
Join us to learn more and help your community prepare for the winter ahead.
Early Voting Begins in Marin County
Voting for the November 3rd General Election is open in Marin County. Official ballot drop boxes are now available and voting centers will open on a staggered schedule leading up to Election Day. Voters are encouraged to return ballots by October 27 to avoid mail delays and help ensure their votes are included in early Election Night results.
Election Day is Tuesday, November 3, with vote centers open from 7 am to 8 pm.
The County of Marin ballot features 20 local measures, 14 state propositions, 11 state offices, one federal office, 13 judicial seats, and various local school and special district seats. County officials encourage voters to cast their ballots early to ensure their vote is counted and to help expedite election results. Voters who mail their ballots in the last week are advised to go inside the post office to request a hand-stamped postmark. The fastest and most direct way to return a ballot is to use one of the 19 official ballot drop boxes or 21 vote centers. To learn more about the upcoming election and where to find voting centers and dropboxes visit:
To research ballot measures and candidates, check out these links:
VOTE411
November 3, 2026 General Election — League of Women Voters - Marin
Marin City Community Open House, Nov. 4
 Marin City Community Open House
Supervisor Stephanie Moulton-Peters and County of Marin staff invite you to a community Open House in Marin City! Stop by anytime between 5 and 7 p.m. to meet with the Supervisor and County staff, learn about services offered at the Southern Marin County Service Annex, as well as ongoing and upcoming County projects in Marin City, ask questions, and share your input.
📅 Wednesday, November 4, 2026
⏰ Drop in anytime from 5–7 p.m.
📍 Southern Marin County Services Annex
630 Drake Avenue, Marin City
We hope you’ll stop by, say hello, and join the conversation about what’s happening in your community!
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County & Regional News
 Caltrans Schedules Full Closure of SR-37
October 23 - October 26
Caltrans will be implementing multiple closures both Eastbound and Westbound of State Route 37 as part of emergency preparedness for El Niño storm preparation. Crews are expediting work requiring full lane closures of the route.
First, on Wednesday Oct. 21st and Thursday Oct 22nd Caltrans will be closing SR-37 in the westbound direction only from 7PM to 4AM the next day.
From 10 p.m. on Friday, Oct. 23, to 5 a.m. Monday, Oct. 26, the Department will close both Eastbound and Westbound lanes on State Route – 37 (SR-37) from Mare Island to Sears point in Solano/Napa County.
What you should know:
- Westbound SR-37 will be closed nightly from 7 p.m. to 4 a.m. on Wednesday, Oct. 21, and Thursday, Oct. 22.
- During the 55 Hour Closure, SR-37 will be fully closed in both directions between Mare Island and Sears Point from;
- Closure starts: Friday, Oct. 23, at 10 p.m.
- Closure ends: Monday, Oct. 26, at 5 a.m.
- Expect significant delays and increased travel times
- Use alternate routes whenever possible
- Follow posted detour signs and traffic control devices
- All work is weather dependent
The work will consist of median demolition and k-rail installation to shift both Eastbound and Westbound traffic to the Westbound Lanes.
Once the shift is complete Crews will focus their efforts on the Eastbound lanes to raise portions of the roadway by 3 feet to improve resiliency and address flooding concerns along this vital transportation corridor.
To find out more about detour routes, go to ca.gov/caltrans-near-me/
For real-time information, please visit Caltrans QuickMap:https://quickmap.dot.ca.gov
SMART Train Survey: Where should the Healdsburg Station be located?
SMART is bringing passenger rail service back to Healdsburg for the first time in nearly 70 years. As planning advances, SMART is seeking public input on an important question: Where should the Healdsburg SMART station be located?
The Healdsburg station will serve both the local community and people traveling throughout the SMART system. Whether you live in Healdsburg, or plan to utilize the train to travel to or from Healdsburg for work, school, shopping, dining or recreation, we want to hear from you.
Please take a few minutes to complete the survey using the link below and share your thoughts. Your feedback will help SMART better understand community travel needs and preferences as we evaluate potential station locations.
We encourage everyone with an interest in the future of rail service in Healdsburg to participate in the survey. The two locations being considered are just 0.45 miles apart, but hold different characteristics related to surrounding land uses, sidewalk access, bus transit and local transportation connections, parking, future development opportunities and proximity to homes, jobs and destinations.
To learn more, visit www.sonomamarintrain.org/healdsburgstationlocation
County Health Officials Emphasize the Importance of Vaccines This Season
Marin County Public Health encourages all residents to protect themselves and their loved ones against illness by getting the updated COVID-19 and flu vaccines and the RSV vaccine, if they have not done so already. Marin County is seeing a rise in COVID-19 transmission and expects a surge in flu and RSV cases come this winter season. You can find more information on who should get vaccinated and where to go by following the link below.
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El Niño is a naturally occurring climate pattern involving warmer-than-average ocean temperatures in the tropical Pacific. It can influence weather around the world and has historically been associated with wetter conditions in parts of California. A strong El Niño can increase the potential for significant rainfall, but it cannot tell us exactly when or where individual storms will occur.
Marin could experience heavy rain and strong winds, high tides and coastal flooding, creeks and drainage systems filling quickly, downed trees and landslides, power outages, road flooding and travel disruptions, and back-to-back storm systems.
Download AlertMarin
 AlertMarin is the primary notification system used by agencies across the County. We use AlertMarin to send alerts during emergencies like flooding, wildfires, or evacuations, when action is needed at a specific address or location. An AlertMarin notification will give you timely, clear, and accurate information. AlertMarin notifications can be a phone call, text message, or email. You can sign up for alerts from multiple areas, even if you don't live in that immediate area. Emergency officials recommend signing up for alerts near you and your family's homes, school districts, and work locations.
Officials recommend that you save the AlertMarin number in your phone and set it to ring even when "Do Not Disturb" is on.
iPhone
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Save AlertMarin, 877-627-1411, as a contact. Tap "Done."
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Open the contact and tap "Edit." Tap "Ringtone."
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Turn on "Emergency Bypass." Tap "Done."
Android
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Save AlertMarin, 877-627-1411, as a contact. Tap the star icon to make it a favorite.
- Open "Settings" and search for "Do Not Disturb."
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Select "Calls and Messages," then "Add Contacts." Add AlertMarin.
Tip: Add your home landline to your AlertMarin account. That gives us a second way to reach you.
To learn more about AlertMarin, visit Sign up for AlertMarin | Office of Emergency Management
Download FixIt Marin
FixItMarin is Marin County’s official app for reporting non-emergency issues in unincorporated areas. If something in your neighborhood isn’t right— a pothole, a fallen branch, or illegal dumping—let the County know anytime, from your phone, tablet or computer.
As we prepare for incoming flooding, FixIt Marin has a designated section to report blocked roadways, creeks, and storm drains. To learn more on how to download and use FixIt Marin please visit the website.
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Vista Point Trail Opening
 Before we closed the month of September, I attended the ceremonial opening of the Vista Point Trail at the Golden Gate Bridge alongside Congressman Huffman, Supervisor Rodoni, local elected officials, and transportation and environmental partners to celebrate the important advancement of public infrastructure. The trail enables cyclists and pedestrians to avoid Alexander Avenue, which is known as Marin’s most dangerous mile. The path is breathtaking, featuring beautiful sights of the Bay and I couldn’t be more thankful to all that supported this project. I hope our community and visitors alike will enjoy using this new scenic trail!
Marin City Fire Station Open House
 On Sunday October 4th, I enjoyed visiting our Marin City Fire Station at their open house. It was wonderful getting to meet and chat with our local firefighters, tour the station and meet with community members.
Slow and Say Hello
 On September 26th, I enjoyed getting out to the Slow and Say Hello event on Mill Valley’s Multi-Use Path. It was great seeing community members of all ages going outside and enjoying a beautiful day. Slow and Say Hello is an initiative that aims to educate users on responsible use and etiquette, as well as environmental protection on trails and paths in the area. This event was done in collaboration between Marin County Parks and Recreation, Marin County Sheriff's Department, Mill Valley Police Department, and the Marin Horse Counsel. Whether you’re a trail user or looking for a new cause to support, check out Safe Trail Marin’s website below for more opportunities to get involved.
Southern Marin County Services Annex Open
Accessing County services is now easier for Southern Marin residents at the Southern Marin County Services Annex, located at 630 Drake Avenue in Marin City. The Annex brings a variety of essential programs closer to home, including health and human services, employment and training assistance, behavioral health resources, WIC, and programs for older adults.
The Annex is also now home to regular drop-in hours for the Marin County Public Defender’s Clean Slate Program, which provides free legal and DMV assistance. Services include help with expungements, sealing arrest records, early termination of probation, immigration relief, DMV documents, and more. Clean Slate drop-in services are available on the first Thursday and third Tuesday of each month from 9 a.m. to 1 p.m.
Southern Marin County Services Annex:
415-473-5130 | HHSSouthMarinAnnex@marincounty.gov
Clean Slate Program:
415-747-9089 | Defender-Outreach@marincounty.gov
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