Construction Updates | Sonoma-Marin Area Rail Transit
SMART Train crosses Haystack Bridge in Petaluma.

Construction and Maintenance Updates

The latest construction updates on SMART projects can be found on this page. 

For questions regarding construction activities, please contact Allison Mattioli, Communications and Marketing Specialist at amattioli@sonomamarintrain.org.

To sign up to receive periodic email updates on construction activities for specific SMART projects, please click the link(s) below:

Windsor Station

SMART is preparing to launch passenger rail service to Windsor in late Spring 2025. As part of this process, the Sonoma County Airport station will be temporarily closed on weekends in April for systems testing. All other SMART stations will remain open. The testing is scheduled for the following dates:

  • Saturday and Sunday, April 5–6
  • Saturday and Sunday, April 12–13
  • Sunday, April 20
  • Saturday and Sunday, April 26–27 (tentatively) 

Train operations during testing

Test trains will operate between the SMART Airport train station and Windsor from 7:00 AM to 10:00 PM beginning in early April. During testing, trains will sound their horns and bells intermittently, as required by federal safety regulations.  

Use of train horns and Quiet Zone

The Town of Windsor is in the process of applying to the California Public Utilities Commission (CPUC) to establish a Quiet Zone. Once approved and implemented, routine train horn use at designated crossings will be eliminated, except in emergency or safety-critical situations.

During systems testing and until a Quiet Zone is established, the Federal Railroad Administration requires the use of horns and bells for safety purposes. As a result, train horns and crossing bells will be heard from Airport Boulevard to Windsor.

We understand that this may cause temporary noise disruptions and appreciate the community’s patience as we work to ensure a safe and successful start of service.

For additional information on the systems testing and temporary closure of the Sonoma County Airport station, please visit sonomamarintrain.org/systemclosure.

The most recent constructions updates on the Windsor Station can be found below:

    Petaluma North Station

    The Petaluma North Station opened on Friday, January 10, 2025.

    The pathway is anticipated to open in late March 2025.