Detours & Road Closures 

Use this map to zoom to your neighborhood. If there is a highlighted area around your neighborhood click on the map in your neighborhood to get specific detour information.

Road Closure Notifications

Specific Neighborhoods

At-Large and Special Traffic Impacts

Race-Day Traffic Assistance

Download the WAZE GPS navigation app on iPhone or Android for free for real-time fastest traffic routing during IRONMAN Santa Rosa, on July 27, 2019. You can also view the WAZE map here.


Downtown Santa Rosa Impacts

Race Week: Sunday July 21 through Sunday July 28:

IRONMAN Village will be under construction in and near Courthouse Square beginning on Sunday, July 21. Street closures in the downtown area will be as follows:

  • Courthouse Square West Road:  Closed from July 22 (Monday) at 8 AM to July 29 (Monday) at 5:00 PM
  • Courthouse Square East Road:  Closed from July 24 (Wednesday) at 8 AM to July 29 (Monday) at 8 AM
  • Third Street: From B St. to D St.: On Thursday 7/25, westbound closed starting at 9 AM—both directions closed starting at 12:30 PM—through Sunday 7/28 at 8 AM
  • Fourth Street:  Closed from B St. to D St. in both directions: July 26 (Friday) at 9 AM to July 28 (Sunday) at 8 AM

Race Day: Saturday, July 27, from 8:00 AM to 6:00 PM:

  • General Rule: Access downtown Santa Rosa from the north or east for easiest access.
  • West 9th Street eastbound CLOSED from Donahue Street to A Street
  • 7th Street CLOSED from A Street to B Street
  • B Street CLOSED from 5th Street to 3rd Street

Race Day: Saturday, July 27, from 8:00 AM to 12:00 AM:

  • General Rule: Access downtown Santa Rosa from the north or east for easiest access.
  • D Street CLOSED from Sonoma Ave to 4th Street in both directions
  • 1st Street CLOSED from Santa Rosa Ave to D Street in both directions
  • Santa Rosa Ave CLOSED from Sonoma Ave to 3rd Street in both directions