Detours and Road Closures

NOTE: Information on srcity.org for the full IRONMAN race is currently culled from the May 11, 2019, event.
City webpages will be updated closer to the July 20, 2020, race date.

In the meantime, please visit IRONMAN.com for the full 2020 event details.

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 Traffic Impacts

Race-Day Traffic Assitance

Download the WAZE GPS navigation app on iPhone or Android for free for real-time fastest traffic routing during IRONMAN Santa Rosa, on May 11, 2019. You can also view the WAZE map here.


Downtown Santa Rosa Impacts

Race Week, May 5 to 13

IRONMAN Village will be under construction in and near Courthouse Square beginning on Sunday, May 5. Street closures in the downtown area will be as follows:

  • Courthouse Square West Road:  CLOSED from May 5 at 9:30 am to May 13 at 5 pm
  • Courthouse Square East Road:  CLOSED from May 7 at 8 am to May 13 at 8 am
  • Third Street:
    • CLOSED from B St. to D St., westbound: May 9 at 9:30 am to 5:30 pm
    • CLOSED from B St. to D St. in both directions: May 9 at 5:30 pm to May 12 at 8:00 am (Access to/from Garage 5 will remain available until Friday, May 10, at 5:30 pm)
  • Fourth Street:  CLOSED from B St. to D St. in both directions: May 10 at 9 am to May 12 at 8 am

 Race Day, May 11: 11 am to 6 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, May 11: 11 am to 11:59 pm

  • 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