Detours and 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 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