This guide is designed to keep the public aware of traffic patterns on the roadways around the raceway during major event weekends (Highway 121 and Highway 37 corridors). These are the days and times when these highway corridors may be impacted. Other raceway events, including track rental events and racing school events, are not expected to impact traffic. It should also be noted that other events unrelated to the raceway may impact traffic at any time.

Please call 800-870-RACE (7223) with any questions:

Sonoma Historic Motorsports Festival (May 18-19)
Saturday, May 18 - Sunday, May 19: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.

Toyota/Save Mart 350 -  NASCAR Sprint Cup Series Weekend (June 21-23)
Friday, June 21: Between the hours of 11 a.m.-2 p.m. and 5 p.m.-7 p.m.
Saturday, June 22: Between the hours of 8 a.m.-noon and 4 p.m.-6 p.m.
Sunday, June 23: Between the hours of 7 a.m.-noon  and 3 p.m.-7:30 p.m.

Sonoma NHRA Nationals (July 26-28)
Friday, July 26: Between the hours of 8 p.m.-10 p.m.
Saturday, July 37: Between the hours of 4 p.m.-7 p.m.
Sunday, July 38: Between the hours of 4 p.m.-7 p.m.

Indy Grand Prix of Sonoma (Aug. 23-25)
Friday, Aug. 23: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.
Saturday, Aug. 24: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.
Sunday, Aug. 25: Between the hours of 10 a.m.-noon and 5 p.m.-8 p.m.

FIA World Touring Car Championships (Sept. 7-8)
Saturday, Sept. 7 - Sunday, Sept. 8: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.

For additional traffic information, visit www.511.org.