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 800-870-7223 with any questions:

Toyota/Save Mart 350 -  NASCAR Sprint Cup Series Weekend (June 20-22)
Friday, June 20: Between the hours of 11 a.m.-2 p.m. and 5 p.m.-7 p.m.
Saturday, June 21: Between the hours of 8 a.m.-noon and 4 p.m.-6 p.m.
Sunday, June 22: Avoid Highways 37 & 121 if not attending the race. Multi-hour delays should be expected.

Sonoma NHRA Nationals (July 25-27)
Friday, July 25: Between the hours of 8 p.m.-10 p.m.
Saturday, July 26: Between the hours of 4 p.m.-7 p.m.
Sunday, July 27: Between the hours of 4 p.m.-7 p.m.

GoPro Grand Prix of Sonoma Verizon IndyCar® Series Event (Aug. 22-24)
Friday, Aug. 22: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.
Saturday, Aug. 23: Traffic flow should be close to normal conditions. Raceway events should not impact road conditions.
Sunday, Aug. 24: Between the hours of 10 a.m.-noon and 5 p.m.-8 p.m.

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