On Sunday March 5th, the Napa Valley Marathon will be making its way through the Valley! The course begins at 7am in Calistoga and finishes at Vintage High School in Napa. There will be multiple road closures throughout the course:
From State Route 128 to Yountville Crossroad, runners will be contained within the southbound lane, which will be closed; this segment will be open to (CHP escorted) northbound traffic.
Silverado Trail from Yountville Crossroad to Oak Knoll Avenue, and the rest of the race course along Oak Knoll, Big Ranch and El Centro, will be closed to traffic between the hours of 10:00 a.m. and 1:00 p.m.
Here is a map of the full course - have a look!