The Santa Rosa Marathon returns to local streets Sunday morning with more than 3,500 runners hitting the course for the 26.2-mile test of strength and endurance as well as the attendant events, a half-marathon and a downtown 5-K race.
Race organizers expect as many as 5,000 people to gather along the course to encourage the runners.
The event will impact local vehicle travel.
These are the schedule road closures:
<b>Downtown loop, generally within the boundaries of Fifth Street to the north, Mendocino Avenue to the west, Sonoma Avenue to the south and Hope Street to the east.</b>
Santa Rosa Avenue, 5-9 a.m.
Sonoma Avenue, 5-9 a.m.
E Street and D Street, 5-9 a.m.
First Street through Seventh Street, 5-9 a.m.