Street closures will be in effect for the OC Marathon on Sunday, May 4, 2025, in Santa Ana, Newport Beach, and Costa Mesa, from 4 a.m. to as late as 2 p.m.
The following street closures are planned in Santa Ana on May 4:
- Raitt Street northbound from Sunflower Avenue to Segerstrom Avenue
- Alton Avenue in both directions from Greenville Street to Bear
- Segerstrom Avenue eastbound from Raitt Street to Santa Ana River Trail
- Segerstrom Avenue eastbound from Fairview Street to Santa Ana River Trail
- Segerstrom Avenue eastbound from Newhope Street to Santa Ana River Trail
- MacArthur Boulevard in both directions at Raitt Street
- Greenville Street northbound from MacArthur Boulevard to Segerstrom Avenue
- Fairview Street at Segerstrom Avenue in both directions
- Harbor Boulevard at Segerstrom Avenue in both directions
See a map of Santa Ana closures
See the full list of OC Marathon street closures