Sun. May 19th, 2024

This weekend is the 20th Annual OC Marathon! Street closures will be in effect for the OC Marathon this Sunday, May 5, in Santa Ana, Newport Beach and Costa Mesa, from 5 a.m. to as late as 12:30 p.m.

The following street closures are planned in Santa Ana on May 5:

  • MacArthur Blvd. at Raitt Street, both directions
  • Raitt St. northbound from Sunflower to Segerstrom avenues
  • Alton Ave. in both directions from Greenville to Bear
  • Segerstrom Ave. eastbound from Raitt St. to Fairview
  • Greenville St. northbound from MacArthur Blvd. to Segerstrom Ave.
  • Segerstrom Ave. eastbound from Fairview St. to Harbor Blvd.
  • Segerstrom Ave. eastbound from Harbor Blvd. to Santa Ana River Trail

The Costa Mesa Police Department (CMPD) will be monitoring traffic and road closures for the event. For the safety of the community and the event participants, CMPD reminds everyone to follow traffic sign directions and obey the rules of the road. 

There will be various closures and detours from the fairgrounds to the Fashion Island area in Newport Beach, including:

Expect delays and closures on these roads on Saturday, May 4, between 4:30pm and 6:30pm (for the 5K) and Sunday, May 5, between 5am and 12:30pm (for the half and full marathons). 

The OC Marathon has partnered with Waze to give you the best experience possible to navigate around road closures with real-time traffic, optimal routes, and event-related road closures.

A complete list of road closures and times can be found at

Schedule of Events:

  • OC Lifestyle and Fitness Expo – Friday, 4pm-8pm & Saturday, 10am-5pm
  • Kids Run the OC – Saturday, 8am-noon
  • OC Lifestyle & Fitness Expo – 10am-5pm
  • Celebrate OC  – Saturday, 2pm-7pm
  • Celebrate OC 5K – Saturday, 5:30pm-6:30pm
  • OC Marathon start – Sunday, 5:30am 
  • OC Half Marathon start – Sunday, 6:30am 
  • Finish Line Party – Sunday, 7am-noon

To all participants, have a great and safe weekend!

By Editor

The New Santa Ana blog has been covering news, events and politics in Santa Ana since 2009.

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