Construction Alert As of May 22

As of May 22, 2026

For more information about this project, please contact the Community Outreach Team, by calling (800) 440-0457, by email at 57NBproject@octa.net or visit octa.net/57NBproject.

Para obtener más información sobre este proyecto, comuníquese con el Equipo de Alcance Comunitario llamando al (800) 440-0457, enviando un correo electrónico a 57NBproject@octa.net o visite octa.net/57NBproject.

Project Activities

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

On game nights for the Los Angeles Angels and Anaheim Ducks, closures will start at 11 p.m.

PILE INSTALLATION ACTIVITIES

Santa Ana River

Crews will continue installing piles at the Santa Ana River adjacent to the northbound SR-57.

Ongoing from 6:30 a.m. to 4 p.m. and may continue for several weeks.

Access to the Santa Ana River Trail will be maintained at all times. Flaggers will assist cyclists and pedestrians, as needed.

Crews may mobilize as early as 6 a.m.

The SR-57 Community Outreach Team will provide updates in future alerts.

Speed Limit/Safety Reminder: Please look out for posted speed limit and traffic control signs. Slow down within construction work zones, for the safety of motorists and crews.

Interactive Map

For a full list of weekly closures and detours, and the most up-to-date project information, please click on the project Google Map below.

Bookmark the closures and detours map above for quick access to real-time construction information. Click on the construction icons to view activities and closure and detour information. Plan for additional travel time through the area. Detour signs will be in place to assist motorists.

Stay Connected!

We invite you to sign up for project updates so you’ll be the first to know about upcoming construction activities, traffic changes, and community meetings and when we’ll be out in your community at local events — we hope you’ll stop by and say hello!