Construction Alert As of May 18

As of May 18, 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.

BRIDGE DEMOLITIONS

Orangewood Avenue Bridge

Crews will begin demolishing a portion of the bridge over Orangewood in the coming weeks.

Demolition activity will occur as early as 11 p.m. to 5 a.m., Monday night, May 18, to Saturday morning, May 22 and again Tuesday night, May 26 to Wednesday morning, May 27.

RAMP & LANE CLOSURES

NB Orangewood Avenue Loop On-Ramp

Intermittent closures, from 10 p.m. to 5 a.m., Monday night, May 18 to Thursday morning, May 21

NB Orangewood Avenue Straight On-Ramp

Intermittent closures, from 10 p.m. to 5 a.m., Monday night, May 18 to Thursday morning, May 21

NB SR-57 lane closures between Chapman Avenue and Katella Avenue

Intermittent lane closures, from 10 p.m. to 6 a.m., Monday night, May 18 to Friday morning, May 22

*At least one lane will be open to traffic at all times, unless otherwise specified.

SURFACE STREET CLOSURES

EB/WB Orangewood Avenue at NB SR-57

Road closures, from 10 p.m. to 6 a.m., Monday night, May 18 to Friday morning, May 22

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 at 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!