Construction Alert As of May 4

As of May 4, 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 his work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

BRIDGE DEMOLITIONS

Santa Ana River Bridge

Crews will continue demolishing a portion of the bridge over the Santa Ana River in the coming weeks.

This work will require a closure of the two outside lanes on the right-hand side of the bridge.

Northbound (NB) SR-57 will also be closed between the NB SR-57 on-ramp from Orangewood Ave. and the SR-57 off-ramp to Katella Ave.

Nightly closures will continue from 11 p.m. to 5 a.m., Monday night, May 4, to Saturday morning,

May 9.

RAMP & LANE CLOSURES

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

NB Orangewood Avenue Loop On-Ramp

Intermittent closures, from 10 p.m. to 5 a.m., Monday night, May 4 to Saturday morning, May 9

NB Orangewood Avenue Straight On-Ramp

Intermittent closures, from 10 p.m. to 5 a.m., Monday night, May 4 to Saturday morning, May 9

NB Katella Avenue Off-Ramp

Intermittent closures, from 10 p.m. to 5 a.m., Monday night, May 4 to Saturday morning, May 9

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

Intermittent lane closures, from 10 p.m. to 5 a.m., Monday night, May 4 to Saturday morning, May 9

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

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.

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

Crews may mobilize as early as 6 a.m.

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!