Overview - Construction

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Construction Updates

OCTA in cooperation with Caltrans is improving 16 miles of the San Diego Freeway (I-405) between State Route 73 (SR-73) and Interstate 605 (I-605). It also will construct the 405 Express Lanes from SR-73 to I-605. The new express lanes – incorporating the existing carpool lanes and connectors that opened in 2014 – will be two lanes in each direction.

View Closures & Detours Excel format PDF format

As of Dec. 28, 2022, we will be retiring the interactive map. However, we will continue to update the closure list and Waze navigation app daily.

As a reminder, we will continue to send our weekly email alert and you can sign up for these alerts at bit.ly/405-signup or visit the construction tab of the project website for the latest construction alerts. We also encourage you to bookmark the closure list link: octa.net/405ClosurePDF.

Thank you for your continued patience as we build a #FasterFuture.

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Bridge Milestones

The bridges highlighted below have recently reached a significant project milestone.

Now Open

Heil Avenue Pedestrian Bridge

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
  • Man walking on sidewalk LED lighting for nighttime use
Now Open

Westminster Boulevard

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
  • Man riding a bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New westbound sidewalk
Now Open

Fairview Road

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
Now Open

Edinger Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
  • Man walking on sidewalk New westbound sidewalk
  • Man riding a bike New bike lanes on both sides of the bridge
Now Open

Edwards Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
Now Open

Magnolia Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Two new lanes of travel
  • Man riding a bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New northbound sidewalk
Now Open

Talbert Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Two new lanes of travel
  • Man riding bike New bike lanes on both sides of the bridge
Now Open

McFadden Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Two new lanes of travel
  • Man riding bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New eastbound sidewalk
Now Open

Bushard Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
Now Open

Slater Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly improved bridge
In Progress

Brookhurst Street

  • Phase 1 Complete Phase 1 Complete
  • Bridge Open to Traffice During Construction Bridge Open to Traffic During Construction

Improvements

  • Arrows facing opposite directions Newly improved bridge
  • Man riding a bike New bike lanes on both sides of the bridge
In Progress

Bolsa Avenue

  • Phase 1 Complete Phase 1 Complete
  • Bridge Open to Traffice During Construction Bridge Open to Traffic During Construction

Improvements

  • Arrows facing opposite directions Two new lanes of travel
  • Man riding a bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New westbound sidewalk
In Progress

Bolsa Chica Road

  • Phase 1 Complete Phase 1 Complete
  • Bridge Open to Traffice During Construction Bridge Open to Traffic During Construction

Improvements

  • Arrows facing opposite directions Four new lanes of travel
  • Man riding a bike New bike lanes on both sides of the bridge
In Progress

Goldenwest Street

  • Phase 1 Complete Phase 1 Complete
  • Bridge Open to Traffice During Construction Bridge Open to Traffic During Construction

Improvements

  • Arrows facing opposite directions Three new lanes of travel
  • Man riding a bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New southbound sidewalk

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Contact the 405 Community Outreach Team

phone

If you have questions, please contact the Outreach Team by calling 888-400-8994

Para obtener más información sobre el Proyecto de Ampliación en el I-405, llame al 888-400-8994

Để biết thêm thông tin về Dự Án Cải Thiện Xa Lộ I-405, xin vui lòng liên lạc cô Gia Lý theo đường dây tiếng Việt 888-662-6569

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Orange County Transportation Authority
Address: 550 S. Main Street
Orange, CA 92868
Bus Information (714) 636-7433
91 Express Lanes (800) 600-9191
OCTA Administrative Office (714) 560-6282