Overview - Construction

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Construction Updates

OCTA in cooperation with Caltrans is widening the San Diego Freeway (I-405) between SR-73 and I-605. The project will improve 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line.

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Bridge Milestones

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

Now Open

McFadden Ave

  • 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
Download FAQs
View interactive map
Now Open

Bushard Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly widened bridge
Download FAQs
View interactive map
Now Open

Slater Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly widened bridge
Download FAQs
View interactive map
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
Download FAQs
View interactive map
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
Download FAQs
View interactive map
In Progress

Magnolia Street

  • 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 northbound sidewalk
Download FAQs
View interactive map
In Progress

Westminster Boulevard

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

Improvements

  • Arrows facing opposite directions Newly widened bridge
  • Man riding a bike New bike lanes on both sides of the bridge
  • Man walking on sidewalk New westbound sidewalk
Download FAQs
View interactive map
In Progress

Fairview Road

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

Improvements

  • Arrows facing opposite directions Newly widened bridge
Download FAQs
View interactive map

All Bridge Information

For information about a specific bridge:

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Contact the 405 Community Outreach Team

phone

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

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

Tiếng Việt: Để biết thêm thông tin về Dự Án Cải Thiện Xa Lộ I-405, vui lòng liên hệ với Gia Ly theo số 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