Overview - Construction

Skip navigation Reduce Motion High Contrast Careers Contact Us
OC Go local tax dollars at work

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.

View Closures & Detours Excel format PDF format

OC Go local tax dollars at work

Bridge Milestones

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

Edwards Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly widened bridge

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

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

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

Bushard Street

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly widened bridge

Slater Avenue

  • Completed project Complete

Improvements

  • Arrows facing opposite directions Newly widened bridge

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

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

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

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

Social Media Feed

Latest Activity

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

Magnolia Street Bridge Opening

construction
Get Connected