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:Bridge Milestones
The bridges highlighted below have recently reached a significant project milestone.
Heil Avenue Pedestrian Bridge
Complete
Improvements
Newly improved bridge
LED lighting for nighttime use
Westminster Boulevard
Complete
Improvements
Newly improved bridge
New bike lanes on both sides of the bridge
New westbound sidewalk
Fairview Road
Complete
Improvements
Newly improved bridge
Edinger Avenue
Complete
Improvements
Newly improved bridge
New westbound sidewalk
New bike lanes on both sides of the bridge
Edwards Street
Complete
Improvements
Newly improved bridge
Magnolia Street
Complete
Improvements
Two new lanes of travel
New bike lanes on both sides of the bridge
New northbound sidewalk
Talbert Avenue
Complete
Improvements
Two new lanes of travel
New bike lanes on both sides of the bridge
McFadden Avenue
Complete
Improvements
Two new lanes of travel
New bike lanes on both sides of the bridge
New eastbound sidewalk
Bushard Street
Complete
Improvements
Newly improved bridge
Slater Avenue
Complete
Improvements
Newly improved bridge
Brookhurst Street
Phase 1 Complete
Bridge Open to Traffic During Construction
Improvements
Newly improved bridge
New bike lanes on both sides of the bridge
Bolsa Avenue
Phase 1 Complete
Bridge Open to Traffic During Construction
Improvements
Two new lanes of travel
New bike lanes on both sides of the bridge
New westbound sidewalk
Bolsa Chica Road
Phase 1 Complete
Bridge Open to Traffic During Construction
Improvements
Four new lanes of travel
New bike lanes on both sides of the bridge
Goldenwest Street
Phase 1 Complete
Bridge Open to Traffic During Construction
Improvements
Three new lanes of travel
New bike lanes on both sides of the bridge
New southbound sidewalk
Faster Future – I-405 Improvement Project Milestones & Updates Newsletter
We are excited to share how the project is advancing during the last year of construction with a newsletter to highlight project milestones and construction progress.
This edition of the newsletter features bridge progress updates for Goldenwest Street, Bolsa Avenue, Ward Street, Brookhurst Street and Warner Avenue.
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Contact the 405 Community Outreach Team
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.

