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
Bridge Milestones
The bridges highlighted below have recently reached a significant project milestone.
All Bridge Information
For information about a specific bridge:
Latest Activity
-
Springdale Construction Update
TONIGHT! Virtual Neighborhood Meeting: September 16 from 4-5 p.m.opens in a new tab
Thursday, September 16, 2021
-
Weekly Construction Alert
I-405 Improvement Project Construction Alert: Wednesday, September 15opens in a new tab
Wednesday, September 15, 2021
-
Closures and Detours
Construction Update: SB I-405/SR-73 Connector Pile Installationopens in a new tab
Monday, September 13, 2021
-
Closures and Detours
Construction Update: REMINDER! NB I-405 Euclid Street Off-Ramp Closedopens in a new tab
Monday, September 13, 2021
-
Closures and Detours
Construction Update: SB I-405 Closures for Goldenwest Falsework Installationopens in a new tab
Friday, September 10, 2021
-
Closures and Detours
Construction Update: Beach Boulevard Closures for Falsework Removalopens in a new tab
Friday, September 10, 2021
-
Closures and Detours
Construction Update: NB I-405 Euclid Street Off-Ramp Closureopens in a new tab
Wednesday, September 8, 2021
-
Milestones and Openings
Open to Traffic: SB I-405 On-Ramp from Euclid Street opens in a new tab
Wednesday, September 8, 2021
-
Closures and Detours
Construction Update: SB Euclid Street Closures for Waterline Installationopens in a new tab
Tuesday, August 31, 2021
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