I-405 Improvement Project

The Orange County Transportation Authority (OCTA), in cooperation with the California Department of Transportation (Caltrans), is widening the San Diego Freeway (I-405) between State Route 73 (SR-73) and Interstate 605 (I-605).

Key Features of the application include:

• Latest construction information

• Approved detours in interactive map

• Link to Waze app to navigate around closures

• Audio reports in English, Vietnamese and Spanish

• Engaging videos

• Photos from community events and construction activities

• Time-lapse videos

• Project information, including Express Lanes FAQ