I-405 Improvement Project description

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