Information Provided by OCTA
Today the San Diego Freeway (I-405) is one of the most congested freeways in Orange County, carrying more than 300,000 vehicle trips in some sections each day. Traffic volumes on the I-405 are expected to increase significantly and the population is expected to grow 11 percent by 2040. Download the latest information from OCTA.
For more information visit the Orange County Transportation Authority (OCTA) webpage.Frequently Asked Questions I-405 Improvement Alternatives