I-5 Central County Improvements

Central I5

I-5 Central County Improvements

SR-55 to SR-57

Currently, 390,000 motorists travel the I-5 between the SR-55 and SR-57 daily. Projected traffic volumes anticipate a 19 percent increase by 2030, bringing the total to 464,000 motorists per day through the cities of Santa Ana, Tustin, southwest Orange and southeast Anaheim. The four-mile, $42 million project will reduce congestion by adding a second carpool lane in each direction.


Construction Costs: $42 million

Funding: Federal and state funds; STIP and local Measure M

1. Carpool alternatives under consideration  

Community Outreach

The environmental phase includes extensive public outreach.

In an effort to keep our residents, businesses and community leaders informed, we are actively meeting with key groups, homeowner associations and businesses in the area. Please contact us to schedule a presentation.

Additional information regarding public meetings will be posted online as soon as the dates and locations are available. The project's public hearing is tentatively scheduled for Spring/Summer 2014.

El Toro Y to SR-55

This project will build new lanes and improve the interchanges in the area between the SR-55 and the SR-133 (near the El Toro “Y”). This segments of the I-5 is the major route serving activity areas in the cities of Irvine, Tustin, Santa Ana, and north Orange County.

The project will increase freeway capacity and reduce congestion. The current traffic volume on this segment of the I-5 is about 356,000 vehicles per day and is expected to increase by nearly 24 percent to 440,000 vehicles per day. The project will also make improvements to interchanges, such as Jamboree Road and Culver Drive, and will generally be constructed within the existing right-of-way.

Schedule: To be determined

Sarah Swensen

Project Contact

Sarah Swensson King
Manager of Community Outreach
(714) 560-5376