Santa Ana Freeway (I-5) Gateway Project

Improving the Gateway to Orange County

Construction began in spring 2006 on the Santa Ana Freeway (I-5) Gateway Project and was completed in late 2010. The four-year project widened the remaining two miles of the Santa Ana Freeway (Interstate 5) in Orange County from the Riverside Freeway (State Route 91) to the Los Angeles County line. Landscaping activities are scheduled to continue through early 2012. The I-5 Gateway Project is the final link in the original Measure M’s (Orange County’s half-cent transportation sales tax) ambitious freeway improvement program. 

Project Highlights

• Added a new travel lane in each direction
• Added a new carpool lane in each direction
• Added extended merging lanes where possible
• Rebuilt overpasses at Stanton Avenue, Beach Boulevard and Western Avenue
• Rebuilt Artesia Boulevard underpass and realign northbound on- and off-ramps
• Realigned the railroad from Stanton Avenue to Artesia Boulevard
• Built aesthetically pleasing retaining walls

For more information, contact Alice Rogan at arogan@octa.net or 714.560.5577.

I-5 Freeway Widening Improvements in Los Angeles

To learn more about the I-5 South Corridor Improvement Project that is taking from Orange County to the I-605, contact Maria Raptis at maria_raptis@dot.ca.gov or 213.897.3630. For the I-5 North Corridor Improvement Project that is taking place from Burbank to Castic, contact Kelly Markham at kelly.markham@dot.ca.gov or 213-897-0303

Metro Project Fact Sheet
Metro Carmenita Fact Sheet