About the Project
The project reduces congestion and improves traffic by adding one general purpose lane (regular lane) in each direction on SR-55 between I-5 and SR-22 and provide operational improvements at various locations on SR-55 between SR-22 and SR-91. The project identifies the Build Alternative as the Preferred Alternative. The Build Alternative would:
- Add one regular lane in each direction between I-5 and SR-22;
- Modify southbound on- and off- ramps at Katella Avenue;
- Modify southbound off-ramp at Lincoln Avenue; and
- Modify northbound and southbound off-ramps at Fourth Street
Final Environmental Document Available
Caltrans has prepared and approved the Final Environmental Document (FED) for the SR-55 Improvement Project (I-5 to SR-91), detailing the Preferred Alternative. To view a copy of the FED postcard mailed out to homes and businesses along the corridor, click here. If you are interested in receiving an electronic copy, please email SR55info@octa.net.
Community Outreach
The SR-55 Project Outreach Team is available to make a presentation to your neighborhood, organization or business. Please contact us with requests, questions or comments at SR55info@octa.net or 800-724-0353. To sign up for project email alerts, select the Stay Informed tab at the top of this page.