Project Overview

Anticipated Project Schedule

Funding

This $41.5 million project is funded with federal dollars and by OC Go (also known as Measure M), Orange County’s half-cent sales tax for transportation improvements.

Community Outreach

As the project continues through the construction phase, we will continue to keep residents, businesses and community leaders informed. We are actively meeting with key groups, homeowners associations and businesses in the area. Please contact us to schedule a presentation or for additional project information.

Closures and Detours Map

Plan your commute around construction with the I-5 Central County Improvements Project Interactive Map. Visit www.octa.net/i5centralmap for information about construction activities and closures.

Upcoming Construction Activities

UPDATE: I-5/MAIN STREET CARPOOL RAMP DEMOLITION MOVED TO EARLY AUGUST

Demolition of the I-5/Main Street carpool ramp in Santa Ana is now scheduled for early August. In anticipation, crews will continue to remove the lost deck (wood forms used in the construction of the bridge) and excavate the roadway between the two retaining walls on the ramp portion of the structure. More details, including specific closures and detours, will be provided in the coming weeks.

The demolition will require a full street closure of Main Street, as well as various on- and off- ramps and a portion of I-5 between SR-55 and SR-57. Once finalized, all detour and closure information will be available on the project's closures and detours map.

RETAINING WALLS

Crews are making progress on two retaining walls along northbound I-5 between Grand Avenue and 17th Street and will continue work as they prepare for a daytime concrete pour for the week of July 15.

CONCRETE POUR FOR DRAINAGE INSTALLATION

WHAT: Daytime drainage installation continues behind k-rail. Next week, crews are expected to pour concrete for drainage installation near the Main Street on-ramp, which can only be done at night. The outside lanes and ramps at various locations are expected to close to allow crews to perform this work.

WHERE: Southbound I-5 between SR-55 and SR-57.

WHEN: 10 p.m. to 5 a.m. Thursday, July 18.

Please be advised, this work may be loud. Dates and times are subject to change if there is inclement weather or unforeseen operational factors.

I-5/Main Street Carpool Ramp Closed

The I-5/Main Street carpool ramp was permanently closed on Tuesday, April 9. The ramp will be demolished this summer to make room for a second carpool lane on I-5 between SR-55 and SR-57. Motorists who normally use the Main Street carpool off-ramp can check out our Getting to Main Street map.

Documents & Downloads

Documents

• Project Fact Sheet
• Project Fact Sheet (Spanish)
• Project FAQs
• Getting to Main Street Map
• I-5/Main Street Carpool Ramp Demo Detour Map
• I-5 Central Project General Information
• Text Alerts
• I-5 Central Continuous Access Map

Press Releases

• I-5 Freeway Construction in Central O.C. Gets Going

CEQA and NEPA Resources

• https://ceq.doe.gov/
• http://resources.ca.gov/ceqa/more/faq.html
• http://resources.ca.gov/ceqa/guidelines/
• http://www.epa.gov/compliance/nepa/