July 22–29, 2026

In addition to the projects listed below that may impact your commute, you can find information on work being done to enhance our City on the Capital Improvement Projects Map and the Road Construction Map.

Daisy Chain Fields Music Festival Information for
Great Park Neighborhood Residents

Daisy Chain Fields, a new music festival founded by Olivia Rodrigo and produced by C3 Presents, will debut at the Great Park August 29, from 10:30 a.m. to 10 p.m. 

In the days leading up to the festival, there will be setup activity, including temporary structures, staging, fencing, equipment deliveries, and increased staff presence throughout portions of the Great Park. Festival setup will begin August 23, and event breakdown will begin immediately following the event’s conclusion and last through the end of the day September 2.

Dash Passes
Lane and street closures will take place throughout the festival. Dash Passes for local access are available for residents who need to navigate the Resident Access Only streets August 29. A Dash Pass is a rearview mirror hanging tag or placard placed on the dashboard. Dash Passes do not provide parking on Resident Access Only streets; they only grant access past the traffic barricades. Dash Passes may be obtained from the Daisy Chain Fields Box Office during Dash Pass Distribution hours with required documentation.

Please visit the Daisy Chain Fields website for related information. For general feedback or support, please email neighborhood@daisychainfields.com.

Traffic Signal Shutdown at Paseo Westpark and San Marino

The traffic signal at Paseo Westpark and San Marino will be turned off or placed in red flash mode Monday, July 27, and Tuesday, July 28, from 9 a.m. to 3 p.m.

Every effort will be made to keep traffic flowing and minimize disruptions, but delays should be expected, and motorists should consider using alternate routes when possible.

For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676.

Orchard Hills Neighborhood Street Rehabilitation

As part of the Street Rehabilitation Program, the City is performing pavement rehabilitation on residential streets in the Orchard Hills Neighborhood. The project includes: 

• Pavement rehabilitation on Culver Drive and Forge, north of Portola Parkway
• Slurry seal on Orchard Hills Drive
• The addition of a Class IV Protected Bike Lane on Culver Drive and Orchard Hills Drive

This project also includes utility coordination with the Irvine Ranch Water District.

Work occurs Monday though Friday from 7 a.m. to 5 p.m. and will continue through August.

Access to businesses and private streets/communities will be maintained during the project, however, access to streets and driveways may be temporarily restricted while work is underway. Neighborhood parking may also be limited during construction activities; vehicles must be parked outside the posted work areas until construction is complete and signage is removed. 

For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676.

Harvard Avenue & Michelson Drive Intersection Improvements

One eastbound and one westbound lane on Michelson Drive at Harvard Avenue are closed as work continues on the Harvard Avenue and Michelson Drive Intersection Improvements project. 

Phase 3 is underway and will continue through September. Work occurs Monday through Friday from 9 a.m. to 3:30 p.m.

This intersection widening project will enhance traffic flow through the intersection and improve signal timing coordination along the Harvard Avenue and Michelson Drive corridors.

The City is removing and replacing asphalt pavement, curb and gutter, curb ramps, and sidewalk, as well as modifying traffic signal equipment behind temporary traffic control delineators and permanent K-rail lane closures. The project is anticipated to be completed this fall.

For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676.

Jamboree Road and Main Street Intersection Enhancements

The Jamboree Road and Main Street intersection project is underway with work occurring weekdays from 9 a.m. to 3 p.m.

The project, which will continue through winter, will widen and enhance the intersection and reduce traffic congestion on Jamboree Road and Main Street. Specific improvements include lengthening left turn lanes, removing islands at southwest and southeast corners, modifying the traffic signal system, implementing drainage, water quality, and street lighting upgrades, as well as installing Class II bike lanes. 

Every effort will be made to keep traffic flowing and minimize disruptions, but delays should be expected. Please consider using alternate routes.

For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676. 

Woodbury Neighborhood Improvements

The Pavement Rehabilitation and Slurry Seal project is aimed at improving streets and sidewalks in the Woodbury neighborhood. Work occurs weekdays from 8 a.m. to 5 p.m. through August 21. View the construction notice and map.

Access to streets and driveways may be temporarily restricted while work is underway. Parking within the neighborhood may also be limited during construction activities; vehicles must be parked outside the posted work areas until construction is completed and signage is removed. Access to businesses and private streets or communities will be maintained throughout the project.

For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676.

I-5 Improvement Project Construction Impacts

Demolition of the outer portions of I-5 Freeway at Jamboree Road requires the full closure of eastbound Jamboree Road through July. Please note that crews may switch between eastbound and westbound directions of Jamboree intermittently to conduct the work and implement closures.

Additional activities at the Culver/I-5 bridge include cast-in-drilled-hole (CIDH) and pile driving to widen structures as a part of project improvements. Intermittent nighttime full closure and lane closures on  Culver at the I-5 will occur during the pile driving activity to support I-5 widening work.

In addition, the Peters Canyon Trail will be closed from through Friday, July 24, from 9 p.m. to 5 a.m. for bridge demolition activities. 

For a full list of anticipated weekly closures and detours, and the most up-to-date project information, visit octa.net/I-5Project.

State Route 133 Closures

The southbound State Route 133 connector to northbound I-5 Freeway will be fully closed through Thursday, July 23, from 9 p.m. to 5 a.m.

In addition, the southbound State Route 133 connector to northbound State Route 73 will be fully closed through Thursday, July 23, from 9 p.m. to 6 a.m.

View detours as well as other work impacting The Toll Roads.

Learn about additional projects throughout our City, including project descriptions and work hours, as well as any lane closures and night and weekend work, which may occur intermittently on major arterials when permitted.