July 8–15, 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.

Traffic Signal Shutdown at Harvard Avenue and Michelson Drive

The traffic signal at Harvard Avenue and Michelson Drive will be turned off or placed in red flash mode Monday, July 13, 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 westbound lane on Michelson Drive at Harvard Avenue is 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, and 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

The Orange County Transportation Authority, in partnership with Caltrans, is improving the I-5 Freeway between the I-405 Freeway and State Route 55 to reduce congestion, enhance safety, and improve travel.

The following nighttime construction activities and closures are planned for the demolition of the outer portions of I-5 Freeway at Jamboree Road.

Wednesday, July 8 | 10 p.m. to 5 a.m.
Westbound Jamboree Road will be closed at the I-5 Freeway to continue bridge demolition operations.

Thursday, July 9 | 10 p.m. to 5 a.m.
Inside lanes of westbound Jamboree Road will be closed between the northbound I-5 Freeway on-ramp and the southbound I-5 off-ramp, as well as the northbound I-5 off-ramp at Jamboree.

In addition, work requires intermittent full closures of eastbound Jamboree Road Monday, July 13, through Thursday, July 16, from 6 a.m. to 4 p.m. and 10 p.m. to 5 a.m.

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 (SR-133) connector to the northbound I-5 Freeway will be fully closed through Thursday, July 9, from 11 a.m. to 5 a.m.

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

State Route 241 Lane Reduction

Lanes will be reduced at the northbound State Route 241 (SR-241) between Alton Parkway and Portola Parkway through Friday, July 10, from 9 a.m. to 3 p.m. Two lanes will be open to traffic.

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.