March 11–18, 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.

Michelson Drive Lane Closures

There will be a full closure of the eastbound left turn lanes on Michelson Drive at Jamboree Thursday, March 12, from 9 a.m. to 7 p.m.

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

This closure is part of the Jamboree & Michelson Pedestrian Bridge project. The bridge aims to improve pedestrian safety, ease traffic congestion, and serve as a gateway monument for anyone entering the Irvine Business Complex. It is expected to be completed July 2027.

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

Jeffrey Open Space Trail Extension Impacts Jeffrey Road

Work has begun on the Jeffrey Open Space Trail (JOST) extension, which will run between Barranca Parkway and Walnut Avenue, connecting to the Jeffrey Open Space Trail Bicycle & Pedestrian Bridge being built over the I-5 Freeway and Walnut Avenue. 

This phase of the project requires lane closures northbound on Jeffrey Road from Walnut Avenue to Smoketree weekdays from 7 a.m. to 5 p.m.

Access to area residences and businesses will be maintained. Detour signage will be in place to direct motorists and pedestrians.

The bridge project and trail extension are anticipated to be completed this summer. Learn more about the JOST Bridge.

Orchard Hills Neighborhood Street Rehabilitation

As part of the Street Rehabilitation Program, the City is performing pavement rehabilitation on Culver Drive and Forge in the Orchard Hills neighborhood. The project also includes installing a Class IV Protected Bike Lane on Culver Drive and Orchard Hills Drive.

Phase 1 is scheduled to begin Monday, March 16, and will continue through April. This phase includes grinding and paving of Culver Drive and Forge. Work will occur weekdays from 7 a.m. to 5 p.m.

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.

Jamboree Road and Main Street Intersection Enhancements

The Jamboree Road and Main Street intersection project is underway with work occurring weekdays from 7 a.m. to 5 p.m. and lane closures in place from 9 a.m. to 3 p.m.

The project, which will continue through August 2026, includes modifications to the alignment and medians at the intersection to enhance traffic flow approaching the I-405 Freeway. It also includes modifying the traffic signal system, providing Class II bike lanes, and adjusting drainage facilities.

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 Street Rehabilitation

Sidewalk, curb ramp, and miscellaneous concrete and accessibility improvements are underway on both arterial and local streets throughout the Woodbury neighborhoods as part of the Street Rehabilitation Program. 

Work occurs weekdays from 8 a.m. to 4 p.m. on residential streets and 9 a.m. to 3 p.m. on arterial streets through May.

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 complete 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.

Dyer Road On-Ramp Extended Closure

Orange County Transportation Authority crews will be reconstructing the northbound State Route 55 Dyer Road straight on-ramp, which will require an extended closure of the on-ramp Tuesday, March 10, at 9 p.m. through Friday, March 20, at 5 a.m. The northbound State Route 55 Dyer loop on-ramp will remain open during this time.

In addition, the outside lane is expected to be closed Friday, March 13, at 9 p.m. through Monday, March 16, at 5 a.m.

This work is part of the Orange County Transportation Authority's State Route 55 Improvement Project. Please visit octa.net/55Construction for more information. 

I-5 Freeway Improvement Project Ramp Closures

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.

Crews continue to implement temporary striping and place K-rail along the northbound and southbound I-5 Freeway, which requires the following ramp and lane closures:

• Wednesday, March 11, 10 p.m. to Thursday, March 12, 5 a.m.
  Northbound I-5 Culver Drive on-ramp
  Southbound I-5 Culver Drive off-ramp
  Northbound I-5 outside lane between Culver Drive and Jamboree Road
  
  
• Thursday, March 12, 10 p.m. to Friday, March 13, 5 a.m.
  Southbound I-5 Culver Drive on-ramps
  
  
• Friday, March 13, 10 p.m. to Saturday, March 14, 5 a.m.
  Northbound I-5 Jamboree Road off-ramp

To sign up for project updates, visit octa.net/I-5Project.

State Route 73 Closures

The northbound State Route 73 Bison Avenue on-ramp will be fully closed through Thursday, March 12, from 10 p.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 on State Route 241 between State Route 133 and Santiago Canyon Road through Friday, March 13, from 9 a.m. to 1 p.m. One lane will remain open to traffic.

In addition, lanes will be reduced on the southbound State Route 241 between Tomato Springs Toll Plaza and Alton Parkway through Friday, March 13, from 9 a.m. to 6 a.m. and from 9 p.m. to 5 a.m. Two lanes will remain 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.