March 25–April 1, 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 Alton Parkway and Paseo Westpark

The traffic signal at Alton Parkway and Paseo Westpark will be turned off or placed in red flash mode from 9 a.m. to 3 p.m. Monday, March 30.

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.

Traffic Signal Shutdown at Culver Drive and Viewpark

The traffic signal at Culver Drive and Viewpark will be turned off or placed in red flash mode from
9 a.m. to 3 p.m. Tuesday, March 31.

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.

Jeffrey Open Space Trail Extension Impacts Jeffrey Road

Work is underway 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 has begun, 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.

Marine Way Project

As work continues this week on the underpass excavation walls and deck, new renderings of the completed project showcase the multitude of ways you can use the new rail undercrossing. The extension supports a broader shift toward active and sustainable travel modes with sidewalks and bike trails in addition to two lanes of vehicle traffic in both directions.

The addition of new vehicle lanes and a dedicated access point to the Great Park will help reduce congestion at the intersection of Sand Canyon Avenue and Marine Way. The opposite end of Marine Way is currently under construction by FivePoint and will be opened to the public following City inspection and approval.

Learn more about the project and view our FAQs at cityofirvine.org/marineway.

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 ramp and lane closures Wednesday, March 25, through Saturday, March 28, from 10 p.m. to 5 a.m. View closures.

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

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.