Road Construction & Improvement Projects

December 19-25, 2024 

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.

NOTICE: Please note there will not be a Road Improvement and Traffic Advisory newsletter sent next week, December 25. Any needed updates to these will be shared via the City's social media accounts. 

Culver Drive and Alton Parkway Intersection Improvements

Intersection improvements are being made at Culver Drive and Alton Parkway through Spring 2025. Work will be done to replace asphalt pavement, curb and gutter, curb ramps, sidewalk, and driveway; implement traffic signal modifications, and complete water and utility infrastructure improvements.

Phase one of this project will close the right turn pocket on Culver Drive in the eastbound direction on Alton Parkway just north of Alton Parkway intersection and the right turn pocket on Alton Parkway in the northbound direction just south of Culver. All work will be implemented behind K-rail. Construction will take place weekdays, from 7 a.m. to 3:30 p.m. until early March 2025.

Every effort will be made to keep traffic flowing and minimize disruptions during the work; however, delays should be expected, and motorists should consider using alternate routes.

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

Walnut Avenue Overnight Closure

Walnut Avenue, south of Jeffrey Road, will be completely closed overnight Thursday, December 19, at 9 p.m. to Friday, December 20, at 5 a.m. due to work on the Jeffrey Open Space Trail (JOST) Bicycle and Pedestrian Bridge. 

Access to area residences and businesses will be maintained; however, there will be no access to the southbound I-5 Freeway on- and off-ramps or Caltrans Park & Ride during the overnight closure hours. 

The entire project is anticipated to be complete in March 2026.

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

Woodbridge North Roadway Improvements

Pavement rehabilitation and slurry seal will be done on public arterial and residential streets in the community of Woodbridge North. The work includes concrete repairs to various curbs, gutters, sidewalks, and access ramps, as well as resetting manhole and water valve covers on repaved streets.  

The project began Monday, December 9, and will be complete this winter. Work will take place Monday through Friday from 8 a.m. to 4 p.m. on residential streets and from 9 a.m. to 3 p.m. on arterial streets.

At least 72 hours before work begins in an area, temporary “No Parking” signs will be posted where work will occur showing the dates and times parking will be restricted.

Every effort will be made to keep traffic flowing and minimize disruptions during the work; however, delays should be expected, and motorists should consider using alternate routes.

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

Traffic Signal Shutdown at Harvard Avenue and San Marino 

The traffic signal at the intersection of Harvard Avenue and San Marino will be turned off or placed in red flash mode while work on the signal is underway for rewiring Thursday, January 2, to Friday, January 3, from 9 a.m. to 3 p.m. 

Every effort will be made to maintain traffic flow and minimize disruptions; however, delays are expected and motorists should consider using alternate routes during construction. 

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

Traffic Signal Shutdown at Campus and Berkeley

The traffic signal at the intersection of Campus and Berkeley will be turned off or placed in red flash mode through Friday, December 20, from 9 a.m. to 3 p.m. to replace the signal. 

Every effort will be made to maintain traffic flow and minimize disruptions; however, delays are expected and motorists should consider using alternate routes during construction. 

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

Jeffrey Road and Alton Parkway Bike Lane Closure

The bike lane in the northbound direction on Jeffrey Road just south of the Alton Parkway intersection is closed Monday through Friday, from 7 a.m. to 3:30 p.m., through December.

Part of the Jeffrey Road and Alton Parkway intersection improvement project, the work includes curb, gutter, sidewalk, irrigation, and paving renovations. All work will be done behind K-rail.

The expected project completion date is May 2025. Every effort will be made to keep traffic flowing and minimize disruptions during the work; however, delays should be expected, and motorists should consider using alternate routes.

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

133 Toll Road Closures

The southbound 133 Toll Road connector to northbound I-5 Freeway will be fully closed through December 20, from 9 p.m. to 5 a.m. for miscellaneous work.

Detour: Exit on Irvine Boulevard and turn right. Turn left onto Sand Canyon Avenue and continue straight. Turn right to take the on ramp to northbound I-5 Freeway.

Learn about additional projects taking place 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.