Roadway Improvements & Traffic Advisories for March 26–April 2, 2025

City of Irvine sent this bulletin at 03/26/2025 05:00 PM PDT
Roadway Improvements and Traffic Advisories

March 26–April 2, 2025

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.

Annual Street Rehabilitation and Slurry Seal

The City will be conducting pavement rehabilitation and slurry seal operations in the communities of West Irvine, North Park, and North Park Square. This project includes the application of slurry seal and necessary asphalt repairs to help extend the life of existing streets and maintain the integrity of Irvine’s roadways, ensuring a smoother ride for drivers.

Additionally, in collaboration with Irvine Ranch Water District, the project will involve resetting manhole and water valve covers to grade on streets that have been repaved.

Work is scheduled to begin Tuesday, April 1, and will take place weekdays between 8 a.m. and 4 p.m. on residential streets, and between 9 a.m. and 3 p.m. on arterial streets.

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

Slurry Seal

Phantom Class IV Protected Bikeway

The City is continuing to make improvements to Irvine’s bicycle infrastructure with the construction of its second Class IV Protected Bikeway, which features a physical barrier between drivers and cyclists.

Work is scheduled to begin Monday, March 31, and continue through mid-April. Work will be done Monday through Friday from 9 a.m. to 3 p.m.

No full road closures are anticipated; however, temporary traffic control will reduce and shift travel lanes around work areas. Please use alternate routes when possible. 

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

Phantom

Traffic Signal Shutdown Bryan and Marketplace 

Work will be conducted on the traffic signal at the intersection of Bryan and Marketplace Thursday, March 27. The traffic signal will be temporarily turned off and/or switched to red flash mode between 9 a.m. and 3 p.m.

Jeffrey Open Space Trail Bicycle and Pedestrian Bridge Freeway Impacts

As construction on the Jeffrey Open Space Trail (JOST) Bicycle and Pedestrian Bridge continues, crews will be placing concrete within the bridge structure. This work will require temporary lane closures along the I-5 Freeway. Additionally, both northbound and southbound off-ramps at Jeffrey Road will be closed.

Overnight closures will be in place for:

  • Partial lane closures of northbound and southbound I-5 Freeway from Culver Drive to Sand Canyon Avenue
  • Northbound and southbound I-5 Freeway off-ramps at Jeffrey Road

Work will be done:

  • Wednesday, March 26, from 9 p.m. to Thursday, March 27, at 7 a.m.
  • Thursday, March 27, from 9 p.m. to Friday, March 28, at 7 a.m.

Detour signage will be in place to direct motorists. For more information, email pm@cityofirvine.org or call the project hotline at 949-724-6676.

Jeffrey Open Space Trail Bicycle & Pedestrian Bridge Freeway Impacts

Civic Center Parking Lot Rehabilitation

The City continues to make improvement to the Irvine Civivc Center Parking Lot. Phase 2 of the project, which is underway, includes upgrading the storm drain system and installing water quality units, underground conduits for the future carports, and concrete curb for new planter areas.

Phase 2 will impact approximately 150 spaces in both the Civic Center and Irvine Child Development Canter (ICDC) parking lots for approximately the next four weeks, weather permitting. Work is being done Monday through Saturday from 7 a.m. to 7 p.m. Additional parking is available off of Harvard Avenue and San Juan.

Access to City Hall and ICDC will be maintained while work is being done.

The parking lot will be improved in six phases to minimize the impact on our community and staff accessing the Civic Center. Once the entire lot is paved, it will be treated with Cool Pavement and restriped as we get ready for solar carports to be installed in 2026.

The entire project is expected to be completed in July.

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

SR-55 Improvement Project – Northbound Dyer Road
Off-Ramp Extended Closure

Orange County Transportation Authority crews will be removing and pouring concrete along the northbound State Route 55 (SR-55) Dyer Road off-ramp, which will require an extended closure of the ramp on northbound SR-55 between MacArthur Boulevard and Dyer Road.

The off-ramps are expected to be closed Tuesday, April 1, at 9 p.m. through Thursday, April 10, at 5 a.m.

Detour signs will be posted in advance. Motorists are encouraged to plan ahead before traveling through the area. View the latest closures and detours.

Nightly Closure: Southbound State Route 133

Overnight closures of the southbound State Route 133 (SR-133) connector to the northbound I-5 Freeway continue through Friday, March 28, from 9 p.m. to 5 a.m.

DETOUR: Exit on Irvine Boulevard and turn right. Turn left on Sand Canyon Avenue and turn right to take the on-ramp to northbound 5.

Overnight closures of the southbound State Route 133 connector to the northbound I-405 Freeway will be in place Friday, March 28, through Monday, March 31, from 10 p.m. to 5 a.m.

DETOUR:

  • From southbound SR-133 to northbound I-405: Take southbound I-405. Exit at Irvine Center Drive. Turn left onto Irvine Center Drive. Follow signs to northbound I-405.
  • From Barranca Parkway: Take Barranca Parkway north. Turn left onto Sand Canyon Avenue Follow signs to northbound I-405.

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.