Road Construction & Improvement Projects

September 18-25, 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.

Cadence Class IV Protected Bikeway 

The City of Irvine is making improvements to the City’s bicycle infrastructure with the construction
of Class IV protected bikeway, a bikeway reserved for use by bicyclists with a physical
separation between the bikeway and travel lanes. Work will be done to construct a protected bikeway on Cadence, between Chinon and Radial, Monday, September 23, through Tuesday, November 12, from 9 a.m. to 3 p.m. 

Access to area residences and businesses will be maintained. The work will generate noise and travel lanes may be shifted or reduced to one-way traffic with flagging operation. No full closures are anticipated; however, drivers are advised to take alternate routes.

For more information, please email pm@cityofirvine.org or call 949-724-6676.

Overnight Lane Closures on I-405 Freeway

Overnight lane closures will take place on the I-405 Freeway between the I-5 Freeway and Bear Street Monday–Friday, from 9 p.m. to 5 a.m. through October.

This project will replace pavement slabs on the northbound and southbound I-405 Freeway. 

Please note there will be loud noise related to this construction. Please follow all posted signs and traffic instructions. The work is weather-dependent and subject to change. Additional information on the project can be found on the Caltrans website. 

Cool Pavement Coating at San Juan and San Leon

The City of Irvine is implementing an innovative pavement coating pilot program to extend the life
of City streets and reduce the pavement surface temperature. The City’s Public Works & Sustainability Department will apply a second application of DuraShield Solar Reflective Grey pavement coating to San Juan and San Leon Monday, September 23, through Friday, September 27, from 8 a.m. to 4 p.m., weather permitting. 

Access to area residences and business will be maintained and one lane in each direction will remain open while work is underway; however, delays should be expected and motorists are encouraged to take alternate routes. 

The Cool Pavement coating will reduce UV and heat damage to the underlying pavement; reduce water penetration into the pavement substrate; retain high friction in both wet and dry weather; and cure quickly. It will not affect driver glare.

For more information, please email pm@cityofirvine.org or call 949-724-6676. 

Jeffrey Open Space Trail (JOST) Bicycle and Pedestrian Bridge Project

The northbound I-5 Freeway Jeffrey Road off-ramp will be closed Monday, September 23, through Friday, September 27, from 11 p.m. to 5 a.m. to work on the Jeffrey Open Space Trail I-5 Bicycle and Pedestrian Bridge. 

There will be no access to the northbound I-5 Freeway off-ramp at Jeffrey Road. Detour signage will be in place to direct motorists. 

Detour Information:

• Exit at Culver Drive and travel east on Trabuco Road; or
• Exit at Sand Canyon Avenue and travel south, then travel west on Irvine Center Drive.

For more information on this project, please email pm@cityofirvine.org or call 949-724-6676. 

133 Toll Road Closures

The southbound 133 Toll Road connector to northbound I-5 Freeway will be fully closed through Friday, September 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.