October 29–November 5, 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.

Walnut Avenue Closure

Walnut Avenue south of Jeffrey Road will be closed Thursday, October 30, at 11 p.m. to Friday, October 31, at 5 a.m. There will be no access to the southbound I-5 Freeway on- and off-ramps or Caltrans Park & Ride during the overnight closure.

The closures are part of the Jeffrey Open Space Trail (JOST) Bicycle and Pedestrian Bridge project. Learn more about the project, which is expected to be completed in 2026. 

State Route 55 Dyer Road Loop On-Ramp 30-Day Closure

Orange County Transportation Authority crews are reconstructing the northbound State Route 55 Dyer Road loop on-ramp, which requires an extended closure of the on-ramp through Sunday, November 23, 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. 

State Route 73 Closures

The northbound State Route (SR) 73 Bison Avenue on-ramp will be closed nightly from 9 p.m. to 5 a.m. through Thursday, October 30. It will also close Friday, October 31, at 9 p.m., opening Saturday, November 1, at 7 a.m.

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.