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In mid-December, crews are planning to demolish the concrete barrier along both sides of the SR-55 bridge over Dyer Road to accommodate the freeway improvements. Additional information will be provided in future communications.

Crews are scheduled to sweep the outside lanes in both directions of the freeway on Friday, Nov. 22 beginning at 9 a.m. No traffic impacts are expected during this work. Look out for a cleaner corridor!

Bookmark the closures and detours map for quick access to real-time construction information. Click on the construction icons to view activities and closures.

OCTA, in cooperation with Caltrans, is improving 4 miles of SR-55 between I-405 and I-5. The project will improve traffic flow and reduce travel time by adding one regular lane and one carpool lane in each direction. Also, the project will add merge lanes between several interchanges and stripe carpool lanes for continuous access, augmenting safety on the freeway by making merging easier. These enhancements are expected to create a better, smoother driving experience for motorists.