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Week of March 17, 2025

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Dyer Road Construction Activities and Closures

Northbound SR-55 Dyer Road Off-Ramp Extended Closure

The Dyer Road off-ramp is expected to close from 9 p.m. Friday, March 14 to

5 a.m. Monday, March 17 for pavement work. The outside lane on northbound SR-55 will also be closed during this time.

Pile Driving Update

To accommodate ongoing pile driving operations, crews are expected to temporarily close the outside left-turn lane on eastbound Dyer Road, as well as the outside lane on northbound Grand Avenue beginning as soon as Monday, March 24 for approximately two weeks. 

Closures and Detours Map

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

About the Project

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.

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