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Week of Nov. 17, 2025

Haga clic aquí para ver esta informacíon en español.

Northbound SR-55 Outside Lane

Extended Closure

Crews are expected to repave the outside lane on northbound SR-55 between the Dyer Road off-ramp and Warner Avenue bridge. This work will require an extended closure of the outside lane on northbound SR-55 beginning as soon as 9 p.m., Friday, Nov. 21 to 5 a.m., Monday, Nov. 24. The HOV lane will be open to all motorists as a general-purpose lane to help avoid any traffic impacts.

Rainy Day Driving Tips

Rainy conditions can make roads slick and reduce visibility, so it’s important to stay alert and adjust your driving habits.


🚗 Slow down and allow extra space between vehicles.

💡 Turn on your headlights to improve visibility.

🚫 Avoid sudden braking or sharp turns.

🛣️ Stay in the middle lanes when possible


Share these tips to help everyone stay safe on the road this rainy season!

Focus on 55 Business Program

Do you own a small business in Orange County, or know anyone who does? OCTA’s Focus on 55 program aims to promote and support eligible businesses in Santa Ana, Tustin, and Irvine by encouraging customers to shop local!


Join over 70 businesses in this free

program by registering your business

at octa.net/Focuson55.

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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octa.net/SR55South

888-371-2555

SR55Info@octa.net

@55FWYProject