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City of Santa Ana
Thursday September 19th, 2019 :: 04:45 p.m. PDT


Closure Tonight on Southbound SR-55 to Southbound I-405

The California Department of Transportation (Caltrans) will close the southbound SR-55 to southbound I-405 connector tonight Thursday, September 19, from 10:00 p.m. to 3:00 a.m. for emergency guardrail work. Motorists will be diverted to the Baker Street off-ramp. From Baker Street, one can make a left on Red Hill Avenue and continue to the southbound I-405 on-ramp.

Caltrans appreciates the public’s patience while performing the work. Electronic Changeable Message Signs will be displayed to notify drivers of the closure. Additionally, work updates will be available via
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The work schedule is subject to change due to traffic incidents, weather, availability of equipment and/or materials, and/or construction-related issues. For more information, you may contact the District 12 Public Information Office at (657) 328-6000.

City of Santa Ana
20 Civic Center Plaza
Santa Ana, CA 92701

Emergency: 9-1-1
Non-emergencies: 714-647-5200

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