Caltrans Issues Advisory for Motorist During Power Outages

Published: Jan 07, 2025

District: District 11 - San Diego and Imperial Counties
Contact: Mayra Garcia
Phone: (619) 688-6670

SAN DIEGO - The California Department of Transportation (Caltrans) is notifying the public that power companies may conduct Public Safety Power Shutoff (PSPS) during high wind events to prevent wildfires. During this time, at-risk power lines will be shut off in rural and urban areas.

Power outages can impact traffic signal operations, with signals initially flashing and potentially going dark after extended outages. Caltrans urges motorist to stay vigilant and be prepared during PSPS.

During power outages, traffic signal on state routes in San Diego and Imperial Counties will operate as follows:

Signals will function normally for approximately three hours after an outage begins.

They will then switch to "red flash" mode for an additional three to six hours.

If the outage last more than six hours, signals will enter "blackout mode."

When traffic signals are in "blackout mode" with no lights showing drivers must treat the intersection as a four-way stop. Stop and proceed only when it is safe. Drivers are advised to refer to the DMV Driver's Handbook for detailed guidance. California Vehicle Code Section 21800 (d) (1) states: "The Driver of any vehicle approaching an intersection which has official traffic control signals that are inoperative shall stop at the intersection and may proceed with caution when it is safe to do so."

Caltrans urges motorist to exercise extreme caution and patience during outages. Be vigilant of other driver and their movements.

Motorists are reminded to be Work Zone Alert if traveling in the area and to watch for highway workers and moving construction equipment.

The work schedule is subject to change due to weather conditions, traffic incidents, or other work-related reasons.

For real-time traffic information, including traffic speed, lane and road closures due to construction and maintenance activities, and more, go to http://quickmap.dot.ca.gov/

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