Octa's transportation blog

Slow Down for Safety in the I-405 Improvement Project Area

As construction on the I-405 speeds up, motorists are cautioned to slow down.

Crews have installed 55 mph speed limit signs on I-405 through the project area, which includes 16 miles between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line. The new signs formally reduce the speed limit from 65 mph to 55 mph for the safety of the traveling public and the construction crews.

The new signs, which will be in place for the duration of the project, allow the California Highway Patrol to enforce the lower speed limit. 

Caltrans advises motorists to slow down and proceed with caution whenever signs of highway work are present. This will significantly reduce the potential for incidents on the freeway. Also, motorists whose vehicles become disabled should pull off at the nearest exit if possible.

Additionally, state law allows for the doubling of traffic fines for violations that occur in highway work areas.

The I-405 Improvement Project will improve between the SR-73 freeway in Costa Mesa and I-605 near the L.A. County line. The project includes adding one regular lane in each direction between Euclid Street and I-605 and making improvements to freeway entrances, exits and bridges. In addition, the project will add the 405 Express Lanes, incorporating the existing carpool lanes and a new lane in each direction between SR-73 and I-605.

For more information about the I-405 Improvement Project, bridge demolitions, and detours, click here.

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