News Details

55 on the 405

New Speed Limit

55 on the 405

 The new speed limit was implemented in early October for the safety of the traveling public and crews during construction of the I-405 Improvement Project. The signs warning motorists of the new 55 mph are installed on the northbound and southbound sides of the freeway in the project area, and on all on-ramps between I-605 and Fairview Road in Costa Mesa. 

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 traffic fines to be doubled for violations that occur in highway work areas.

So remember, 55 on the 405, and slow down for everyone's safety!