The work also includes replacing two overhead sign structures and 98 sign panels, upgrading 6,400 feet of guardrail and upgrading 10 curb ramps. The project does not involve widening the freeway.
Drivers are already being asked to slow down through portions of the construction zone. Caltrans has temporarily reduced the speed limit to 55 mph in certain sections of the northbound and southbound 405 because of paving operations and uneven pavement. And next week’s closures won’t be the end of the disruption.
Caltrans has already announced another round of extended lane reductions Sept. 11-14, when the southbound 405 will be reduced to three lanes between Ventura Boulevard and Mulholland Drive.
Caltrans said closure schedules are subject to change because of weather and operational conditions. Residents and businesses near the construction may experience noise, vibrations and dust.