Caltrans Announces Northbound I-405 Reduced to Three Lanes Through the Sepulveda Pass: April 2026

Published:

This is not a comprehensive April schedule and details will be updated once confirmed.

Los Angeles — Caltrans announces extended weekend lane reductions along northbound Interstate 405 (I-405) through the Sepulveda Pass. Northbound I-405 will be reduced to three lanes and motorists are strongly encouraged to seek alternate routes and explore public transportation options to reach their destinations. Southbound I-405 will not be impacted April 10-13.

Commuters can expect extended weekend lane reductions on the following: 

  • 10 p.m. Friday, April 10, through 5 a.m. Monday, April 13

Motorists traveling along I-405 will experience the following lane reductions and ramp closures:

Northbound I-405

  • Reduced to three lanes between Skirball Center Drive and Ventura Boulevard
  • Skirball Center Drive on-ramp to northbound I-405 closed

Alternate Routes for I-405

  • Sepulveda Boulevard to northbound I-405: Travel north on Sepulveda Boulevard to the Greenleaf/Ventura Blvd. on-ramp to northbound I-405 

There will be about 25 extended weekend lane reductions for this project. Due to weather or operational reasons, the schedule is subject to change including the times and dates of closures, the number of lanes closed and other details.

Residents and businesses located near construction may experience noise, vibrations and dust associated with construction activities. Please visit the Caltrans Quickmap for current road conditions.

This work is part of the I-405 Pavement Rehabilitation Project between the Los Angeles communities of Van Nuys and Westwood along the Sepulveda Pass. This project will apply about $143.7 million toward improving the safety and mobility along I-405 between Van Nuys and Westwood as well as extend the pavement life.

For more information on the project visit the project webpage. Sign up for weekly email notifications.

Caltrans reminds drivers to “Be Work Zone Alert” and to “Slow for the Cone Zone.”

 

I-405 Extended Weekend Map April 3-6

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