Major Closures On 4 LA Freeways To Cause Traffic Headaches This Week

Here's when the worst closures are expected and what drivers can do to avoid getting caught in the backups.

By Chris Lindahl, Patch Staff

Oct 26, 2026 12:22 PM PDT | Updated Oct 26, 2026 1:02 PM PDT

The 405 construction will involve closures on the Westside, in the Sepulveda Pass and in the San Fernando Valley from 9 p.m. to 6 a.m. Monday through Friday. (Paige Austin/Patch)

LOS ANGELES, CA — Overnight construction will shut down lanes and ramps on the 101, 134, 170 and 405 freeways this week, which authorities expect to cause traffic delays for motorists in Hollywood, the Westside and those heading in and out of the San Fernando Valley.

The 405 construction will involve closures on the Westside, in the Sepulveda Pass and in the San Fernando Valley from 9 p.m. to 6 a.m. Monday through Friday:

405 Lane Closures

Up to two lanes of the northbound freeway will be closed between Sepulveda Boulevard and Victory Boulevard
Up to four lanes of the northbound freeway will be closed between Wilshire Boulevard and Skirball Center Drive/Mulholland Drive
Up to five lanes of the northbound freeway will be closed between Skirball Center Drive/Mulholland Drive and Sepulveda Boulevard

405 Ramp Closures

The Getty Center Drive off/on-ramp to the northbound 405 will be closed
The Sepulveda Boulevard off/on-ramp to the southbound 405 will be closed
The Burbank Boulevard on-ramp to the southbound 405 will be closed

405-101 Connector Closures

The northbound 101 Freeway connector to the southbound 405 will be closed
The southbound 101 connector to northbound 405 will be closed

Additionally, the speed limit will be reduced to 55 mph in certain sections along the northbound and southbound sides of the freeway due to the construction.

Construction has been underway on the 405 Freeway in and near the Sepulveda Pass since June 2025 as part of the I-405 Pavement Rehabilitation Project, a $143.7 million project to improve safety and mobility along the freeway and extend the life of its pavement, according to Caltrans.

101, 134 And 170 Closures

Meanwhile, another round of major overnight closures on the 101 Freeway through the Cahuenga Pass will also impact the 170 and 134 freeways, with multiple lanes, ramps and key freeway connectors shutting down throughout the week. Read full details about those closures here.