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405 Freeway closures in Sepulveda Pass: Oct. 17-19

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Published  October 16, 2025 8:03am PDT
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FOX 11
405 Freeway closures continue this weekend

405 Freeway closures continue this weekend

The closures are part of a larger $143.7 million pavement rehabilitation project to improve safety and extend the freeway's life.

The Brief

    • The 405 Freeway through the Sepulveda Pass will have weekend lane closures and reductions in both directions for paving work.
    • The closures will last from 10 p.m. Friday to 5 a.m. Monday and will affect traffic from Santa Monica to Wilshire boulevards.
    • The closures are part of a larger $143.7 million pavement rehabilitation project to improve safety and extend the freeway's life.

LOS ANGELES - If you plan on taking the 405 Freeway through the Sepulveda Pass this weekend, plan accordingly as weekend lane closures are planned in both directions again.

Lane reductions, closures

What we know:

Paving work will start at 10 p.m. Friday, Oct. 17 through 5 a.m. Monday, Oct. 19. 

Motorists traveling along the 405 Freeway will experience the following lane reductions and closures:

Northbound Interstate 405 

  • Northbound I-405 will be reduced to three lanes between Santa Monica Boulevard to just north of Sunset Boulevard.
  • Santa Monica Boulevard on-ramp closed.
  • Sunset Boulevard on-ramp will be open.

Southbound Interstate 405 

  • Southbound I-405 will be reduced to three lanes just north of Sunset to Wilshire boulevards.
  • Sunset Boulevard/Church Lane on/off-ramp closed.
  • Southbound I-405 off-ramp to Eastbound and Westbound Wilshire Boulevard closed.

What are alternate routes?

Local perspective:

  • Santa Monica Boulevard to northbound 405: Travel east on Santa Monica Boulevard and north on Sepulveda Boulevard to the on-ramp to northbound 405 at Moraga Drive
  • Sunset Boulevard to southbound 405: Travel north on Church Lane, south on Sepulveda Boulevard, west on Wilshire Boulevard to the on-ramp to southbound I-405

I-405 Pavement Rehabilitation Project

Big picture view:

This is all part of the I-405 Pavement Rehabilitation Project between Van Nuys and Westwood. The $143.7 million project aims to improve safety and mobility along the heavily-trafficked freeway and extend pavement life.

Caltrans officials said extended weekend lake closures and reductions will happen about every two weeks along various sections of the 405.

The schedule is subject to change depending on weather or operational reasons.

Residents and businesses near the construction zone may experience noise, vibrations, and dust associated with the construction activities. 

To learn more about the project, tap or click here.

The Source: This information is sourced directly from Caltrans, the state agency responsible for the project. Details on lane closures, alternate routes, and the overall scope of the $143.7 million I-405 Pavement Rehabilitation Project are explicitly provided by Caltrans and are publicly available through their press releases and project information.

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