Starting January 2nd and lasting approximately 8 months, the Malibu Canyon Road tunnel will be closed for construction from 9 p.m. to 5 a.m. 5 nights a week, Sunday nights to Thursday nights (until 5 a.m. on Friday mornings). The tunnel will remain open weekdays between 5 a.m. and 9 p.m as well as all day on weekends (until 9 p.m. Sunday night).

During these closures, Malibu Canyon Road traffic will be detoured onto Kanan Dume Road and Topanga Canyon Boulevard.

Los Angeles County Public Works is undertaking this massive 7 month project in order to improve the tunnel’s interior lining by replacing steel plates inside of the tunnel. Other improvements will be made to the roadway in order to improve road safety and driver comfort. The project will also bring water quality benefits with the construction of a vegetated swale, which will filter pollutants from storm water and help replenish groundwater supplies.

For more information, visit the LA County Public Works website at dpw.lacounty.gov/pdd/proj/MalibuTunnel.