The weekend closure will allow crews to quickly complete a pipe installation without slowing down emergency repairs
TOPANGA – Caltrans announces a 55-hour extended weekend closure Jan. 17-19 of Topanga Canyon Boulevard/State Route 27 (SR-27) from Pacific Coast Highway to Grand View Drive to install an 84-inch reinforced concrete pipe underneath the highway.
The work will start as early as 12:01 a.m. Saturday, Jan. 17, and last until as late as 7 a.m. Monday, Jan. 19. During this time, the 3.6-mile stretch of SR-27 from PCH to Grand View Drive will be closed to the public.
North of the closure, SR-27 from Grand View Drive to U.S. 101 will remain open throughout the weekend, including access to the unincorporated community of Topanga and area businesses. Additionally, Tuna Canyon Road will remain open to southbound traffic.
Alternate Routes
- Southbound SR-27: Take U.S. 101 to southbound Interstate 405, then westbound Interstate 10 to northbound State Route 1/Pacific Coast Highway (PCH).
- Northbound SR-27: Take southbound PCH to eastbound I-10, then northbound I-405 to westbound U.S. 101.
The 84-inch reinforced concrete pipe will run underneath and perpendicular to SR-27 and is designed to carry increased capacity of water and mud during rainstorms, reducing the amount of debris flow on the highway in future storms.
This one-time closure will allow crews to quickly install the pipe without delaying other emergency repair work due to the Palisades Fire. Crews are currently working on completion of a retaining wall near postmile 2.5, within Caltrans’s one-lane traffic control section.
This work is part of ongoing recovery efforts from the Palisades Fire and winter storms. Caltrans crews are working quickly to restore the highway and remove traffic restrictions, which it hopes to do by summer 2026. However, crews are trying to make up for lost time due to storms and storm cleanup in October, November, December and January.
SR-27 from PCH to Grand View Drive is an active work zone due to these emergency repairs. It is normally closed to the public from midnight to 5 a.m. daily.
Check current traffic conditions on the Caltrans Quickmap. Caltrans District 7 also posts updates to its social media pages, including X, Facebook and Instagram.