Caltrans will implement a 55-hour extended weekend closure Jan. 17-19 of Topanga Canyon Boulevard/State Route 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.
Southbound SR-27 traffic should take U.S. 101 to southbound Interstate 405, then westbound Interstate 10 to northbound State Route 1 (Pacific Coast Highway). Northbound SR-27 traffic should take southbound SR-1 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 debris flow on the highway in future storms.
The 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.
The work is part of ongoing recovery efforts from the Palisades Fire and winter storms. Caltrans crews are working to restore SR-27 and remove traffic restrictions 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 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.
Edited by SMDP Staff