LOS ANGELES – Caltrans reminds motorists that the section of Topanga Canyon Boulevard/State Route 27 (SR-27) between Pacific Coast Highway (PCH) and just south of Grand View Drive remains an active work zone as crews complete recovery work following the Palisades Fire and winter storm damage.
Caltrans is operating one-way traffic control with a pilot car for four-tenths of a mile just south of the community of Topanga. This closure operates from 5 a.m. to 11:59 p.m. daily.
The 3.6-mile stretch of SR-27 between PCH and Grand View Drive remains closed to the traveling public between midnight and 5 a.m. daily.
Southern California Edison is also operating one-way traffic control from just north of Topanga Library, to Happy Trail, about 2.4 miles. This runs from 8:30 a.m. to 5:30 p.m. daily.
For the safety of workers and one another, motorists must obey the 25-mph speed limit in the work zones, along with any posted signs and traffic controllers. There is no parking, no stopping and no pedestrians allowed in the work zone.
Caltrans crews have placed “one-lane road” signs and rumble strips leading up to the Caltrans closure, and SCE has added message signs ahead of its one-lane section.
Motorists are advised to take extra caution throughout the work zones, especially around blind curves in case there is stalled traffic waiting to go through the one-way sections.
Caltrans reminds motorists that traffic fines can be doubled in a work zone.
All SR-27 users on this stretch of highway should be aware that this highway is not operating at normal capacity, and due to the nature of the winding road through a canyon, there is minimal space for motorists and workers to safely share the road.
Drivers and bicyclists should proceed with caution, plan for extra travel time and are encouraged to seek alternate routes wherever possible. All users should expect delays. View current traffic conditions by visiting the Caltrans Quickmap.
This 3.6-mile stretch of highway suffered major damage from the Palisades Fire and subsequent winter storms, including damaged storm drains, culverts, roadway signs and guardrail as well as slope stability features.
Caltran’s SR-27 emergency repairs project is estimated to cost at least $14.5 million, which is expected to increase. Since January, completed work includes:
· Removing more than 35,000 cubic tons of mud and debris
· Replacing damaged roadside signs
· Repairing eroded embankment/slopes at multiple locations
· Installing temporary K-rail to supplement areas with burned guardrail
· Installing debris flow barriers, a type of netting to catch mud and debris flow before it hits the highway and drainage culverts, at multiple locations
Current work happening inside the one-way traffic control area includes culvert repair and building two retaining walls. It is estimated to be completed in spring 2026, but that is subject to weather this winter and other changing conditions.
Caltrans posts SR-27 updates on its social media pages including Instagram, X (formerly Twitter) and Facebook . More information can be found on the Caltrans SR-27 emergency project website. Weekly road closures are posted at the Palisades Fire Emergency Repairs website.