Two Caltrans projects will close lanes, ramps and freeway connectors overnight in Los Angeles County through Saturday morning, Oct. 24, 2026. They are paving on U.S. 101 in the Cahuenga Pass and sign rehabilitation on State Route 91 between Gardena and Cerritos.
Both projects continue for years, so similar closures will probably return in later weeks.
U.S. 101 in the Cahuenga Pass
The Caltrans notice of Oct. 16 lists overnight closures between Highland Avenue and State Route 170. Northbound, up to three lanes close from about 10 p.m. to 6 a.m. Southbound, up to two lanes close from about 9 p.m. to 5 a.m. Several connectors close fully, mostly from 11:59 p.m. to 6 a.m., and Friday night closures run later.
Marked detours use Vineland Avenue, Moorpark Street, Tujunga Avenue, Riverside Drive, and Cahuenga and Lankershim boulevards. The $24.3 million project repaves lanes, ramps and shoulders and upgrades 23 curb ramps. Chumo Construction is the contractor, and work is expected to finish in summer 2029.
State Route 91 sign rehabilitation
On a 14.7-mile stretch of SR-91, the Caltrans notice of Oct. 15 says crews will work weeknights from Oct. 19 to 23. Up to three lanes close in each direction in places, generally between 8 p.m. and 6 a.m. Several connectors to I-110, I-605 and I-710 close overnight, and many ramps in Compton, Long Beach, Paramount, Downey and Carson close for the night.
The Main Street off-ramp in Carson also closes during the day, from 9 a.m. to 3 p.m., for paving. Two westbound ramps in Compton and Long Beach are closed for bridge demolition. The $34 million project replaces signs and lighting, and it is expected to finish in summer 2029.
How to plan a late-night trip
- Check Caltrans QuickMap before you leave, because closures can move between work zones.
- Allow extra time if you use a connector late at night.
- Follow the posted detour signs rather than a navigation app alone.
Caltrans says schedules may change with weather or operations. Nearby residents may hear noise and feel vibration while crews work.
More local travel updates are in our Los Angeles guides.