Southern California is constantly getting new transportation projects designed to improve connectivity, pavement conditions and safety, but that work can temporarily disrupt traffic, sometimes on some of the busiest highways in the state. This September, roughly 4 miles of the 101 Freeway and more than 5 miles of the 405 will see overnight lane closures and reductions.
101 Freeway closures in the Cahuenga Pass
Caltrans is carrying out pavement rehabilitation work along the U.S. 101 Cahuenga Pass from September 14 through September 19, with most of the disruptions happening overnight.
Monday, September 14 through Friday, September 18
- Northbound 101: Up to two lanes closed between Highland Avenue and SR-170 from 10 p.m. to 6 a.m.
- Southbound 101: Up to three lanes closed between SR-170 and Highland Avenue from 9 p.m. to 5 a.m., with up to four lanes closed from 2 a.m. to 4 a.m.
- Northbound 101 to northbound SR-170 connector: Fully closed 11:59 p.m. to 6 a.m.
- Southbound 101 to eastbound SR-134 connector: Closed 11:59 p.m. to 6 a.m.
- Southbound SR-170 to southbound 101 connector: Closed 10 p.m. to 5 a.m.
Several ramps, including Cahuenga Boulevard, Universal Studios Boulevard and Moorpark Street, will also close overnight.
Friday, September 18 into Saturday, September 19
The lane and connector closures continue, with several extending later into the morning. Northbound lane closures can run until 9 a.m., while southbound closures can continue until 9 a.m., depending on the location.
405 Freeway closures through Sepulveda Pass
The I-405 will also see extensive overnight work for pavement rehabilitation and K-rail installation as follows;
Monday, September 14 through Saturday, September 19
- Northbound 405: Up to four lanes closed between Wilshire Boulevard and Skirball Center Drive/Mulholland Drive from 9 p.m. to 6 a.m.
- Southbound 405: Up to four lanes closed between U.S. 101 and Skirball Center Drive/Mulholland Drive during the same hours.
- Multiple ramps, including Wilshire Boulevard, Sunset Boulevard, Moraga Drive, Getty Center Drive, Burbank Boulevard, Sepulveda Boulevard and Ventura Boulevard, will also close overnight.
- The northbound U.S. 101 connectors to both directions of the 405 will be closed overnight.
September 25 through September 28
A separate weekend project will reduce southbound 405 to three lanes between Ventura Boulevard and Mulholland Drive from 10 p.m. Friday through 5 a.m. Monday. The Ventura Boulevard on-ramp and Valley Vista/Sepulveda Boulevard ramps will also close, while northbound 405 will not have lane reductions.
