Commuters traversing the San Fernando Valley and West Los Angeles should prepare for significant adjustments to their typical travel patterns. Following a weather-related postponement of the April 10–13 window, Caltrans has officially rescheduled the Northbound I-405 lane reductions, part of the Pavement Rehabilitation project, for the latter half of the month.
This $143.7 million infrastructure investment is designed to fortify a 10.2-mile segment of the primary corridor, ensuring long-term structural integrity and smoother transit through the Sepulveda Pass.
April 2026 work windows
Caltrans will implement two 55-hour extended weekend work windows. Motorists should anticipate significant delays during the following times:
- Rescheduled Window 1: From 10 p.m. Friday, April 17, through 5 a.m. Monday, April 20.
- Rescheduled Window 2: From 10 p.m. Friday, April 24, through 5 a.m. Monday, April 27.
Essential closure and lane data
Caltrans recommends you to allow for extra travel time or consider alternate routes to ensure a smooth trip. If flexibility is an option, traveling earlier in the evening on Friday or waiting until Monday morning is your best bet for a stress-free drive.
The following restrictions will be in effect specifically for the Northbound direction. Southbound lanes remain fully operational and unaffected by this particular phase of the project.
Lane Reductions
- Segment: Skirball Center Drive to Ventura Boulevard.
- Capacity: Total Northbound capacity will be restricted to three active lanes.
Strategic Ramp Closures
Two high-traffic access points will be entirely closed to facilitate deep-lane pavement replacement:
- Skirball Center Drive on-ramp to Northbound I-405.
- Northbound I-405 off-ramp to Getty Center Drive.
How to navigate the closure
The Sepulveda Bypass: For those traveling North, use Sepulveda Boulevard as your primary surface street alternative. You can re-enter the Northbound I-405 at the Greenleaf/Ventura Blvd on-ramp.
Live Traffic Updates: Before heading out, consult the Caltrans Quickmap for real-time data on closures, traffic speed, and active work zones.
