Sepulveda Boulevard will close from Montana Avenue to Church Lane tonight, Sept. 20, to Monday, Sept. 23

Here’s a reminder about a closure on Sepulveda Boulevard, starting tonight. Sepulveda Boulevard will be closed in both directions between Montana Avenue and Church Lane, starting at 10 p.m. tonight, Friday, Sept. 20, and continuing until 5 a.m. Monday. Sept. 23. The closure is required so that heavy equipment can be staged to begin installation of girders for the northbound Sunset off-ramp, which is now under construction as part of the I-405 Sepulveda Pass Improvements Project.

No ramps other than the already closed northbound I-405 Sunset Boulevard off ramp will be closed.

And here’s the detour: If traveling northbound on Sepulveda, take a left on Montana, a right on Church Lane (which circles under the freeway and back to Sepulveda) and then a left on Sepulveda. Reverse these instructions if traveling southbound on Sepulveda.

For additional project info or to obtain detour maps, visit  Follow the project on social media at and For real-time traffic conditions, visit Caltrans web site at