Here's the news release from Metro:
The I-405 Sepulveda Pass Improvements Project contractor is scheduled to conduct a full northbound I-405 freeway closure from Santa Monica Boulevard to Wilshire Boulevard in West Los Angeles beginning Thursday night, May 16 2013 from 12 a.m. to 5 a.m.
The full northbound freeway closure is scheduled to conduct repaving and striping activities to facilitate widening of the roadway.
• Detour: Exit at the Santa Monica Boulevard off-ramp, right on Santa Monica Boulevard, left on Sepulveda Boulevard, right on Wilshire to the northbound I-405 on-ramp.
• CHP will be monitoring the area surrounding the closure.
What to expect:
• Construction schedule is subject to change based on daily progress and field conditions.
• Notification of ramp closures will be provided on a daily basis through the PM Closure e-mail notices. Subscribe to daily e-mail alerts at http://www.metro.net/405.