Starting Monday, Sepulveda Boulevard, between Montana Avenue and Church Lane, will go down to just one lane in each direction for the next week.
Once 9 p.m. rolls around, that three-quarter-mile stretch of Sepulveda will be closed completely – until 6 a.m. the next morning.
Crews working for L.A. County Metro will be shifting that section of Sepulveda several feet to the east to make room for the new High Occupancy Vehicle lane on the northbound side of the 405 Freeway.
Metro spokesman Dave Sotero says the expansion is a major milestone for the project.
"Currently the contractor’s been doing preparation work to reach this point," Sotero said. "Once they complete this work, they will be able to start building the additional lane of traffic that’s needed as part of this billion-dollar project to widen the 405."
The project is adding the northbound HOV lane from the 10 to the 101. Once that’s finished, the 405 will have the longest carpool lane in the world, stretching 70 miles from Orange County to the San Fernando Valley. Metro hopes to have the new lane open to traffic by this time next year.
Meanwhile, this stretch of construction on the Sepulveda Pass should be completed by next Monday, December 3.
View Sepulveda Pass Construction Closures in a larger map