I-405 Wilshire Off-Ramp to Close for 2 Weeks

The southbound 405 Freeway off-ramp to westbound Wilshire Boulevard will close for two weeks starting Friday night, Metro officials announced Monday.

During the 14-day closure, crews will tear down and rebuild the ramp—the third of eight Metro is demolishing and reconstructing to alleviate traffic jams and make the interchanges safer.

Metro has warned the closures—dubbed "Ramp Jam" and "Rampture"—will cause back-ups.

The westbound ramp from the southbound 405 is scheduled to close 8 p.m. Friday and open by 6 a.m. March 22. In the meantime, there is a detour: Santa Monica Boulevard exit eastbound to Sepulveda Boulevard to Wilshire.

The new ramps are "seismically updated and [have] higher capacity," according to the Los Angeles County Metropolitan Transportation Authority.

"The project will reduce the vehicular conflicts between Wilshire Boulevard and the I-405," Metro said in a press release. "This should reduce backup at other north/south streets, and bring capacity to meet expected vehicle demands in 2031."

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The first of the Ramp Jam closures—the westbound Wilshire Boulevard on-ramp to the northbound 405 and the northbound 405 off-ramp to westbound Wilshire Boulevard—started in June of last year. Those ramps re-opened before the anticipated three-month construction schedule.