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Mudslide Triggers Full Closure of Topanga Canyon Blvd. at Pacific Coast Highway

A SigAlert was issued after a mudslide near Malibu on a rainy Friday morning triggered the closure of Topanga Canyon Boulevard, authorities said.

State Route 27 was covered in mud after a slide on March 2, 2018. (Credit: KTLA)

State Route 27 was covered in mud after a slide on March 2, 2018. (Credit: KTLA)

All lanes of State Route 27 were shut down between PCH and Grand View Drive shortly before 10 a.m. because of a slide that left the roadway covered in mud and rocks, according to the California Highway Patrol's incident log.

The slide occurred on Topanga Canyon Boulevard, according to CHP Officer Elizabeth Kravig. She said the closure began on PCH but didn't impact the highway.

CHP's Moorpark office initially tweeted that all lanes of PCH were shut down before providing updated information on the social media platform.

Crews are working to clean up the muddy roadway, but it was not expected to reopen until at least 6 a.m. Saturday.

About two hours before the mudslide, the National Weather Service noted an increase in rainfall intensity in Malibu and the Santa Monica Mountains.

KTLA's Jennifer Thang contributed to this story.