Photo provided by Caltrans.

UPDATE, Monday 11:15 a.m.:

Caltrans has begun to clear the landslide on Route 299 near Big Bar.

According to a Caltrans Facebook post, one-way traffic could be opened up by noon.

Traffic control will only been effect during daylight hours, and drivers should expect one hour delays.

The highway will be shut down again at night.

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UPDATE, Sunday 11:30 a.m.:

Caltrans reports that the rockslide on Highway 299 near Big Bar is still “very active,” and unsafe for crews to begin clean up. The slide is estimated to be large enough to fill 120 dump trucks, and is still growing.

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Screenshot of Caltrans QuickMap.

All lanes of Highway 299 have been closed due to an active slide near Big Bar.

There is no estimated time for when the roadway will be cleared. The California Highway Patrol reports this will probably be a long term closure as conditions are too dangerous to send cleanup crews to the scene. 

The roads will be cleared when the sliding subsides.