U.S. Highway 101 is closed about 12 miles south of Port Orford after an early morning landslide. The landslide caused a roughly 200-yard segment of highway to drop as much as 12 feet in some spots.

U.S. 101 remains closed this afternoon near the landslide while our geotechnical engineers evaluate the scene and watch for additional movement.

We do not have an estimate yet for when the highway may reopen. There is no local detour on this stretch of U.S. 101. This closure applies to emergency services, too.

Hwy 101 landslide 9 a.m. 1-9-23

Our crews first noticed landslide activity on Jan. 2, when large cracks formed in the pavement. The cracks were patched, but by Friday, a sunken hole had formed in the northbound lanes, prompting a lane closure and 24-hour flagging for traveler safety.

Around 3 a.m. Monday, a larger section of U.S. 101 sank about five feet, and we closed the highway. U.S. 101 continued to drop through mid-morning, although movement has slowed as of noon.

Active landslides are common on the south coast. We monitor multiple active landslides between Port Orford and Ophir. This active landslide, known as the “Arizona Slide,” has had events like this since the 1980s. The last big Arizona Slide event occurred in 1993 and closed U.S. 101 for over a week.

Hwy 101 landslide 9 a.m. 1-9-23

Previous Coverage:

U.S. 101: all lanes of U.S. Highway 101 are closed 12 miles south of Port Orford (MP 312) due to a landslide beneath the road.

This will be a long closure.

More Info Here

Hwy 101 landslide 9 a.m. 1-9-23
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