Zion NP schrieb:

The Zion- Mount Carmel Highway Tunnel is closed to all vehicles.There have been a series of rockfalls close to, but not on, the road approaching the tunnel from the west. The area of the rockfall is closed for maintenance.

Zion NP schrieb:

A continuous stream of heavy sand and rock debris is falling near the west tunnel entrance along the Zion Mount Carmel Highway. Park officials have assessed the falling debris and decided to close the road until hazard geologists, from the Utah Geological Survey can be on site for further evaluation. The road will reopen once the fall has stopped and officials deem it safe.

Zion NP schrieb:

Update: The Zion Mount Carmel highway is now open to normal traffic operations. For your safety, stopping or standing is prohibited in the area!