The cause is not related to weather and may be a geologic event.
PAGE, Ariz. (AP) - A stretch of U.S. 89 in northern Arizona is closed in both directions because of a pavement problem about 25 miles south of Page.
The Arizona Department of Transportation says traffic will detour around the closure by using U.S. 160 and State Route 98, adding 45 miles of driving.
Northbound traffic on U.S. 89 can't go past U.S. 89A, which takes traffic west toward Jacob Lake. Southbound traffic on U.S. 89 can't go past the junction with State Route 98 in Page.
ADOT says what caused a 150-foot section of pavement to buckle is not related to the weather and might be what ADOT calls a "geologic event."
According to ADOT, it isn't known how long the stretch of U.S. 89 will remain closed south of Page.