The road is in one of the areas in southern and central Utah where the National Weather Service had predicted flash flooding would occur.
Heavy rains caused Huntington Creek, near the Seeley Fire burn scar in northwestern Emery County, to rise several feet, according to the weather service. Flooding had also been expected until about 5 p.m. in west central Carbon County due to the heavy rain from thunderstorms.
Flash flood warnings also were issued for eastern Kane County and southwestern San Juan County until about 5:15 p.m.; and for central Kane County until about 9:30 p.m.
An additional flash flood warning in southeastern Kane County proved warranted, where a National Park Service employee reported flash floods in the town of Big Water, including car-sized boulders in the waters.
No one had been reported injured, the NWS officials said.
The weather forecasters warned motorists not to drive into areas where water covers the road because the depth may be too great to allow passage.