Updated 3:30 p.m.
FAIRBANKS - An overturned truck near the northern end of the Dalton Highway is blocking the northbound lane of the highway, the main supply route for Alaska's North Slope oilfields.
The truck is blocking the road at 325 Mile, at a spot called Ice Cut on the flats north of the Brooks Range about 90 miles from the highway's end at Deadhorse. It may be 24 hours before a tow truck can make it to the area, according to the Alaska Department of Transportation. There may be traffic delays in the meantime.
Elsewhere on the Dalton, winter storms are continuing to make travel difficult.
More snow was falling Thursday morning between mileposts 240-284 at Atigun Pass and was being blown and drifted by strong 30-40 mph winds, according to DOT. Driving conditions are very slick and chains are required through the pass. Visibility is limited. Travelers are advised to drive with caution and keep their headlights on.
The advisory is good through Friday morning.