If I am going east as far as Breezewood, I will gladly spend the extra 20 minutes on U.S. 30
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In the winter when the snow flies, I think many people would be freaked out driving on U.S. 30 for the first 15/20 miles to the east of Breezewood.
It isn't that bad in the daytime if you were raised in North Dakota as I was . . .
Plus the people who freak out don't drive it, so less traffic.