Hi there! I'm going to drive from Seattle, WA to Driggs, ID these weekends and struggling in choosing which route to take:
1) I-90E - I-15S
2) I-90E - I-82E - I-84E - I86E - I-15N
The main concern is road condition in the mountains. Looking at the map it seems that second route (I-84E) doesn't have so long mountains miles as I-90E does. But I have not driven either of them, so have no idea how things are in the reality.
According to http://511.idaho.gov/, both way are clear now (but I-90 had some blue parts in the morning). What do you think?