Closer to 1 vehicle every 5 seconds
1. It would be hard to find any day of the year (and any time of the day) when you could be "alone" on I-70 between Kansas and Las Vegas. Much of the time you will be traveling in a moving traffic jam. I suppose it might be possible to find stretches of the road (in the middle of the night) when you only see 10 vehicles in a minute -- but that is extremely unlikely. So, yes you will have plenty of company on that route.
2. I-70 is one of the best conditioned roadways in the Interstate Highway system. Like all highways, parts of it are under near-constant repair and renovation.
3. Snow is always possible in November, but so far we are still in the midst of prolonged drought in the west. So shouldn't be too much of a concern.
4. While you may be able to drive in real time ~ 70 mph, it is nearly impossible to average much faster than 54 mph over the course of a day of driving, (unless you drive closer to 100 mph -- which is crazy by any standard).
5. The driving time is within range -- although you will probably be driving closer to 8 hours per day. I have personally done coast-to-coast in three days a number of times, but it is brutal. Eight days is far more relaxed and will allow time to look at the landscape as it goes by.
6. Denver to Las Vegas in one day is real tough. You will be crossing the continental divide and driving through some of the most spectacular mountains in North America -- are you sure you wouldn't like to slow down and enjoy the views? Beyond that, it is nearly 770 miles and the fastest you could cover this distance is 13 hours, if you stop only for fuel and the road is clear and dry.
M.
Thank you Mark for your suggestions.
I'll make some adjustments and try to plan the trip well.
Best wishes!
coast to coast in THREE DAYS !
that is serious
how many drivers? or just you M?