Nebraska routes 2/385

Does anyone know what the speed limit is on route 2/385? You're right we-c-usa, I-29/I-90 would probably be the fastest route, and this might be the route we take on the return trip. But I agree with a couple of posters in that route 2/385 would be a much more scenic route without the heavy traffic which equals less stress. I realize that I am probably going to have to travel some interstate in order to make some time. But according to my route planner, going interstate all the way only saves me an hour or so. I just hate pulling the rv on the interstate unless I have to. Too much traffic, cars camping out in the left lane, too many vehicles traveling at different speeds, trucks going 50 mph up the hill and 80 down the next one, merging traffic at the on-ramps, cars cutting you off so they can take the next exit...you've all been there. I enjoy traveling with the rv, but anytime I can make it even more enjoyable by staying off the heavier traveled roads just seems to make it a much more enjoyable, less stress trip.