Road restrictions on our route?

I had to chuckle when I read that you're going to Letchworth SP in your Toyota Class C. I retired in 2005 and bought a 1986 Toyota/Dolphin Class C on my way home from my last day at work. After some time refurbishing it, the very first trip we took was to Letchworth SP. The Toyota is now enjoying life with a nice woman in Massachusetts, but we'll be going back to Letchworth in a couple of weeks with our current Class A. Thanks for the memory! :)

Those are commonly used secondary routes for truckers. There are no restrictions for motorhomes on them. There are a few hills and curves, but it's all quite workable for most any vehicle and certainly a small class C motorhome. (You might be a bit slow on some of the hills, but I assume you're somewhat used to that already.) I don't know specifically of current construction, etc. concerns but would not expect significant problems, and for sure there would be reasonable detours suitable for large vehicles as needed.

A hint: when going from I-87 to I-90, pay attention to keep to the righthand lane. The righthand of the two lanes that exit for I-90 is also a merge lane from the previous interchange, and pretty soon after the exit from I-87 this righthand lane has the I-90 West entrance split off from it (and both exit lanes continuing on for I-90 East). The signs don't give a whole lot of warning for the I-90 West lane specifically, and merging over quickly can be tricky if there's much traffic.

Check out Waze.com. I think it is supposed to show road conditions but have only used it once.

We've done 9 to 7 a few times in the past with a 45' and a toad. No problems. If you're asking about current conditions like road closures, I have no idea.

Check with the state hwy website betterinfo than here and please a Toyota Rv makes every present Class C look like a mansion on wheeles.

So, there is indeed a Toyota motorhome. I thought it's just a stuff of legend in the RV world.

Sorry, for the joke (no, I've not been to the route you mentioned and I intend to avoid NY at any cost when I happen to swing by). Went back to hiring company's limo service after attempting to rent an SUV to move around and see some sights.