I use this DOT website
to scout road problems along my planned routes. Right now, it shows a delay in a construction zone near exit 260 of 4 minutes @ 35 MPH. When the road section is highlighted in yellow, place cursor on that spot and further information appears.
From what I've heard, I 70 isn't much better than I 40 this summer, construction to repair bad sections on both interstates.
I would allow extra driving time for that area, and reduce speed to fit road conditions.
OTOH, since you're leaving from Fl., how does I 20 fit into your plans,at least until you've gotten West of Little Rock AR.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"