Just towed thru there from I-35E up to I-30 and no construction in that section. I-20 east from there not sure, I know there was some but traffic has usually ran somewhat normal. Now normal on I-20 will include a parking lot on occasion, but is nothing new for a major city. I have towed thru various sections or DFW many times and it is really not that big a problem, just take your time and keep a cushion. Our interstates including the freeways thru the cities are usually wider then a lot of places which makes it nice.