It seems as thought the entire Dallas interchange would have to be totally rebuilt to accommodate the new freeway. That area needs many flyovers. When they reconstructed the Ft. Smith interchange, they made a mistake by having all the traffic coming southbound towards the Dallas junction have to get in the left lane to get onto I-35 southbound. If you are going eastbound on I-40 out of downtown on a Friday at rush hour, the traffic on westbound I-40 is jammed up between the FS junction and the DJ trying to go southbound on I-35. It's ridiculous to have that bottleneck. I hope when they rebuild the interchange at the DJ, they take that into consideration. One of these days, the construction will be on par with population growth in this city. I hope it happens sooner rather than later or we will have gridlock around here like we've never seen in OKC before.