Hell, that's better than a "big dig", and the displacement of 1 million Texans so Perry can get his kickbacks.
Thank you, thank you! Please keep in mind that the Mother Road ran primarily east - west, except for the Chicago-St Louee-Tulsa-OKC leg, where it had to go south to make the righthand turn to Texas!
None of this extra-curricular, extra-vehicular, nation-to-nation, north-south stuff, unh - uh.
So, just remember ... "If you ever plan to motor west ... travel my way ... take the highway that's the best ... get your kicks on Historic Route 66!"
From great lakes to shining sea!