[Desdemona]

I think 40 disappears in Illinois and becomes I-64 heading to Kentucky or Tennesee. Out here in St. Louis county though the road is highway 40 or I-40.

US highway 40 and Interstate 64 are the same road through St. Louis. It was Highway 40 LONG before it was I-64, too. Interstate 40 doesn't come near here.

[Poohbah]

Thank you...

My analogy stands--it's kinda like trying to arrange a rendevous between two cars on different east-west interstates when neither has the fuel to take a north-south route...

[Dave S]

US highway 40 and Interstate 64 are the same road through St. Louis. It was Highway 40 LONG before it was I-64, too. Interstate 40 doesn't come near here

Oopps! It's clear I shouldnt be making any course corrections either here on earth or up in space. I'm map challenged. Thanks.