zaphod wrote:
OK, This sounded a little strange to me, but during lunch today with some
co-workers, someone asked if I knew of some rules regarding interstate
construction. They had heard a bit of trivia that claimed that an
interstate highway must have sections that are straight, level, and long
enough for a plane to land(at least 1 mile they thought.) I had never
heard of such and was wondering if anyone here knows what they were talking
about?

It's an urban legend, probably started because Eisenhower liked the idea. It can
be easily disproved simply by looking at a large scale map of I-40 or I-81 in
mountainous terrain. Check Snopes at
http://www.snopes.com/autos/law/airstrip.asp

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.