2007-08-04 20:00:45 · 4 answers · asked by DJ 1 in Travel ➔ United States ➔ Other - United States
I-90 from Seattle, WA to Boston, MA. The longest Interstate highway at 3,085 miles (4,936 km). There is a portion in Montana where the speed limit is "Reasonable and Prudent".
2007-08-04 20:04:40 · answer #1 · answered by Sal*UK 7 · 0⤊ 0⤋
I agree with the I 90 part from sal*uk, but I have driven all of I90 in MT. Unless they have changed in the last couple of yrs, I hate to say that MT has a speed limit of 70 or 75mph for 4 wheelers & 65 mph for large trucks on all stretches of interstate. They has to repeal the reasonable speed after the feds got on their case.
2007-08-05 04:09:57 · answer #2 · answered by Eskimo Mom 4 · 0⤊ 0⤋
I-90 is the longest, then I-80.
2007-08-05 03:05:53 · answer #3 · answered by Sly 4 · 0⤊ 0⤋
I'm just popping in with a quick guess
I 75 or A1A....will check back for answers!
2007-08-05 03:03:38 · answer #4 · answered by Grace 5 · 0⤊ 0⤋