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SteveInBaltimore
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3 digits (first digit odd) are spurs from interstate to something else...

3 digits (first digit even) leave the interstate system and reconnect to it, so they are basically bypasses (which in some cases they "bypass" on both sides which makes them beltways) Spurs (first digit odd)... leaves interstate and ends somewhere 581 -- connects I-81 to Roanoke 195 -- connects I-95 to BWI 395 -- connects I-95 to downtown DC 795 -- connects I-695 (Baltimore beltway) to NW suburbs Bypasses/beltways/interstate connectors (first digit even) -- leaves AND reconnects with interstate system: 270 -- connects I-70 in Frederick to I-495 495 -- beltway around DC 695 -- beltway around Baltimore 295 -- bypasses Richmond on the eastern sides
Posted: 06/16/2026 at 12:54 PM ET
(In response to this post by UTPr0sim)

Thread Replies (42)

Full Thread →
Late Morning Trivia! [on the road again style}
UTPr0sim • 06/16/26 07:49 AM ET
I-97 in MD**
ShortFatHokie • 06/16/26 06:48 PM ET
and late too! LOL**
UTPr0sim • 06/16/26 07:16 PM ET
I don't read the replies, I just answer your trivia questions...**
ShortFatHokie • 06/17/26 07:20 PM ET
Answers inside - The shortest is in Maryland and I'll bet some lounger has
UTPr0sim • 06/16/26 12:08 PM ET
I think I-87 in North Carolina is shorter but it may not be fully complete
vt90 • 06/16/26 12:16 PM ET
Hmm I87 only shows up in New York - 333 miles.**
UTPr0sim • 06/16/26 12:58 PM ET
I-30 in Texas for shortest?**
VT_Skier • 06/16/26 11:32 AM ET
i30 is 366 miles long so no.**
UTPr0sim • 06/16/26 12:07 PM ET
Dang. I know a 3 digit one in Queens. Real short**
ColoVT82 • 06/16/26 10:11 AM ET
Yeah the 3 digits are spurs of the 2 digit so naturally short.**
UTPr0sim • 06/16/26 10:18 AM ET
3 digits (first digit odd) are spurs from interstate to something else... ◄
SteveInBaltimore • 06/16/26 12:54 PM ET
How about H2 in Hawaii for shortest?**
Spud • 06/16/26 09:54 AM ET
I195 up here in Maryland (basically takes you to BWI from I95)?
`lag • 06/16/26 09:37 AM ET
It’s up in your state. **
Stork • 06/16/26 10:56 AM ET
The shortest is a 2 number Interstate. Only 17 miles long!**
UTPr0sim • 06/16/26 09:40 AM ET
68 is the shortest?**
HokieJamie • 06/16/26 09:20 AM ET
i68 is 113 miles long so not the shortest. geography close to shortest.**
UTPr0sim • 06/16/26 09:21 AM ET
9:15Hint: The shortest Ixx is in one county in one state and not in VA**
UTPr0sim • 06/16/26 09:19 AM ET
I-675 in Atlanta? Or are you limiting this to two-digit numbers?**
Freddyburg Hokie • 06/16/26 02:37 PM ET
um:"2. Name the shortest 2 digit US Interstate Highway "**
UTPr0sim • 06/16/26 02:42 PM ET
I-69**
Brown Water • 06/16/26 08:47 AM ET
i69 is 910 miles long when including all segments. SO there....LOL**
UTPr0sim • 06/16/26 08:50 AM ET
Speaking of Interstate trivia...
EDGEMAN • 06/16/26 08:36 AM ET
And single digit Interstates?**
UTPr0sim • 06/16/26 08:39 AM ET
Odd or even?**
EDGEMAN • 06/16/26 09:15 AM ET
Its the same, but single digits are local connectors rather than INTERSTATE**
UTPr0sim • 06/16/26 09:19 AM ET
Except for I-5**
MAHokie69 • 06/16/26 09:21 AM ET
Always an exception.**
UTPr0sim • 06/16/26 10:18 AM ET
It's California, so...lol**
EDGEMAN • 06/16/26 11:09 AM ET
And OR and WA. **
HwoodHokie • 06/16/26 11:36 AM ET
1. I-80, 2. I-42.**
GSOHokie01 • 06/16/26 08:20 AM ET
No i80 is second longest at 2900 miles. I 42 is short at 31 miles but not
UTPr0sim • 06/16/26 08:39 AM ET
1. I-66 Manassas to Centreville. 2. I-66 to anywhere else.**
VT BronzeBacker • 06/16/26 08:15 AM ET
Not the shortest**
UTPr0sim • 06/16/26 08:38 AM ET
1 - I-90**
VT_Skier • 06/16/26 08:14 AM ET
Ding Ding Ding! i90 is 3,020 miles long Seatle to Boston
UTPr0sim • 06/16/26 08:37 AM ET
i66**
mvick • 06/16/26 08:09 AM ET
LOL**
MAHokie69 • 06/16/26 09:22 AM ET
NO!**
UTPr0sim • 06/16/26 08:36 AM ET
1. I 40?**
santafe • 06/16/26 07:55 AM ET
no its third longest at 2,556 miles**
UTPr0sim • 06/16/26 08:36 AM ET
I figured it might be near the top. I drove I40 from
PhotoHokieNC • 06/16/26 08:46 AM ET