Common highway numbers that aren't found in your state

[Konza]

Illinois doesn't have a state route 11; it was usurped by US 40, and hasn't been used since.

Other route numbers <100 not currently assigned to a state, US, or Interstate route in Illinois:  27, 42, 44, 46, 63, 65, 69, 77, 79, 85, 86, 87, 93, 95.

Gonna go ahead and correct this.  For a complete list of Illinois State, Interstate, and US highways (in that order), check this album of Illinois highway shields, because I've snagged a picture of every single one.  Numbers under 100 unused in Illinois:  11, 27, 28, 42, 44, 46, 63, 65, 66, 69, 77, 79, 85, 86, and 87.  The range of 30-90 was correct.

In response to a more recent diatribe, the following numbers are duplicated in Illinois:  6, 14, 24, 34, 40, 41, 50, 54, 57, 60 (barely), 62 (barely), 64, 70, 72, 90, 94, 155, 172, 180, 255 (kinda).

Thanks for the correction.  I'm old enough to remember seeing IL 42 signs on Sheridan Road, IL 63 signs on Midlothian Road from Lake Zurich to Mundelein, IL 65 in and between downtown Naperville and Aurora, and "Chicago" or "St. Louis" signs over the US 66 shield before I-55 was completed and US 66 decommissioned.

[formulanone]

So are Kentucky, Georgia, and Alabama the only states with only one missing number in the first 100 (with a caveat on Alabama's hidden numbers)?

Other numbers over 100 that seem to be common are:

101, with 32 states still using it; three more with US 101 signed.
102, in 31 states
103, in 36 states
110, in 38 states, including I-110 in 5 states
120, in 35 states

[bassoon1986]

So are Kentucky, Georgia, and Alabama the only states with only one missing number in the first 100 (with a caveat on Alabama's hidden numbers)?

Other numbers over 100 that seem to be common are:

101, with 32 states still using it; three more with US 101 signed.
102, in 31 states
103, in 36 states
110, in 38 states, including I-110 in 5 states
120, in 35 states

Louisiana is only missing 32 if you count 7 from previous routes.


iPhone

[Urban Prairie Schooner]

Louisiana does not have these numbered state highways:

7- was taken over by newly commissioned US 371 in the 90's

32- never had one in the old numbering system or the current one.


iPhone

32 existed as a spur to the State Capitol for a brief period in 1955. Pretty sure there was a 32 in the old system also, but I don't remember where.

Also 166 previous existed 1955-1960 in Bossier Parish, but has been unused since.

[bulldog1979]

Michigan is currently missing 4, 7, 9, 16, 56, 70, 74, 76, 87, 92, and 98. Each of these numbers has been in use at some point though. (The first number never used in Michigan would be 128.)

[mrose]

WI is obviously infamous for having no state routes lower than 11.

Then most 2-digit highways including state, US, and Interstate highways are used.  Currently missing are 62, 74, 84, 99

I do see that Wisconsin has US-2, US-8, and US-10.

Yes, Highway 2, Highway 8, and Highway 10. 

Would this actually be the reason? No duplicates?

Not that this means anything for 1, 3, 4, 5 etc...

[Brandon]

WI is obviously infamous for having no state routes lower than 11.

Then most 2-digit highways including state, US, and Interstate highways are used.  Currently missing are 62, 74, 84, 99

I do see that Wisconsin has US-2, US-8, and US-10.

Yes, Highway 2, Highway 8, and Highway 10. 

Would this actually be the reason? No duplicates?

Not that this means anything for 1, 3, 4, 5 etc...

Everything is Wisconsin is "HWY" or "Highway".  The locals and the DOT (WisDOT) do not make any distinction between types of routes when using the number.

[TheGrassGuy]

The lowest number in NJ that hasn't been used is 16.

[wxfree]

Texas doesn't have a State Highway 1.  The original version ran roughly along I-10 from El Paso to I-20, the roughly along I-20 to DFW (going through Mineral Wells), and then roughly along I-30 to Texarkana.  In 1939 it was reduced to a short section in Dallas.  In 1953 to designation was removed.  In the designation file, it says "NOTE:  THIS STATE HIGHWAY NUMBER MAY ONLY BE ASSIGNED BY THE EXECUTIVE DIRECTOR OR THE TRANSPORTATION COMMISSION."

At one time, the commission just ordered a designation, and the number was assigned administratively, generally with the lowest unused number.  These days, the commission minute orders define the number to be assigned, so it wouldn't be used without commission approval, anyway.  Apparently they're holding this number for some special purpose.  After holding it for nearly 70 years, the purpose for which it's used will have to be pretty special.  I'd like to see it replace FM 1933, which is a loop through Mentone.  It goes three blocks northwest from SH 302, one block northeast, and then three blocks back to SH 302.

[US 89]

Texas doesn't have a State Highway 1.  The original version ran roughly along I-10 from El Paso to I-20, the roughly along I-20 to DFW (going through Mineral Wells), and then roughly along I-30 to Texarkana.  In 1939 it was reduced to a short section in Dallas.  In 1953 to designation was removed.  In the designation file, it says "NOTE:  THIS STATE HIGHWAY NUMBER MAY ONLY BE ASSIGNED BY THE EXECUTIVE DIRECTOR OR THE TRANSPORTATION COMMISSION."

Maybe not a SH 1, but there are multiple state-level highways numbered 1 in Texas like Loop 1, FM 1, Ranch Road 1, and NASA Road 1...

[Big John]

WI is obviously infamous for having no state routes lower than 11.

Then most 2-digit highways including state, US, and Interstate highways are used.  Currently missing are 62, 74, 84, 99

I do see that Wisconsin has US-2, US-8, and US-10.

Yes, Highway 2, Highway 8, and Highway 10. 

Would this actually be the reason? No duplicates?

Not that this means anything for 1, 3, 4, 5 etc...

Everything is Wisconsin is "HWY" or "Highway".  The locals and the DOT (WisDOT) do not make any distinction between types of routes when using the number.

There were no duplicates until 1996.  39 (Interstate), WI 794 (extension of I-794) and I-41 were since added.

[wriddle082]

TN 42 once existed from Sparta to US 127 at the KY border, but has since been renumbered to TN 111.  Pretty sure that's the lowest missing number from TN's system.

HB, did you mention how WV does not have a primary highway 1?

Nope, I forgot about there being no WV 1. There are plenty of CR 1's, though.

Last time I was across TN 111, I noticed there are still a few mileage markers that have the "42" designation on them. They're on the four-lane segment south of Livingston.

On your old WV Highways late from years ago, that was where I learned that WV has never had a primary 1.

I find that odd that you would see mike markers with 42 on them on that particular stretch of 111.  Back in the mid-90's when I was going to Tennessee Tech, 111 and 42 were co-signed (sort of) from Algood through Livingston all the way to the end at US 127, and it was still only two lanes from the Putnam-Overton Co line to the Livingston city limits.  I figured they would have put up correct mile markers after they twinned it!

[Mapmikey]

TN 42 once existed from Sparta to US 127 at the KY border, but has since been renumbered to TN 111.  Pretty sure that's the lowest missing number from TN's system.

HB, did you mention how WV does not have a primary highway 1?

Nope, I forgot about there being no WV 1. There are plenty of CR 1's, though.

Last time I was across TN 111, I noticed there are still a few mileage markers that have the "42" designation on them. They're on the four-lane segment south of Livingston.

On your old WV Highways late from years ago, that was where I learned that WV has never had a primary 1.

I find that odd that you would see mike markers with 42 on them on that particular stretch of 111.  Back in the mid-90's when I was going to Tennessee Tech, 111 and 42 were co-signed (sort of) from Algood through Livingston all the way to the end at US 127, and it was still only two lanes from the Putnam-Overton Co line to the Livingston city limits.  I figured they would have put up correct mile markers after they twinned it!

West Virginia definitely had a route 1

See - http://www.vahighways.com/wvannex/route-log/wv001.htm

[Brandon]

WI is obviously infamous for having no state routes lower than 11.

Then most 2-digit highways including state, US, and Interstate highways are used.  Currently missing are 62, 74, 84, 99

I do see that Wisconsin has US-2, US-8, and US-10.

Yes, Highway 2, Highway 8, and Highway 10. 

Would this actually be the reason? No duplicates?

Not that this means anything for 1, 3, 4, 5 etc...

Everything is Wisconsin is "HWY" or "Highway".  The locals and the DOT (WisDOT) do not make any distinction between types of routes when using the number.

There were no duplicates until 1996.  39 (Interstate), WI 794 (extension of I-794) and I-41 were since added.

But, of those, only 39 sticks out like a sore thumb.  Highway 794 just becomes Highway 794 with signals (freeway to expressway), and Highway 41 follows Highway 41.

[CNGL-Leudimin]

Before the advent of freeways and apart from the six radial highways numbered with Roman numerals (which have been recently switched to Arabic ones) there was no highway in Spain numbered anything below 100. Even today there are unused 2 digit numbers in the entirety of Spain (mostly in the 80s and 90s), and others as low as 18 are only assigned to minor roads.

[Flint1979]

Now I'm thinking, are there any states that allow duplication of US and state routes?

NY has most of the low numbers in its state route system: NY 2, NY 3, NY 5, NY 7, NY 8, NY 10.
And we have US 1, US 4, US 6, and US 9, so that explains those omissions. This trend seems to continue, with US 11, NY 12 and 13, and so on.

In fact, it appears that 47 is the lowest number, and the only number below 50, not used at the state or US level. Higher than I thought! Can any other state go higher, possibly even triple digits, claiming ALL numbers 1-99?

Michigan must allow it. There's US-8 and M-8, US-10 and M-10, US-45 and M-45. There might be another one I always seem to miss one or two.

You forgot 24.
There used to be other duplicate M and US numbers: 25, 27, 33, 112, 131.

Lol I always seem to miss one or two of them. And the two 24's are in basically the same area and even intersected at one time with the southern terminus of M-24 and the northern terminus of US-24 in Pontiac.

[Flint1979]

I know Indiana doesn't allow it. The state highways follow the same system the US highway system does. Even highways run east and west and start with 2 in the northern part of the state and odd highways run north and south and start with 1 in the eastern part of the state.

In fact I believe one of the US highways I think it's US-40 falls in the same area that Indiana 40 would be in. It's in between Indiana 38 and 42. US-6 I believe falls in that as well.

Yes, Indiana does not allow US/State route duplication.  IN 35 was renumbered to IN 135 when US 35 was introduced into Indiana.  IN 6 coincidentally was the route that US 6 took through the state.

Duplication of Interstate/State routes is allowed.  64, 69, and 70 all exist on both state routes and interstates.

To me 64 being duplicated is strange since IN-64 runs parrellel not too far north of I-64. And has it's eastern terminus at I-64.

[mapman1071]

Nevada definitely is right up there wit not having a lot of low highway numbers with; US 6, I-15, NV 28, US 50, I-80, NV 88, US 93, and US 95 below 100.

It takes the prize for fewest currently-used numbers under 100, with only 8 compared to Alaska's 12 (though unlike Nevada, Alaska has nothing 100 or higher). But what about former Nevada routes, to match froggie's Vermont list which included former routes? (AFAIK, there are no former Alaska routes, at least post-statehood.) I know about NV 8A (saw the sign, just past the east end of CA 299), but are there other low-numbered former Nevada routes?

All those weird ones like 8A which still have stray signs are either renumbered or decommissioned.  8A for example was defined by the state legislature but was always locally maintained.  I've seen map references for NV 3C while scouting Bodie Road East to Aurora but never seen a field sign. Off the top of my head those are the only two that I know that there is a least a modern reference for, it is almost certain that there are more. 

Edit:  I seem to recall NV 34 had a couple signs too but it's been a really long time since I've driven 8A through Vya so I could be remembering that wrong. 

Forgot I-11

[PHLBOS]

There is no longer a 15 in MA.

There is; it's an extension of RI 15.

While true; some sources still view/list the lower portion of Haynes St., south of River Rd., in Sturbridge as Route 15 (pre-Wilbur Cross Highway).  If one obtains a printed receipt from the Sturbridge Pilot station situated in between the two I-84 overpasses; such lists the street address as 400 Route 15 rather than 400 Haynes St.  Mind you, I'm not saying that it's still officially such; but some still haven't given up the proverbial Route 15-ghost in that area.

[epzik8]

To avoid duplication with U.S. routes, the following state highways are non-existent in Maryland: 1, 11, 13, 15, 29, 40 and 50. There is also no MD-9 for no reason in particular, although a state road map from about 1979 showed a MD-9 in place of MD-140 from Reisterstown to the Pennsylvania line near Emmitsburg. This was before I-795 was built and would have resulted in a three-way state route terminus at Reisterstown, as MD-140 would have ended there and MD-30 has its southern terminus there.

[US71]

68 was retired in Arkansas (replaced by US 412), as were 2 and 3 (replaced by US 82, US 79). AR 6 was replaced by US 270.

47 was replaced by US 62 and AR 37

40 is relegated to I-40 as is 30 to I-30., and 55 to I-55.  4 was truncated (now mostly US 278) as was AR 24 (now partly US 371)

471 was created then retired in the 1980's.

1 is a shadow of it's former self, partially replaced by US 49

[Mapmikey]

To avoid duplication with U.S. routes, the following state highways are non-existent in Maryland: 1, 11, 13, 15, 29, 40 and 50. There is also no MD-9 for no reason in particular, although a state road map from about 1979 showed a MD-9 in place of MD-140 from Reisterstown to the Pennsylvania line near Emmitsburg. This was before I-795 was built and would have resulted in a three-way state route terminus at Reisterstown, as MD-140 would have ended there and MD-30 has its southern terminus there.

There is no MD 9 because they changed their mind about that renumbering.  But they did go through with renumbering MD 9 to MD 956 as part of the US 140 decommissioning.  See reply #43 in this thread...

[dvferyance]

In Indiana, 21 and 34 don't exist.  They used to, before being replaced by US 35 and 136, respectively, and they were never recycled. Only numbers < 72 in Indiana that aren't on an US or state highway.

Indiana does have a 75 but I believe that is the highest 2 digit. It used to have one as high as 79 but none of the numbers in the 80's or 90's were ever used.

[apeman33]

K-6 was replaced by other routes, mostly U.S. 59. K-12 was decommissioned when it became annexed entirely into the city limits of the towns along its route, which is not allowed under KDOT policy.

K-17 was decommissioned in 2013 when K-14 was rerouted. Part of the old routing of K-14 was designated K-11, which had not existed since a previous version was decommissioned in the late 1950s (the original K-11 is now K-99).

[CNGL-Leudimin]

K-12 was decommissioned when it became annexed entirely into the city limits of the towns along its route, which is not allowed under KDOT policy.

That policy wouldn't work in some of the New England states, as it would mean no numbered routes could exist at all.