Only in this state....

[Scott5114]

Oklahoma has 14 one-digit routes.

Wait, what?

Hexadecimal, of course.

Nope.

1, 2, 2, 3, 3(E), 3(W), 4, 4, 5, 5, 6, 7, 8, 9 = 14 one digit routes.

[hbelkins]

Alanland has 14 one-digit routes.

Wait, what?

FIFY.

[Kacie Jane]

I stand corrected.

But for Georgia, the only hidden routes are the state routes concurrent with the interstate highways (SR 401-425).  All state routes concurrent with US routes are openly signed, including SR 1-9.

That's kind of what I thought, but I wasn't sure.  Thanks.

[national highway 1]

Alanland has 14 one-digit routes.

Wait, what?

FIFY.

Of course! How did we not know that?

[Takumi]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

[Kacie Jane]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

I'm pretty sure Kentucky does not get that high.  Louisiana doesn't either, but it does have 5-digit routes if you count ones like "1284-1" (which I don't think you should).  Those are the only two I can think of that potentially would.

[hbelkins]

1, 2, 2, 3, 3(E), 3(W), 4, 4, 5, 5, 6, 7, 8, 9 = 14 one digit routes.

In that case, Kentucky has 1, 2, 3, 4, 5, 6, 7, 8, 8, 8 and 9. That makes 12.

[Kacie Jane]

11*

[NWI_Irish96]

To nip the discussion in the bud...

States that have all 9: AK, DE, IL, IN, KY, LA, MS, OK
States that have all 9 if you count I & US routes: CA, CT, ID, IA, ME, MA, MN, NY, SC, TN, VA
States that have all 9 if you count hidden routes: AL, GA (or should this be in the first list?), OR

States with no single-digit state highways: AZ, HI, NV, WI, WY

Texas is an interesting case.  It has Farm to Market 1-9; it also has 1-9 if you combine all the other types of state highways together.  But for just their base highways, they're missing a handful of single digits.

Florida is only missing SR 1.  It has US 1, but since they normally don't give a rat's ass about duplication, I left them off the second list.  But SR A1A used to be SR 1, and still has a 1 in it, so...

(I almost left New York off the second list for the same reason, but since they usually care about duplication -- but only with US routes -- I still included them.)

There is a US 6 in Indiana but no state highway 6.

[Kacie Jane]

There is a US 6 in Indiana but no state highway 6.

Apologies.  I was looking at it after I posted, and had a feeling I had either Illinois or Indiana in the wrong list.  Then I got lazy and didn't check/correct it.  Story of my life.

[kphoger]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

I'm pretty sure Kentucky does not get that high.  Louisiana doesn't either, but it does have 5-digit routes if you count ones like "1284-1" (which I don't think you should).  Those are the only two I can think of that potentially would.

I don't know why we should count VA 9000x but not LA xxxx-x.  If the -x is to be considered as not part of the main number, then I'd say at least the 9 in 9000x should be likewise considered.

[Alps]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

Quebec's internally numbered routes have five digits.

[cjk374]

To nip the discussion in the bud...

States that have all 9: AK, DE, IL, IN, KY, LA, MS, OK

Knock LA off of this list....we lost LA 7 back in the late 1990s-early 2000s to US 371.

[bassoon1986]

but we do have an ALT 2. Does that count for anything? And an unsigned Spur 3

[Eth]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

Quebec's internally numbered routes have five digits.

If we're going to go with internal designations, it could be argued that all of Georgia's state routes have six alphanumeric characters (SR 3 = 000300, SR 141 = 014100, SR 85 Alt = 0085AL, etc., etc.)

[Alps]

How many states have five-digit routes? Virginia has primary routes 90003, 90004, and 90005, as well as some 10xxx secondaries.

Quebec's internally numbered routes have five digits.

If we're going to go with internal designations, it could be argued that all of Georgia's state routes have six alphanumeric characters (SR 3 = 000300, SR 141 = 014100, SR 85 Alt = 0085AL, etc., etc.)

But that's a bookkeeping system, what with the leading zeroes. I could then argue that NJ has ten-digit routes, because all of the roads catalogued by the state (regardless of maintenance) have eight numeric digits and then up to two suffix letters. The roads in Quebec are province-numbered routes.

[sandwalk]

My memory was jogged when I went home for Christmas this year.  I've only ever noticed these signs in Cuyahoga County and Lorain County in Ohio:
https://maps.google.com/maps?q=13803+Lakewood+Heights+Boulevard,+Lakewood,+OH&hl=en&ll=41.470445,-81.78724&spn=0.001674,0.001725&sll=41.470431,-81.787739&layer=c&cbp=13,315.36,,1,1.8&cbll=41.470445,-81.787751&gl=us&hnear=13803+Lakewood+Heights+Blvd,+Lakewood,+Ohio+44107&t=h&z=19&panoid=yysc8WzDMv1GYxTdvK631A

Basically, the sign lists the road you are currently on and lets you know what road(s) you are approaching '500 feet ahead.'

[roadman65]

Ohio seems to have their own bridge design that is unique.  All with round piers and capped off at the last pier.  Also most piers are all painted white and the girders blue, at least when there in 03.

The same can be said about the NJ Turnpike having its own bridge design that I have not seen anywhere else.

At one time even NJ had its own design of bridges on freeways and newer local roads with the curved railing.    It changes later when some architects designing different freeways had their own ideas like I-195, NJ 33 (Freehold Bypass), and NJ 18 all have a design with one large rectangular pier instead of two or three round or square ones.  The Garden State Parkway even changed over the years as they were once standard, but then later done differently along with each individual project.

I think Georgia still has a design on all their 70's built freeways that are still unique.  The two square piers, with caps over the sides, green girders, and cement railings. 

[Scott5114]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

[NE2]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

Florida always does this on state roads. There are a few drops (and rises) of 15, but almost all go at increments of 5 or 10. For example, here's Williston: http://www.itoworld.com/map/124#fullscreen&lat=29.39&lon=-82.45&zoom=13

[jeffandnicole]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

Florida always does this on state roads. There are a few drops (and rises) of 15, but almost all go at increments of 5 or 10. For example, here's Williston: http://www.itoworld.com/map/124#fullscreen&lat=29.39&lon=-82.45&zoom=13

The biggest increase I'm aware of in NJ is coming out of the Aljo Curve - I-295 South at I-76/NJ 42. The speed limit in the curve (and the curve after) is 35 mph.  The next speed limit zone is 65 mph, a 30mph jump.

Going into the curves around this interchange, the drop is 20 mph - from 55 mph to 35 mph.  This includes 295 North, as there is a speed reduction from 65 mph to 55 mph about 3/4 mile before the interchange.  Southbound, the speed limit is 55 mph for about 8 miles prior to the interchange.

[BamaZeus]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

In Alabama, this is done by law, so as to prevent small town speed traps.  There is never an increase or decrease of more than 10, so that you don't enter a town and have the speed limit go from 55/65 to 25 in one shot, with a cop hiding behind the billboard.

[agentsteel53]

In Alabama, this is done by law, so as to prevent small town speed traps.  There is never an increase or decrease of more than 10, so that you don't enter a town and have the speed limit go from 55/65 to 25 in one shot, with a cop hiding behind the billboard.

that's something Nevada does.  towns like Fallon and Searchlight on US-95 have that quick drop, and the town is all too quick to enforce the reflex tax.

[vdeane]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

This is usually (but not always) done in NY as well.  Some of them result in quite comical over-use of road signs (NY 12 south approaching Alexandria Bay even has 12 signs in 1/4 mile because of this).

[myosh_tino]

Oklahoma seems to be unique among the states in gradually decreasing speed limits rather than a hard drop. If you are going from a 65 mph zone to a 45 mph zone, there is always a 55 zone in between.

IIRC, California has a law in place that limits the maximum speed limit drop to 10 MPH to minimize speed traps.  On rural roads entering a town you'll see the limits drop from 55 to 45 to 35 entering town and then rise from 35 to 45 to 55 leaving town.