A state qualifies if you have traveled on at least one Interstate, Auxiliary Interstate, US, or Auxiliary US highway in the state but no signed state highways. Remember that some states mutliplex state highways with Interstate and US highways. (If I've missed a multiplex with the routes I've listed, please let me know.)
My list:
Arkansas - Driven on I-30, I-40 and I-55 but no state highways
Delaware - Driven on I-295 but no state highways
Idaho - Driven on US 39 but no state highways
Montana - Driven on I-90, I-94, US 89 and US 212 but no state highways
Nebraska - Driven on I-76 and I-80 but no state highways
New York - Driven on I-95 and US 1/9 but no state highways
Oklahoma - Driven on I-35, I-40 and I-44 but no state highways
None for me. I've been on at least one state route in MA, NH, ME (although I don't remember it), VT, CT, NY, NJ, PA, VA, GA, FL, AZ, and CA. No Interstates or US routes in NM or IL. DC would qualify, except it isn't a state.
None for me, I've always been more of a back roads person...48 States.
Idaho–Have not driven at all, only ridden in cabs or a friend's rental vehicle, but anyway, I have 1.02 miles of Interstate, 6.21 miles of US highways, and various local roads in the Boise area that do not seem to be signed as state highways (at least per Travel Mapping).
Wyoming–Drove from Denver to Laramie for a football trip in 2007 via US-287 in both directions. I have 28.9 miles of US highways, 3.36 miles of Business Interstate, and various local streets in Laramie that do not seem to be signed as state highways (at least per Travel Mapping).
Not sure about Mississippi.
Bending a bit the thread title to any subdivision where I have been on a nationally-numbered road but not a regional one, for me this is true for the French region of Provence-Alps-Azure Coast, and the Italian regions of Liguria, Emilia Romagna and Lombardy. The former French region of Languedoc-Roussillon qualified as well prior to being merged with Midi-Pyrenees to form Occitania (I have been to some departamental roads in the part formerly known as Midi-Pyrenees). No communities of Spain currently qualify. Bonus points for the Veneto region of Italy, the only part of the world where I actually have been on a State Highway :sombrero:.
None for me. For all the states I've been to, I've been on at least one state route, even counting DC with 295.
I've been very close to not having been on a state route in some states, though. In Ohio and West Virginia, I've only been on brief sections of SR 236 and WV 10, respectively, adjacent to Interstates. I thought at first that Indiana would qualify with I-265 having replaced IN 265 at the time that I drove it (albeit not yet on signage), but then I remembered the brief concurrency with IN 62.
Of the 35+DC states I’ve been to:
DC - haven’t been on DC 295
Indiana - quick loop from Louisville, up 65 and back down 31
Iowa - briefly dropped into the state on US 18
Michigan - airport layover
Minnesota - airport layover
New Hampshire - went through on I-95 and I don’t think we exited anywhere
New Jersey - boat only
New York - no road mileage, though I’ve crossed 9W on foot
It’s worth noting that this is impossible in a state like Georgia, where every interstate or US route also has an underlying state route designation. Interstates have unsigned SR 4xx numbers, but the state routes concurrent with US Highways are almost always signed, and in many cases are actually the better-known name for the roadway - for example, US 23 north of Gainesville is primarily signed as SR 365, and US 19 north of Atlanta is always referred to as 400.
I believe I have never been on a state highway in Maryland. The entirety of my visit to Maryland was going from Alexandria, VA to Baltimore to see the Orioles and that was basically all Interstate travel. This was in 2001. I don't think I was on a signed state highway in Kentucky in 2003, but I was on the Pennyrile Parkway. I can't tell you about my 1978 trip through North Dakota, Montana and Wyoming. All other states have at least one state highway travel I have been on.
Hmm let's see... in order by miles traveled:
MA - I, US, SR
NY - I, US, SR
ME - I, US, SR
NH - I, US, SR
VA - I, US, SR
VT - I, US, SR
PA - I, US, SR
CT - I, US, SR
OH - I, US, SR
NC - I, US, SR
MD - I, US, SR
IL - I, US, SR
OK - I, US, SR
IN - I, US, SR
NJ - I, US, SR
RI - I, US, SR
MI - I, US, SR
CO - I, US, SR
TN - I, US, SR*
MO - I, US, SR
KS - I, US, SR*
CA - I, US, SR
NE - I, US*, SR*
NM - I, US, SR
SC - I, US, SR
WI - I, US, SR
WV - I, US, SR
IA - I, US*, SR*
AR - I, US*, SR
DE - I, US, SR
AL - I, US*, SR*
KY - I, US*
TX - I, US*, SR*
MS - I, US*, SR*
GA - I, US, SR*
FL - I, US, SR
LA - I, US*
DC - I, US, SR
* only because of an interstate multiplex
Looks like my winners are KY and LA! Frankly I'm shocked given the size of these states' state highway networks that I haven't at least been on one concurrent with an interstate. In TN, KS, NE, IA, AL, TX, MS, and GA I have only been on state routes concurrent with interstates or US routes.
My only possibilities would be Colorado, Utah, Idaho, Wyoming, and South Dakota. And that's only if there were no state concurrencies on any of the US or Interstate routes I was on in those states.
All of New England, NY, NJ, PA, DE, MD, DC, VA, WV, FL, HI are out. MO is out because I never left the airport.
NC: It was 1982 and not sure if the motel I stayed at was on a US or state route. Otherwise, never left I-95 or US 15/501
GA: Unless we count hidden state routes (I-95), I never left I-95 or Hartsfield-Jackson
SC: I-95 and US 15/501 (to go to Pedro's), but no state routes
MS: Unless you count a tiny segment of MS 15 within the I-10/I-110 interchange, none. Only I-10, I-110, and US 90.
LA: Was on I-10 and a piece of US 61, but no state.
IN: Was on I-65/I-70, but no state.
West Virgina. Just drove through on I-81
Mine are all in the northeast: Delaware, New Jersey*, New York, Rhode Island (I-95 for all of those), and Vermont (I-89 and US 2).
(* NJTP notwithstanding; no signed SR number)
I believe the exact opposite of this may be Ohio, where I think I've been on a state route (either OH 32 or OH 618) and have definitely not been on any other numbered route.
I have driven on interstates in 49 states. The only state I can think of where I haven't been on a state highway may be Nebraska, unless there's a concurrency on I-80 I am not remembering.
Only have been on a state highway in Oklahoma due to concurrencies on I-40.
All other states I've been off the beaten path in.
DC: been on I-66 and I-395, but not DC 295.
I have been to 33 states (counting DC as a "state"). States that I have been on an Interstate/US highway but not a state highway:
Arizona - only US 93
Louisiana - only I-10 and US 190
Mississippi - only Interstates 10, 20, 55, 110, 220, US 49, 51, 90
Rhode Island - only I-95, I-295, US 6
Four.
Some close calls, like Massachusetts with just MA 2, on its concurrency with I-91, being the only one.
Also went through Rhode Island on family vacation at age 7 - possible but not that likely that I may have hit some then.
Also three states with no Interstate or US highways either, but the OP explicitly excludes those.
Out of 39 States + DC
Colorado -- US 160 and US 491 only
Nebraska -- looks like I used 28H Link in my brief journey through Omaha. I don't fully understand the Nebraska hierarchy, but I assume 28H Link is a state highway?
Quote from: sbeaver44 on April 11, 2020, 10:32:35 PM
Nebraska -- looks like I used 28H Link in my brief journey through Omaha. I don't fully understand the Nebraska hierarchy, but I assume 28H Link is a state highway?
All the link and spur highways you see in Nebraska are state highways. I still think they should just give them regular numbers.
I've traveled state highways in all 50 plus DC, but it looks like my only state highway mileage in Idaho and Montana was concurrent with an Interstate.
DC - was on US-29 only. (the 48 states have miles on all levels)
Quote from: Rothman on April 11, 2020, 01:59:17 AM
I have driven on interstates in 49 states. The only state I can think of where I haven't been on a state highway may be Nebraska, unless there's a concurrency on I-80 I am not remembering.
There is. NE 10 near Kearney.
Quote from: deathtopumpkins on April 13, 2020, 09:32:11 AM
Quote from: Rothman on April 11, 2020, 01:59:17 AM
I have driven on interstates in 49 states. The only state I can think of where I haven't been on a state highway may be Nebraska, unless there's a concurrency on I-80 I am not remembering.
There is. NE 10 near Kearney.
Well, no state qualifies for me, then.
We can rule out MA, MN, and NY, as I spent significant time in all 3 states during my life.
We can also rule out WI (29, 23, 58, 35), IA (100, 930, 27, 58), RI (10, 24, 101, 114, 138, 195 [when it existed]), and CT (72, 372, 9, 85, 2, 11, 101)
Let me think of my longest road trips...
IL: nope... (72, 58, 53, 142, 242)
IN: nope... IN-49 has a short multiplex with I-70 that I've drove on.
OH: nope... OH-2 has its short multiplex with I-90
PA: does pre-I-86 PA-17 count?
NJ: nope... (35, 18, 444, 700, 17)
DE: I think I found one! Only ever drove on I-95 and I-295 in DE.
MD: nope... (295)
DC: nope... (295)
VA: nope... (233)
MO: nope... (27)
KY: Aha! Only been on I-24 and its multiplex with I-69
TN: nope... TN-2 has a short multiplex with I-24
GA: nope... I-75 is also GA-401
FL: nope... (31)
And one more state...
CA: nope... (1, 55, 237)
So...just Delaware and Kentucky.
Quote from: DJ Particle on April 14, 2020, 02:21:07 AM
IN: nope... IN-49 has a short multiplex with I-70 that I've drove on.
IN 49 does not go anywhere near I-70.
VA, NC, SC, GA, AL
My trip from Parkersburg, WV to Alabama.
It's physically impossible to go through Georgia on an Interstate or US Route without touching a state route. Same for US Routes in Alabama.
Quote from: CNGL-Leudimin on April 14, 2020, 03:28:51 PM
It's physically impossible to go through Georgia on an Interstate or US Route without touching a state route. Same for US Routes in Alabama.
To be fair the OP did refer to
signed state routes. Most of these concurrencies (at least the ones I'm familiar with) do not sign the state number.
Quote from: dlsterner on April 14, 2020, 04:53:23 PM
Quote from: CNGL-Leudimin on April 14, 2020, 03:28:51 PM
It's physically impossible to go through Georgia on an Interstate or US Route without touching a state route. Same for US Routes in Alabama.
To be fair the OP did refer to signed state routes. Most of these concurrencies (at least the ones I'm familiar with) do not sign the state number.
The Interstates don't, but the US routes virtually always do in Georgia (though not Alabama).
Quote from: cabiness42 on April 14, 2020, 07:44:21 AM
Quote from: DJ Particle on April 14, 2020, 02:21:07 AM
IN: nope... IN-49 has a short multiplex with I-70 that I've drove on.
IN 49 does not go anywhere near I-70.
Oh crap! it was OH-49! O.o During my Google Maps scan, I missed the state line *heh*
Quote from: CNGL-Leudimin on April 14, 2020, 03:28:51 PM
It's physically impossible to go through Georgia on an Interstate or US Route without touching a state route. Same for US Routes in Alabama.
As with Florida.
States I have been to and the road status including if I have been to the state only by way of airport:
ALABAMA: Interstate, US, State
ALASKA: Airport only
ARIZONA: Interstate, US, State
ARKANSAS: Interstate, US, State
CALIFORNIA: Airport only
COLORADO: Interstate, US, State
CONNECTICUT: Interstate, US, State
DELAWARE: Interstate
FLORIDA: Interstate, US, State
GEORGIA: Interstate, US, State
ILLINOIS: Interstate, US, State
INDIANA: Interstate, US, State
IOWA: Interstate, US, State
KANSAS: Interstate, US, State
KENTUCKY: Interstate, US, State
MARYLAND: Interstate, US
MASSACHUSETTS: Interstate, US, State
MICHIGAN: Interstate, US, State
MINNESOTA: Interstate, US, State
MISSISSIPPI: Interstate, US, State
MISSOURI: Interstate, US, State
MONTANA: Interstate, US, State
NEBRASKA: Interstate, US, State
NEVADA: Interstate, US, State
NEW JERSEY: Interstate, US, State
NEW MEXICO: State
NEW YORK: Interstate, US, State
NORTH CAROLINA: Interstate, US
NORTH DAKOTA: Interstate, US, State
OHIO: Interstate, US, State
OKLAHOMA: Interstate, US, State
PENNSYLVANIA: Interstate, US, State
RHODE ISLAND: Interstate, US, State
SOUTH CAROLINA: Interstate, US
SOUTH DAKOTA: Interstate, US, State
TENNESSEE: Interstate, US, State
TEXAS: Interstate, US, State
UTAH: Interstate, US, State
VIRGINIA: Interstate, US, State
WEST VIRGINIA: US, State
WISCONSIN: Interstate, US, State
WYOMING: Interstate, US, State
I can only think of two right now -- Kansas and Mississippi. Probably not coincidentally, MS is one of the states where I have yet to "overnight" at a motel/hotel or a home, whereas KS stays were almost invariably a Red Roof in Overland Park at the junction of I-435 and US 169 (and once at a LaQuinta on US 54 in Wichita).
of the states I have visited, I don't recall if I've ever gotten off the highway and not hit a state route, except one: north carolina. and the only reason I can confidently say I never drove on a state route is because I never got off the interstate in north carolina, I 40 to I 26 and out.
Excluding multiplexes because I don't pay attention to US Routes and state highways, there's too much states to list.
Quote from: NWI_Irish96 on April 09, 2020, 03:15:57 PM
A state qualifies if you have traveled on at least one Interstate, Auxiliary Interstate, US, or Auxiliary US highway in the state but no signed state highways. Remember that some states mutliplex state highways with Interstate and US highways. (If I've missed a multiplex with the routes I've listed, please let me know.)
My list:
Arkansas - Driven on I-30, I-40 and I-55 but no state highways
Delaware - Driven on I-295 but no state highways
Idaho - Driven on US 39 but no state highways
Montana - Driven on I-90, I-94, US 89 and US 212 but no state highways
Nebraska - Driven on I-76 and I-80 but no state highways
New York - Driven on I-95 US 1/9 but no state highways
Oklahoma - Driven on I-35, I-40 and I-44 but no state highways
Updates: First of all, my route in Idaho was US 89, not US 39.
I also missed Louisiana, where I've driven on I-10, I-310, US 51 and US 90 but no state highways so that gets added to the list.
Since this original post, I have driven on state highways in New York so that gets removed from the list.
Since this original post, I have driven in Connecticut on I-95 and in Rhode Island on I-95 and I-195 but no state highways so they get added to the list.
Only Rhode Island (and DC).
Quote from: JayhawkCO on August 18, 2022, 09:56:06 AM
Only Rhode Island (and DC).
Yeah there's only one DC highway so you've either been on it or you haven't.
I have been on an state highway for every one of the 47 states + DC I've visited.
I know I was on a Nevada state highway (604) before it was decommissioned, so currently...46.
Quote from: hbelkins on April 10, 2020, 11:08:59 AM
My only possibilities would be Colorado, Utah, Idaho, Wyoming, and South Dakota. And that's only if there were no state concurrencies on any of the US or Interstate routes I was on in those states.
Had to look to see if I had posted in this thread. I left out Nebraska, which I've only been in twice. Once by car, entering on US 77 and exiting on I-129, and once via Amtrak.
Colorado, Utah, and Idaho can be scratched off this list. I was on state routes in all those states on my trip last year.
Nebraska for sure. I-129 and US 77.
Iowa I was on I-29 and I-129.
Up until 2015, Oklahoma qualified. US 54 I only used except as a small child way before 2000-01 have no memory of what I was on then.
Wyoming I-25, US 18, US 85, US 87, and US 30.
Quote from: Rothman on April 13, 2020, 11:46:33 PM
Quote from: deathtopumpkins on April 13, 2020, 09:32:11 AM
Quote from: Rothman on April 11, 2020, 01:59:17 AM
I have driven on interstates in 49 states. The only state I can think of where I haven't been on a state highway may be Nebraska, unless there's a concurrency on I-80 I am not remembering.
There is. NE 10 near Kearney.
Well, no state qualifies for me, then.
And definitely not now. Took an extensive drive through NE earlier this year.
Delaware, Pennsylvania, and Rhode Island
For Iowa, I have less than 1 TM segment on a state route.
Just North Carolina for me.
Maryland
From a quick TM check, it appears that Indiana is the only state I've visited with no travels on the state route system.
No state highways at all:
Idaho (I-90)
Rhode Island (I-95)
Virginia (I-66 and I-495)
No independent segments used:
Alabama
Connecticut
Georgia
Kansas
Kentucky
Oregon
Vermont
I think the only state that would qualify for me is Idaho, unless I-90 or US-12 through the state duplexes with a state highway.
Without re-tracing literally every interstate road trip I've ever taken, Connecticut.
Possibly but unlikely: Pennsylvania, West Virginia.
Looks like Indiana, Iowa, and New Hampshire all hit this for me.
GA, SC, and NC: I was on I-95 the entire time in GA, and only left I-95 in SC to go to Pedro's. Not sure which route the motel I stayed at in NC was on, so I'm hazy about it. Also never touched a state route in MS (I-10, I-110, and US 90), although I was in the interchange where one began (MS 15 in the I-10/110 interchange).
^ All of I-95 in Georgia is concurrent with the unsigned GA 405.
By the way, this unsigned state route concurrency business applies to every interstate in Georgia and Florida, and to US highways in some more southeastern states. The state route concurrencies on US highways are even signed in GA.
None. I've made it a point to drive at least a few blocks of one in each state in recent trips to check out signage. It ranges from concurrent with aux/US/Interstate (WY) to full fledge finish of a state route system (WI)
As far as multiplexing with business (Interstate/US) routes - the state route's the main route, the aux route is coincidental (My opinion, YMMV).
Quote from: US 89 on August 18, 2022, 04:23:17 PM
^ All of I-95 in Georgia is concurrent with the unsigned GA 405.
By the way, this unsigned state route concurrency business applies to every interstate in Georgia and Florida, and to US highways in some more southeastern states. The state route concurrencies on US highways are even signed in GA.
I don't believe in hidden state routes (though YMMV) - I have to see a sign.
Vermont, New Jersey, and Maryland.
GA: I-95 (GA 405 does not count)
ID: I-15, US 20
IL: I-55, I-70, US 67
IN: I-70, US 40
NE: I-129, US 20, US 75, US 77
RI: I-95, I-295
WY: I-90, US 20, US 89