Non-isolated state routes that do not intersect any other state maintained route

[hbelkins]

By non-isolated, I mean roads not on an island or other inaccessible locations. I mean roads like in the following example.

https://goo.gl/maps/nphb3

http://transportation.ky.gov/Planning/SPRS%20Maps/Madison.pdf

KY 938 in Madison County does not intersect any other state routes. It begins at a county route and dead-ends. I have no clue why it's on the state system. Best I can remember, it's not signed.

Any other examples? (State routes that intersect only US routes do not count, because US routes are technically state routes.)

[corco]

Arizona 210 and Secondary 454 in Montana come to mind immediately

[DandyDan]

Iowa 165, the part of Abbott Drive in Omaha which goes through Carter Lake, Iowa.  Iowa has several historical highways that were isolated from the rest of the system.

[Zeffy]

I think this should count - VA 700:
https://www.google.com/maps/@37.2921095,-78.8036331,17z

[national highway 1]

US 160 cuts across the NW corner of New Mexico, and is the only road that connects to NM 597, the road to the Four Corners monument.

[NE2]

I think this should count - VA 700:
https://www.google.com/maps/@37.2921095,-78.8036331,17z

Why should it count? Trent Hatchery Road is SR 700 to the east and SR 635 to the northwest.

[Zeffy]

Why should it count? Trent Hatchery Road is SR 700 to the east and SR 635 to the northwest.

It is? Google isn't showing shields at all except for that segment of it. Looking at it on OSM though, it appears that I was wrong, so ignore my previous post.

[NE2]

It is? Google isn't showing shields at all except for that segment of it.

Are you so new here that you trust the Goog?

[Zeffy]

Are you so new here that you trust the Goog?

I don't entirely trust it, but I was honestly being too lazy to go and verify it. Evidently I should not from now on.

[Mapmikey]

Why should it count? Trent Hatchery Road is SR 700 to the east and SR 635 to the northwest.

It is? Google isn't showing shields at all except for that segment of it. Looking at it on OSM though, it appears that I was wrong, so ignore my previous post.

If you're going to look for Virginia secondary routes that do this, there will be examples on the edges of independent cities of dead end roads that are partly still in a county.

Virginia does have primary routes that meet the OP criteria but are all facility routes:
318, 320, 322, 324, 325, 326, 328, 330, 335, 336, 341, 342, 345, 353, 355, 370, 371, 379, 382, 392, 394, 398

Mike

[wxfree]

Texas 165 is the state highway designation for the road through the state cemetery in Austin.  It has a sign and reference marker at the cemetery entrance.  It was previously connected to the rest of the highway system, most recently to Loop 343.  Loop 343 was decommissioned east of I-35, leaving SH 165 cut off.  The designation description and statewide planning map show the highway extending along Comal St. to Seventh St. (former Loop 343), but the only signage I see on Street View is at the cemetery entrance.  This is the only highway I know of with daily closing hours.

[froggie]

Prior to its turnback, MN 297 in Fergus Falls met this.  Pretty sure there are no others in Minnesota, nor are there any in Vermont.

[jeffandnicole]

NJ 44

[hbelkins]

US 160 cuts across the NW corner of New Mexico, and is the only road that connects to NM 597, the road to the Four Corners monument.

NM 597 would not count, because US 160 is a state (maintained) route.

[hbelkins]

NH 145 (US 3), VT 225 (US 2), NY 189 (US 11), ME 229, ME 10, ME 187, ME 183, and ME 185 (all US 1).

Wrong. They intersect US routes, which by definition are state routes.

[nexus73]

SR 197 in NorCal/Del Norte County connects US 101 to US 199.  There are no other state routes signed or unsigned connecting with SR 197.

Rick

[jeffandnicole]

US 160 cuts across the NW corner of New Mexico, and is the only road that connects to NM 597, the road to the Four Corners monument.

NM 597 would not count, because US 160 is a state (maintained) route.

NH 145 (US 3), VT 225 (US 2), NY 189 (US 11), ME 229, ME 10, ME 187, ME 183, and ME 185 (all US 1).

Wrong. They intersect US routes, which by definition are state routes.

The OP specifically said State Routes, not State maintained routes. Big difference.

[NE2]

NJ 44

Intersects I-295 and US 130 via state-maintained ramps.

[oscar]

Alaska has many examples of isolated numbered state routes. The closest in spirit to the OP's inquiry are AK 7's Haines segment, and AK 98 in Skagway. Both are non-islands, and connect to other roads, but you have to go through Canada (or catch a ferry to stay within Alaska). Ditto AK 10's Cordova segment, except there is no road connection at all -- only a ferry connection.

A complicating factor is that Alaska DOT&PF maintains most significant and even many insignificant roads in the state, including a lot of minor unnumbered highways and other roads. All three of the above have minor unnumbered state-maintained roads connecting to them.

[DTComposer]

For the moment, I believe CA-275 (also currently the shortest constructed route in California).

[hbelkins]

The OP specifically said State Routes, not State maintained routes. Big difference.

I was the OP! 

[dgolub]

NY 171 crosses NY 5S on an overpass, but here is no interchange, and that's the only place it has any contact with another state route.  NY 878 has two sections that don't connect, and one of them does not intersect any other state routes.  There's also the formerly unsigned NY 25C, which is now signed again due to a contractor error, so if you count that, then that's another one.

In New Jersey, NJ 13, NJ 64, and NY 152 come to mind, although the first of these is unsigned.  In Connecticut, I'm pretty sure that there aren't any.

[renegade]

Would US-212 across the northeastern corner of Wyoming count?

[hotdogPi]

Would US-212 across the northeastern corner of Wyoming count?

No, US 212 is not broken up by state.

Even if each state of a US route was its own route, it would touch US 212 in its neighboring states, so no.

[keithvh]

North Carolina State Route 128 ---- I was just on this road yesterday!!!  Goes to the top of Mount Mitchell, only road it intersects with is the Blue Ridge Parkway, which I don't think is part of the NC State Highway System (I think???)