Numbered highways in remote places

[RoadMaster]

This is a very interesting topic, and I'm sure you will say the same thing.

This is about numbered highways being in an area inaccessible by connecting roads (state routes on islands, e.g.), even if a ferry connects them.

I know there's a lot in Canada, but I think there's a few in the U.S., too. (Please do not bring up Hawaii in this.)

[SSOWorld]

Well not exactly 'numbered' but Door County W in Wisconsin is on Washington Island - connected by Ferry only

[Hellfighter]

The one that comes to my mind is Ontario Secondary Highway 599.

[TheStranger]

The one that I think of first is Michigan's M-185, on Mackinac Island (with no direct road access to the mainland).

[Hellfighter]

That's not what I meant. That connects to ON-17.

Oh, I see. How about AK-7?

[oscar]

Oh, I see. How about AK-7?

That's a nifty triple play.  Four disconnected fragments, three of which (Juneau, Petersburg, Ketchikan) connect to other highways only by auto ferry.

The Cordova segment of AK 10 is similar, though while the route number is official enough (appearing on state highway maps), unlike the rest of AK 10 there are no route shields.

I know Hawaii's off-limits because the whole state is isolated, but even within Hawaii you have some really isolated numbered routes:  Lanai's HI 440 (only one state highway on the island, no auto ferry link to other islands), and Kahoolawe's K-1 and K-2 (not only no auto ferry connection, but visitation to the entire island is heavily restricted).

[froggie]

Lake of the Woods CSAH 49...in Minnesota's Northwest Angle.  One of only two places I'm aware of in the Lower 48 where you have to drive through a different country (Canada in both cases) to access the location.  And the other one, AFAIK, doesn't involve a route number.

A similar case exists with Campobello Island, NB, where NB 774 is "land accessible" only by going through Maine...though this one has ferry access to the rest of New Brunswick.

[mgk920]

Well not exactly 'numbered' but Door County W in Wisconsin is on Washington Island - connected by Ferry only

Also in Wisconsin, Ashland County 'M' (it's on Madeline Island) is only accessible via a ferry or winter ice road.

Mike

[Brandon]

The one that I think of first is Michigan's M-185, on Mackinac Island (with no direct road access to the mainland).

That one works, as does part of M-134 on Drummond Island.
There's M-154 in the Lake St. Clair delta region, near Sans Souci.

Mike, County H is also on Madeline Island according to the Wisconsin state map.

One would think with all the river changes over the years on the Mississippi and Ohio that Illinois night have a few, but Illinois has none like this.  Kaskaskia, the first state capitol, is connected to Missouri by local roads.  Not a single state nor county route accesses it in Illinois.

[Alps]

I know Hawaii's off-limits because the whole state is isolated, but even within Hawaii you have some really isolated numbered routes:  Lanai's HI 440 (only one state highway on the island, no auto ferry link to other islands), and Kahoolawe's K-1 and K-2 (not only no auto ferry connection, but visitation to the entire island is heavily restricted).

Are K-1 and K-2 signed?  I looked at the island and only saw one road that could reasonably be called a through road (the island's ring road).

[deathtopumpkins]

NC State Route 615 on Knotts Island is only accessible VIA a ferry to the NC mainland or across the Virginia border on Princess Anne Rd (fmr VA-615)

[J N Winkler]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

[oscar]

I know Hawaii's off-limits because the whole state is isolated, but even within Hawaii you have some really isolated numbered routes:  Lanai's HI 440 (only one state highway on the island, no auto ferry link to other islands), and Kahoolawe's K-1 and K-2 (not only no auto ferry connection, but visitation to the entire island is heavily restricted).

Are K-1 and K-2 signed?  I looked at the island and only saw one road that could reasonably be called a through road (the island's ring road).

AFAIK, Kahoolawe doesn't have a "ring road," though there is some talk about building a ring foot trail.  K-1, an unpaved two-lane road, runs along the island's west-east ridge; K-2 is a short spur from K-1.  Satellite photos indicate some additional roads or trails, especially at the island's west end where what passes for visitor facilities are located, but I'm not aware of their having assigned numbers.

My only info about the roads is from planning documents for the island. The plans, and related websites, have some photos but none of the roads.  So I have no idea whether they are signed. 

AFAIK, even though a state agency manages the island (with help from the private Protect Kahoolawe Ohana), Hawaii DOT doesn't do road maintenance on Kahoolawe.

Since visitation is so heavily restricted (basically, by permit only, for Hawaiian religious or cultural events, or environmental restoration projects), I doubt I or any other roadgeek will get to visit anytime soon.  Kahoolawe road photos are on my Hawaii Highway site's public "wish list," but none of my readers has obliged.   

[City]

Lake of the Woods CSAH 49...in Minnesota's Northwest Angle.  One of only two places I'm aware of in the Lower 48 where you have to drive through a different country (Canada in both cases) to access the location.  And the other one, AFAIK, doesn't involve a route number.

A similar case exists with Campobello Island, NB, where NB 774 is "land accessible" only by going through Maine...though this one has ferry access to the rest of New Brunswick.

Just curious... but what does CSAH stand for?

[froggie]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

MN 297 in Fergus Falls fits that bill.  It hasn't touched another route since US 59 was rerouted onto I-94 in the early 1990s.

Just curious... but what does CSAH stand for?

County State Aid Highway.  MnDOT uses the route designation specifically for county routes that are on the state aid system.

[rawmustard]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

Business M-32 in Hillman no longer connects to another state trunkline, as M-32 was realigned, and the old alignment was turned back. Business M-32 itself is very likely to be turned back very shortly after a reconstruction project wraps up.

[MikeTheActuary]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

I don't have a MD state highway map handy, and a very quick look in Google maps didn't turn up any examples, but I have a very distinct memory of a couple of bridges in Maryland having been assigned MD highway numbers, even though the road using the bridge wasn't otherwise a state highway.

[Scott5114]

As an answer to Johnathan's question: MO SSR-V connects only to Iowa state highways, none in MO.

[akotchi]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

NJ-64 is another good example. That is simply a bridge over the NJ Transit tracks in Princeton Junction, and is also signed as CR-571.

There are a few others in New Jersey like that, such as NJ-13 and NJ-162.

A full state highway (not just a bridge) that is similarly isolated is NJ-161 in Passaic County, just over a mile long.

[hbelkins]

I would like to ask a subsidary question.  Are there any examples of state highways, not necessarily on islands or in areas isolated by bodies of water, which do not intersect or otherwise connect directly with other roads on the state highway system?

Kentucky has a number of these, mostly unsigned and mostly frontage routes along interstates or parkways, or bridges on county routes across interstates or parkways. I also recall one instance of this in Madison County where a state-numbered segment of road was in the middle of a highway that was county-maintained on either end, but have never been in that part of Madison County and don't know if that's still the case or not.

[mgk920]

The one that I think of first is Michigan's M-185, on Mackinac Island (with no direct road access to the mainland).

Mike, County H is also on Madeline Island according to the Wisconsin state map.

Thanx, for some-odd reason 'M' was stuck in my mind on that one.

Mike

[njroadhorse]

NJ 324 has indirect access to US 322, but it does not actually touch it.

[Dougtone]

NY 171 in Frankfort, Herkimer County does not intersect with any other state route.  However, NY 171 does cross over NY 5S and end at an old alignment of NY 5S.  It's southern terminus is at a county route.

[florida]

The eastern section of FL 2 is both remote and does not connect to any other state route in Florida.

Also, FDOT uploaded the A. Max Brewer Bridge in Titusville as SR 406 for the new replacement bridge; this section does not touch US 1 at all (it starts about 1/2 mile to the east).

[OracleUsr]

Lake of the Woods CSAH 49...in Minnesota's Northwest Angle.  One of only two places I'm aware of in the Lower 48 where you have to drive through a different country (Canada in both cases) to access the location.  And the other one, AFAIK, doesn't involve a route number.

A similar case exists with Campobello Island, NB, where NB 774 is "land accessible" only by going through Maine...though this one has ferry access to the rest of New Brunswick.

How does that square with the Border crossing?  I ask because I want to get to the Head Harbour Lighthouse in a couple of years, and it seems the border agents would frown on a quick dart across the border, only to return to New Brunswick later...