state route endpoint oddities

[J3ebrules]

Texas State Highway 165...

How the hell would you even calculate the length of that?

Oh! A Pokémon! It's one of the Unown!

.... other millennials get it.

[CNGL-Leudimin]

Guys, I think I found the craziest example of it. Not a state-level highway, but a national-level highway. And an expressway, no less!

In China, G92 is such a next-level example of this.

It is in the shape of a lasso, forming a loop around the Hangzhou Bay with an northerly extension to Shanghai. (The northerly extension is not signed; check it out on Baidu or QQ's street view software. I can also verify because I have been there.) It provides access to the cities of Hangzhou, Shaoxing, Ningbo, and Jiaxing. All of its length (IIRC) is multiplexed with other national expressways. On top of it all, it ends at the Shanghai border.

Like, that would be like designating the Hampton Roads beltway as, I don't know, I-36, and then extending it along I-64 to the Newport News-Williamsburg border.

Most of it is independent of other routes. Hangzhou-Ningbo is solely G92, and so does the section from the Northern end of the Hangzhou Bay Bridge to Hangzhou. And I believe G92 extends all the way to that 5 expressway interchange in Minhang, Shanghai (albeit unsigned as you said).

[US 89]

Texas State Highway 165...

How the hell would you even calculate the length of that?

Just...add up the length of the segments? Utah has several routes like that serving various state institutions, colleges, driver’s test courses, and the like. Most of them aren’t signed, but SR 282 is one of the few that is.

[kphoger]

Texas State Highway 165...

How the hell would you even calculate the length of that?

Just...add up the length of the segments?

Yep.

For fun, I did exactly that with the Google Maps measuring tool.  My total was only 25 feet short of the TxDOT certified mileage–which is probably just due to slight discrepancies with each endpoint (I erred on the side of caution when measuring).

[WillWeaverRVA]

Texas State Highway 165...

How the hell would you even calculate the length of that?

Just...add up the length of the segments? Utah has several routes like that serving various state institutions, colleges, driver's test courses, and the like. Most of them aren't signed, but SR 282 is one of the few that is.

Virginia does the same thing. SH 165 reminds me a lot of VA 318, which until recently was completely isolated from the Virginia state highway system when it only consisted of roads within the State Capitol complex.

[sturmde]

Might've I-465 been a CT-145 situation before the designation of I-865?

That is a weird one... originally, I-465 began CW at I-74 NW of Indy, wrapped around and then ended CCW at I-74 NW of Indy, but closer in... and the rest was only signed IN 100, the original state route designation for the Indianapolis loop system (not all freeway, of course).  That made totally no sense, which is why at least the complete circle of Indy became I-465.  What didn't make sense when they extended 465 north, essentially ending at E-W 465... was that they kept it all 465 then.  The 865 solution was a great one.  Reduces confusion.  Glad to see Iowa do the same with I-880 being added, and I-680 ending at I-29 now.  Having been through there during flooding season... it makes it a lot easier to say "880 open to 29" as opposed to "680 open to 29" which didn't include the fact, that 680 and 29 were flooded southbound from the intersection....
.
BTW, St. Louis with 270/244/255 was certainly another way of signing a loop that didn't make a circular route, and same with 494/94/694 in the Twin Cities.