Three-Digit Roads That Are Longer Than Their Parent

[NE2]

Not all states consider three-digit routes to be children of parents. That's certainly not the case in Kentucky.

It is the case for several routes that were numbered before other 1xx routes: 111, 152, 155, and 181. (Other than 100, these are the only three-digit numbers on the 1930 official.) 162 may have also been numbered as a spur of US 62.

There are also recent four-digit examples, such as 3630 on old 30.

[hotdogPi]

Not all states consider three-digit routes to be children of parents. That's certainly not the case in Kentucky.

It is the case for several routes that were numbered before other 1xx routes: 111, 152, 155, and 181. (Other than 100, these are the only three-digit numbers on the 1930 official.) 162 may have also been numbered as a spur of US 62.

There are also recent four-digit examples, such as 3630 on old 30.

In Massachusetts, most 2xx are related to xx (or 113, in the case of 213), but 1xx is usually unrelated to xx.

[roadman65]

You know its kind of hard to save three digit numbers to be children of two digit routes as there are not enough numbers to go around in many states.

I must say that MA is smart keeping the 2xx for child spurs as I doubt that Mass would ever go above 200 commissioned routes in a lifetime.

Delaware, brings up an interesting note, that it could reserve all of its 3 digits for spurs of its two digits being it has a small road network.  Remember all of its current 3 digits are only commissioned because they cross state lines and are part of neighboring MD and PA's highway network as well hence DE 100, DE 273, DE 404, and DE 896. Even DE 299, which is not connected to any other state's network, was at one time connected to MD 299. DelDOT, or whoever they were originally, decided it was best to keep the numbers in continuity with their neighbors there to help better serve the motoring public.

[bugo]

US 266 is FAR, FAR longer than US 66.

[CNGL-Leudimin]

And US 166 is EVEN longer than US 266.

[hbelkins]

It is the case for several routes that were numbered before other 1xx routes: 111, 152, 155, and 181. (Other than 100, these are the only three-digit numbers on the 1930 official.) 162 may have also been numbered as a spur of US 62.

111 doesn't intersect 11, and 152 doesn't intersect 52.

There are also recent four-digit examples, such as 3630 on old 30.

It might be a stretch but there's a portion of old 150 that's numbered 2750.

[jeffandnicole]

And it varies how states use XYY numbers when they're not interstate related.  Normally, a Odd XYY is a Spur off an interstate, and an Even XYY is a loop.  In NJ, 47 is the parent.  147 acts as a spur leading to Wildwood, except there's a 3 mile gap between 47 & the beginning of 147, which actually starts at US 9.  347 is a loop (really, a shortcut) that connects to 47 on both ends.

[Zeffy]

And it varies how states use XYY numbers when they're not interstate related.  Normally, a Odd XYY is a Spur off an interstate, and an Even XYY is a loop.  In NJ, 47 is the parent.  147 acts as a spur leading to Wildwood, except there's a 3 mile gap between 47 & the beginning of 147, which actually starts at US 9.  347 is a loop (really, a shortcut) that connects to 47 on both ends.

NJ 129 and NJ 29 are related, as are NJ 33 and NJ 133, but then you have examples such as NJ 79 and NJ 179 not being related in anyway whatsoever.

[US 41]

US 138 and US 199 who's parent routes no longer exist, as well as the 2 US 66 spurs.

[NE2]

It is the case for several routes that were numbered before other 1xx routes: 111, 152, 155, and 181. (Other than 100, these are the only three-digit numbers on the 1930 official.) 162 may have also been numbered as a spur of US 62.

111 doesn't intersect 11, and 152 doesn't intersect 52.

111 at least implicitly connects to 11.
152 may have never connected to 52, but the reason for numbering is clear.

[Bruce]

WA-231 is longer than WA-23

[hbelkins]

It is the case for several routes that were numbered before other 1xx routes: 111, 152, 155, and 181. (Other than 100, these are the only three-digit numbers on the 1930 official.) 162 may have also been numbered as a spur of US 62.

111 doesn't intersect 11, and 152 doesn't intersect 52.

111 at least implicitly connects to 11.
152 may have never connected to 52, but the reason for numbering is clear.

I think I knew KY 37 for US 421, but I don't think I knew that KY 50 was on the US 62 routing. Only KY 50 I'd ever seen was on 421 between Frankfort and Lexington.

[NE2]

I think I knew KY 37 for US 421, but I don't think I knew that KY 50 was on the US 62 routing. Only KY 50 I'd ever seen was on 421 between Frankfort and Lexington.

There were at least three 50s, ending up as US 62, US 421, and KY 512: http://en.wikipedia.org/wiki/Wikipedia:WikiProject_U.S._Roads/Kentucky/All-time_list
The last one was a rather minor 3-mile route, probably assigned because they weren't skipping any numbers.

[hbelkins]

I think I knew KY 37 for US 421, but I don't think I knew that KY 50 was on the US 62 routing. Only KY 50 I'd ever seen was on 421 between Frankfort and Lexington.

There were at least three 50s, ending up as US 62, US 421, and KY 512: http://en.wikipedia.org/wiki/Wikipedia:WikiProject_U.S._Roads/Kentucky/All-time_list
The last one was a rather minor 3-mile route, probably assigned because they weren't skipping any numbers.

Got on that page and started clicking through to some of the links. The US 460 in Kentucky page has a bunch of errors, including mistaking Paintsville Lake for Fishtrap.

[jp the roadgeek]

I'm guessing that US 250 is also longer than US 50 in both West Virginia and Virginia.

And so is US 340 vs. US 40.  Even US 522 in MD is longer than its segment of US 22.  DE 141 is also longer than DE 41.  RI 102 is longer than RI 2.  CT 111 is longer than the finished CT 11 , as are (not including roads where the 2 digit route doesn't exist) 127 vs. 27, 140 vs 40, 243 vs. 43, 169 vs. 69, 173 vs. 73, 178 vs 78  , 179 vs. 79, 187 vs. 87, 189 vs. 89.  NY 120A's section that straddles the NY border and even enters CT is longer than CT 120 itself (70 miles away)

[NE2]

I don't know how Wikipedia works.

[SteveG1988]

Question about PA and 3Di's, are PA 413/513 spurs of US13 that are just unoffical? Since both do connect 13 to other places, and would make sense as a 3di US route (mostly for 413)

[NE2]

Question about PA and 3Di's, are PA 413/513 spurs of US13 that are just unoffical?

Yes, they're unofficial. Someone snuck the signs up without PennDOT's blessing.

Actually they're spurs of 113: http://m-plex.com/roads/family1.html#pa13

[hbelkins]

I don't know how Wikipedia works.

Heh. I know perfectly well how it works, which is why I take anything I see on Wiki with a two-ton truckload of salt.

[SteveG1988]

I know in NJ any state route connected to another state route takes the out of state route number, PA73 and NJ73, with PA73 as the parent. Are there any other states with this rule, if so, are there any state rotues where the out of state parent is the shorter?

[NE2]

I know in NJ any state route connected to another state route takes the out of state route number, PA73 and NJ73, with PA73 as the parent. Are there any other states with this rule, if so, are there any state rotues where the out of state parent is the shorter?

What's the parent and what's the child when both were created at the same time? Or even more confusingly, NY 17 was numbered to match NJ 17, but then NJ 17 became NJ 2 in 1927 and was renumbered NJ 17 in the 1940s to match New York.

DE 48 comes from NJ 48, which was once much longer but now DE 48 is longer.

BC 97 is about twice the length of US 97.

[The Nature Boy]

I've seen Vermont roads take NH route numbers when they cross the line but these designations never seem to last long and are purely for ease of the driver.

Example: NH 10A extends into Vermont as Vermont 10A. Vermont 10A has nothing to do with Vermont's own route 10. Luckily for Vermont drivers, this literally only lasts 0.5 miles so it doesn't cause confusion.

[cl94]

Vermont often takes New York numbers and it happened once the other way. These are VT 22A, VT 149, VT 67 (original number, but NY came first), VT 346, VT 313, VT 314, and NY 74.

[PurdueBill]

I've seen Vermont roads take NH route numbers when they cross the line but these designations never seem to last long and are purely for ease of the driver.

Example: NH 10A extends into Vermont as Vermont 10A. Vermont 10A has nothing to do with Vermont's own route 10. Luckily for Vermont drivers, this literally only lasts 0.5 miles so it doesn't cause confusion.

MA 114A is the prime example in Mass. of this, being related to RI 114, not MA 114.  MA 295, numbered to match NY 295 and violating Mass's rules of otherwise unique numbering (US 3 and MA 3 being "the same" route in that world).

Bringing my post semi-onto the thread topic, I-495 in Mass is longer than I-95 in Mass.  That's only semi-back onto topic, but better than nothing.

[bugo]

Why isn't MA 3 a part of US 3? It makes zero sense.