Numbers derived from previous route numberings

[TheStranger]

My thread a few days ago on the 1934 California highway numbering system made me think of the times that a later route number for a road is a direct descendant of the previous one in some form, as this has occurred occasionally in this state.  Curious of examples elsewhere!

The California ones I can think of:

pre-1964
440 > 44 (technically a realignment after US 299 replaced the original 44, but 440 had been a child route of 44)
7 > 107 (the most notable early example, and still in existence today)
6 > 26 (the original 1934 Route 26 was gone by then, and US 6 needed to be accommodated)
8 eastern segment > 88

Wonder if one could count former 150 between Santa Barbara and the Solvang area becoming 154 in the late 1950s as part of this.

post-1964
5W > 505 and 580
466 > 46
24 in Concord > 242
30 east of San Bernardino > 330
71 southeast of Temecula > 371
11 > 110
7 > 710

[Max Rockatansky]

M-227 comes to mind out Michigan having been spun off when US 27 was decommissioned. 

[ilpt4u]

Something like Old US 51 becoming IL 251, when US 51 was put on the I-39 Freeway?

Were I-55 and I-44 derived from replacing part of the US 66 corridor (in addition to The Grid placement)?

[TheStranger]

Something like Old US 51 becoming IL 251, when US 51 was put on the I-39 Freeway?

I would consider that easily yeah. 

Other examples that I'm remembering now:

- MO 366 near St. Louis (former US 66)
- NY 417 (former NY 17 before the construction of the modern parallel expressway alignment to the north)
- Ottawa Road 417 (former Ontario Highway 17)

[ibagli]

Ohio has several of these in the 400s and 800s, on either old alignments of a current route (like OH-423 on a portion of US-23 that was bypassed), or a portion of a route that was truncated (the eastern end of OH-16 became OH-416 after a long concurrency with US-36 was eliminated).

[Bickendan]

Oregon's are a bit more obscure, but seem to have come as a result of ODOT and the OTC wanting to sign the ORH designations without external Routes as Routes as the ORH system was becoming more and more known by the general public (which still is probably in the dark about it, really) as some ORHs (notably 2 and 2W) would find their way on maps.

A couple examples (and they retain their underlying ORH number)
ORH 51 -> OR 551, because OR 51 already existed.
ORH 69 -> OR 569, because ODOT didn't want to deal with having 69 signed.
ORH 240 -> OR 540, because OR 240 already existed.

Some directly transitioned from ORH to OR without any modifications --
ORH 103 -> OR 103
ORH 131 -> OR 131

Some already inadvertantly matched their OR Route --
ORH 138 - OR 138
ORH 26 - US 26

And a trio I'm not too sure of are the non-spurred suffixed Highways:
ORH 1E -> ORH 91
ORH 1W -> ORH 9x?
ORH 2W -> ORH 92

(Spurred suffix Highways are rare; there are two I know off hand: 39Y (OR 18S), 422Y (OR 422S). Spur Routes like 104S (unsigned?), 42S have ORH 4xx numbers)

[jon daly]

CT-184 used to be CT-84. Then I-84 came to the state.

There was an interlude when it was CT-95. Kurumi used the phrase "number compatibility." I think that it was a gap between the CT and RI portions of I-95 at the time.

[froggie]

Semi-related:  about two dozen Minnesota state route numbers are loosely based on their original Constitutional Route.  These Constitutional Routes retained their original route number at least in part during the massive 1933 renumbering and route system expansion.

There are also the cases of MN 135 and MN 194, which were originally MN 35 and MN 94 respectively and renumbered when the Interstates came around.  I believe the reason why there isn't an I-294 is because MN 294 was already being used and MnDOT's predecessor did not feel like renumbering it.

[hotdogPi]

All state routes in MA that are 200+ have something to do with a lower-numbered route or are extensions of another state's state route.

I believe MA 203 used to be MA 3, but I'm not sure.
MA 225 used to be MA 25
MA 228 used to be part of MA 128 (not sure)
MA/NH 286 used to be MA/NH 86

213 and 240 are just related to 1xx instead of being on the same alignment, and 220 and 295 are extensions of routes from other states.

[SP Cook]

West Virginia.

The Silver Bridge crossed the Ohio just north of the Kanawha, and US 35 was the road on the north bank of the Kanawha; WV 17 was the route on the south bank.  The bridge collapsed and the replacement was built just south of the Kanawha, so WV 17 became US 35 and US 35 became WV 62.  Meanwhile, a section of Corridor G, signed as US 119 was completed on a different alignment from the original, so the state repurposed 17, renaming this bypassed section of US 119, WV 17.  But now, US 35 is getting a long needed upgrade, and the old US 35, which is the old WV 17, is being renumbered WV 817.

US 52 used to follow a inland route in Wayne County, through the town of Wayne, crossing I-64 at the 5th Street Hill in Huntington, and then following city streets to the 6th Street Bridge into Ohio.  A new alignment moved US 52 to follow the Big Sandy further west.  The state renamed the old US 52 as WV 152 up to the JCT with I-64, and then as WV 527 from that point (this was because Ohio and WV use joint state route numbers for Ohio River bridges and Ohio already was using OH 152 elsewhere, but why the whole route was not named WV 527 is unknown). 

US 21 was decommissioned north of Wytheville, VA, WV renamed the old US 21 north of Charleston as CR 21 (remember in WV, a CR is just a part of the numbering system, still under state control), and a small part of US 21 in Beckley was renamed as WV 210.

If ever built, the Coalfields Expressway, will carry US 121, subject to approval, as if it was a child route of US 21, which it would be, if US 21 still existed.  The small part currently open is signed as WV 121.

[Big John]

Illinois 38 was preceded by US 30A.  Just pronounce those together.

Wis 241 was US 41 routing.

[Avalanchez71]

Mississippi does this with old alignments of US highways.  I know of one instance of this sort in Tennessee. 

SSR 243 is the old alignment of US 43 from Mount Pleasant to Columbia.

[TheStranger]

Ohio has several of these in the 400s and 800s, on either old alignments of a current route (like OH-423 on a portion of US-23 that was bypassed), or a portion of a route that was truncated (the eastern end of OH-16 became OH-416 after a long concurrency with US-36 was eliminated).

OH 800 itself is a former segment of OH 8 (and longer than the remaining portion of OH 8) that was created in 1969 to avoid a concurrency with I-77.

[kurumi]

Most CT state routes above 220 "rhyme" (have the same number modulo 100) of an earlier unsigned state road. For example, CT 305 was SR 905; CT 263 was SR 863. (There are a few oddballs like 286 and 287 where I haven't found the origin yet.)

Some signed route history comes in to play as well: CT 289 was part of 89; CT 209 was part of 109; CT 272, CT 372 and (older) SR 572 were parts of 72.

[ClassicHasClass]

My thread a few days ago on the 1934 California highway numbering system made me think of the times that a later route number for a road is a direct descendant of the previous one in some form, as this has occurred occasionally in this state.  Curious of examples elsewhere!

There's former LRNs too, like CA 58.

[jon daly]

Most CT state routes above 220 "rhyme" (have the same number modulo 100) of an earlier unsigned state road. For example, CT 305 was SR 905; CT 263 was SR 863. (There are a few oddballs like 286 and 287 where I haven't found the origin yet.)

Some signed route history comes in to play as well: CT 289 was part of 89; CT 209 was part of 109; CT 272, CT 372 and (older) SR 572 were parts of 72.

DIGRESSION ALERT:

I spent most of my childhood in Ellington, CT, so I am very aware of the L-shaped CT-286.

You may now return back to topic.

[TheStranger]

My thread a few days ago on the 1934 California highway numbering system made me think of the times that a later route number for a road is a direct descendant of the previous one in some form, as this has occurred occasionally in this state.  Curious of examples elsewhere!

There's former LRNs too, like CA 58.

The other route that went from LRN to post-1964 number was Route 189 (which if I hadn't known that history, would appear to be a child route of the nearby Route 18).

[cbeach40]

For Ontario, obvious cases where a 400-series route has superseded a King's Highway route (407, 410, 412, 416, 417, 420, 427).

My favourite one is Hwy 144, which used to be Secondary Highway 544. But they kept it going with an old alignment that has an MTO internal number of 7044.

[Hot Rod Hootenanny]

Ohio has several of these in the 400s and 800s, on either old alignments of a current route (like OH-423 on a portion of US-23 that was bypassed), or a portion of a route that was truncated (the eastern end of OH-16 became OH-416 after a long concurrency with US-36 was eliminated).

Several numbers, in Ohio, got recasted outside of the 400 & 800 series...
Former US 30 S became Oh 309
Former Alt US 50 became Oh 550
Western half of Oh 113 became Oh 613
---
Within Ohio's 400 series, a couple of numbering oddities.
When US 42 bypassed Lodi, the old section was numbered 421 (instead of 442)
When Oh 4 was rerouted between Springfield and Dayton (bypassing Wright-Patterson AFB), some of the old routing was numbered 444 (instead of 404)
As mentioned previously upthread, former Oh 8 (south of Canton) became Oh 800 (instead of 808)

[hbelkins]

Kentucky has been doing this recently when the state keeps control of a highway that's bypassed by a new alignment. Examples are KY xx50 along the old route of US 150 in Rockcastle and Lincoln counties,and KY 3630 along the old route of KY 30 in Jackson and Laurel counties. There's also a KY xx27 along the old route of US 27 in Pulaski County north of Somerset.

SP mentioned the WV 152 example and I also think WV 211 may have been an old route of US 21.

[The Ghostbuster]

In Spooner, WI, STH-253 was part of US 53 until the Spooner bypass opened in 1988. Also, the Miller Parkway (formerly the Stadium South Freeway) in Milwaukee was STH-341 (unposted) from 1999, when US 41 was relocated to an all-freeway alignment between Interstate 94's Exits 308 B-C and former Exit 325, until 2015 when STH-341 became the southernmost portion of STH-175.

[TheHighwayMan3561]

Semi-related:  about two dozen Minnesota state route numbers are loosely based on their original Constitutional Route.  These Constitutional Routes retained their original route number at least in part during the massive 1933 renumbering and route system expansion.

There are also the cases of MN 135 and MN 194, which were originally MN 35 and MN 94 respectively and renumbered when the Interstates came around.  I believe the reason why there isn't an I-294 is because MN 294 was already being used and MnDOT's predecessor did not feel like renumbering it.

There are also MN 149 and MN 156, which are surviving segments of the original MN 49 (later decommissioned fully) and MN 56 after those became discontinuous.

[US 89]

The second US 164 was probably numbered after the Arizona state route it largely replaced, AZ 64. It never connected to US 64 during its existence, since 64 ended in Santa Fe at the time (although 64 now ends at old 164). In addition, Arizona state routes 264, 364, and 564 branched off US 164 during its existence.

[frankenroad]

Some additional Ohio examples include

When US-25 was decommissioned in Ohio, part of it was made OH-25 and multiple segments are called County Road 25A

When US-21 was decommissioned, part of it became OH-21 and part became OH-821

Not sure if this counts, but when the great renumbering of the mid-1920s happened, most of old rt 28 became US-42, but at London, 42 turned more northerly and the balance of old 28 became OH-142.

[Revive 755]

* IL 267 is a former alignment of US 67, and had also been prior to the last sawp.
* MO 267 and MO 367 in the St. Louis area are both former alignments of US 67