Numbers derived from previous route numberings

[sbeaver44]

PA 106, 120, 230, 309, and 611 are all former US Routes decommissioned into their respective PA routes.

NY 414 used to be NY 44, but then US 44 happened and it was renumbered, wiki says around 1935.

Portions of PA 136 and PA 844 were one part of a longer PA 31.

PA 462 is a previous alignment of US 30.

Everybody's 2nd favorite section of I-70 in PA (Washington-New Stanton) was originally PA 71 Alternate.

PA 378 was I-378, until PennDOT had to move I-78 to the south of Allentown and Bethlehem.

PA 655 was previously PA 76 before I-76 happened.

PA 199 is mostly old US 220.

PA 405 is a hodgepodge of former alignments of many routes including PA 147, and US 111/220/711.

PA/MD 97 from Gettysburg to Westminster and then MD 140 from Westminster to Baltimore were once US 140.

PA 297 was PA 295 until December 2018.

MD 45, Business I-83, and certain portions of PA 297, 382, and 392, were previously US 111.  I-83 itself was an upgraded US 111, at least in PA.

Portions of PA 382 and PA 114 were once a part of a longer PA 24.

[DJ Particle]

MN (not mentioned earlier):

Some county routes got their numbers from previous state/US highway designations, like Ramsey-49, Hennepin-122, Hennepin/Anoka-81, three different counties of County 101, and numerous instances of County 61 north of the Twin Cities.  Also, part of Hennepin-152 used to be a former routing of US-52.

Sometimes a future routing will get a temporary number based off its future number, like when MN-312 existed before that freeway was completed to be US-212.

MA:

Yes, MA-203 was old MA-3... as was MA-53 and most of MA-3A (the portion of MA-3A from Kingston to Quincy was always MA-3A)

Yes, MA-228 was part of MA-128...sorta...but that part of MA-228 (Derby Rd) is no longer even MA-228 (it used to have an odd routing in that area where 228 North ran along its current routing from Exit 14, but 228 South ran along Derby Rd to Exit 15, but that was scrapped last decade - both directions now meet MA-3 at Exit 14) .  It was MA-128 before the MA-3 freeway reached north enough to join it.

MA-149 was once MA-49

MA-124 was once MA-24, until the number got re-assigned to the current freeway.

And many older routings of current state routes that retain its designations as state highways carry the "A" designation, like most of the aforementioned MA-3A, and also MA-6A, MA-28A, MA-2A, etc...  There is an anomaly in Seekonk where MA-114A not only was never MA-114, but it's signed that way as an alternate to **RI-114**.

[MNHighwayMan]

Also, part of Hennepin-152 used to be a former routing of US-52.

That road was also, for a while, MN-152, which is where the county designation probably comes from.

[froggie]

^ MNHighwayMan's right.  CSAH 152 stems from MN 152.  The only part of CSAH 152 that was ever a former part of US 52 was along Washington from 3rd Ave to West Broadway.  North of West Broadway was MN 152 for 50ish years before being turned back to the county in stages from 1980 to 1988.

[NWI_Irish96]

In Indiana, along the new US-24 expressway/Hoosier Heartland Highway, former routings of US-24 which still service towns or have plenty of traffic are designated x24.  I believe the same is true along US-31.

The only state highways currently numbered x24 are 124 and 524, and while both derive their numbering from US 24, I can't find any previous routing of US 24 that follows those routes.  Former routings through Wabash and Peru are designated as Bus US 24 (though poorly signed) and former routings through Fort Wayne, Huntington and Logansport are not designated as anything.

Former routings of US 30 and US 31 do have 900 series state routes along former routings in Fort Wayne, South Bend and Kokomo.

[PHLBOS]

Yes, MA-228 was part of MA-128...sorta...but that part of MA-228 (Derby Rd) is no longer even MA-228 (it used to have an odd routing in that area where 228 North ran along its current routing from Exit 14, but 228 South ran along Derby Rd to Exit 15, but that was scrapped last decade - both directions now meet MA-3 at Exit 14) .  It was MA-128 before the MA-3 freeway reached north enough to join it.

Actually, MA 228 came into existence circa 1967; several years after the Pilgrim's Highway (current MA 3) was completed. 

It, along with the truncation of 128 to Braintree at the time, likely was done due to the increased usage of direction cardinals on routes throughout the state.  At the time, MA simply used just the route number(s) for signage.  Such created a rather awkward scenario where the then-southernmost leg of 128 (current 228) ran opposite with respect to actual direction of the road (i.e. northbound was actually south & vice-versa).

[Takumi]

VA 293 was US 29
VA 158 was US 58A
VA 457 was VA 57
VA 360 was US 360
VA 13 was VA 13 (that’s not a typo)

[DJ Particle]

It, along with the truncation of 128 to Braintree at the time, likely was done due to the increased usage of direction cardinals on routes throughout the state.  At the time, MA simply used just the route number(s) for signage.  Such created a rather awkward scenario where the then-southernmost leg of 128 (current 228) ran opposite with respect to actual direction of the road (i.e. northbound was actually south & vice-versa).

So there was a time when 128 was co-signed to (current) Exit 15 AFTER the freeway was done?  Didn't know that.  I knew 128 was signed over current 228 due to a map I found from the early 1960s, but I didn't know how it got to its late-1970s configuration.

[D-Dey65]

I just remembered another one. Hernando CR 439 from former Florida State Road 39.

Actually I remembered it on the day I posted my message about CR 550, but I put off that addition.


Oh, and there's also Hernando CR 541 from former Florida SR 41. Did you know there are signs in Pasco County that still call it Hernando CR 41?

[michravera]

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

And don't forget part of and extension of US-50 became CASR-51 (and I wish to hell that they would sign it that way!).

CASR-12-> CASR-121; CASR-16 -> CASR-160;

[Max Rockatansky]

Here is a couple from the California State Highway renumbering:

CA 58 replaced parts of CA 178 and US 466 but was derived from Legislative Route Number 58.

LRN 189 became CA 189. 

Some obvious ones like 99, 66, 91, 60 and 299 came from previous US Route designations.  Some Signed County Routes like S80 and San Bernardino County Route 66 came from US Route designations.  Some Signed County Routes like J59 and J132 are obvious extensions of State Highways.  N7 might be a reference to the original CA 7 or a coincidence. 

[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

And don't forget part of and extension of US-50 became CASR-51 (and I wish to hell that they would sign it that way!).

CASR-12-> CASR-121; CASR-16 -> CASR-160;

221 in Napa is an interesting example, as the number was originally planned in that area for a bridge that never was built, but the route it ended up on (former Route 29) operates as a spur from Route 121.

[hubcity]

The only Jersey answer that truly meets the OP's intent is current Route 109 being former US 9. The next closest example is NJDOT playing Two Away when renumbering the former alignment of US 322 to the Chester, PA ferry to Route 324.

There's a few more:

NJ 138 was the eastern portion of the discontinuous NJ 38; the western portion kept the numbering, but the eastern portion displayed mile markers that included the never-built mileage until they were updated after its 1988 renumbering.

NJ 139 is what was Business US 1&9; the number was chosen because "3" resembles an ampersand.

NJ 19 and NJ 120 were each discontinuous former designations of NJ 20 (yes, there were once three "NJ 20"s in existence simultaneously. Of course, in those days you could also find signs directing you to NJ 18 North, South, East and West.)

[CNGL-Leudimin]

VA 13 was VA 13 (that's not a typo)

In that vein, part of (the third) US 401 was (the second) US 401 .

[sandwalk]

Another Ohio example:

Former sections of State Route 18 east of Akron in Portage County (Tallmadge Road) and Mahoning County (Mahoning Avenue) are County Road 18.

[SGwithADD]

In Western PA, PA 380 used to be PA 80, but was renamed to avoid confusion with I-80.

In Sullivan County, NY, pre-expressway segments of NY 17 have been renumbered as the CR 17x series.

[bugo]

OK 40A is a spur of US 177 that connects to Carney. The number seems odd until you realize that US 177 was extended south along what was then OK 40 around 1965. Some suffixed routes were renumbered to match the parent highway. OK 412P used to be OK 33G while OK 271A was renumbered from OK 2A. Don't get me started on OK 251A, OK 251B, OK 251C, OK 251D and OK 251E. There has never been an OK 251 to my knowledge.

[bugo]

AR 365 (former US 65)
AR 367 north of Jacksonville (former US 67)
AR 367 south of Little Rock (former US 167)
AR 463 (former US 63)
OK 164 (former US 64)

Former AR 471 (former US 71)

Not to mention the old US routes in Mississippi like 145, 149, 178 and 182.

[bugo]

Arkansas renumbered several of their state highways around the time the Interstates were commissioned:

AR 30 became AR 130
AR 40 became AR 140
AR 55 became AR 355

Arkansas doesn't typically duplicate state highway numbers between state routes and US highways and state highways. There are a few exceptions like US 59 and AR 59 and I-49 and US 49. When US 371 was established in 1994, AR 371 was renumbered to AR 13. Similarly, when US 278 was extended into Arkansas in 1998, there were three segments of AR 278 which were renumbered AR 160, AR 169 and AR 189. I-49 famously duplicates its number with US 49. At least the two highways are on opposite sides of the state. There is no word whether AR 57 and AR 69 will be renumbered. The other two duplications are I-440 and AR 440, and I-530 and AR 530. Both highways are future interstates. When these highways are upgraded to Interstates they will keep the same number.

[bugo]

MN (not mentioned earlier):

Some county routes got their numbers from previous state/US highway designations, like Ramsey-49, Hennepin-122, Hennepin/Anoka-81, three different counties of County 101, and numerous instances of County 61 north of the Twin Cities.  Also, part of Hennepin-152 used to be a former routing of US-52.

Sometimes a future routing will get a temporary number based off its future number, like when MN-312 existed before that freeway was completed to be US-212.

MA:

Yes, MA-203 was old MA-3... as was MA-53 and most of MA-3A (the portion of MA-3A from Kingston to Quincy was always MA-3A)

Yes, MA-228 was part of MA-128...sorta...but that part of MA-228 (Derby Rd) is no longer even MA-228 (it used to have an odd routing in that area where 228 North ran along its current routing from Exit 14, but 228 South ran along Derby Rd to Exit 15, but that was scrapped last decade - both directions now meet MA-3 at Exit 14) .  It was MA-128 before the MA-3 freeway reached north enough to join it.

MA-149 was once MA-49

MA-124 was once MA-24, until the number got re-assigned to the current freeway.

And many older routings of current state routes that retain its designations as state highways carry the "A" designation, like most of the aforementioned MA-3A, and also MA-6A, MA-28A, MA-2A, etc...  There is an anomaly in Seekonk where MA-114A not only was never MA-114, but it's signed that way as an alternate to **RI-114**.

Sometimes a future routing will get a temporary number based off its future number, like when MN-312 existed before that freeway was completed to be US-212.

Arkansas has been doing this in recent years. I-49 from Doddridge north to US 71/59 north of Texarkana was originally AR 549 (Part of the highway in Texarkana was once AR 245.) There is a completed section of Future I-49 south of Fort Smith that is signed AR 549 and two lanes of the Bella Vista bypass is also AR 549. Incidentally, the section of I-49 from I-40 to the AR 282 junction near Mountainburg was originally AR 540. At what was then the end of the freeway, AR 540 was signed along AR 282. AR 540 then ended at US 71.

There is also AR 612 (Future US 412) in Springdale. Some parts of future interstates were once spur routes. What is now the western half of the Pine Bluff I-530 bypass was opened as Spur US 65S and part of the future Monticello I-69 bypass is officially designated as Spur US 278 (I'm not sure how it is signed in the field.)

[djlynch]

Texas has SH 75, SH 81, and SH 290 replacing segments of US highways that were truncated to the end of a long multiplex with an interstate. Beyond that, I can't think of any. TxDOT seems to just go for the next number on the list.

[PHLBOS]

It, along with the truncation of 128 to Braintree at the time, likely was done due to the increased usage of direction cardinals on routes throughout the state.  At the time, MA simply used just the route number(s) for signage.  Such created a rather awkward scenario where the then-southernmost leg of 128 (current 228) ran opposite with respect to actual direction of the road (i.e. northbound was actually south & vice-versa).

So there was a time when 128 was co-signed to (current) Exit 15 AFTER the freeway was done?

Correct.  As a matter of fact & based on old MassDPW maps, between 1959 and 1963, the northern/upper portion of the Pilgrim's Highway was initially signed as just 128.  The MA 3 designation was added after the final piece of the Pilgrim's Highway was completed.  It was at this point and time that MA 3 ran along the Southeast Expressway up to Granite Ave. (Exit 11) and exited off. 

The current MA 3 routing along the entire Southeast Expressway, most of the Central Artery/O'Neill Tunnel a portion of Storrow Drive, the Longfellow Bridge and Memorial Drive east of the BU Bridge dates back to 1971.  At that time, the former-MA 3 alignment between the Expressway (I-93) and the former-US 1 (until 1989) in Jamaica Plain became MA 203

[bob7374]

MA:
Yes, MA-203 was old MA-3... as was MA-53 and most of MA-3A (the portion of MA-3A from Kingston to Quincy was always MA-3A)

Yes, MA-228 was part of MA-128...sorta...but that part of MA-228 (Derby Street) is no longer even MA-228 (it used to have an odd routing in that area where 228 North ran along its current routing from Exit 14, but 228 South ran along Derby Street to Exit 15, but that was scrapped last decade [actually 1990s]- both directions now meet MA-3 at Exit 14) .  It was MA-128 before the MA-3 freeway reached north enough to join it. [The 128 route was moved to the current 228 route in Rockland in 1961 when the current MA 3 route (Pilgrims Highway) was extended from current exit 15 to Exit 14. MA 3 was moved onto Pilgrims highway when the route was completed from Pembroke to Rockland in 1963.]

That didn't stop MassDOT from updating the obsolete signage last year:


A current project to widen the intersection of Derby Street and MA 53 hopefully will remove the incorrect signs.

[Mapmikey]

VA 13 was VA 13 (that's not a typo)

In that vein, part of (the third) US 401 was (the second) US 401 .

In the case of the 2 va 13s they were on the same road within a couple years and my theory is that va 13 signage from the original version may have still been up and that is why today's va 13 got its number instead of becoming va 284 which was the designation of the us 60 new route before it was fully opened.

The us 401 example was 20 years apart.

Another Virginia example is va 228 used to be va 28.

[Flint1979]

Also in Michigan M-247 was once part of M-47. The only part of the current M-47 that is part of the original M-47 is the southern most part between M-58 and M-46. M-47 use to run on a different route north of M-58. The current M-47 north of there was part or US-10 and M-47 ran on a concurrency with US-10 to the current M-84 and went on M-84's route towards Bay City. Most of M-84 and about two thirds of M-58 took over the route. M-58 was actually created after an extension of M-81 was scaled back after I-675 opened. M-81 ends at M-13 near the Grey Iron plant.