*FL 9336
*Saratoga CR 1345
*Hunterdon CR 751
*Middlesex CR 807
*US Routes 163, 400, 412, and 425
*Interstates 87 (S), 99 and 238
Any others?
IN 152. Not that 152 is such an unusual number for a route, but in Indiana, 3di routes are based on a parent route that is either connecting or parallel, and US 52 doesn't come anywhere near 152. Based on the state's numbering conventions, it should be an x41.
CA 330 and CA 371 are kind of oddballs given they were once two-digit state highways with a "3" tacked on. In the early Signed State Route era you had the likes of CA 740 and CA 440 which seemed to be place holder designations for potential US Route corridors. AZ 24 is totally out of sequence with the 60-99 two digit highway convention and seems to have been randomly drawn from a hat. NV 28 and NV 88 are continuations of pre-1976 State Highway numbers and have a Californian Counterpart. FL 300 was once FL G1A.
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*US Routes ... 400, 412, and 425
Please see below (although the veracity of some of this info has been called into question on these boards, it has not actually been debunked).
Quote from: formulanone on December 22, 2017, 07:07:28 AM
US 412 is a NHS/ISTEA High Priority Corridor, and was designated in 1982 (see https://www.aaroads.com/high-priority/corr08.html ). It might become a future Interstate. US 425 was added to the US route system in 1989; this is the preferred corridor for any future extension of I-530 to I-69. Part of US 425 is included in the I-69 corridor (see 6.4 ). US 371 was added as a branch route of US 71 in 1995 in LA and AR. US 400 is also a NHS/ISTEA High Priority Corridor, added to the US system in 1996, the newest US route (see https://www.aaroads.com/high-priority/corr03.html ). The number was picked by Kansas DOT out of a list of available numbers, and agreed to by Missouri and Colorado. US 400 is also planned as a future extension of I-66.
Quote from: kphoger on November 26, 2019, 04:30:35 PM
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*US Routes ... 400, 412, and 425
Please see below (although the veracity of some of this info has been called into question on these boards, it has not actually been debunked).
Quote from: formulanone on December 22, 2017, 07:07:28 AM
US 412 is a NHS/ISTEA High Priority Corridor, and was designated in 1982 (see https://www.aaroads.com/high-priority/corr08.html ). It might become a future Interstate. US 425 was added to the US route system in 1989; this is the preferred corridor for any future extension of I-530 to I-69. Part of US 425 is included in the I-69 corridor (see 6.4 ). US 371 was added as a branch route of US 71 in 1995 in LA and AR. US 400 is also a NHS/ISTEA High Priority Corridor, added to the US system in 1996, the newest US route (see https://www.aaroads.com/high-priority/corr03.html ). The number was picked by Kansas DOT out of a list of available numbers, and agreed to by Missouri and Colorado. US 400 is also planned as a future extension of I-66.
But why those numeros? Why not US 402, US 414, or US 426?
There are two US Routes newer than US 400: US 48 (Corridor H) and US 121 (Schrödinger or Alanland highway, in that it exists and doesn't exist).
As for other unusually numbered US Routes, I'd include US 44 and 46 (too far North), US 59 (too far West), US 33 (nominally North-South but mostly signed East-West), US 220 and former 666 (nominally East-West but signed North-South). US 6 only became an oddball when it was extended all the way to the West coast, its original terminus was Erie, Pennsylvania.
Internationally we have:
- Any freeway numbered A-70 and above in Spain
- A20 in France
- All the Ax(M) motorways in the UK, notably A1(M) and A74(M), as well as A601(M)
- SS 107 bis dir A in Catanzaro, Italy. Italian numbering is really crazy with all those suffixes, but that ramp takes the cake
MN-197 in Bemidji. Not related to MN-97, nor is it the route's legislative route number. Just an arbitrary high number (lots of available lower numbers) for a route that should really be a business route of either US-2 or US-71.
Quote from: cabiness42 on November 26, 2019, 04:11:19 PM
IN 152. Not that 152 is such an unusual number for a route, but in Indiana, 3di routes are based on a parent route that is either connecting or parallel, and US 52 doesn't come anywhere near 152. Based on the state's numbering conventions, it should be an x41.
IN 152 is part of the former US 152, which was the original Lafayette-to-Hammond route in the 1930s (1935-38). It became IN 152 in 1938. Most of that old route is now US 231. The current IN 152 runs from the Borman Expressway (I-80 & 94/US 6 & 41) to US 20, about 2.5 miles.
Quote from: Max Rockatansky on November 26, 2019, 04:16:31 PM
AZ 24 is totally out of sequence with the 60-99 two digit highway convention and seems to have been randomly drawn from a hat.
ADOT apparently is assigning two-digit numbers below 60 to new non-Interstate, non-loop freeways. AZ 24 is the Gateway Freeway, which will get a new (temporary) non-freeway segment, with construction starting next year. AZ 30 will be the Durango Freeway/I-10 Reliever, which follows the original planned route for I-10. AZ 48 was supposed to be the upgraded Fain Rd. around Prescott Valley, but it was never signed. It's now unsigned AZ 89S.
Yet to be numbered are the partially completed Northern Parkway in the west valley, which, like the Loop freeways, is being built under MCDOT control and will be eventually turned over to ADOT once it's finished. My guess is that AZ 50 will be recycled for that road, although nothing official has been said about it, AFAIK.
Quote from: KeithE4Phx on November 26, 2019, 07:18:39 PM
Quote from: Max Rockatansky on November 26, 2019, 04:16:31 PM
AZ 24 is totally out of sequence with the 60-99 two digit highway convention and seems to have been randomly drawn from a hat.
ADOT apparently is assigning two-digit numbers below 60 to new non-Interstate, non-loop freeways. AZ 24 is the Gateway Freeway, which will get a new (temporary) non-freeway segment, with construction starting next year. AZ 30 will be the Durango Freeway/I-10 Reliever, which follows the original planned route for I-10. AZ 48 was supposed to be the upgraded Fain Rd. around Prescott Valley, but it was never signed. It's now unsigned AZ 89S.
Yet to be numbered are the partially completed Northern Parkway in the west valley, which, like the Loop freeways, is being built under MCDOT control and will be eventually turned over to ADOT once it's finished. My guess is that AZ 50 will be recycled for that road, although nothing official has been said about it, AFAIK.
Is Fain Road actually ADOT maintained East of the AZ 89A split? I was always sunder the impression that was county maintained.
Quote from: CNGL-Leudimin on November 26, 2019, 05:22:18 PM
There are two US Routes newer than US 400: US 48 (Corridor H) and US 121 (Schrödinger or Alanland highway, in that it exists and doesn't exist).
As for other unusually numbered US Routes, I'd include US 44 and 46 (too far North), US 59 (too far West), US 33 (nominally North-South but mostly signed East-West), US 220 and former 666 (nominally East-West but signed North-South). US 6 only became an oddball when it was extended all the way to the West coast, its original terminus was Erie, Pennsylvania.
Internationally we have:
- Any freeway numbered A-70 and above in Spain
- A20 in France
- All the Ax(M) motorways in the UK, notably A1(M) and A74(M), as well as A601(M)
- SS 107 bis dir A in Catanzaro, Italy. Italian numbering is really crazy with all those suffixes, but that ramp takes the cake
Isn't the Ax(M) designation for sections of A roads that have been upgraded to motorway standards, but are still considered part of the motorways? You know, like Interstate 41?
Quote from: Max Rockatansky on November 26, 2019, 07:20:20 PM
Quote from: KeithE4Phx on November 26, 2019, 07:18:39 PM
Quote from: Max Rockatansky on November 26, 2019, 04:16:31 PM
AZ 24 is totally out of sequence with the 60-99 two digit highway convention and seems to have been randomly drawn from a hat.
ADOT apparently is assigning two-digit numbers below 60 to new non-Interstate, non-loop freeways. AZ 24 is the Gateway Freeway, which will get a new (temporary) non-freeway segment, with construction starting next year. AZ 30 will be the Durango Freeway/I-10 Reliever, which follows the original planned route for I-10. AZ 48 was supposed to be the upgraded Fain Rd. around Prescott Valley, but it was never signed. It's now unsigned AZ 89S.
Yet to be numbered are the partially completed Northern Parkway in the west valley, which, like the Loop freeways, is being built under MCDOT control and will be eventually turned over to ADOT once it's finished. My guess is that AZ 50 will be recycled for that road, although nothing official has been said about it, AFAIK.
Is Fain Road actually ADOT maintained East of the AZ 89A split? I was always sunder the impression that was county maintained.
If I read my AZDOT milepost map right, as well as the last time I looked at each end on Google Maps, Fain Rd. is ADOT-maintained (it has ADOT-installed mileposts) between AZ 89A and AZ 69, despite the section directly east of 89A being within the city limits of Prescott Valley.
Quote from: KeithE4Phx on November 26, 2019, 07:36:34 PM
Quote from: Max Rockatansky on November 26, 2019, 07:20:20 PM
Quote from: KeithE4Phx on November 26, 2019, 07:18:39 PM
Quote from: Max Rockatansky on November 26, 2019, 04:16:31 PM
AZ 24 is totally out of sequence with the 60-99 two digit highway convention and seems to have been randomly drawn from a hat.
ADOT apparently is assigning two-digit numbers below 60 to new non-Interstate, non-loop freeways. AZ 24 is the Gateway Freeway, which will get a new (temporary) non-freeway segment, with construction starting next year. AZ 30 will be the Durango Freeway/I-10 Reliever, which follows the original planned route for I-10. AZ 48 was supposed to be the upgraded Fain Rd. around Prescott Valley, but it was never signed. It's now unsigned AZ 89S.
Yet to be numbered are the partially completed Northern Parkway in the west valley, which, like the Loop freeways, is being built under MCDOT control and will be eventually turned over to ADOT once it's finished. My guess is that AZ 50 will be recycled for that road, although nothing official has been said about it, AFAIK.
Is Fain Road actually ADOT maintained East of the AZ 89A split? I was always sunder the impression that was county maintained.
If I read my AZDOT milepost map right, as well as the last time I looked at each end on Google Maps, Fain Rd. is ADOT-maintained (it has ADOT-installed mileposts) between AZ 89A and AZ 69, despite the section directly east of 89A being within the city limits of Prescott Valley.
It is in ADOT's official map online with mileage and all:
http://adot.maps.arcgis.com/apps/webappviewer/index.html?id=5b7e6ea8aafd4405a4c6d1d17b1a2fdd
I think that must be relatively new the expressway expansion East of AZ 89A. I could swear that part of Fain Road was county maintained when it was two lanes but has been years since I lived out there. I recall some of the AZ 48 talk I the Arizona Roads website was the only place that had some sort of documentation about it and page hasn't been updated in over a decade.
How did the 4-digits in FL get their numbers anyway? It's not just 9336, there's also an FL 5054 in Melbourne (Sarno Rd), but it's not signed.
Quote from: TheGrassGuy on November 26, 2019, 08:33:00 PM
How did the 4-digits in FL get their numbers anyway? It's not just 9336, there's also an FL 5054 in Melbourne (Sarno Rd), but it's not signed.
FL 997 and 9336 were part of FL 27 which were renumbered to avoid confusion with US 27.
But the numbers are so bizarre. Perhaps they were originally county routes? I know that county routes in FL sometimes go into the 4 digits.
My thoughts on US 425:
Since 425 ends at 65 near Pine Bluff, and intersects 65 again in Clayton, it could be a 3di of 65 (465?) US 65 currently only has one 3di. At Clayton, 65 goes to what is 425's terminus at Natchez, truncating what would be a 65 3di to the current endpoint of 65. That way, the route won't be an AASHTO violation.
Quote from: Max Rockatansky on November 26, 2019, 08:01:29 PM
It is in ADOT's official map online with mileage and all:
http://adot.maps.arcgis.com/apps/webappviewer/index.html?id=5b7e6ea8aafd4405a4c6d1d17b1a2fdd
I think that must be relatively new the expressway expansion East of AZ 89A. I could swear that part of Fain Road was county maintained when it was two lanes but has been years since I lived out there. I recall some of the AZ 48 talk I the Arizona Roads website was the only place that had some sort of documentation about it and page hasn't been updated in over a decade.
Interesting that they still mark the entire length of AZ 87 through Chandler and Mesa, but there are no traces of ADOT markings anywhere along that segment, other than the ramps and overpass at US 60.
They also mark off the yet-to-be-built section of AZ 24 between Ellsworth Rd. and Ironwood Dr., while still keeping the old AZ 153 on the map. It had been turned over to the City of Phoenix in 2008 and the number was discontinued. They also do not show the new construction of the South Mountain Freeway (Loop 202), some of which has recently opened.
Quote from: CNGL-Leudimin on November 26, 2019, 05:22:18 PM
US 33 (nominally North-South but mostly signed East-West)
Not to mention being entirely east of US 31.
Quote from: MNHighwayMan on November 26, 2019, 05:36:28 PM
MN-197 in Bemidji. Not related to MN-97, nor is it the route's legislative route number. Just an arbitrary high number (lots of available lower numbers) for a route that should really be a business route of either US-2 or US-71.
Also MN 610, which was numbered as a "3dus" of US 10, but with an insanely high number.
Quote from: KeithE4Phx on November 26, 2019, 07:07:08 PM
Quote from: cabiness42 on November 26, 2019, 04:11:19 PM
IN 152. Not that 152 is such an unusual number for a route, but in Indiana, 3di routes are based on a parent route that is either connecting or parallel, and US 52 doesn't come anywhere near 152. Based on the state's numbering conventions, it should be an x41.
IN 152 is part of the former US 152, which was the original Lafayette-to-Hammond route in the 1930s (1935-38). It became IN 152 in 1938. Most of that old route is now US 231. The current IN 152 runs from the Borman Expressway (I-80 & 94/US 6 & 41) to US 20, about 2.5 miles.
Thanks, I wasn't aware of a former US 152, that makes the route number make much more sense.
Quote from: Verlanka on November 27, 2019, 05:18:21 AM
Quote from: CNGL-Leudimin on November 26, 2019, 05:22:18 PM
US 33 (nominally North-South but mostly signed East-West)
Not to mention being entirely east of US 31.
Not quite entirely. The original US-33 was co-signed with US-31 from Indiana into St. Joe, MI - so that portion wasn't "entirely" east of US-31. Then later, US-33 was extended to the northwest, so the extension was fully west of US-31.
Now that the "northern" terminus is in Elkhart, your "entirely east" statement is correct.
That said, I wonder why this diagonal (and US-35 for that matter) wasn't given an even number like US-52 was. Maybe because the logical numbers, 44 and 46, had already been used up in non-standard places?
AL 605. Where the heck did that number come from? Alabama doesn't typically do state route numbers over ~300 (besides 759, an extension of I-759).
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*Hunterdon CR 751
*Middlesex CR 807
These two don't exist anymore. HuntCo 751 may have just been a typo by NJDOT, the county always considered it CR 621 and the SLDs were recently corrected to that number. CR 807 was never signed, is now just (unsigned) CR 632. There was a reference to a proposed Route 807 freeway in 1973 NYT article (https://www.nytimes.com/1973/11/04/archives/highway-programs-showing-progress-registrations-rise.html) running through Essex, Union, and Somerset so that, if it was built, would qualify in this thread.
Wisconsin 213 near Beloit has a strange number. I've never seen a successful attempt to explain the number there. Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
I-73 and I-74 in NC. The former is entirely east of I-77, and the latter will never connect to the real one in Cincinnati.
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin 213 near Beloit has a strange number. I've never seen a successful attempt to explain the number there. Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
That was originally part of highway 13, which used to go south from Wisconsin Dells to Madison and ultimately to Beloit.
Most of the three-digit route numbers on the West Virginia primary system.
Quote from: Eth on November 27, 2019, 08:40:48 AM
AL 605. Where the heck did that number come from? Alabama doesn't typically do state route numbers over ~300 (besides 759, an extension of I-759).
There was a short-lived AL 604 in Auburn; I guess someone forgot the memo that ALDOT had just started into the 300s, and a lot of even 2xx numbers hadn't been used yet.
Quote from: Henry on November 27, 2019, 09:28:52 AM
I-73 and I-74 in NC. The former is entirely east of I-77, and the latter will never connect to the real one in Cincinnati.
No, those aren't as egregious as interstates like I-99 because they have been INTENDED to conform to the regular interstate numbering grid according to the original plan, even if the original plans are very unlikely to take place in the near future.
Quote from: Mr. Matté on November 27, 2019, 08:54:06 AM
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*Hunterdon CR 751
*Middlesex CR 807
These two don't exist anymore. HuntCo 751 may have just been a typo by NJDOT, the county always considered it CR 621 and the SLDs were recently corrected to that number. CR 807 was never signed, is now just (unsigned) CR 632. There was a reference to a proposed Route 807 freeway in 1973 NYT article (https://www.nytimes.com/1973/11/04/archives/highway-programs-showing-progress-registrations-rise.html) running through Essex, Union, and Somerset so that, if it was built, would qualify in this thread.
https://en.wikipedia.org/wiki/List_of_county_routes_in_Middlesex_County,_New_Jersey
Woah. You're right. But it seems that Middlesex County now has unsigned 4-digits?!!
Florida also used to have a 9823
Utah 900 and 901 are unusual numbers for two unusual routes.
Quote from: TheGrassGuy on November 27, 2019, 11:05:04 AM
Quote from: Mr. Matté on November 27, 2019, 08:54:06 AM
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*Hunterdon CR 751
*Middlesex CR 807
These two don't exist anymore. HuntCo 751 may have just been a typo by NJDOT, the county always considered it CR 621 and the SLDs were recently corrected to that number. CR 807 was never signed, is now just (unsigned) CR 632. There was a reference to a proposed Route 807 freeway in 1973 NYT article (https://www.nytimes.com/1973/11/04/archives/highway-programs-showing-progress-registrations-rise.html) running through Essex, Union, and Somerset so that, if it was built, would qualify in this thread.
https://en.wikipedia.org/wiki/List_of_county_routes_in_Middlesex_County,_New_Jersey
Woah. You're right. But it seems that Middlesex County now has unsigned 4-digits?!!
I know I'm right because I was the one who made the updates there. :)
Quote from: US 89 on November 28, 2019, 12:29:17 PM
Utah 900 and 901 are unusual numbers for two unusual routes.
Can they actually be driven? I know both were unimproved BLM roads that were added to block a nuclear waste disposal rail line
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
You're forgetting WI-243, which was numbered to be the same as its Minnesota counterpart across the St. Croix.
Hawaii 8930, the highest signed route number in the state. Hawaii doesn't have nearly that many routes, but the high number is from its 4-digit route number (for newer urban secondary routes), on Oahu for which the 6xxx-9xxx number block is reserved.
Quote from: TheGrassGuy on November 26, 2019, 04:38:29 PM
Quote from: kphoger on November 26, 2019, 04:30:35 PM
Quote from: TheGrassGuy on November 26, 2019, 04:06:21 PM
*US Routes ... 400, 412, and 425
Please see below (although the veracity of some of this info has been called into question on these boards, it has not actually been debunked).
Quote from: formulanone on December 22, 2017, 07:07:28 AM
US 412 is a NHS/ISTEA High Priority Corridor, and was designated in 1982 (see https://www.aaroads.com/high-priority/corr08.html ). It might become a future Interstate. US 425 was added to the US route system in 1989; this is the preferred corridor for any future extension of I-530 to I-69. Part of US 425 is included in the I-69 corridor (see 6.4 ). US 371 was added as a branch route of US 71 in 1995 in LA and AR. US 400 is also a NHS/ISTEA High Priority Corridor, added to the US system in 1996, the newest US route (see https://www.aaroads.com/high-priority/corr03.html ). The number was picked by Kansas DOT out of a list of available numbers, and agreed to by Missouri and Colorado. US 400 is also planned as a future extension of I-66.
But why those numeros? Why not US 402, US 414, or US 426?
Apparently the decidedly arbitrary "400" series of routes was supposed to divide that centennial by 8, anchored by 400 itself. Thus the next two numbers would be 412 and 425. And the assessment of what corridors got those particular numbers seems to be essentially correct -- all three are either connected to legislated high priority corridors (400/HPC 3; 412/HPC 8) or potential limited-access routes, if only partially (425/I-530 as part of the HPC 18 multi-route compendium). Any number with a decimal point (e.g. 412.5) is simply rounded down to the whole. So the next one to be designated should be 437 (.5!). But since HPC's intended to be future Interstates are more often than not, at least with the most recent additions, being presently supplied with a specific number in their original authorizing legislation (a process used for 5 of the last 6 new trunk Interstates to be designated), the spate of 400's as purported "placeholders" may well be behind us.
If unsigned routes count, Westchester County in New York has a few four-digit county route numbers, despite all the others being below 400.
WI-243, which is a glorified bridge over the St Croix River at Osceola. There's no 43 or 143 nearby.
The state of Maryland has a system for its lowest-numbered state route range, which is 2 through 37. The lowest of these numbers, 2 through 6, are mostly contained within the southern part of the state; more specifically, south of Washington, DC and Annapolis. It goes on through the Eastern Shore, the Baltimore metro area, and central and western Maryland. The Eastern Shore's number range is 12 through 21, and Western Maryland is supposed to contain routes 33 through 37. But several decades ago, routes 17 and 33 were swapped. So, MD-17 is in Frederick and Washington counties in the western part of the state, and MD-33 is in Talbot County on the Eastern Shore. They should conventionally be the other way around.
Made me think when I lived in Wyoming my license plate was "49Y". That sure is not a lot of combinations :P
For a year or two, the Merritt Parkway in Connecticut was unsigned state road 999. That would have been cool to keep and sign.
Kentucky has 6000-series routes, which are frontage roads or otherwise unimportant state-maintained routes (such as some bridges on county routes over parkways or interstates). Most aren't signed, although some of them in the far western part of the state (Districts 1 and 2) are posted.
Makes you wonder if Kentucky doesn't anticipate its four-digit routes reaching 4000 or 5000. We're already up into the 3600s.
And then the parkways are unsigned 9000-series routes. The Mountain Parkway had a few identity crises when the tolls were removed from it. It was originally numbered KY 114 (which would have been logical, since the route between Salyersville and Prestonsburg was known as the Mountain Parkway Extension and was co-signed as KY 114 and the Mountain Parkway for years in Floyd County.) Then it became KY 402. Neither number was posted, except for a brief time back in the late 1980s when contractors installed KY 402 signs at Exit 33 when the toll booth was removed there and the interchange was reconfigured. Wish I had gotten photos, but alas, I didn't.
Quote from: hbelkins on November 30, 2019, 03:29:41 PM
Kentucky has 6000-series routes, which are frontage roads or otherwise unimportant state-maintained routes (such as some bridges on county routes over parkways or interstates). Most aren't signed, although some of them in the far western part of the state (Districts 1 and 2) are posted.
Makes you wonder if Kentucky doesn't anticipate its four-digit routes reaching 4000 or 5000. We're already up into the 3600s.
And then the parkways are unsigned 9000-series routes. The Mountain Parkway had a few identity crises when the tolls were removed from it. It was originally numbered KY 114 (which would have been logical, since the route between Salyersville and Prestonsburg was known as the Mountain Parkway Extension and was co-signed as KY 114 and the Mountain Parkway for years in Floyd County.) Then it became KY 402. Neither number was posted, except for a brief time back in the late 1980s when contractors installed KY 402 signs at Exit 33 when the toll booth was removed there and the interchange was reconfigured. Wish I had gotten photos, but alas, I didn't.
Kentucky has a crap ton of 4-digits. Originally, the system was neat and tidy with only 100 routes, organized like the interstate system. But more and more new routes were added to the state highway system, and all numbers between 100 and 6000 are in sequential order.
OSR in Texas comes to mind.
Quote from: ce929wax on November 30, 2019, 09:44:46 PM
OSR in Texas comes to mind.
Technically not a numbered route. :)
Oklahoma routes are wacky enough that it's hard to point to individual routes as "unusually numbered". However, most of the ones that can be are lettered spur routes, which quite logically are children of one- or two-digit state or US routes, with a letter suffix to identify them.
- 251A is probably the wackiest, because there is not and never has been a 251. However, there was once an entire series of 251 routes in the area that it serves, so at least it sort of had a reason to exist.
- 40A is second-wackiest, because it doesn't connect to I-40, the only highway 40 in the state (and none of the interstates have lettered spurs anyway). However, it is a spur off US-177, which was SH-40 before it was a US highway.
- 77 has a few wacky letters that don't go in order, such as 77H (the H is probably after the defunct town of Hollywood) and 77S (scenic, maybe?) 412 has 412P, the P probably meaning "port".
Quote from: MNHighwayMan on November 30, 2019, 09:47:45 PM
Quote from: ce929wax on November 30, 2019, 09:44:46 PM
OSR in Texas comes to mind.
Technically not a numbered route. :)
Technically, but it is a route, and it is unusually designated.
Quote from: Scott5114 on November 30, 2019, 10:45:10 PM
Oklahoma routes are wacky enough that it's hard to point to individual routes as "unusually numbered". However, most of the ones that can be are lettered spur routes, which quite logically are children of one- or two-digit state or US routes, with a letter suffix to identify them.
- 251A is probably the wackiest, because there is not and never has been a 251. However, there was once an entire series of 251 routes in the area that it serves, so at least it sort of had a reason to exist.
- 40A is second-wackiest, because it doesn't connect to I-40, the only highway 40 in the state (and none of the interstates have lettered spurs anyway). However, it is a spur off US-177, which was SH-40 before it was a US highway.
- 77 has a few wacky letters that don't go in order, such as 77H (the H is probably after the defunct town of Hollywood) and 77S (scenic, maybe?) 412 has 412P, the P probably meaning "port".
Not a route number, but the NB-only exit on the Garden State Parkway for NJ-19 was Numbered Exit 155P. P for Paterson, I presume? Thank goodness they renumbered Exit 155P and Exit 155 to plain old Exits 155A-B recently.
I'm surprised no one's mentioned New Mexico State Road 6563 (https://en.wikipedia.org/wiki/New_Mexico_State_Road_6563) yet. The highway connects to the Sacramento Peak National Solar Observatory, and it was named for the wavelength of the Hydrogen-alpha spectral line (6563 Ã...) used by the scientists to study the the solar chromosphere and to locate solar flares on the Sun. There's only two other extant four-digit highways in New Mexico, one of which is unsigned. Another highway, NM 2001, apparently named after 2001: A Space Odyssey may be decommissioned.
Quote from: bulldog1979 on December 01, 2019, 01:55:07 PM
I'm surprised no one's mentioned New Mexico State Road 6563 (https://en.wikipedia.org/wiki/New_Mexico_State_Road_6563) yet. The highway connects to the Sacramento Peak National Solar Observatory, and it was named for the wavelength of the Hydrogen-alpha spectral line (6563 Ã...) used by the scientists to study the the solar chromosphere and to locate solar flares on the Sun. There's only two other extant four-digit highways in New Mexico, one of which is unsigned. Another highway, NM 2001, apparently named after 2001: A Space Odyssey may be decommissioned.
2001 was still there as of 2012 when I last visited the Space Museum in Alamogordo.
I-238 in Hayward, CA since its the most notable 3di not connected for I-38. Also I-238 is an extension of CA-238. However there were rumors for some time that I-238 was going to connect to I-380 for the Southern Crossing but that never came into play though.
Quote from: bing101 on December 01, 2019, 02:48:21 PM
I-238 in Hayward, CA since its the most notable 3di not connected for I-38. Also I-238 is an extension of CA-238. However there were rumors for some time that I-238 was going to connect to I-380 for the Southern Crossing but that never came into play though.
I find it preferably just to call it CA 238...it's not like the State doesn't recognize them as the same route anyways. I'm kind of surprised nobody has brought up CA 14U or former CA 86S.
Quote from: bing101 on December 01, 2019, 02:48:21 PM
I-238 in Hayward, CA since its the most notable 3di not connected for I-38. Also I-238 is an extension of CA-238. However there were rumors for some time that I-238 was going to connect to I-380 for the Southern Crossing but that never came into play though.
Already in the OP.
Quote from: TheHighwayMan394 on November 27, 2019, 07:05:15 AM
Also MN 610, which was numbered as a "3dus" of US 10, but with an insanely high number.
Take out the final RIROs on US-10 and just make the 610/10 corridor I-894. :-D
Speaking of 4-digit routes, North Dakota has 2: 1804 that runs along the north/east side of the Missouri River, and 1806 that runs along the south/west side of the river. Both are named for the years that the Lewis and Clark expedition came through the area.
Quote from: FrCorySticha on December 02, 2019, 10:08:55 AM
Speaking of 4-digit routes, North Dakota has 2: 1804 that runs along the north/east side of the Missouri River, and 1806 that runs along the south/west side of the river. Both are named for the years that the Lewis and Clark expedition came through the area.
At least ND and NM have logical and intuitive reasons for the numbers of these routes, whereas, say, FL doesn't.
Quote from: MNHighwayMan on November 30, 2019, 12:30:51 AM
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
You're forgetting WI-243, which was numbered to be the same as its Minnesota counterpart across the St. Croix.
Quote from: thspfc on November 30, 2019, 08:40:31 AM
WI-243, which is a glorified bridge over the St Croix River at Osceola. There's no 43 or 143 nearby.
Should have read the thread.
Quote from: kphoger on December 02, 2019, 02:13:11 PM
Quote from: MNHighwayMan on November 30, 2019, 12:30:51 AM
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
You're forgetting WI-243, which was numbered to be the same as its Minnesota counterpart across the St. Croix.
Quote from: thspfc on November 30, 2019, 08:40:31 AM
WI-243, which is a glorified bridge over the St Croix River at Osceola. There's no 43 or 143 nearby.
Should have read the thread.
So basically like NJ and NY-440? NJ 440 is the only NJ state route in the 400s.
Quote from: TheGrassGuy on December 02, 2019, 06:13:55 PM
Quote from: kphoger on December 02, 2019, 02:13:11 PM
Quote from: MNHighwayMan on November 30, 2019, 12:30:51 AM
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
You're forgetting WI-243, which was numbered to be the same as its Minnesota counterpart across the St. Croix.
Quote from: thspfc on November 30, 2019, 08:40:31 AM
WI-243, which is a glorified bridge over the St Croix River at Osceola. There's no 43 or 143 nearby.
Should have read the thread.
So basically like NJ and NY-440? NJ 440 is the only NJ state route in the 400s.
There's an NJ Route 413, though signage is a little sparse:
(https://live.staticflickr.com/65535/48170184696_bbce2ba67d_b.jpg) (https://flic.kr/p/2goCMFN)
NJ 439:
(https://live.staticflickr.com/4675/38872227045_9376f9edb3_b.jpg) (https://flic.kr/p/22e1jP8)
NJ 495, the I-495 that wasn't really never-was isn't but might as well be:
(https://live.staticflickr.com/4674/25254133007_ced0cb8eb2_b.jpg) (https://flic.kr/p/EtC2Uk)
K-383 is the only K-route with a number 300 or higher. On the other hand, it was once U.S. 383, so they just simply changed what kind of highway it was.
Quote from: apeman33 on December 03, 2019, 02:57:40 AM
K-383 is the only K-route with a number 300 or higher. On the other hand, it was once U.S. 383, so they just simply changed what kind of highway it was.
I thought I saw a K-368 sign for Pomona State Park...maybe an error sign?
Quote from: FrCorySticha on December 02, 2019, 10:08:55 AM
Speaking of 4-digit routes, North Dakota has 2: 1804 that runs along the north/east side of the Missouri River, and 1806 that runs along the south/west side of the river. Both are named for the years that the Lewis and Clark expedition came through the area.
South Dakota has the same highways 1804 and 1806. They connect end to end on either side of the Missouri River.
I have a few more for South Dakota:
SD 244. Used to be part of SD 87, never ran anywhere near its parent SD 44. They could have made it a western extension of SD 40 if you run a short concurrency with US 16A through Keystone.
Former SD 435 ran between I-90 and the front gate of Ellsworth AFB, but it was never signed, and it was removed when the interchange was relocated.
I would include CR 1416 in Box Elder, but that number, along with its name Old Highway 14-16, indicates its past as the US 14/16 expressway that predates the Interstate system.
Quote from: formulanone on December 03, 2019, 06:51:28 AM
Quote from: apeman33 on December 03, 2019, 02:57:40 AM
K-383 is the only K-route with a number 300 or higher. On the other hand, it was once U.S. 383, so they just simply changed what kind of highway it was.
I thought I saw a K-368 sign for Pomona State Park...maybe an error sign?
Nope, you're correct. There are three current state highways in Kansas with numbers over 300.
K-368 near Pomona State Park (https://goo.gl/maps/gzFC8wycBkG37fgW9)
K-360 near Winfield (https://goo.gl/maps/4X1cWNsA7MUauVb57)
I never could figure out why Indiana SR 234 got its number in the west-central part of the state, until I learned that US 136 in Indiana used to be SR 34.
Closest thing to "unusual" in Washington would be WA-410 I'd say, which just kept its number when US-410 was deleted. It would be numbered 16 in the grid, though that was already taken. This also explains the 16x numbered routes that branch off of it (Washington does state route auxiliaries by adding numbers to the end instead of the beginning). This pattern of numbering state route branches of US highways based on where it is in the state grid also extends to US 97 with the 15x routes (though there is also 970 and 971) and to US 395 with the 29x routes (again, there is a 397 as well, though it isn't really at the position of a theoretical WA-29 in that location anyway).
Quote from: formulanone on December 02, 2019, 07:06:04 PM
Quote from: TheGrassGuy on December 02, 2019, 06:13:55 PM
Quote from: kphoger on December 02, 2019, 02:13:11 PM
Quote from: MNHighwayMan on November 30, 2019, 12:30:51 AM
Quote from: paulthemapguy on November 27, 2019, 09:26:04 AM
Wisconsin doesn't have state route numbers over 200 unless they're branches of a two-digit route (310's a branch of 10, 241's a branch of 41, etc.).
You're forgetting WI-243, which was numbered to be the same as its Minnesota counterpart across the St. Croix.
Quote from: thspfc on November 30, 2019, 08:40:31 AM
WI-243, which is a glorified bridge over the St Croix River at Osceola. There's no 43 or 143 nearby.
Should have read the thread.
So basically like NJ and NY-440? NJ 440 is the only NJ state route in the 400s.
There's an NJ Route 413, though signage is a little sparse:
(https://live.staticflickr.com/65535/48170184696_bbce2ba67d_b.jpg) (https://flic.kr/p/2goCMFN)
NJ 439:
(https://live.staticflickr.com/4675/38872227045_9376f9edb3_b.jpg) (https://flic.kr/p/22e1jP8)
NJ 495, the I-495 that wasn't really never-was isn't but might as well be:
(https://live.staticflickr.com/4674/25254133007_ced0cb8eb2_b.jpg) (https://flic.kr/p/EtC2Uk)
NJ 413 connects with PA 413, NJ 439 connected with a now-decomissioned NY 439 that was on Staten Island, and NJ 495 was originally intended to be I-495 (in addition to NY 495 on the other side of the tunnel). Perfectly logical numbers.
Quote from: TheGrassGuy on December 07, 2019, 08:44:04 AM
NJ 413 connects with PA 413, NJ 439 connected with a now-decomissioned NY 439 that was on Staten Island, and NJ 495 was originally intended to be I-495 (in addition to NY 495 on the other side of the tunnel). Perfectly logical numbers.
I mean, in context, those numbers are logical, but they are otherwise unusual. I was about to say the same thing about WI-243, but in context of the Wisconsin state system in general, it is a pretty weird/unusual number, even though it
does have a logical explanation.
AZ 143 really doesn't conform to any preexisting numbering convention in Arizona. Come to think of it AZ 153 was really much of the same when it was still a state Highway. AZ 504 was a oddball number but a continuation of a highway from New Mexico.
OK-325 is an example of a route that has itself stayed the same, but gotten more unusually numbered over time. It started out numbered as a continuation of NM-325. Then New Mexico renumbered the route on the other side of the state line as NM-456. Whoops. It remained as the only Oklahoma state highway in the 3xx range until 2014, when Oklahoma assigned 351 and 364 to a couple of turnpikes in the Tulsa area, following up with 344 in 2018.
So now there's a route at the end of the Oklahoma panhandle that's numbered like a turnpike for no apparent reason unless you dig deep into road history. They could always make it OK-456 and start the cycle over again, I guess...
AZ 347 always seemed to me like a random number. This old link has an explanation:
https://arizonaroads.com/arizona/az347.html
Quote from: Roadwarriors79 on December 07, 2019, 12:39:53 PM
AZ 347 always seemed to me like a random number. This old link has an explanation:
https://arizonaroads.com/arizona/az347.html
Completely forgot about AZ 238. I kind of wonder if a lot of the more recent numbers had something of a random draw to them?
Chances are, if you encounter an unusually numbered state highway that runs close or intersects a state border, the road on the other side of the border likely has something to do with it.
Quote from: TheGrassGuy on December 07, 2019, 01:49:41 PM
Chances are, if you encounter an unusually numbered state highway that runs close or intersects a state border, the road on the other side of the border likely has something to do with it.
No shit, Sherlock.
Quote from: formulanone on December 03, 2019, 06:51:28 AM
Quote from: apeman33 on December 03, 2019, 02:57:40 AM
K-383 is the only K-route with a number 300 or higher. On the other hand, it was once U.S. 383, so they just simply changed what kind of highway it was.
I thought I saw a K-368 sign for Pomona State Park...maybe an error sign?
No...you're right. I forgot about K-368 and I've passed by it several times.
About NJ-400+ routes...
The GSP is Route 444 if I recall...
Quote from: ce929wax on November 30, 2019, 09:44:46 PM
OSR in Texas comes to mind.
There's also Nasa Road 1, Beltway 8, and Loop 1604.
Quote from: Some one on December 09, 2019, 08:53:14 PM
Quote from: ce929wax on November 30, 2019, 09:44:46 PM
OSR in Texas comes to mind.
There's also Nasa Road 1, Beltway 8, and SH 1604.
Add PA 1502 (Wurzbach Parkway) to that list as well.
Texas doesn't have a numbering system, so unusual numbers would be those that are well above the consecutive numbers. The FM system has high numbers, and is the source of some of the high numbers in other systems. State highways go up to 365, and then there are 495, 550, and 824. SH 824 was renumbered to 24. The minute order gives no information as to why that number was selected. It was not near FM 824. SH 495 was previously FM 495. SH 550 is a weird one. According to the designation files, it was designated in Minute Order 21014, which is the 1945 minute order that designated the Interstate Highway System. It didn't designate any highways, it just describes a system to be proposed to the Public Roads Administration. That's my analysis, but according to the designation files, it designated SH 550 without mentioning it. It was possibly going to be an Interstate along the US 80 Interstate highway in Fort Worth and Dallas.
There are some high loop and spur numbers. Spur 1570 is an extension of FM 1570. Loop 1604 is also a result of FM conversion. Spur 1966 is unexplained.
Quote from: wxfree on December 09, 2019, 11:26:03 PMSpur 1966 is unexplained.
https://en.wikipedia.org/wiki/Texas_State_Highway_Spur_1966
It's the year 1966.
Quote from: Some one on December 09, 2019, 08:53:14 PM
SH 1604
This does not exist. "SH" means "State Highway".
1604 is a "State Highway Loop", which is abbreviated "SL".
As
wxfree explained, its number is the result of mileage being transferred from FM 1604.
Quote from: Texas Department of Transportation, Transportation Planning and Programming Division
Highway Designation File
STATE HIGHWAY LOOP NO. 1604
Minute Order 072928, dated 06/30/1977; Adm. Ltr. 008-1977, dated 08/15/1977
San Antonio Loop - From IH 10, east of San Antonio, circumferentially around San Antonio to the point of beginning. (Bexar County) New designation; mileage transferred from FM 1604.
http://www.dot.state.tx.us/tpp/hwy/sl/sl1604.htm
Quote from: kphoger on December 10, 2019, 10:57:45 AM
Quote from: Some one on December 09, 2019, 08:53:14 PM
SH 1604
This does not exist. "SH" means "State Highway".
1604 is a "State Highway Loop", which is abbreviated "SL".
As wxfree explained, its number is the result of mileage being transferred from FM 1604.
Quote from: Texas Department of Transportation, Transportation Planning and Programming Division
Highway Designation File
STATE HIGHWAY LOOP NO. 1604
Minute Order 072928, dated 06/30/1977; Adm. Ltr. 008-1977, dated 08/15/1977
San Antonio Loop - From IH 10, east of San Antonio, circumferentially around San Antonio to the point of beginning. (Bexar County) New designation; mileage transferred from FM 1604.
http://www.dot.state.tx.us/tpp/hwy/sl/sl1604.htm
Fixed
Quote from: DJ Particle on December 09, 2019, 01:48:49 AM
About NJ-400+ routes...
The GSP is Route 444 if I recall...
PIP = NJ 445
ACE = NJ 446
NJTP = NJ 700
Quote from: epzik8 on November 30, 2019, 11:03:05 AM
The state of Maryland has a system for its lowest-numbered state route range, which is 2 through 37. The lowest of these numbers, 2 through 6, are mostly contained within the southern part of the state; more specifically, south of Washington, DC and Annapolis. It goes on through the Eastern Shore, the Baltimore metro area, and central and western Maryland. The Eastern Shore's number range is 12 through 21, and Western Maryland is supposed to contain routes 33 through 37. But several decades ago, routes 17 and 33 were swapped. So, MD-17 is in Frederick and Washington counties in the western part of the state, and MD-33 is in Talbot County on the Eastern Shore. They should conventionally be the other way around.
Maryland had a system for all route numbers all the way up to MD 379, but that system had a few oddities in it right from the beginning, especially for the low-digit numbers.
MD 7 was left unassigned until it was used for the segments of US 40 northeast of Baltimore after Pulaski Highway was built
MD 8 was left unassigned for many years until it was assigned to the Kent Island segment of MD 33
MD 9 was originally assigned to a short segment connecting to WV 9 in Allegany County, and then dropped in 1970 and left unassigned
MD 10 was left unassigned until the construction of its current route in Anne Arundel County in the 1970s
In addition, the Maryland State Roads Commission did not duplicate any of the US highway designations that existed in the state at the time, so there has never been (AFAIK) a highway deliberately marked MD 1, 11, 13, 15, 40, 50, 113, 219, 220, 240, 340, or 522.
Quote from: TheOneKEA on December 11, 2019, 07:52:52 PM
Maryland had a system for all route numbers all the way up to MD 379, but that system had a few oddities in it right from the beginning, especially for the low-digit numbers.
MD 7 was left unassigned until it was used for the segments of US 40 northeast of Baltimore after Pulaski Highway was built
MD 8 was left unassigned for many years until it was assigned to the Kent Island segment of MD 33
MD 9 was originally assigned to a short segment connecting to WV 9 in Allegany County, and then dropped in 1970 and left unassigned
MD 10 was left unassigned until the construction of its current route in Anne Arundel County in the 1970s
In addition, the Maryland State Roads Commission did not duplicate any of the US highway designations that existed in the state at the time, so there has never been (AFAIK) a highway deliberately marked MD 1, 11, 13, 15, 40, 50, 113, 219, 220, 240, 340, or 522.
There was speculation (not sure if any proof exists?) that MD 9 would be the new designation for US 140 after its decommisioning. Instead, it became MD 140 and MD 97.
The "no duplication of US and state roads" ended after the portion of US 222 between Conowingo and Perryville was turned back to the state, becoming MD 222. The portion of US 222 north of Conowingo was unaffected.
Quote from: dlsterner on December 11, 2019, 10:43:07 PM
Quote from: TheOneKEA on December 11, 2019, 07:52:52 PM
Maryland had a system for all route numbers all the way up to MD 379, but that system had a few oddities in it right from the beginning, especially for the low-digit numbers.
MD 7 was left unassigned until it was used for the segments of US 40 northeast of Baltimore after Pulaski Highway was built
MD 8 was left unassigned for many years until it was assigned to the Kent Island segment of MD 33
MD 9 was originally assigned to a short segment connecting to WV 9 in Allegany County, and then dropped in 1970 and left unassigned
MD 10 was left unassigned until the construction of its current route in Anne Arundel County in the 1970s
In addition, the Maryland State Roads Commission did not duplicate any of the US highway designations that existed in the state at the time, so there has never been (AFAIK) a highway deliberately marked MD 1, 11, 13, 15, 40, 50, 113, 219, 220, 240, 340, or 522.
There was speculation (not sure if any proof exists?) that MD 9 would be the new designation for US 140 after its decommisioning. Instead, it became MD 140 and MD 97.
The "no duplication of US and state roads" ended after the portion of US 222 between Conowingo and Perryville was turned back to the state, becoming MD 222. The portion of US 222 north of Conowingo was unaffected.
Is that the only duplicate in MD, or are there others?
Quote from: TheGrassGuy on December 12, 2019, 07:21:59 AM
Quote from: dlsterner on December 11, 2019, 10:43:07 PM
Quote from: TheOneKEA on December 11, 2019, 07:52:52 PM
Maryland had a system for all route numbers all the way up to MD 379, but that system had a few oddities in it right from the beginning, especially for the low-digit numbers.
MD 7 was left unassigned until it was used for the segments of US 40 northeast of Baltimore after Pulaski Highway was built
MD 8 was left unassigned for many years until it was assigned to the Kent Island segment of MD 33
MD 9 was originally assigned to a short segment connecting to WV 9 in Allegany County, and then dropped in 1970 and left unassigned
MD 10 was left unassigned until the construction of its current route in Anne Arundel County in the 1970s
In addition, the Maryland State Roads Commission did not duplicate any of the US highway designations that existed in the state at the time, so there has never been (AFAIK) a highway deliberately marked MD 1, 11, 13, 15, 40, 50, 113, 219, 220, 240, 340, or 522.
There was speculation (not sure if any proof exists?) that MD 9 would be the new designation for US 140 after its decommisioning. Instead, it became MD 140 and MD 97.
The "no duplication of US and state roads" ended after the portion of US 222 between Conowingo and Perryville was turned back to the state, becoming MD 222. The portion of US 222 north of Conowingo was unaffected.
Is that the only duplicate in MD, or are there others?
To the best of my knowledge, as far as US vs MD routes are concerned. Although the MD Roads website http://www.mdroads.com/routes/200-219.html (http://www.mdroads.com/routes/200-219.html) suggests an unsigned MD 219 near US 219.
Maryland has no qualms about duplicates between state routes and interstates, however. Most are separated by enough distance and don't cause confusion. On the other hand, there is a sign on westbound I-70 reminding travelers heading to I-68 to
not take MD 68 by mistake.
US101, the original 3d, 2dh.
DE-141 and 202. Three digit routes in Delaware are always ones that connect to a same-numbered route in another state, or used to connect to one. DE-202 is an old alignment of US 202 and is the only route in Delaware to be numbered like that. Apparently 141 was numbered that way because it was a former bypass of DE-41, which makes it odder since all other state route bypasses have always been signed Alternate DE-xx.
Quote from: Perfxion on December 13, 2019, 02:54:20 PM
US101, the original 3d, 2dh.
But it's really not all that weird in the context that it was still an X1 Route to denote that it was a major north/south US Route. Had it been US 99 the whole concept of the X1 Routes would have been mute.
Quote from: wxfree on December 09, 2019, 11:26:03 PM
Texas doesn't have a numbering system, so unusual numbers would be those that are well above the consecutive numbers. The FM system has high numbers, and is the source of some of the high numbers in other systems. State highways go up to 365, and then there are 495, 550, and 824. SH 824 was renumbered to 24. The minute order gives no information as to why that number was selected. It was not near FM 824. SH 495 was previously FM 495. SH 550 is a weird one. According to the designation files, it was designated in Minute Order 21014, which is the 1945 minute order that designated the Interstate Highway System. It didn't designate any highways, it just describes a system to be proposed to the Public Roads Administration. That's my analysis, but according to the designation files, it designated SH 550 without mentioning it. It was possibly going to be an Interstate along the US 80 Interstate highway in Fort Worth and Dallas.
There are some high loop and spur numbers. Spur 1570 is an extension of FM 1570. Loop 1604 is also a result of FM conversion. Spur 1966 is unexplained.
I've never understood why TxDOT made the connection between FM 1570 and US 380 a spur. It should all be FM 1570. It's the same road; it even has the same number!
Quote from: Road Hog on December 13, 2019, 09:45:45 PM
I've never understood why TxDOT made the connection between FM 1570 and US 380 a spur. It should all be FM 1570. It's the same road; it even has the same number!
Is there a fundamental difference between FM highways and State Spur highways? Are they funded differently, maintained differently, anything like that?
Quote from: kphoger on December 10, 2019, 10:57:45 AM
Quote from: Some one on December 09, 2019, 08:53:14 PM
SH 1604
This does not exist. "SH" means "State Highway".
1604 is a "State Highway Loop", which is abbreviated "SL".
When I was there locals called it "Loop 1604". I thought that was kind of cool, because you would never get that if it had an interstate shield.
The "S" spur routes came to mind for Arizona. Normally they aren't signed like AZ 89AS on Fain Road but some like AZ 95S over Parker Dam are (or were, it's been years). Arizona also has unsigned "X" routes line US 60X for Highways that haven't been fully relinquished from ADOT inventory.
Arizona also had SR 89L, which was basically a business loop off US 89 in Page and was the only route to ever get an L suffix. Apparently the loops in Phoenix aren’t officially considered Arizona State Loop Routes.
Quote from: US 89 on December 20, 2019, 12:54:01 AM
Arizona also had SR 89L, which was basically a business loop off US 89 in Page and was the only route to ever get an L suffix. Apparently the loops in Phoenix aren't officially considered Arizona State Loop Routes.
Fortunately the internet has preserved the field signage:
https://www.arizonaroads.com/arizona/az89L.html