Route numbers that don't make sense

[fillup420]

Both termini of US 158 are at US 64. It should be US 164.

[ilpt4u]

I understand it isn't because the route and designation was extended/added to a previous, shorter route, but shouldn't I-376 in Western PA really be an (even)76? 676 or 876, perhaps? It does touch its Parent twice, on both sides of the Pittsburgh Metro Area *EDIT* not 676, since it is in use in Philly

Of course, I-238 in Cali is low hanging fruit, here

Both termini of US 158 are at US 64. It should be US 164.

Would that not better qualify as an (even)64, or does the even/odd 3digit guidelines only apply for Interstates, and not US routes?

[hotdogPi]

I understand it isn't because the route and designation was extended/added to a previous, shorter route, but shouldn't I-376 in Western PA really be an (even)76? 676 or 876, perhaps? It does touch its Parent twice, on both sides of the Pittsburgh Metro Area

Of course, I-238 in Cali is low hanging fruit, here

Both termini of US 158 are at US 64. It should be US 164.

Would that not better qualify as an (even)64, or does the even/odd 3digit guidelines only apply for Interstates, and not US routes?

The first digit in 3-digit US routes refers to their position along the parent route. Like other guidelines, this rule sometimes gets broken.

[jp the roadgeek]

Of course, I-238 in Cali is low hanging fruit, here

As is I-99.

[freebrickproductions]

US 412, anyone?

[MNHighwayMan]

US 412, anyone?

And 425.

[Max Rockatansky]

AZ 24 and AZ 143 don't follow any previous conventions in Arizona.  Out of grid stuff in Florida like FL 112 around Miami doesn't make much sense to me.  Someone already lobbed up I-238 but that kind of makes sense when you realize it is a glorified extension of CA 238 and understand the background in California about numbering duplication.  US 400, 412, 425, and 163 are all infamous bastardizations of the US Route grid.

[Takumi]

US 158 entered Virginia and met US 58 when they first appeared. Not sure why they changed its routing.

[jwolfer]

... Out of grid stuff in Florida like FL 112 around Miami doesn't make much sense to me....

I never understood 112. There are plenty of 9xx numbers available. Is it pre 1946 number? Like CR 3 in Volusia county. Even then it makes no sense. Florida did a complete renumbering for state roads

Z981

[jwolfer]

SR 9336 in Miami Dade and Monroe County FL.. plenty of 9xx available, extend Krome Ave 's designation 997.. it was all SR 27 at one point. They could have made it 927.

East of Jacksonville SR 10 is signed on Atlantic Blvd.( Most of SR10 is hidden under US 90) some people think the SR10 is a continuation of I-10. I wonder why FDOT didn't feel the need to change it. Maybe because it is universally called Atlantic Blvd

Z981

[bing101]

CA-170 in Los Angeles its a low hanging fruit too. That freeway should be renamed CA-305/I-305.

I-305 makes no sense because nobody in Sacramento ever call Cap City Freeway I-305. Its US-50 or former Business 80.

Business 80 should be called CA-51 fully until CA-99 is renamed I-7 or I-9
Then CA-51 would need to get a CA-x07 or a CA-x09 in its place.

I-980 and CA-24 should be renamed CA-980 but then again I-980 was supposed to be the route to Southern Crossing to Candlestick Park though.

[Max Rockatansky]

CA-170 in Los Angeles its a low hanging fruit too. That freeway should be renamed CA-305/I-305.

I-305 makes no sense because nobody in Sacramento ever call Cap City Freeway I-305. Its US-50 or former Business 80.

Business 80 should be called CA-51 fully until CA-99 is renamed I-7 or I-9
Then CA-51 would need to get a CA-x07 or a CA-x09 in its place.

I-980 and CA-24 should be renamed CA-980 but then again I-980 was supposed to be the route to Southern Crossing to Candlestick Park though.

Pretty much almost all the new numbers post 1964 don't make a ton of sense when there was some semblance of order before.  Usually three digit routes were secondary while the one and two were for major urban corridors. 

[CNGL-Leudimin]

Any unsigned interstate. Sign them, damnit!

US 412, anyone?

And 425.

As well as US 400.

[bing101]

CA-170 has to be a carryover when US-70 was in the Los Angeles area but the 70 designation for California moved to the Sacramento Valley as CA-70. Its now in Oroville and Marysville. CA-170 would have to be moved to northern portion of the Sacramento Valley.


https://en.wikipedia.org/wiki/California_State_Route_70


CA-180


https://en.wikipedia.org/wiki/California_State_Route_180


Its the only I/CA-X80 that does not connect or is hundreds of miles away from I-80.

[US71]

US 96

AR 400

[Takumi]

VA 90003, 90004, and 90005

[fillup420]

The northern-most part of US 321 is completely east-west, and the north/south directions even switch in Elizabethton. I think it should be a separate route from the northern split with US 421 to its northern terminus. US 170 or seems like a good number to me. Or at the very least, just sign US 321 as east-west from there onward.

[Aerobird]

... Out of grid stuff in Florida like FL 112 around Miami doesn't make much sense to me....

I never understood 112. There are plenty of 9xx numbers available. Is it pre 1946 number? Like CR 3 in Volusia county. Even then it makes no sense. Florida did a complete renumbering for state roads

Z981

Apparently there were a lot of numbers that were changed in SE FL in the 1970s, but '112' - which, According To The Wiki, was assigned to the road originally as a planning placeholder - managed to stick.

I want to say that somewhere I read once that they once intended for toll roads to have distinct numbers (which might explain the Turnpike being FL-91), but I might have imagined that.

[KeithE4Phx]

AZ 24 and AZ 143 don't follow any previous conventions in Arizona.

Neither do AZ 347, AZ 238 (which ends at the Pima/Maricopa County line, becoming County Road 238 between there and Gila Bend), the former AZ 153 (now 44th St. in south Phoenix), and the future AZ 30 (Durango Freeway).  Let's not even talk about AZ 210 in Tucson, which connects to no other numbered highway.  Arizona never numbered any non-Interstate below 60 until recent years. 

Neither did they use 0 thru 5 as the second digit on 3-digit highways, with the exception of AZ 504 in the Navajo Nation, continued from NM 504, in the 1970s.  Now we have/had/will have State Routes 24, 30, ex-50, 143, ex-153, L101, L202, 210, 238, L303, and 347.

My guess is that state routes numbered 12 thru 59 (10 and 11 are/will be Interstates, and there are no single-digit highways in Arizona other than I-8) are to be allocated for non-interstate freeways, although I've never been able to find any documentation on it.

I've always had a question about the Loop 303 (officially, AZ 303L).  It's not a loop, never has been, and never will be one AFAIK.  Why not renumber it as AZ 33 (other than $$$, of course.  )?

[NE2]

I'm trying to apply rules that don't exist.

[formulanone]

SR 9336 in Miami Dade and Monroe County FL.. plenty of 9xx available, extend Krome Ave 's designation 997.. it was all SR 27 at one point. They could have made it 927.

I like to think that they proposed 936, but that was too close to 836, an important corridor. They wanted 933, but that was taken. So...they either compromised, or FDOT was infuriated that day.

... Out of grid stuff in Florida like FL 112 around Miami doesn't make much sense to me....

I never understood 112. There are plenty of 9xx numbers available.

Apparently there were a lot of numbers that were changed in SE FL in the 1970s, but '112' - which, According To The Wiki, was assigned to the road originally as a planning placeholder - managed to stick.

I always thought either 88, 86, 96, or even 900 would have worked (too close to "90", perhaps).

SR 736 is also out of place among other 8xx numbers; it was once FL 82. "828" would work, but it was once used in place of what's currently part of SR 934. Then again, there's a few 700s in the Panhandle, so I guess that's the extra-number lot.

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Alaska's SR 98...why that number?

Alabama's SR 604 and 605? There were other available numbers in the 200-300s.

[Max Rockatansky]

AZ 24 and AZ 143 don't follow any previous conventions in Arizona.

Neither do AZ 347, AZ 238 (which ends at the Pima/Maricopa County line, becoming County Road 238 between there and Gila Bend), the former AZ 153 (now 44th St. in south Phoenix), and the future AZ 30 (Durango Freeway).  Let's not even talk about AZ 210 in Tucson, which connects to no other numbered highway.  Arizona never numbered any non-Interstate below 60 until recent years. 

Neither did they use 0 thru 5 as the second digit on 3-digit highways, with the exception of AZ 504 in the Navajo Nation, continued from NM 504, in the 1970s.  Now we have/had/will have State Routes 24, 30, ex-50, 143, ex-153, L101, L202, 210, 238, L303, and 347.

My guess is that state routes numbered 12 thru 59 (10 and 11 are/will be Interstates, and there are no single-digit highways in Arizona other than I-8) are to be allocated for non-interstate freeways, although I've never been able to find any documentation on it.

I've always had a question about the Loop 303 (officially, AZ 303L).  It's not a loop, never has been, and never will be one AFAIK.  Why not renumber it as AZ 33 (other than $$$, of course.  )?

Essentially the numbering theory that I have has to do when Arizona had US 66, 80, 91, 89, 180, 260, and 70 all in the state back when the original state highways were being plotted out.  It seemed that most of the state highways more less tended to stay in the same 60-99 band with child routes assuming whatever point of origin route was with a third digit.  So in a sense things like like AZ 266 and AZ 366 make perfect sense when they connected to US 666.  I would almost kind of compare the route numberings to how Washington State has them now. 

I can kind of give AZ 210 a pass since there seems to have been much grander designs for it.  AZ 51 at least once appeared on planning maps as I-510, so that one makes sense to me also.  Really any spur freeway in the Phoenix area ought to be carrying route numbers like the Loop freeways, really anything X0X.  I have no idea what was going on with stuff like 347, 143, 153 and 238...it seems like ADOT just picks random shit out of a hat in the post-Interstate era.

[Charles2]

I've never understood why Tennessee's lone spur route from I-40 is designated as I-140, given that it connects Knoxville and Maryville.  Since it's in the eastern part of the state, shouldn't it have been I-540, 740 or 940?

[KeithE4Phx]

AZ 51 at least once appeared on planning maps as I-510, so that one makes sense to me also.

Back in the mid 1960s, what little there was of what is now I-10 north of the 17 split was signed as I-510.  It ended at Buckeye Rd. and was strictly used for Sky Harbor access from I-17.  This was when the intention was to run I-10 on the still-to-be-built Durango Freeway that will eventually become AZ 30.  Eventually. 

[Max Rockatansky]

CA-170 has to be a carryover when US-70 was in the Los Angeles area but the 70 designation for California moved to the Sacramento Valley as CA-70. Its now in Oroville and Marysville. CA-170 would have to be moved to northern portion of the Sacramento Valley.


https://en.wikipedia.org/wiki/California_State_Route_70


CA-180


https://en.wikipedia.org/wiki/California_State_Route_180


Its the only I/CA-X80 that does not connect or is hundreds of miles away from I-80.

Thing is that CA 180 has been there since 1934, way before the Interstate era.  Given that it isn't an X80 number it wasn't like it could just been swapped out with another kind of how like the original CA 28 was renumbered CA 128.  I guess it could be assigned a lower digit given the importance of the corridor has grown if the 180 number ever needed to be freed up.  It isn't like there aren't numbers like "30" available for reuse these days.

Interestingly one could make the argument that there is way too many 3d Interstates in California and that they are actually what doesn't make much sense.  Hell Caltrans could throw CA 17 back on I-880 and it would have a lot more route continuity, I-238 could just be bumped back down to a state highway.