CA 142

[Max Rockatansky]

Here is a state highway that I don't think anyone has really hit on in much detail:

California State Route 142 as presently constructed is a twelve-mile State Highway located in Orange County and San Bernardino County.  The constructed part of California State Route 142 begins in Yorba Linda at California State Route 90.  From Yorba Linda the alignment of California State Route 142 follows Valenica Avenue and Carbon Canyon Road through the Chino Hills into San Bernardino County.  Upon entering San Bernardino County, the constructed segment of California State Route 142 terminates at California State Route 71 via Chino Hills Parkway.  California State Route 142 has a nine-mile unconstructed segment which would carry it from California State Route 71 to California State Route 210 in Upland.  Depicted above is Carbon Canyon Road as seen in the January 1939 California Highways & Public Works when it was part of Legislative Route Number 177 prior to being renumbered California State Route 142.

https://www.gribblenation.org/2023/01/california-state-route-142.html?m=1

[GaryA]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

[Max Rockatansky]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

I believe so, but the 142 number came about post-1964.  Patterns are way harder to discern in the 1964 Renumbering versus how the original 1934 Sign State Route was laid out.

[TheStranger]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

[kurumi]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

[Max Rockatansky]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

It would have been nice to keep CA 28 where it originally was.  The whole 4, 8, 12, 16, 20, 24, 28, 32, 36 and 44 grid is still somewhat observable today. 

[TheStranger]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

In that vein, 221 is former 29/121 (though was originally used for an unbuilt road in that area)

[thsftw]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

In that vein, 221 is former 29/121 (though was originally used for an unbuilt road in that area)

What unbuilt road around Napa are you referring to?

[Max Rockatansky]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

In that vein, 221 is former 29/121 (though was originally used for an unbuilt road in that area)

What unbuilt road around Napa are you referring to?

221 was originally intended as a northern bypass of Napa.

[Quillz]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

It would have been nice to keep CA 28 where it originally was.  The whole 4, 8, 12, 16, 20, 24, 28, 32, 36 and 44 grid is still somewhat observable today. 

I agree. Unless the states work together ahead of time, doing a later renumbering just to maintain some kind of state line continuity is silly.

[Occidental Tourist]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

It would have been nice to keep CA 28 where it originally was.  The whole 4, 8, 12, 16, 20, 24, 28, 32, 36 and 44 grid is still somewhat observable today. 

I agree. Unless the states work together ahead of time, doing a later renumbering just to maintain some kind of state line continuity is silly.

Particularly since there are so many other highways that cross into Nevada and Oregon where maintaining route number continuity wasn't a consideration at all.

[Quillz]

Any idea whether the highway number 142 was chosen because it might have been seen as a "branch" of CA-42 (where it ended at that time)?

I know California didn't do a lot of that sort of numbering for state routes, but there are a few (like CA-107) where they might well have done so.

107 is a former segment of 1934-1958 Route 7, bypassed I want to say in the early 1940s.  (The San Fernando Valley portion of I-405 was originally built as a freeway upgrade of Route 7!)

As for post-1964 state route numbers that have some derivation from neighboring/previous designations, I can think of three examples:

242 (former 24, though signed as 24 until 1988 or so)
330 (former 30, bypassed in 1972?)
371 (former 71, route created after I-15 took over former 71 between 91 and 215)

Also, CA 128 used to be numbered CA 28, before that designation was moved to Tahoe for continuity across the state line.

It would have been nice to keep CA 28 where it originally was.  The whole 4, 8, 12, 16, 20, 24, 28, 32, 36 and 44 grid is still somewhat observable today. 

I agree. Unless the states work together ahead of time, doing a later renumbering just to maintain some kind of state line continuity is silly.

Particularly since there are so many other highways that cross into Nevada and Oregon where maintaining route number continuity wasn't a consideration at all.

I always thought there was intended to be some kind of continuity between OR-39 and CA-139, but as far as I know, the numbers being kind of similar was just coincidence.

I've always felt if you really want the same number across state lines, make it a US highway.

[JustDrive]

I've always been intrigued at the fact that CA 142 is the only road that crosses the Orange/San Bernardino county line

[stevashe]

I always thought there was intended to be some kind of continuity between OR-39 and CA-139, but as far as I know, the numbers being kind of similar was just coincidence.

I've always felt if you really want the same number across state lines, make it a US highway.

I noticed that too, but I recently realized that Oregon doesn't even have a 139, so if they really cared about matching, they could have changed the number easily.

[skluth]

I've always felt if you really want the same number across state lines, make it a US highway.

I don't think NE 92 which becomes IA 92 then IL 92 needs to be or should be a US highway. I also think it's cool that the same number traverses all three states.

[Quillz]

I've always felt if you really want the same number across state lines, make it a US highway.

I don't think NE 92 which becomes IA 92 then IL 92 needs to be or should be a US highway. I also think it's cool that the same number traverses all three states.

If it was set up that way from the start, that's fine. I'm talking more about a state renumbering a highway later just to line up with another state's. If it's that important, make them a US highway.