State routes whose numbers reflect their status as former US routes?

[kphoger]

Pretty sure IL 250 in Lawrenceville is Old US 50, when US 50 was moved to the northern bypass, probably from when I-64 was to follow the US 50 corridor across Illinois

According to Richard Carlson...

IL-250 was applied in 1965 to 2 old sections of US-50 from Lawrenceville to Sumner and Olney to Noble. These routes had been Alternate-US-50 from 1947 to 1961, and unnumbered from 1962 to 1964. The section of US-50 between Sumner and Olney carries the IL-250 number as well.

[DandyDan]

Three county highways fit as well in Iowa. D20 east from the Moorland exit through Fort Dodge and on to Webster City was US 20.  Another D20 going west from Iowa Falls to north of Williams was US 20. H34 between Hastings and Corning in SW Iowa was previously US 34

But those only "fit" by chance.  They only have those numbers because that's where they fit on the grid.  Iowa county highway numbers tend to increase from north to south, beginning with 10.

Webster CH-D20 is three miles south of D14, one mile south of D18.

Hardin CH-D20 is a half-mile south of D15, three miles north of D25.  Its latitude is also only one mile off from that of Webster CH-D20.  This is just a matter of making multiple counties' grids more or less make sense with each other.

Mills/Montgomery/Adams CH-H34 is between H26 and H38.  Now, you could probably convince me that those counties' entire grids were based on the location of H34, but you'd have to put forward some evidence to convince me.

It's probably true it only fits by chance. But if I had the job of assigning county road designations, given the history of those roads, I would have given the same ones that they ended up with .

[epzik8]

MD 222 from Conowingo to Perryville, Maryland, in Cecil County, was part of US 222 until 1995. It was supposedly downgraded to discourage drivers of large trucks from traveling along the route. Conventionally, based on Maryland's state highway system, MD 222 would be in Charles County.

[DJ Particle]

Three county highways fit as well in Iowa. D20 east from the Moorland exit through Fort Dodge and on to Webster City was US 20.  Another D20 going west from Iowa Falls to north of Williams was US 20. H34 between Hastings and Corning in SW Iowa was previously US 34

Minnesota also has
County 52 in Clay and Wilkin Counties
County 10 in Ramsey and Anoka Counties
County 61 segments in Pine and Carlton, and St. Louis and Lake
County 14 in Steele and Waseca Counties

Also this inception bit...

Hennepin CSAH-88...
Which used to be MN-88...
Which used to be US-8  🤣

[bugo]

OK 270 is old US 270.
Part of OK 266 is old US 66.
OK 166 is a reference to US 66 as well.
K-383 is old US 283.

OK 266 was never a part of US 66 or US 266. It crosses OK/US 66, so that might be where it got the number,  but US 66 was never routed that way.

K-383 was also once US 383.

[bugo]

Washington Avenue in Minneapolis (old US 12/52)

In the spirit of this thread - perhaps is that why Washington Avenue is designated as County Road 152? Because, numerically speaking, that would make a lot of sense.

That's likely related to former MN 152, which was the route from Minneapolis to St. Cloud before I-94 was built (US 52 was paired with US 10 on the north side of the river during that time, and shifted to I-94 for continuity later), although some of modern County 152 extends beyond that route's length, such as the Cedar Avenue section.

Wasn't what is now I-94/US 52 once US 10S while what is now US 10 was once US 10N?

[bugo]

AR 367 is the old US 67 and AR 365 is the old US 65 before each was rerouted onto freeways.

Confusingly, AR 161 is the OLD OLD US 67 alignment south of Jacksonville, with other routings turned back either to Pulaski County or the cities of North Little Rock and Cabot. AR 367 officially starts north of the Pulaski-Lonoke county line at the AR 5 / AR 321 intersection.

AR 161 from US 70 north to Trammel Road is old US 67E, while the stretch north of Trammel was once US 67. At the intersection of Broadway and Locust in North Little Rock, US 67E followed US 70 east while US 67W turned and headed north onto Locust, east on 13th, north and east on Hills Blvd, northeast on Barbara Drive, east on Lakeview Road, north on Warden Road, east on McCain Blvd, east on Fairfax Drive, northeast on Roundtop Drive, east on Trammel Road, underneath the railroad and met US 67E at today's junction of AR 161 and Trammel Road.

[froggie]

Washington Avenue in Minneapolis (old US 12/52)

In the spirit of this thread - perhaps is that why Washington Avenue is designated as County Road 152? Because, numerically speaking, that would make a lot of sense.

That's likely related to former MN 152, which was the route from Minneapolis to St. Cloud before I-94 was built (US 52 was paired with US 10 on the north side of the river during that time, and shifted to I-94 for continuity later), although some of modern County 152 extends beyond that route's length, such as the Cedar Avenue section.

Wasn't what is now I-94/US 52 once US 10S while what is now US 10 was once US 10N?

Pre-1934, yes.  But the US 10 split didn't exist south of St. Cloud.  There was also no state highway between St. Cloud and Minneapolis on the west side of the river until 1934...when MN 152 was created.

Going back to the original comment, the 152 number has nothing to do with the 10/52 combination and everything to do with being a "spur" off of the then-newly-created US 52.