State with most intrastate US Highway Designations

[Beltway]

Even after the correction on US-58, Virginia has three -- Alt. US-58, US-211 and US-360.

If you're going to include bannered routes, wouldn't you also count Alt. US 15 and Alt. US 301?  But that's a huge can o'worms, and personally I don't think of bannered routes as standalone US routes.

There are also alternates for 11 and 460 in Roanoke, as well as what's signed as US 220A.
Not to mention an iteration of Alternate US 41 between Madisonville and Henderson, Ky. Or signed US 74A, US 321A and US 220A in North Carolina. Or the directionally-suffixed 45E and W in Tennessee, 49E and W in Mississippi, or 70N and S in Tennessee.

Good question as to how to categorize an Alternate U.S. route.

If it is a major route would it be the equivalent of a 3-digit U.S. route?

In the case of Alt. US-58, it is 87 miles long, and at full buildout will be a 4-lane arterial highway, the only missing links being future bypasses at 3 towns.  They could have just as easily designated it as US-458.

[roadman65]

US 69 isn't intrastate, did you mean 96 I assume?

Yes I meant US 96 as I used my iPhone which is small keys.

[roadman65]

Even after the correction on US-58, Virginia has three -- Alt. US-58, US-211 and US-360.

If you're going to include bannered routes, wouldn't you also count Alt. US 15 and Alt. US 301?  But that's a huge can o'worms, and personally I don't think of bannered routes as standalone US routes.

There are also alternates for 11 and 460 in Roanoke, as well as what's signed as US 220A.
Not to mention an iteration of Alternate US 41 between Madisonville and Henderson, Ky. Or signed US 74A, US 321A and US 220A in North Carolina. Or the directionally-suffixed 45E and W in Tennessee, 49E and W in Mississippi, or 70N and S in Tennessee.

Good question as to how to categorize an Alternate U.S. route.

If it is a major route would it be the equivalent of a 3-digit U.S. route?

In the case of Alt. US-58, it is 87 miles long, and at full buildout will be a 4-lane arterial highway, the only missing links being future bypasses at 3 towns.  They could have just as easily designated it as US-458.

They are branches not primary despite Alt US 58 is longer than US 46 in NJ.

[paulthemapguy]

Texas wins with 57, 96, 175, 181, and 290.

Now, for people who have a philosophical problem with intra-state US routes, do you also have a problem with what I call "stealth violators"?  These are US routes that escape scrutiny because they do exist in more than one state, but not by much.  The prime example, US 206, has been mentioned: its length in PA is less than a half-mile.

US223 is a stealth violator because of its pointless duplex with US23 entering Ohio to end at a non-US route.

[roadman65]

US 131 is one that is entirely in MI but a very short piece in IN!

[CNGL-Leudimin]

That one got me, I thought at one point it extended to US 20, but nope. Until 1980 it was a Michigan-only route, ending abruptly at the Indiana line.

[ftballfan]

US 131 is one that is entirely in MI but a very short piece in IN!

In the case of US-131, it does hit the Indiana Toll Road not long after crossing into IN

[paulthemapguy]

Well, with US131 and US223 in Michigan, here's another question:  Which state is home to the most US routes that barely extend outside their primary home state?  (Let's say, the route spends less than 25 miles outside the primary state to qualify.)

[usends]

Well, with US131 and US223 in Michigan, here's another question:  Which state is home to the most US routes that barely extend outside their primary home state?  (Let's say, the route spends less than 25 miles outside the primary state to qualify.)

See the last paragraph in post #10 

[Mapmikey]

Well, with US131 and US223 in Michigan, here's another question:  Which state is home to the most US routes that barely extend outside their primary home state?  (Let's say, the route spends less than 25 miles outside the primary state to qualify.)

Under this criteria South Carolina has US 123, US 176, US 178, US 521.

A different question could be which state has had the most short mainline US Route segments (10 miles or less) at any point?

The case for Virginia:

Current– US 11E, US 11W, US 219, US 311
Former– US 25E, US 240, US 321, US 411, US 421, US 511
US 340 in its early days just misses at 11 miles as do brief versions of US 117 and US 158

[CNGL-Leudimin]

A different question could be which state has had the most short mainline US Route segments (10 miles or less) at any point?

The case for Virginia:

Former– US 411

More precisely, it appears to have been the third and current US 411, which used to run to Bristol. However it may have never entered Virginia. US 58 west of Bristol (which was the first US 411) is way longer than 16 km, and the second US 411 never entered VA.

[usends]

Which state is home to the most US routes that barely extend outside their primary home state?  (Let's say, the route spends less than 25 miles outside the primary state to qualify.)

Under this criteria South Carolina has US 123, US 176, US 178, US 521.

Also US 378.