Three-Digit Roads That Are Longer Than Their Parent

[adventurernumber1]

What are some three-digit roads that are longer than their parent? I can name two instances of this:

US 278 is longer than US 78, and will be even longer when US 78 is truncated after I-22 is completed (assuming that will happen). Currently, US 78 clocks in at 715 miles, and US 278 clocks in at 1,074 miles. Once/if US 78 is truncated, US 278 will then practically be twice as long as its parent, US 78.

Also: US 321 is longer than US 21. US 21 clocks in at 394 miles, and US 321 clocks in at 517 miles. Of course, though, US 21 used to be longer historically, but US 21 was truncated north of Virginia when I-77 took its place there.

Any other instances?

[SD Mapman]

US 191 and 91. By a lot.

[Mapmikey]

3 of US 21's current children are longer - 221, 321, and 421

Also, 191 is way longer than 91 (so is non-daughter 491)
281 is longer than 81
180 is longer than 80

Mapmikey

[hbelkins]

I don't think there are any 3di roads that are longer than their parents.

There are definitely some 3dUS routes that are longer than their parents, however.

[SteveG1988]

Inside one state: I-676 is longer than I-76

[NE2]

Inside one state: I-676 is longer than I-76

I-535 WI is longer than I-35 WI. Boned.

[SteveG1988]

All the x78s in NYC

[adventurernumber1]

Yeah, we can do this in one state as well:

I-155 is longer than I-55 in Tennessee.

[robbones]

I don't know if this would count, US 271 is longer than US 71 in Texas.

[Eth]

I-238 is, of course, longer than the zero-mile I-38.

[Zeffy]

US 202 is longer than the eastern segment of US 2.

[freebrickproductions]

I-238 is, of course, longer than the zero-mile I-38.

US 400 is also longer than the zero-mile US 0.

[Henry]

Inside one state: I-676 is longer than I-76

I-535 WI is longer than I-35 WI. Boned.

Then there's I-275 IN, which is longer than the nonexistent I-75 IN!

[hbelkins]

I don't think there are any 3di roads that are longer than their parents.

There are definitely some 3dUS routes that are longer than their parents, however.

I-238 is, of course, longer than the zero-mile I-38.

US 400 is also longer than the zero-mile US 0.

US 202 is longer than the eastern segment of US 2.

I don't know if this would count, US 271 is longer than US 71 in Texas.

Sigh... 

[Zeffy]

Sigh... 

I don't get it. While the title says '3di', the original post clearly states

What are some three-digit roads that are longer than their parent?

so all the posts here have been relevant to the OP's query.

[SD Mapman]

Sigh... 

I don't get it. While the title says '3di', the original post clearly states

What are some three-digit roads that are longer than their parent?

so all the posts here have been relevant to the OP's query.

What about state routes? Any of those?

[Brandon]

Sigh... 

I don't get it. While the title says '3di', the original post clearly states

What are some three-digit roads that are longer than their parent?

so all the posts here have been relevant to the OP's query.

What about state routes? Any of those?

Depends on the state.  Some, like Indiana, have 3 digit child routes; yet others, like Illinois, do not.

[vdeane]

I don't know if you'd have it for state routes on a total length basis, but per county could work.  If so, you can add NY 9N in Essex and NY 12B in Madison.  Probably a few others as well.

[hbelkins]

Sigh... 

I don't get it. While the title says '3di', the original post clearly states

What are some three-digit roads that are longer than their parent?

so all the posts here have been relevant to the OP's query.

3di refers specifically to interstates. Hence the "i." If he was interested in three-digit US routes, he should have put 3dUS in the subject line.

What about state routes? Any of those?

Not all states consider three-digit routes to be children of parents. That's certainly not the case in Kentucky.

[adventurernumber1]

Sorry hb, I guess I made a mistake. Even though 3di usually refers to interstates, I actually thought it was just short for "three digit," because of the "di." But maybe I should have just put "three digit" in the title. At least I now know 3di & 2di specifically refer to interstates. 

[bassoon1986]

US 81 - 1220 miles
US 281 - 1882 miles

[jeffandnicole]

US 206 is 130 miles in NJ.  US 6 never enters the state.

And speaking of 130...

US 130 is 83 miles long in NJ.  US 30 is 58 miles long.  The starting point of US 130 doesn't branch from the parent, but rather meets with 30 at about the 1/3 point along the route (around MP 28) for about a mile.  And 130 usually gets referenced at that point; not 30.

[PHLBOS]

US 206 is 130 miles in NJ.  US 6 never enters the state.

Similar could be said about I-287 NJ but I-87 never entering the Garden State (though it gets close).

[hbelkins]

In Kentucky both US 231 and US 431 are longer than US 31. US 31E and US 31W are also both longer than US 31 within the Bluegrass State.

I'm guessing that US 250 is also longer than US 50 in both West Virginia and Virginia.

The parents of US 119 and US 150 never enter Kentucky. US 421 has a three-state run (IN, KY and TN) in which its parent is absent.

[roadman65]

Sigh... 

I don't get it. While the title says '3di', the original post clearly states

What are some three-digit roads that are longer than their parent?

so all the posts here have been relevant to the OP's query.

3di refers specifically to interstates. Hence the "i." If he was interested in three-digit US routes, he should have put 3dUS in the subject line.

What about state routes? Any of those?

Not all states consider three-digit routes to be children of parents. That's certainly not the case in Kentucky.

That is all iffy in some states like NJ.  NJ 133 is a child of NJ 33, but NJ 182 is not a child to NJ 82.