Overlapping Alternate Routes

[31E]

In Tennessee US 31A and US 41A run concurrently for about 25 miles. This is the only such overlap I've heard of, so I was wondering if there are any other instances of alternate routes overlapping in this fashion.

[xonhulu]

From Nevada:



EDIT:  I should add that this overlap isn't as long as 31A/41A, it's only about 13 miles long.

[Mapmikey]

Virginia checks in with US 11A-460A (also not as long as 31A-41A):




North Carolina used to have quite a few of these but I believe all have been decommissioned.


Mapmikey

[txstateends]

The only 2 US Alts in TX, and they actually overlap for a minute... in and just west of Hallettsville (south of I-10 between San Antonio and Houston), the northern terminus of Alt US 77 starts off split from US 77 going westward from when US 77 splits off from Alt US 90.  The 2 Alts split a few miles west of town, where Alt US 90 turns more WNW on its way to Shiner (beer, anyone?? ), while Alt US 77 turns more southwestward. 

The first WB reassurance signage in Hallettsville of the rare TX overlapping Alts:
http://goo.gl/maps/HFTTr

[Brian556]

In FL, there used to be an ALT US 27/ALT US 441 around Lake Weir. This was created when US 27/441 was realigned to the west of the lake. This one might not count 'cause they aren't separate ones that come together.

[Avalanchez71]

In Tennessee US 31A and US 41A run concurrently for about 25 miles. This is the only such overlap I've heard of, so I was wondering if there are any other instances of alternate routes overlapping in this fashion.

Heck even US 41 & US 41A run concurrently in Nashville, as well as, US 70 & US 70S.

[roadfro]

From Nevada:



EDIT:  I should add that this overlap isn't as long as 31A/41A, it's only about 13 miles long.

That overlap is actually about 15.5 miles, from US 50 in Silver Springs to the US 50A/US 95A/SR 828 roundabout junction in Fernley.

[WNYroadgeek]

US 20A and NY 15A have a 4 mile multiplex in Livonia:

[hbelkins]

New York's suffixed "A" state routes aren't necessarily alternates, are they?

[NE2]

New York's suffixed "A" state routes aren't necessarily alternates, are they?

The A's are, I think. 15A definitely is.

[Brandon]

New York's suffixed "A" state routes aren't necessarily alternates, are they?

The A's are, I think. 15A definitely is.

No, I don't think so.  New York and Oklahoma seem to use the "A" as just the first branch of their alphabet soup of routes, i.e. 9A, 9B, 9C, etc.

[NE2]

No, I don't think so.  New York and Oklahoma seem to use the "A" as just the first branch of their alphabet soup of routes, i.e. 9A, 9B, 9C, etc.

9A was an alternate (now it has a hanging south end). 17A is an alternate. So is 5A. And 3A. Got any counterexamples?

[Kacie Jane]

I'd hazard a guess that most of the lettered routes period are alternates (meet the parent at both ends) but not Alternates. On the New Jersey side, 9A wasn't an Alternate, but a Business route.

[NE2]

I'd hazard a guess that most of the lettered routes period are alternates (meet the parent at both ends) but not Alternates. On the New Jersey side, 9A wasn't an Alternate, but a Business route.

As far as I can tell, 9A's original south end was at US 9 in Yonkers.

[agentsteel53]

As far as I can tell, 9A's original south end was at US 9 in Yonkers.

this photo implies a multiplex.  or is there more going on here?  (I do not recall the context; I took the photo 7 years ago.)

[Kacie Jane]

There's definitely at least one 9/9A multiplex, though I can't recall exactly where.

[NE2]

As far as I can tell, 9A's original south end was at US 9 in Yonkers.

this photo implies a multiplex.  or is there more going on here?  (I do not recall the context; I took the photo 7 years ago.)

NY 9A was created in 1926-27 (as a renumbering of NY 6A, an alternate to NY 6). By the 1930s it was extended down into NYC (the original plan was still to end at US 9 in Manhattan, and send US 9 through the Holland Tunnel).

[Alps]

No, I don't think so.  New York and Oklahoma seem to use the "A" as just the first branch of their alphabet soup of routes, i.e. 9A, 9B, 9C, etc.

9A was an alternate (now it has a hanging south end). 17A is an alternate. So is 5A. And 3A. Got any counterexamples?

NY 32A is not an alternate at all. It connects 32 to 17B. 7A ends at the state line. 10A heads southeast while 10 heads southwest.

[NE2]

NY 32A is not an alternate at all. It connects 32 to 17B. 7A ends at the state line. 10A heads southeast while 10 heads southwest.

Thanks. Damn anal roadgeeks making them avoid "useless" overlaps.

[WNYroadgeek]

New York's suffixed "A" state routes aren't necessarily alternates, are they?

Well in this case, I'd definitely say that both 15A and 20A can be considered alternate routes to NY 15 and US 20, respectively (both terminate at their respective parents at each end).

[Alps]

NY 32A is not an alternate at all. It connects 32 to 17B. 7A ends at the state line. 10A heads southeast while 10 heads southwest.

Thanks. Damn anal roadgeeks making them avoid "useless" overlaps.

Derp, I meant 52A, not 32A. 32A itself is a different case, a branch to Palenville. It's hard to reconcile 32A or 7A with being alternate routes. I think this is a case where most lettered routes return to the parent, and A is the first letter.

[hbelkins]

NY 32A is not an alternate at all. It connects 32 to 17B. 7A ends at the state line. 10A heads southeast while 10 heads southwest.

Sounds like West Virginia. A number of their state routes, tagged with an ALT banner, are actually spur routes. Alt WV 10 runs to US 60 in Barboursville. Alt WV 34 is really the business route through Hurricane. There are other examples.