Routes That Diverge and then Re-Merge

[CoreySamson]

Last year, when I was clinching TX 19 on a trip back to college, I noticed something fairly strange. Going NB from the town of Crockett, TX 19 begins a pretty lengthy concurrency with US 287 that continues until the town of Palestine. The interesting thing is that on one side of downtown the routes diverge, but then they form another concurrency a couple miles later on the other side of town and continue concurrently for a couple miles after that. Here is a map of what I'm describing, with US 287 in blue and TX 19 in orange:



I think this instance of routes diverging and then remerging (especially so quickly) is pretty unique, but I'm curious if there are similar examples from around the nation, excluding examples of E/W or N/S splits on certain routes.

[Max Rockatansky]

CA 1 and US 101 do this four times depending if you count unsigned concurrencies. 

[roadman65]

US 69 near Miriam, KS from I-35.

[JoePCool14]

US-41 in Illinois between the Edens Spur and Russell Road (IL-WI border) is one that immediately comes to mind for me.

There's also I-90 and I-94 between Chicago and Madison if you want a longer one.

I can't think of any non-highway examples off the top of my head since Illinois is good about not having unnecessary concurrencies.

[TheHighwayMan3561]

MN:

US 212/TH 5 from I-494 in Eden Prairie to just west of Mitchell Road, then duplex again through Norwood Young America (with TH 25)
US 61/TH 23 formerly duplexed from Hinckley to Sandstone, then had another duplex through Duluth
I-94 and US 10 formerly duplexed west of Fargo in addition to their currently existing one in St. Paul

[GaryV]

I-75 and US-23 in MI and OH. Except when they re-merge in OH for a short distance, they are a wrong-way concurrency.

[Takumi]

Most of the ones I can think of off the top of my head are pretty far apart between meetings.

-US 1 and 301 have concurrencies in Virginia and Florida
-US 60 and I-64 are concurrent across the Hampton Roads Bridge-Tunnel, and then again from west of Lexington into West Virginia
-US 33 and 250 in Richmond VA and Elkins WV
-former one is VA 5 and US 60 in Richmond and Williamsburg (the latter being wrong-way), but VA 5 now ends at 60 in Richmond instead updated that this is still a current one

[roadman65]

US 301 with I-95 twice.

US 1 with I-95 several instances.

US 22 with I-78 enters and leaves in the Lehigh Valley Area.

[hotdogPi]

Related thread: https://www.aaroads.com/forum/index.php?topic=2811. The linked thread is more inclusive because meeting twice is enough and doesn't require an overlap.

Not mentioned in that thread is MA 110 and MA 113 in Methuen, about 4 miles apart.

[roadman65]

Oh there is US 9 in NJ now three times overlapped on the Parkway.

US 9 and NY 9N overlap twice with one a wrong way.

US 41 and US 11/64 in Chattanooga twice.

US 250; and US 340 meet twice in Waynesboro, VA as US 250 is the business route and US 340 is the Truck Bypass of Downtown.

[SEWIGuy]

WI-32 and WI-57 duplex south out of Green Bay, diverge north of Plymouth, then merge back (along with I-43) south of Port Washington.
US-45 and I-41/US-41 duplex on two separate instances, just northwest of Milwaukee and briefly in Fond du Lac.

[dfilpus]

NC:

US 15/501 is a long currency from Durham to Laurinburg. In Sanford, it is concurrent with US 1. It breaks to Carthage and returns to US 1 in Southern Pines, where it is concurrent through Aberdeen where is splits off south to Laurenburg.

[Hunty2022]

US 29 and I-85 from the SC Border to Greensboro, NC.

[Mapmikey]

Some more that have concurrencies on both meetings within a relative short distance

US 87 and US 287 in Amarillo TX
US 74 and US 76 in Wilmington NC
NC 32 and NC 37
NC 32 and NC 45 in Plymouth NC
NC 125 and NC 903
US 19 and US 74
US 221 and NC 194 (3 times)

[kphoger]

Isn't it fairly common for a US Route to diverge from the Interstate for a while, then rejoin?  Such as US-40 and I-70 in multiple locations.

[jp the roadgeek]

US 6 and US 202 from Bear Mountain to Peekskill, NY; then again from Brewster, NY to Danbury, CT

I-94 originates from I-90 near Billings then they meet again in Wisconsin, and once again in Chicago.

US 6 and US 44 meet as a concurrency with I-84 to cross the Connecticut River on the Bulkeley Bridge, then meet again as US 6 leaves I-84 in Manchester for a concurrency to Bolton Notch, then meet yet again for a concurrency in Providence.

[74/171FAN]

-former one is VA 5 and US 60 in Richmond and Williamsburg (the latter being wrong-way), but VA 5 now ends at 60 in Richmond instead

I thought that VA 5 and US 60 were concurrent on Main St west to 25th St.  Was VA 5 truncated without us knowing?

US 250; and US 340 meet twice in Waynesboro, VA as US 340 is the business route and US 250 is the Truck Bypass of Downtown.

FTFY.

US 222 and PA 272 is a good example in PA.  They have a short concurrency just north of the PA Line in Wakefield.  Then PA 272 basically becomes the through route towards Buck while US 222 heads northeast to serve Quarryville.  Both routes remerge in Willow Street (with PA 741 concurrent with US 222 at the remerge) to serve Lancaster before US 222 heads east with US 30 to its freeway to Reading while PA 272 follows the pre-freeway routing of US 222 to its northern terminus at the US 222/PA 568 interchange north of Dover and the PA Turnpike.

[roadman65]

US 9W and NY 32 concur at least twice. If not they cross paths several times.

Then US 4 and NY 32 meet twice. Both in Mechanicsville and Schuylerville and once more, I think, near Hudson Falls.

[kphoger]

Oh wow, this one hasn't been mentioned yet:  US 62 & US 82 at Lubbock, TX

[Takumi]

-former one is VA 5 and US 60 in Richmond and Williamsburg (the latter being wrong-way), but VA 5 now ends at 60 in Richmond instead

I thought that VA 5 and US 60 were concurrent on Main St west to 25th St.  Was VA 5 truncated without us knowing?

I thought it had been officially truncated a few years ago when the Main/Dock roundabout was built, but I seem to have misremembered. It's certainly not posted westbound past the roundabout, and there are no postings anywhere that I can see at Main and Williamsburg. There are a couple trailblazers eastbound on Main, one at 25th and one at the curve just past Poe's Pub, but they look old enough to be pre-2003.

[WillWeaverRVA]

-former one is VA 5 and US 60 in Richmond and Williamsburg (the latter being wrong-way), but VA 5 now ends at 60 in Richmond instead

I thought that VA 5 and US 60 were concurrent on Main St west to 25th St.  Was VA 5 truncated without us knowing?

I thought it had been officially truncated a few years ago when the Main/Dock roundabout was built, but I seem to have misremembered. It's certainly not posted westbound past the roundabout, and there are no postings anywhere that I can see at Main and Williamsburg. There are a couple trailblazers eastbound on Main, one at 25th and one at the curve just past Poe's Pub, but they look old enough to be pre-2003.

The VDOT ArcGIS map shows VA 5 ending at US 60, so you're right. VA 5 westbound used to be posted just east of Poe's Pub but that sign is gone now.

[Mapmikey]

-former one is VA 5 and US 60 in Richmond and Williamsburg (the latter being wrong-way), but VA 5 now ends at 60 in Richmond instead

I thought that VA 5 and US 60 were concurrent on Main St west to 25th St.  Was VA 5 truncated without us knowing?

I thought it had been officially truncated a few years ago when the Main/Dock roundabout was built, but I seem to have misremembered. It's certainly not posted westbound past the roundabout, and there are no postings anywhere that I can see at Main and Williamsburg. There are a couple trailblazers eastbound on Main, one at 25th and one at the curve just past Poe's Pub, but they look old enough to be pre-2003.

The VDOT ArcGIS map shows VA 5 ending at US 60, so you're right. VA 5 westbound used to be posted just east of Poe's Pub but that sign is gone now.

The CTB has stopped regularly documenting reroutes and truncations that don't result in fewer primary route-miles (as would the case be with VA 5 cut back on its US 60 concurrency).

The WB posting by Poe's Pub was removed in 2014-15 and to be fair so was the US 60 posting.

[hbelkins]

All kinds of examples could be cited in Kentucky. Probably the most obvious example is US 60 and 62. They enter the state from Illinois (concurrent with US 51) and diverge in Wickliffe. They become concurrent again in Paducah before diverging east of town. They follow separate paths to Versailles, where there is a short wrong-way concurrency of US 60 east and US 62 west (and vice versa) before splitting for good.

US 19 and WV 16 do a pretty involved dance between North Beckley and Fayetteville.

[Bruce]

I-90 and US 14 overlap 3 separate times in Wyoming and western South Dakota, then reunite in Minnesota

And of course there's the case of I-84 and US 30, which diverge and merge several times in Oregon and Idaho due to the latter's secondary job of serving bypassed downtowns.

[Henry]

I-5 and CA 99, at Wheeler Ridge, Sacramento and Red Bluff.