Where the same route defaults into another route twice

[roadman65]

We have thousands ( well maybe not that) of highways defaulting into another highway, but not many that do it twice like SC 327 South in Florence County, SC. Both in East Florence on Williston Road and in Effingham at its southern terminus, the same route defaults into US 301 south twice in its short 22 mile existence.

Ditto for NB US 301 in the opposite direction.
https://goo.gl/maps/N4aN3kkvQ1VMuLsd8
https://goo.gl/maps/iEpoDBXrMk5CCJ4SA

Any others out there that happen to default more than once into the same route?

[Mapmikey]

We have thousands ( well maybe not that) of highways defaulting into another highway, but not many that do it twice like SC 327 South in Florence County, SC. Both in East Florence on Williston Road and in Effingham at its southern terminus, the same route defaults into US 301 south twice in its short 22 mile existence.

Ditto for NB US 301 in the opposite direction.
https://goo.gl/maps/N4aN3kkvQ1VMuLsd8
https://goo.gl/maps/iEpoDBXrMk5CCJ4SA

Any others out there that happen to default more than once into the same route?

VA/WV 598 does this with US 52 in the Bluefield Wv area

[1995hoo]

Insofar as the eastern side of the Capital Beltway is legally designated solely as I-95, with the I-495 "concurrency" being something that's posted solely for motorist convenience, you could deem the I-495 portion as satisfying this condition–in both Springfield, Virginia, and College Park, Maryland, it defaults you onto I-95 when you stay on the Beltway. (This was all the more true during the years when the eastern side wasn't dual-signed.)

[Crown Victoria]

NJ 347 defaults onto NJ 47 in Dennis Township, Cape May County and Maurice River Township, Cumberland County.

This design is due to the fact that NJ 347 is shorter and straighter than NJ 47 between NJ 347's termini and therefore is the preferred route for shore traffic.

[skluth]

WI 32 and WI 57 once had three separate concurrencies. In DePere from the Claude Allouez Bridge to the split just south of Cook St, the four lane section between Kiel and Millhome, and with I-43 between Port Washington and Mequon. However, it's now just two concurrencies as WI 32 and WI 57 are now concurrent from DePere to Millhome.

[Dirt Roads]

WV-16 has a short concurrency with US-19 on Corridor G in the Greentown section south of Oak Hill, and another concurrency with US-19 (not on Corridor G) in Beckley proper.

[Max Rockatansky]

CA 1 does this arguably several times with US 101 depending on how you want to count unsigned/signed multiplexes versus legislative description. 

[TheHighwayMan3561]

I guess with how the Fish Lake Interchange is numbered, I-494 and I-694 default into each other twice in MSP.

[SkyPesos]

I-670 KC defaults onto I-70 at both ends.

[paulthemapguy]

Indiana 63 continues onto US Route 41 approaching either end of that state highway.  I think this matches what the OP was asking for...

[Takumi]

US 60 and VA 5 in Richmond and Williamsburg.

[andrepoiy]

Highway 403 defaults onto Highway 401 on both ends

[ilpt4u]

I feel like US 40 defaults onto I-70 decently often, off of the old parallel alignments

[TheGrassGuy]

Could someone here clarify what "default" even means? Apparently it's when one highway multiplexes with the other but the latter is clearly dominant?

[TheHighwayMan3561]

Could someone here clarify what "default" even means? Apparently it's when one highway multiplexes with the other but the latter is clearly dominant?

Where two routes come together, which one goes straight through and which one "turns"  to join the first route.

[I-55]

I-475 onto I-75 in Macon, GA

[Bitmapped]

This happens twice with US 30 and OH 172. Heading west from Lisbon, US 30 veers left while OH 172 heads straight. US 30 comes back onto OH 172's alignment in East Canton, and then turns off it on the east side of Canton. OH 172 stays straight on what, here, is the original US 30 alignment. Near Dalton, OH, staying straight on OH 172 merges onto US 30 westbound.

[cockroachking]

I guess US-30 and PA-462 qualifies for this list.