Shortest Concurrency by Highway Type(s)

[Bickendan]

I believe the shortest one in West Bengal is AH 2 over the entire length of NH 327C from the Nepal/India border to NH 327.

[Road Hog]

US 49, 63 and 64 share a concurrency of maybe 100 feet in the unincorporated community of Fair Oaks, Arkansas. The 49 and 63 simply change sides of the railroad tracks at the junction with 64. Probably the shortest concurrency in America involving 3 US highways.

[LM117]

US-117/NC-222 in Fremont, NC. The overlap is one block. Easy walking distance.

[kenarmy]

US 49, 63 and 64 share a concurrency of maybe 100 feet in the unincorporated community of Fair Oaks, Arkansas. The 49 and 63 simply change sides of the railroad tracks at the junction with 64. Probably the shortest concurrency in America involving 3 US highways.

What's really shocking is that 63 is unsigned.

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US 90 and US 98 have a 0.3 mile wrong-way concurrency in Pensacola, and a 0.2 mile concurrency in Spanish Fort.

[andrepoiy]

In areas north of Toronto, there are roads with jogs due to surveying errors back in the day. So I guess those would be very short concurrencies?

[JCinSummerfield]

Does US-62 & US-250 count?

[Evan_Th]

I-35E and I-94 have a 0.2 mile concurrency in downtown St. Paul.

Measuring gore-to-gore (as closely as I can; the gore ends below the Jackson St overpass), the concurrency is 1500 ft SW-bound and 1300 ft NE-bound.  That's almost the same as the I-90/I-87 concurrency, and less than twice as long as the I-80/I-76 wrong-way concurrency!