Multiplexes known by both numbers

[jwolfer]

Most of the times it seems that in a multiplex situation one number dominates and the other is subordinate.  ( i.e. US 50/301 in Maryland. It is called Route 50 by everyone.). In Central Florida the road is called 17/92 universally. Same with 1&9 in New Jersey. 

[NE2]

US 15-501 in North Carolina, apparently.

[1995hoo]

US 15-501 in North Carolina, apparently.

I can confirm that one, having lived within two miles of said road in Durham for three years. The "US" is normally omitted when speaking about it ("15-501").

Back when US-211 ran all the way into DC on a concurrency with US-29, people in Northern Virginia usually referred to "29-211."

[6a]

US 36 and SR 37 in Ohio are called "36/37".

[vdeane]

US 20 and NY 5 in the Finger Lakes.  They're so well known together ("5 and 20") that many don't know that they're separate routes.

Also US 1 and 9 in northern NJ.

[PHLBOS]

MA 4 & 225 in Lexington & Bedford.

[Thing 342]

I-75/85 in Downtown ATL.
I-40/85 between Hillsborough and Greensboro.

[briantroutman]

US 11/15 qualifies–usually referred to simply as "eleven fifteen"  (no "route" , no "US" ) in the Central Susquehanna Valley. In fact, someone living on US 11 in Danville giving directions to Harrisburg would probably say "Take Route 11 down to 11/15..."  –even though "Take Route 11"  would be accurate by itself.

Same applies to a lesser extent with US 22/322.

And to an even lesser extent, I've heard and seen–most often businesses and advertisements–in Westmoreland, Somerset, and Bedford Counties refer to "70/76" , but on the whole, that usage is no where near as common as "the Turnpike" .

[Zeffy]

I've heard the US 202 / NJ 31 multiplex referred to as 202/31 (two-oh-two thirty-one) plenty of times.

[andrewkbrown]

"Twenty-two and Three" as well as "Sixty-two and Three" for the US 22/SR 3 multiplex and US 62/SR 3 multiplex in Ohio between Cincinnati and Columbus

[TheCatalyst31]

US 18/151 southwest of Madison, though the part near Madison is usually just called Verona Road anyway. Madison has another half-example - the interstate is usually called 90/94, but I-39 is left out (not too surprisingly).

[hbelkins]

US 25/421 between Lexington and Richmond.

[Beeper1]

US-7/20 near Pittsfield.

[SSOWorld]

trimmed...

Also US 1-9 in northern NJ.

FTFU

the 90/94 thing is true as many don't want to acknowledge I-39 except the DOT which signs the emergency detours as 39.

US-51/WIS 29 in Wausau, WI get equal billing.

[cl94]

I-81 and NY 17 in Binghamton is occasionally referred to by both numbers.

Always have heard US 44 and NY 55 said as "44/55". Likewise, the NY 106/107 concurrency is often "106/107".

[Sam]

US 20 and NY 5 in the Finger Lakes.  They're so well known together ("5 and 20") that many don't know that they're separate routes.

*So* well known that it's always called "5 and 20" despite not being signed that way. (Except for one or two places where the highway workers know it so well they put the signs up in the wrong priority order.)

Heck, after living here for 30 years I catch myself forgetting its the same US 20 or NY 5 that I know in other parts of the state. It has a personality all its own

[jp the roadgeek]

The 6/10 expressway in Providence.  8/25 connector in Bridgeport

[Mr. Matté]

trimmed...

Also US 1-9 in northern NJ.

FTFU

But if you wanted to pronounce it correctly, it'd be "1in9" (must be that North Jersey accent).

[doorknob60]

With my limited experience being around the area for only a couple years, US 20/26 from Caldwell, ID (or Vale, OR, for that matter) to Boise, ID. Though their local names (mostly Chinden Blvd and Broadway Ave) are probably more commonly used still.

[DandyDan]

As far as historical multiplexes go, US 73/75 in Nebraska did.  One of my now former coworkers used to live in Nebraska City and he always said the way there was 73-75, even though 73 hasn't actually existed on that road since 1982.  I could have swore on one of the TV news reports recently here in Omaha, the news reporter, who couldn't have been alive when 73-75 existed, called it that.

OTOH, I have no idea what they call US 6-34, the big one which still exists in Nebraska.

[Tom958]

US 1/64 southwest of Raleigh. Extra confusing verbally because 164 is a believable number. 

[bzakharin]

US 202/206 in central NJ is known as 202/206, though the mile markers are posted for 202 only.

[Pete from Boston]

Also US 1 and 9 in northern NJ.

Interestingly, however, you'll also hear this referred to occasionally as just "Route 1" but never as just "Route 9."

[Henry]

I-80/I-90 between Chicago and Cleveland (although I-80 goes through neither city)
I-71/I-75 south of Cincinnati
I-70/I-76 on the Penna Turnpike

[lepidopteran]

Not sure what the US 6/40 multiplex west of Denver was called by locals before I-70 was built, but there's a "6&40 Motel" in Idaho Springs, CO.

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